20D680K (TYEE)
Varistor

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Varistor Specification
TYEE Varistor
Varistor are voltage dependent, nonlinear device which have an
electrical behavior similar to back-to-back zener diodes.
TYEE series zinc oxide varistor are nonlinear resistors, consisting
main of zinc oxide and several kinds of metal oxide additive.
They are bilateral and symmetrical V-I characteristics curve and
unparalleled large peak current capability are used for absorption
of transient voltage, suppression of pulse noise and circuit
voltage stabilization.
Applications
Features
Surge Protection in consumer electronics
Fast response
-- industrial electronics
Excellent voltage ratio
-- telephone and telecommunication systems High stabilization for circuit voltage
-- automobile equipments
Unparalleled absorption for transient voltage
-- measuring and controller systems
characteristics
-- electronic home appliances
Bilateral and symmetrical V-I Characteristics
-- gas and petroleum appliances
curve
Absorption of switching surge from various
kinds of relays and electro-magnetic valves.
Electrostatic discharge an spike noise suppression.
Protection of various kinds of transistors, diodes, ICs,
thyristors, triac semiconductors, and etc.
Automobile control system such as transistorized ignition
system and electronic fuel injection system, and etc.
Related Standards
UL1414, UL1449(2nd Edition), CSA, VDE
Explanation of Part Numbers
05
D 220
K
Element Dia.
05 ψ5.0mm
07 ψ7.0mm
10 ψ10.0mm
14 ψ14.0mm
18 ψ18.0mm
20 ψ20.0mm
Type
D
Varistor Voltage
Examples
220
22 × 100 = 22V
221
22 × 101 = 220V
Tolerance
K:±10%
or customer
special
requirement
TYEE Products Inc.
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Page : 1/15


20D680K (TYEE)
Varistor

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Device Ratings and Characteristics
05D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@0.1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking ACrms(V) DC(V) Min. Vb(Vdc) Max. Vc(V) Ip(A) 10/1000µs (A)
(W) (pF)
05D180K
11 14 14.4 18 21.6 44
1
0.4
100 0.01 1600
05D220K
14 18 18.7 22 26.0 51
1
0.5
100 0.01 1500
05D270K
17 22 23.0 27 31.1 60
1
0.6
100 0.01 1450
05D330K
20 26 29.5 33 36.5 73
1
0.8
100 0.01 1400
05D390K
25 31 35 39 46 86
1
0.9
100 0.01 700
05D470K
30
38 42 47
55 104
1
1.1
100 0.01 650
05D560K
35
45 50 56
66 123
1
1.3
100 0.01 600
05D680K
40
56 61 68
80 150
1
1.6
100 0.01 580
05D820K
50
65 74 82
90 145
5
2.5
400
0.10
310
05D101K
60 85 90 100 110 175 5
3.0
400
0.10
290
05D121K
75 100 108 120 132 210 5
4.0
400
0.10
270
05D151K
95 125 135 150 165 260 5
4.8
400
0.10
240
05D181K
115 150 162 180 198 325
5
5.9
400
0.10
140
05D201K
130 170 185 200 225 355
5
6.5
400 0.10 120 ☆ △ ※ ◎
05D221K
140 180 198 220 242 380
5
7.0
400 0.10 110 ☆ △ ※ ◎
05D241K
150 200 216 240 264 415
5
8.0
400 0.10 110 ☆ △ ※ ◎
05D271K
175 225 247 270 303 475
5
8.5
400 0.10 100 ☆ △ ※ ◎
05D301K
195 250 270 300 330 505
5
9.0
400 0.10 100 ☆ △ ※ ◎
05D331K
210 275 297 330 363 600
5
10.0
400 0.10 90 ☆ △ ※ ◎
05D361K
230 300 324 360 396 620
5
10.0
400 0.10 80 ☆ △ ※ ◎
05D391K
250 320 351 390 429 675
5
12.0
400 0.10 80 ☆ △ ※ ◎
05D431K
275 350 387 430 473 745
5
13.0
400 0.10 70 ☆ △ ※ ◎
05D471K
300 385 423 470 517 810
5
15.0
400 0.10 70 ☆ △ ※ ◎
05D511K
320 410 459 510 561 880
5
15.0
400 0.10 65 ☆ △ ※ ◎
05D561K
350 460 504 560 616 940
5
15.0
400 0.10 65 ☆ △ ※ ◎
05D621K
385 505 558 620 682 1050 5
15.0
400 0.10 65 ☆ △ ※ ◎
05D681K
420 560 612 680 748 1150 5
15.0
400 0.10 60 ☆ △ ※ ◎
05D751K
460 615 675 750 825 1290 5
15.0
400 0.10 60 ☆ △ ※ ◎
Application Notes for UL Recognized Components
Related Standards
Standard No.
UL 1414
UL 1449(2nd Edition)
Title Across-The-Line Transient Voltage
Components
Surge Suppressors
File No.
E165143
E150709
Symbols
CSA
Accessories and Parts
for Electronic Products
LR109736-1
VDE
Varistors for use in
Electronic equipment
21557-4790-001
Selection guide
1.Determine the necessary steady-state voltage (working voltage).
2.Establish the transient energy absorbed by the varistor
3.Calculate the peak transient current through the varistor
4.Determine power dissipation requirement.
5.Select a model to provide the required voltage-clamping characteristics
TYEE Products Inc.
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Page:2/15


