LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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LC6.5 – LC170A
Available
1500 Watt Low Capacitance
Transient Voltage Suppressor
DESCRIPTION
This hermetically sealed Transient Voltage Suppressor (TVS) product family includes a
rectifier diode element in series and in the opposite direction. This allows it to present a very
low (< 100 pF) capacitance to the system it is protecting (see Figure 2). The low capacitance
of these devices makes them particularly useful for protecting lines carrying high frequency
signals. They are also useful in protecting from the secondary effects of lightning in airborne
avionics per IEC61000-4-5, RTCA/DO-160G, and ARINC 429. If bidirectional transient
capability is required, two of these low capacitance TVS devices may be used in parallel in
opposite directions (anti-parallel) for complete ac protection as shown in Figure 4.
Screening in
reference to
MIL-PRF-19500
available
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
Unidirectional low-capacitance TVS series for flexible thru-hole mounting.
For bidirectional applications, use two in anti-parallel (see Figure 4).
Suppresses transients up to 1500 watts @ 10/1000 µs (see Figure 1).
Clamps transients in less than 100 pico seconds (theoretical for unidirectional).*
Working voltage (VWM) range 6.5 V to 170 V.
5% and 10% tolerance versions available.
Hermetic sealed DO-13 metal package.
Screening options available in reference to MIL-PRF-19500.
(See Part Nomenclature for all available options.)
RoHS compliant versions available.
*measurement limitation
APPLICATIONS / BENEFITS
Protection from switching transients and induced RFI.
Low capacitance for data line protection up to 1 MHz.
Protection for fast data rate lines in aircraft up to:
- RTCA/DO-160G Level 5 Waveform 4 and Level 2 Waveform 5A (also see MicroNote 130)
- ARINC 429, Part 1, paragraph 2.4.1.1 up to bit rates of 100 kb/s
ESD & EFT protection per IEC 61000-4-2 and -4-4.
Secondary lightning protection per IEC61000-4-5 with 42 ohms source impedance:
Class 1: LC6.5 to LC170A
Class 2: LC6.5 to LC150A
Class 3: LC6.5 to LC70A
Class 4: LC6.5 to LC36A
Secondary lightning protection per IEC61000-4-5 with 12 ohms source impedance:
Class 1 : LC6.5 to LC90A
Class 2: LC6.5 to LC45A
Class 3: LC6.5 to LC22A
Class 4: LC6.5 to LC11A
Secondary lightning protection per IEC61000-4-5 with 2 ohms source impedance:
Class 2: LC6.5 to LC20A
Class 3: LC6.5 to LC10A
Inherently radiation hard as described in Microsemi MicroNote 050.
DO-202AA (DO-13)
Package
Also available in:
Case 1 package
(plastic equivalent)
LCE6.5 – LCE170A
DO-215AB package
(Gull wing surface mount)
SMCGLCE6.5 –
SMCGLCE170A
DO-214AB package
(J-bend surface mount)
SMCJLCE6.5 –
SMCJLCE170A
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
T4-LDS-0293, Rev. 1 (5/6/13)
©2013 Microsemi Corporation
Page 1 of 6


LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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LC6.5 – LC170A
MAXIMUM RATINGS
Parameters/Test Conditions
Symbol
Value
Unit
Junction and Storage Temperature
Thermal Resistance, Junction to Lead @ 0.375 inch
(10 mm) from body
Thermal Resistance, Junction to Ambient (1)
Peak Pulse Power @ TL = +25 ºC (2)
Power Dissipation @ TL +125 ºC (3)
Solder Temperature @ 10 s
TJ and TSTG
R ӨJL
R ӨJA
P PP
PD
T SP
-65 to +175
50
110
1500
1
260
ºC
ºC/W
ºC/W
W
W
oC
Notes: 1. When mounted on FR4 PC board with 4 mm2 copper pads (1 oz) and track width 1 mm, length 25 mm.