20D680K (TYEE)
Varistor

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07D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking ACrms(V) DC(V) Min. Vb(Vdc) Max. Vc(V) Ip(A) 10/1000µs (A)
(W) (pF)
07D180K
11
14 14.4 18 21.6 42
2.5
0.9
250 0.02 3800
07D220K
14
18 18.7 22 26.0 47
2.5
1.1
250 0.02 3600
07D270K
17
22 23.0 27 31.1 53
2.5
1.4
250 0.02 3400
07D330K
20
26 29.5 33 36.5 65
2.5
1.7
250 0.02 2900
07D390K
25 31 35 39 43 77 2.5
2.1
250 0.02 1600
07D470K
30 38 42 47 52 93 2.5
2.5
250 0.02 1550
07D560K
35 45 50 56 62 110 2.5
3.1
250 0.02 1500
07D680K
40 56 61 68 75 135 2.5
3.6
250 0.02 1200
07D820K
50 65 74 82 90 135 10
5.5
1200
0.25
860
07D101K
60
85 90 100 110 165
10
6.5
1200
0.25
750
07D121K
75 100 108 120 132 200 10
7.8
1200
0.25
530
07D151K
95 125 135 150 165 250 10
9.7
1200
0.25
410
07D181K
115 150 162 180 198 300 10
11.7
1200
0.25
300
07D201K
130 170 185 200 225 340 10
13.0
1200 0.25 250 ☆ △ ※ ◎
07D221K
140 180 198 220 242 360 10
14.0
1200 0.25 250 ☆ △ ※ ◎
07D241K
150 200 216 240 264 395 10
15.0
1200 0.25 240 ☆ △ ※ ◎
07D271K
175 225 247 270 303 455 10
18.0
1200 0.25 220 ☆ △ ※ ◎
07D301K
195 250 270 300 330 500 10
20.0
1200 0.25 190 ☆ △ ※ ◎
07D331K
210 275 297 330 363 550 10
25.0
1200 0.25 180 ☆ △ ※ ◎
07D361K
230 300 324 360 396 595 10
25.0
1200 0.25 170 ☆ △ ※ ◎
07D391K
250 320 351 390 429 650 10
25.0
1200 0.25 160 ☆ △ ※ ◎
07D431K
275 350 387 430 473 710 10
28.0
1200 0.25 150 ☆ △ ※ ◎
07D471K
300 385 423 470 517 775 10
30.0
1200 0.25 130 ☆ △ ※ ◎
07D511K
320 410 459 510 561 845 10
30.0
1200 0.25 120 ☆ △ ※ ◎
07D561K
350 460 504 560 616 915 10
30.0
1200 0.25 120 ☆ △ ※ ◎
07D621K
385 505 558 620 682 1025 10
30.0
1200 0.25 120 ☆ △ ※ ◎
07D681K
420 560 612 680 748 1120 10
30.0
1200 0.25 110 ☆ △ ※ ◎
07D751K
460 615 675 750 825 1240 10
33.0
1200 0.25 100 ☆ △ ※ ◎
07D781K
485 640 702 780 858 1290 10
37.0
1200
0.25
90 ☆ △ ※ ◎
07D821K
510 670 738 820 902 1355 10
40.0
1200
0.25
90 ☆ △ ※ ◎
Related Standards
Standard No.
UL 1414
Title Across-The-Line
Components
File No.
E165143
Symbols
UL 1449(2nd Edition)
Transient Voltage
Surge Suppressors
E150709
CSA
Accessories and Parts
for Electronic Products
LR109736-1
VDE
Varistors for use in
Electronic equipment
21557-4790-001
TYEE Products Inc.
http://www.tyeeusa.com/
Page:3/15


20D680K (TYEE)
Varistor

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10D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking ACrms(V) DC(V) Min. Vb(Vdc) Max. Vc(V) Ip(A) 10/1000µs (A)
(W) (pF)
10D180K
11 14 14.4 18 21.6 39
5
2.1
500 0.05 16000
10D220K
14 18 18.7 22 26.0 43
5
2.5
500 0.05 11000
10D270K
17 22 23.0 27 31.1 53
5
3.0
500 0.05 8000
10D330K
20 26 29.5 33 36.5 65
5
4.0
500 0.05 6300
10D390K
25 31 35 39 43 77
5
4.6
500 0.05 5200
10D470K
30 38 42 47 52 93
5
5.5
500 0.05 4600
10D560K
35
45 50 56
62 110
5
7.0
500 0.05 3750
10D680K
40
56 61 68
75 135
5
8.2
500 0.05 2800
10D820K
50
65 74 82
90 135
25
12.0
2500 0.40 1920 ☆ ◎
10D101K
60
85 90 100 110 165
25
15.0
2500 0.40 1800 ☆ ◎
10D121K
75 100 108 120 132 200 25
18.0
2500 0.40 1500 ☆ ◎
10D151K
95 125 135 150 165 250 25
22.0
2500 0.40 1200 ☆ ◎
10D181K
115 150 162 180 198 300 25
27.0
2500 0.40 620 ☆ ◎
10D201K
130 170 185 200 225 340 25
30.0
2500 0.40 570 ☆ △ ※ ◎
10D221K
140 180 198 220 242 360 25
32.0
2500 0.40 560 ☆ △ ※ ◎
10D241K
150 200 216 240 264 395 25
35.0
2500 0.40 550 ☆ △ ※ ◎
10D271K
175 225 247 270 303 455 25
40.0
2500 0.40 530 ☆ △ ※ ◎
10D301K
195 250 270 300 330 500 25
42.0
2500 0.40 500 ☆ △ ※ ◎
10D331K
210 275 297 330 363 550 25
47.0
2500 0.40 450 ☆ △ ※ ◎
10D361K
230 300 324 360 396 595 25
47.0
2500 0.40 450 ☆ △ ※ ◎
10D391K
250 320 351 390 429 650 25
60.0
2500 0.40 430 ☆ △ ※ ◎
10D431K
275 350 387 430 473 710 25
65.0
2500 0.40 400 ☆ △ ※ ◎
10D471K
300 385 423 470 517 775 25
70.0
2500 0.40 300 ☆ △ ※ ◎
10D511K
320 410 459 510 561 845 25
70.0
2500 0.40 260 ☆ △ ※ ◎
10D561K
350 460 504 560 616 915 25
70.0
2500 0.40 200 ☆ △ ※ ◎
10D621K
385 505 558 620 682 1025 25
70.0
2500 0.40 170 ☆ △ ※ ◎
10D681K
420 560 612 680 748 1120 25
70.0
2500 0.40 160 ☆ △ ※ ◎
10D751K
460 615 675 750 825 1240 25
75.0
2500 0.40 150 ☆ △ ※ ◎
10D781K
485 640 702 780 858 1290 25
80.0
2500 0.40 150 ☆ △ ※ ◎
10D821K
510 670 738 820 902 1355 25
85.0
2500 0.40 150 ☆ △ ※ ◎
10D911K
550 745 819 910 1001 1500 25
93.0
2500 0.40 140 ☆ △ ※ ◎
10D102K
625 825 900 1000 1100 1650 25
102.0
2500 0.40 140 ☆ △ ※ ◎
10D112K
680 895 990 1100 1210 1815 25
115.0
2500 0.40 130 ☆ ※ ◎
Related Standards
Standard No.
UL 1414
Title Across-The-Line
Components
File No.
E165143
Symbols
UL 1449(2nd Edition)
Transient Voltage
Surge Suppressors
E150709
CSA
Accessories and Parts
for Electronic Products
LR109736-1
VDE
Varistors for use in
Electronic equipment
21557-4790-001
TYEE Products Inc.
http://www.tyeeusa.com/
Page:4/15


20D680K (TYEE)
Varistor

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14D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking ACrms(V) DC(V) Min. Vb(Vdc) Max.
14D180K 11 14 14.4 18 21.6
14D220K 14 18 18.7 22 26.0
14D270K 17 22 23.0 27 31.1
14D330K 20 26 29.5 33 36.5
14D390K
25
31 35 39
43
14D470K
30
38 42 47
52
14D560K
35
45 50 56
62
14D680K
40
56 61 68
75
14D820K
50
65 74 82
90
14D101K 60 85 90 100 110
14D121K
75 100 108 120 132
14D151K
95 125 135 150 165
14D181K
115 150 162 180 198
14D201K
130 170 185 200 225
14D221K
140 180 198 220 242
14D241K
150 200 216 240 264
14D271K
175 225 247 270 303
14D301K
195 250 270 300 330
14D331K
210 275 297 330 363
14D361K
230 300 324 360 396
14D391K
250 320 351 390 429
14D431K
275 350 387 430 473
14D471K
300 385 423 470 517
14D511K
320 410 459 510 561
14D561K
350 460 504 560 616
14D621K
385 505 558 620 682
14D681K
420 560 612 680 748
14D751K
460 615 675 750 825
14D781K
485 640 702 780 858
14D821K
510 670 738 820 902
14D911K
550 745 819 910 1001
14D102K
625 825 900 1000 1100
14D112K
680 895 990 1100 1210
14D182K
1000 1465 1620 1800 1980
Related Standards
Vc(V)
39
43
53
65
77
93
110
135
135
165
200
250
300
340
360
395
455
500
550
595
650
710
775
845
915
1025
1120
1240
1290
1355
1500
1650
1815
2970
Ip(A)
10
10
10
10
10
10
10
10
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
10/1000µs
4.0
5.0
6.0
7.5
8.6
10.0
11.0
14.0
22.0
28.0
32.0
40.0
50.0
57.0
60.0
63.0
70.0
73.0
93.0
93.0
100.0
115.0
125.0
125.0
125.0
125.0
130.0
143.0
148.0
157.0
175.0
190.0
213.0
337.0
(A)
1000
1000
1000
1000
1000
1000
1000
1000
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
(W) (pF)
0.1 25000
0.1 20000
0.1 16000
0.1 12200
0.1 7000
0.1 6750
0.1 6500
0.1 5500
0.6 4300 ☆ ◎
0.6 3500 ☆ ◎
0.6 2500 ☆ ◎
0.6 2100 ☆ ◎
0.6 1250 ☆ ◎
0.6 1150 ☆ △ ※ ◎
0.6 1100 ☆ △ ※ ◎
0.6 1050 ☆ △ ※ ◎
0.6 1000 ☆ △ ※ ◎
0.6 900 ☆ △ ※ ◎
0.6 850 ☆ △ ※ ◎
0.6 800 ☆ △ ※ ◎
0.6 800 ☆ △ ※ ◎
0.6 650 ☆ △ ※ ◎
0.6 550 ☆ △ ※ ◎
0.6 450 ☆ △ ※ ◎
0.6 400 ☆ △ ※ ◎
0.6 350 ☆ △ ※ ◎
0.6 350 ☆ △ ※ ◎
0.6 330 ☆ △ ※ ◎
0.6 330 ☆ △ ※ ◎
0.6 330 ☆ △ ※ ◎
0.6 300 ☆ △ ※ ◎
0.6 300 ☆ △ ※ ◎
0.6 200 ☆ ※ ◎
0.6 150
Standard No.
UL 1414
UL 1449(2nd Edition)
CSA
VDE
Title
Across-The-Line Transient Voltage
Accessories and Parts
Components
Surge Suppressors for Electronic Products
Varistors for use in
Electronic equipment
File No.
Symbols
E165143
E150709
LR109736-1
21557-4790-001
TYEE Products Inc.
http://www.tyeeusa.com/
Page:5/15


20D680K (TYEE)
Varistor

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18D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking ACrms(V) DC(V) Min. Vb(Vdc) Max. Vc(V) Ip(A) 10/1000µs (A)
(W) (pF)
18D180K
11 14 14.4 18 21.6 39 15
8.3
2000
0.15 36400
18D220K
14 18 18.7 22 26.0 43 15 10.4
2000
0.15 27300
18D270K
17 22 23.0 27 31.1 53 15 12.5
2000
0.15 22290
18D330K
20 26 29.5 33 36.5 65 15 15.6
2000
0.15 18200
18D390K
25 31 35 39 43 77 15 17.9
2000
0.15 12250
18D470K
30 38 42 47 52 93 15 20.8
2000
0.15 12280
18D560K
35 45 50 56 62 110 15 22.8
2000
0.15 11100
18D680K
40 56 61 68 75 135 15 29.1
2000
0.15 10460
18D820K
50 65 74 82 90 135 75 30.6
5500
0.8
7460
18D101K
60
85 90 100 110 165
75
38.9
5500
0.8
7280
18D121K
75 100 108 120 132 200 75
44.4
6500
0.8
5000
18D151K
95 125 135 150 165 250 75
55.6
6500
0.8
3820
18D181K
115 150 162 180 198 300 75
69.4
6500
0.8
2270
18D201K
130 170 185 200 225 330 75
79.2
6500 0.8 2100 ☆ △ ※ ◎
18D221K
140 180 198 220 242 360 75
83.3
6500 0.8 2000 ☆ △ ※ ◎
18D241K
150 200 216 240 264 395 75
87.5
6500 0.8 2000 ☆ △ ※ ◎
18D271K
175 225 247 270 303 455 75
97.2
6500 0.8 1910 ☆ △ ※ ◎
18D301K
195 250 270 300 330 500 75
101.4
6500
0.8 1630 ☆ △ ※ ◎
18D331K
210 275 297 330 363 550 75
129.2
6500
0.8 1590 ☆ △ ※ ◎
18D361K
230 300 324 360 396 595 75
129.2
6500
0.8 1540 ☆ △ ※ ◎
18D391K
250 320 351 390 429 650 75
138.9
6500
0.8 1270 ☆ △ ※ ◎
18D431K
275 350 387 430 473 710 75
159.7
6500
0.8 1220 ☆ △ ※ ◎
18D471K
300 385 423 470 517 775 75
173.6
6500
0.8 1090 ☆ △ ※ ◎
18D511K
320 410 459 510 561 845 75
175.0
6500
0.8
950 ☆ △ ※ ◎
18D561K
350 460 504 560 616 915 75
177.8
6500
0.8
770 ☆ △ ※ ◎
18D621K
385 505 558 620 682 1025 75
180.6
6500
0.8
510 ☆ △ ※ ◎
18D681K
420 560 612 680 748 1120 75
182.0
6500
0.8
500 ☆ △ ※ ◎
18D751K
460 615 675 750 825 1240 75
200.2
6500
0.8
480 ☆ △ ※ ◎
18D781K
485 640 702 780 858 1290 75
207.2
6500
0.8
450 ☆ △ ※ ◎
18D821K
510 675 738 820 902 1355 75
219.8
6500
0.8
450 ☆ △ ※ ◎
18D911K
550 745 819 910 1001 1500 75
245.0
6500
0.8
430 ☆ △ ※ ◎
18D102K
625 825 900 1000 1100 1650 75
266.0
6500
0.8
410 ☆ △ ※ ◎
18D112K
680 895 990 1100 1210 1815 75
298.2
6500
0.8
360 ☆ ※ ◎
18D182K
1000 1465 1620 1800 1980 2970 75
478.0
6500
0.8
260
Related Standards
Standard No.
UL 1414
UL 1449(2nd Edition)
CSA
VDE
Title
Across-The-Line Transient Voltage
Accessories and Parts
Components
Surge Suppressors for Electronic Products
Varistors for use in
Electronic equipment
File No.
Symbols
E165143
E150709
LR109736-1
21557-4790-001
TYEE Products Inc.
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Page:6/15


20D680K (TYEE)
Varistor

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20D Series
Part No.
Maximum
Varistor
Clamping Voltage Maximum Maximum Rated Typical
Allowable
Voltage
@ Test Current Energy Peak Current Power Capacitance
Device
Voltage
(@1mA)
(8/20µs)
(J) (8/20µs)
(@1KHz) Standards
Marking
20D180K
20D220K
20D270K
20D330K
20D390K
20D470K
20D560K
20D680K
20D820K
20D101K
20D121K
20D151K
20D181K
20D201K
20D221K
20D241K
20D271K
20D301K
20D331K
20D361K
20D391K
20D431K
20D471K
20D511K
20D561K
20D621K
20D681K
20D751K
20D781K
20D821K
20D911K
20D102K
20D112K
ACrms(V) DC(V) Min. Vb(Vdc) Max.
11 14 14.4 18 21.6
14 18 18.7 22 26.0
17 22 23.0 27 31.1
20 26 29.5 33 36.5
25 31 35 39 43
30 38 42 47 52
35 45 50 56 62
40 56 61 68 75
50 65 74 82 90
60 85 90 100 110
75 100 108 120 132
95 125 135 150 165
115 150 162 180 198
130 170 185 200 225
140 180 198 220 242
150 200 216 240 264
175 225 247 270 303
195 250 270 300 330
210 275 297 330 363
230 300 324 360 396
250 320 351 390 429
275 350 387 430 473
300 385 423 470 517
320 410 459 510 561
350 460 504 560 616
385 505 558 620 682
420 560 612 680 748
460 615 675 750 825
485 640 702 780 858
510 675 738 820 902
550 745 819 910 1001
625 825 900 1000 1100
680 895 990 1100 1210
Vc(V)
39
43
53
65
77
93
110
135
135
165
200
250
300
340
360
395
455
500
550
595
650
710
775
845
915
1025
1120
1240
1290
1355
1500
1650
1815
Ip(A) 10/1000µs
20 11.0
20 14.0
20 18.0
20 23.0
20 26.0
20 33.0
20 41.0
20 46.0
100 38.0
100 45.0
100 55.0
100 70.0
100 85.0
100 95.0
100 100.0
100 108.0
100 127.0
100 150.0
100 163.0
100 163.0
100 180.0
100 190.0
100 220.0
100 220.0
100 220.0
100 220.0
100 230.0
100 255.0
100 265.0
100 282.0
100 310.0
100 342.0
100 383.0
(A)
2000
2000
2000
2000
2000
2000
2000
2000
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
(W) (pF)
0.2 40000
0.2 30000
0.2 24500
0.2 20000
0.2 13800
0.2 13500
0.2 12200
0.2 11500
1.0 8200 ☆ ◎
1.0 8000 ☆ ◎
1.0 5500 ☆ ◎
1.0 4200 ☆ ◎
1.0 2500 ☆ ◎
1.0 2300 ☆ △ ※ ◎
1.0 2200 ☆ △ ※ ◎
1.0 2200 ☆ △ ※ ◎
1.0 2100 ☆ △ ※ ◎
1.0 1800 ☆ △ ※ ◎
1.0 1750 ☆ △ ※ ◎
1.0 1700 ☆ △ ※ ◎
1.0 1400 ☆ △ ※ ◎
1.0 1350 ☆ △ ※ ◎
1.0 1200 ☆ △ ※ ◎
1.0 1050 ☆ △ ※ ◎
1.0 850 ☆ △ ※ ◎
1.0 570 ☆ △ ※ ◎
1.0 550 ☆ △ ※ ◎
1.0 530 ☆ △ ※ ◎
1.0 500 ☆ △ ※ ◎
1.0 500 ☆ △ ※ ◎
1.0 480 ☆ △ ※ ◎
1.0 460 ☆ △ ※ ◎
1.0 400 ☆ ※ ◎
20D182K
1000 1465 1620 1800 1980 2970 100 625.0
6500
1.0
250
Related Standards
Standard No.
UL 1414
UL 1449(2nd Edition)
CSA
VDE
Title
Across-The-Line Transient Voltage
Accessories and Parts
Components
Surge Suppressors for Electronic Products
Varistors for use in
Electronic equipment
File No.
Symbols
E165143
E150709
LR109736-1
21557-4790-001
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20D680K (TYEE)
Varistor

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Dimension Table
Dimension of Standard Products
Unit:mm
Model
05D 07D 10D 14D 18D 20D
Symbol
D(max.) 7.5 9.0 14.0 17.5 23.0 25.0
H(max.) 10.0 12.0 17.0 20.5 26.0 28.0
W(±1.0) 5.0 5.0 7.5 7.5 7.5 10.0
L(min.) 25.0 25.0 25.0 25.0 25.0 25.0
d(±0.02) 0.6 0.6 0.8 0.8 0.8 1.0
T(max). Table
Unit:mm
Part No 05D 07D 10D 14D 18D 20D
180K 3.3 3.5 3.9 4.0 4.2 4.3
220K 3.6 3.8 4.2 4.3 4.5 4.6
270K 3.8 4.0 4.4 4.5 4.7 4.8
330K 3.3 3.5 3.9 4.0 4.2 4.3
390K 3.5 3.7 4.1 4.2 4.4 4.5
470K 3.7 3.9 4.3 4.4 4.6 4.7
560K 4.0 4.2 4.6 4.7 4.9 5.0
680K 4.3 4.5 4.9 5.0 5.2 5.3
820K 3.3 3.5 3.9 4.0 4.2 4.3
101K 3.6 3.8 4.2 4.3 4.5 4.6
121K 3.8 4.0 4.4 4.5 4.7 4.8
151K 4.1 4.3 4.7 4.8 5.0 5.1
181K 3.2 3.4 3.8 3.9 4.1 4.2
201K 3.3 3.5 3.9 4.0 4.2 4.3
221K 3.4 3.6 4.0 4.1 4.3 4.4
241K 3.5 3.7 4.1 4.2 4.4 4.5
271K 3.7 3.9 4.2 4.3 4.5 4.6
Part No 05D 07D 10D 14D 18D 20D
301K 3.9 4.1 4.3 4.4 4.6 4.7
331K 4.0 4.2 4.5 4.6 4.8 4.9
361K 4.1 4.3 4.7 4.8 5.0 5.1
391K 4.2 4.4 4.8 4.9 5.1 5.2
431K 4.4 4.6 5.0 5.1 5.3 5.4
471K 4.6 4.8 5.2 5.3 5.5 5.6
511K 4.8 5.0 5.3 5.4 5.6 5.7
561K 5.0 5.2 5.5 5.6 5.7 5.9
621K 5.3 5.5 5.7 5.8 6.0 6.1
681K 5.4 5.6 5.8 5.9 6.1 6.2
751K 5.6 5.8 6.0 6.1 6.3 6.4
781K 5.8 6.0 6.3 6.4 6.6 6.7
821K x 6.3 6.5 6.6 6.8 6.9
911K x x 6.6 6.7 6.9 7.0
102K x x 7.0 7.1 7.3 7.4
112K x x 7.4 7.5 7.7 7.9
182K x x x 11.5 11.7 11.9
Packing Quantity
Part No.
05DXXXK
07DXXXK
10DXXXK
14DXXXK
18DXXXK
20DXXXK
Min. Q'ty(pcs) Min. Q'ty(pcs)
/ Bags
/Inner Box
1000
1000
500
500
250
250
10000
5000
3000
2000
1000
1000
Min. Q'ty(pcs)
/Carton
20000
10000
6000
4000
2000
2000
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Page:8/15


20D680K (TYEE)
Varistor

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Crimped Lead Type
Type I
Type II
Type III
Symbol
A max. Varistor Voltage
Series
18V to 330V
05D Series
13.0
07D Series
15.0
10D Series
19.5
V1mA(V) 360V to 1800V
13.0
15.0
20.5
Dmax.
7.5 9.0 14.0
K
1.2±0.4
1.2±0.4
1.4±0.4
W
5.0±1.0
5.0±1.0
7.5±1.0
CL
5.0±0.5
5.0±0.5
5.0±0.5
φd 0.6 0.6
Symbol T : Product thickness please refer to dimension of standard products
0.8
Packing Quantity
Cut-off Straight Lead
05DXXXK-TTS
07DXXXK-TTS
10DXXXK-TTS
14DXXXK-TTS
18DXXXK-TTS
20DXXXK-TTS
Cut-off
Type I Lead
-TTK
Cut-off
Cut-off
Type II Lead Type III Lead
-TTI -TTH
-TTK
-TTI -TTH
-TTK
-TTI -TTH
-TTK
-TTI -TTH
N/A N/A N/A
N/A N/A N/A
Min. Q'ty
(pcs)/Bags
1000
1000
500
500
250
250
14D Series
22.5
23.5
17.5
1.4±0.4
7.5±1.0
5.0±0.5
0.8
Min. Q'ty
(pcs)/Inner Box
15000
15000
5000
3000
1500
1500
Unit:mm
20D Series
30.5
32.0
25.0
1.6±0.4
10.0±1.0
5.0±0.5
1.0
Min. Q'ty
(pcs)/Carton
30000
30000
10000
6000
3000
3000
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20D680K (TYEE)
Varistor

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Tape and Reel Fig.
05D07D Type I Lead
FIG 1
05D07D Straight Lead
FIG 2
10D Type I Lead
FIG 3
10D Straight Lead
FIG 4
14D Type I Lead
FIG 5
Taping product ordering Information
Tape & Reel
Striaght Lead
Type I Lead
Type II
Lead
Type III
Lead
05DXXXK-TRS
07DXXXK-TRS
10DXXXK-TRS
14DXXXK-TRS
-TRK
-TRI
-TRH
-TRK
-TRI
-TRH
-TRK
-TRI
-TRH
-TRK
-TRI
-TRH
OUTSIDE INSIDE CRIMPED
KINK
KINK
14D Straight Lead
FIG 6
Striaght Lead
05DXXXK-BTS
07DXXXK-BTS
10DXXXK-BTS
Flax Box
Type I Lead Type II Lead
Type III
Lead
-BTK
-BTI -BTH
-BTK
-BTI -BTH
-BTK
-BTI -BTH
OUTSIDE INSIDE CRIMPED
KINK
KINK
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20D680K (TYEE)
Varistor

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DIMENSION OF TAPING PRODUCT
Symbol
PARAMETER
P Pictch of Component
P0 Feed Hole Pitch
P1 Feed Hole Center to Lead
P2 Hole Center to Component Center
F Lead to Lead Distance
h Component Alignment
W Tape Width
W0 Hold Down Tape Width
W1 Hole Position
W2 Hold Down Tape Position
H
Height from Tape Center to Component
Base
H0 Seating Plane Height
H1 Component Height
D0 Feed Hole Diameter
t Total Tape Thickness
L Leagth of Clipped Lead
Note: Dimensions are in mm
05D series
12.7±.1.0
12.7±.0.2
3.85±0.7
6.35±0.7
5.0±0.8
2.0 Max
18.0+1.0
18.0-0.5
5.0MIN.
9.0+0.75
9.0-0.50
3.0Max
18.0+2.0
18.0-0.0
16.0±0.5
29.0Max
4.0±0.2
0.7±0.2
11.0 Max
Model Size
07D series
10D series
12.7±.1.0 12.7±.1.0 15.0±.1.0
12.7±.0.2 12.7±.0.2 15.0±.0.2
3.85±0.7 3.75±0.7 3.85±0.7
6.35±0.7
-
7.5±1.3
5.0±0.8
7.5±0.8
7.5±0.8
2.0 Max
2.0 Max
2.0 Max
18.0+1.0 18.0+1.0 18.0+1.0
18.0-0.5
18.0-0.5
18.0-0.5
5.0MIN.
5.0MIN.
5.0MIN.
9.0+0.75 9.0+0.75 9.0+0.75
9.0-0.50
9.0-0.50
9.0-0.50
3.0Max
3.0Max
3.0Max
18.0+2.0 18.0+2.0 18.0+2.0
18.0-0.0
18.0-0.0
18.0-0.0
16.0±0.5 16.0±0.5 16.0±0.5
32.0Max 36.0Max 36.0Max
4.0±0.2
4.0±0.2
4.0±0.2
0.7±0.2
0.7±0.2
0.7±0.2
11.0 Max 11.0 Max 11.0 Max
14D series
25.4±.1.0
25.4±.0.2
8.95±0.7
12.7±0.7
7.5±0.8
2.0 Max
18.0+1.0
18.0-0.5
5.0MIN.
9.0+0.75
9.0-0.50
3.0Max
18.0+2.0
18.0-0.0
16.0±0.5
40.0Max
4.0±0.2
0.7±0.2
11.0 Max
Packing Q'ty
Tape & Reel (TRK/TRI/TRH Type)
Model No.
Min.Q'ty Min.Q'ty(pcs) Min. Q'ty (pcs)
(pcs) /Reel /Inner Box
/Carton
Flat Box (BTK/BTI/BTH TYPE)
Model No.
Min.Q'ty (pcs) Min.Q'ty (pcs)
/Reel
/Inner Box
FIG
180K~391K 2000
05D
431K~821K 1500
4000
3000
16000
12000
180K~621K
681K~821K
1000
800
10000
8000
1&2
1&2
180K~391K 2000
07D
431K~821K 1500
4000
3000
16000
12000
180K~621K
681K~821K
1000
800
10000
8000
1&2
1&2
10D 180K~621K
P12.7mm 681K~112K
1000
800
2000
1600
8000
6400
180K~621K
681K~112K
1000
800
8000
6400
3&4
3&4
10D 180K~621K 1000
P15.0mm 681K~112K 800
2000
1600
8000
6400
180K~621K
681K~112K
800
600
6400
4800
1&2
1&2
180K~391K 800
1600
6400
5&6
14D 431K~621K 700
1400
5600
5&6
681K~112K 600
1200
4800
5&6
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20D680K (TYEE)
Varistor

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Packing Information
1.Standard
Packing Bag unit:cm
L
Label
L
05D to 10D Series
14D to 20D Series
10.5
19.5
Part No.
Quantity
Lot No.
2.Flat box
Inspected by
Inner box dimension
20.3
18
Carton Dimensions (Height 21.5cm)
26
44
3.Tape & Reel
Symbol
A
B
C
unit:mm
05D~10D
340 max
55max
330max
Symbol
W
D
A
B
unit:mm
05D07D
10D14D
45 55
350max
ψ30
ψ90
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20D680K (TYEE)
Varistor

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Performance CharacteristicsElectrical
Characteristics
Test Methods/Description
Standard Test Condition
Environmental conditions under which every measuring is done without
doubt on the measuring results. Unless specially specified, temperature,
relative humidity are 5 to 35 , 45 to 85 % RH.
Varistor Voltage
The voltage between two terminals with the specified measuring current
CmA DC applied is called Vc or VcmA . The measurement shall be made
as fast as possible to avoid heat affection.
Maximum Allowable Voltage The maximum sinusoidal RMS voltage or maximum DC voltage that can be
applied continuously in the specified environmental temperature range.
The maximum voltage between two terminals with the specified standard
impulse current (8/20μs) illustrated below applied.
Specifications
Clamping Voltage
To meet the specified
value
Rated Power
Maximum Energy
The power that can be applied in the specified ambient temperature.
The maximum energy within the varistor voltage change of ± 10 % when
one impulse of 2 ms or 10/1000 μs is applied.
Maximum
peak Current
Withstanding
Surge
Current
2 times
1 times
The maximum current within the varistor voltage change of ± 10 % with
the standard impulse current (8/20 μs) applied two times with an interval of
5 minutes.
The maximum current within the varistor voltage change of ± 10 % with
the standard impulse current (8/20 μs) applied one times.
Temperature Coefficient of
Varistor Voltage
Capacitance
Vc at 85 ℃ ─ Vc at 25
Vc at 25
×1
60
× 100 ( %/
Capacitance shall be measured at 1 KHz ± 10 %, 1Vrms max .
0V bias and 20±2
)
- 0.05 %/max
To meet the specified
value
Withstanding Voltage
( Body Insulation )
The specified voltage shall be applied both terminals of the specimen
connected together and metal foil closely wrapped round its body for 1
minute. Electrical breakdown shall be examined.
Classification
( Nominal varistor voltage )
V0.1 mA, V1 mA 330V
V0.1 mA, V1 mA 330V
Test Voltage
( AC )
1000 Vrms
1500 Vrms
No breakdown
Impulse LifeI
The change of Vc shall be measured after the impulse listed below
is applied 10000 times continuously with the interval of ten seconds at
room temperature .
5 Series
7 Series
10 Series
14 Series
20 Series
05D180K to 05D680K
05D820K to 05D471K
07D180K to 07D680K
07D820K to 07D471K
10D180K to 10D680K
10D820K to 10D112K
14D180K to 14D680K
14D820K to 14D182K
20D180K to 20D680K
20D820K to 20D182K
0.5A (2 ms)
20A (8/20μs)
18A (8/20μs)
50A (8/20μs)
50A (8/20μs)
100A (8/20μs)
75A (8/20μs)
150A (8/20μs)
120A (8/20μs)
200A (8/20μs)
VcmA / VcmA±10%
Note: Varistor voltage change of forward direction shall be measured in the test of uni-pole surge life and DC load life
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20D680K (TYEE)
Varistor

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Electrical
Characteristics
Impulse LifeII
Test Methods
The change of Vc shall be measured after the impulse listed below
is applied 100000 times continuously with the interval of ten seconds at
room temperature .
5 Series
05D180K to 05D680K
05D820K to 05D471K
0.45A (2 ms)
14A (8/20μs)
7 Series
07D180K to 07D680K
07D820K to 07D471K
12A (8/20μs)
35A (8/20μs)
10 Series
10D180K to 10D680K
10D820K to 10D471K
35A (8/20μs)
70A (8/20μs)
14 Series
14D180K to 14D680K
14D820K to 14D471K
45A (8/20μs)
90A (8/20μs)
20 Series
20D180K to 20D680K
20D820K to 20D471K
55A (8/20μs)
100A (8/20μs)
Specifications
VcmA/VcmA±10%
Note: Varistor voltage change of forward direction shall be measured in the test of uni-pole surge life and DC load life
Mechanical
Characteristics
Robustness of
Terminations
(Tensile)
Robustness of
Terminations
(Bending)
Test Methods
Specifications
After gradually applying the force specified below and keeping the
unit fixed for the seconds, the terminal shall be visually examined for
any damage.
Terminal diameter
Ø 0.6 mm
Ø 0.8 mm
Ø 1.0 mm
Force
9.8 N 1.0Kgf
9.8 N 1.0Kgf
19.6 N 2.0Kgf
The unit shall be secured with its terminal kept vertical and the
force specified below be applied in the axial direction.
The terminal shall gradually be bent by 90° in one direction, then 90°in the No outstanding
opposite direction, and again back to the original position.
damage
The damage of the terminal shall be visually examined.
Terminal diameter
Force
Ø 0.6 mm
4.9 N 0.5Kgf
Ø 0.8 mm
4.9 N 0.5Kgf
Ø 1.0 mm
9.8 N 1.0Kgf
Vibration
After repeadly applying a single harmonic vibration (amplitude: 0.75 mm)
double amplitude:1.5mm with 1 minute vibration frequency cycles (10
Hz to 55 Hz to 10 Hz) to each of three perpendicular directions for
2 hours. Thereafter, the unit shall be visually examined.
Solderadilty
After dipping the terminals to a depth of approximately 3mm from the body Approximately 95% of
in a soldering bath of 235±5for 2±0.5 seconds, the terminal shall be
the terminals shall be
covered with solder
visually examined.
uni-formly
Resistance to
Soldering Heat
After each lead shall be dipped into a solder bath having a temperature
260±5(3 series: 250±5) to a point 2.0 to 2.5 mm from the body of the VcmA/VcmA±5%
unit, using shieldig board (t=1.5mm), be held there for specified time
(3series: 3±1 s, 5 series: 5±1 s and others: 10±1 s ), and then be stored at
room temperature and humidity for 1 to 2 hours. The change of Vc and
No outstanding
damage
mechanical damages are examined.
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20D680K (TYEE)
Varistor

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Environmental
Characteristics
High Temperature
Storage/
Dry Heat
Damp Heat/
Humidity
(Steady State)
Temperature
Cycle
High Temperature
Load/
Dry Heat Load
Damp Heat Load/
Humidity Load
Low Temperature
Storage/Cold
Test Methods
Specifications
The specimen shall be subjected to 125±2 for 1000 hours in a
thermostatic bath without load and then stored at room temperature and
humidity for 1 to 2 hours. Thereafter, the change of Vc shall be measured.
The specimen shall be subjected to 40 ± 2 , 90 to 95 %RH for 1000
hours without load and then stored at room temperature and humidity for
one to two hours. Thereafter, the change of Vc shall be measured.
The temperature cycle shown below shall be repeated five times and then VcmA/VcmA±5%
stored at room temperature and humidity for one to two hours. The change
of Vc and mechanical damage shall be examined.
Step Temperature() Period (minutes)
1 -40± 3
30± 3
2 Room temperature 15± 3
3 125± 2
30± 3
4 Room temperature 15± 3
After being continuously applied the Maximum Allowable Voltage at 85
± 2for 1000 hours. The specimen shall be stored at room temperature VcmA/VcmA±10%
and humidity for one to two hours Thereafter, the change of Vc shall be
measured.
The specimen shall be subjected to 40±2 , 90 to 95 %RH and the
Maximum Allowable Voltage for 1000 hours and then stored at room
temperature and humidity for one to two hours. Thereafter, the change of
Vc shall be measured.
VcmA/VcmA±10%
The specimen shall be subjected to -40±2 without load for 1000 hours VcmA/VcmA±5%
and then stored at room temperature for one to two hours. Thereafter, the
change of Vc shall be measured.
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20D680K.pdf
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