2. At 10/1000 µs with repetition rate of 0.01% or less (see Figure 1).
3. At 3/8 inch (10 mm) from body. TVS devices are not typically used for dc power dissipation and are instead operated at or less than their
rated standoff voltage (VWM) except for transients that briefly drive the device into avalanche breakdown (VBR to VC region). Also see
Figures 2, 3 and 4 for further protection details in rated peak pulse power for unidirectional and bidirectional configurations respectively.
MECHANICAL and PACKAGING
CASE: Welded, hermetically sealed metal and glass.
TERMINALS: Tin-lead plated or RoHS compliant annealed matte-tin plating. Solderable per MIL-STD-750 method 2026.
MARKING: Part number and polarity diode symbol.
POLARITY: Cathode connected to case and polarity indicated by diode symbol.
TAPE & REEL option: Standard per EIA-296 (add “TR” suffix to part number). Consult factory for quantities.
WEIGHT: Approximately 1.4 grams.
See Package Dimensions on last page.
PART NOMENCLATURE
MQ LC 6.5 A (e3)
Reliability Level
MQ (reference JAN)
MX (reference JANTX)
MV (reference JANTXV)
MSP (reference JANS)
Blank = Commercial
Low Capacitance
RoHS Compliance
e3 = RoHS compliant
Blank = non-RoHS compliant
Tolerance Level
A = +/- 5 %
blank = +/- 10 %
Reverse Standoff Voltage (VWM)
(See Electrical Characteristics
table)
Symbol
I (BR)
V (BR)
VWM
VC
I PP
P PP
ID
SYMBOLS & DEFINITIONS
Definition
Breakdown Current: The current used for measuring breakdown voltage V(BR).
Breakdown Voltage: This is the breakdown voltage the device will exhibit at 25 oC.
Rated Working Standoff Voltage: The maximum peak voltage that can be applied over the operating temperature range.
Maximum Clamping Voltage: The maximum peak voltage appearing across the TVS when subjected to the peak pulse
current in a one millisecond time interval. The peak pulse voltage is the combination of voltage rise due to both the
series resistance and thermal rise and positive temperature coefficient (αV(BR)).
Peak Impulse Current: The peak current during the impulse.
Peak Pulse Power: The pulse power as determined by the product of VC and IPP.
Standby Current: The current at the standoff voltage VWM.
T4-LDS-0293, Rev. 1 (5/6/13)
©2013 Microsemi Corporation
Page 2 of 6


LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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LC6.5 – LC170A
ELECTRICAL CHARACTERISTICS @ 25 oC
PART
NUMBER
LC6.5
LC6.5A
LC7.0
LC7.0A
LC7.5
LC7.5A
LC8.0
LC8.0A
LC8.5
LC8.5A
LC9.0
LC9.0A
LC10
LC10A
LC11
LC11A
LC12
LC12A
LC13
LC13A
LC14
LC14A
LC15
LC15A
LC16
LC16A
LC17
LC17A
LC18
LC18A
LC20
LC20A
LC22
LC22A
LC24
LC24A
LC26
LC26A
LC28
LC28A
LC30
LC30A
LC33
LC33A
LC36
LC36A
LC40
LC40A
LC43
LC43A
LC45
LC45A
LC48
LC48A
LC51
LC51A
RATED
WORKING
STANDOFF
VOLTAGE
V WM
Volts
6.5
6.5
7.0
7.0
7.5
7.5
8.0
8.0
8.5
8.5
9.0
9.0
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
20
20
22
22
24
24
26
26
28
28
30
30
33
33
36
36
40
40
43
43
45
45
48
48
51
51
BREAKDOWN VOLTAGE
V (BR)
Volts
MIN MAX
7.22 8.82
7.22 7.98
7.78 9.51
7.78 8.60
8.33 10.2
8.33 9.21
8.89 10.9
8.89 9.83
9.44 11.5
9.44 10.4
10.0 12.2
10.0 11.1
11.1 13.6
11.1 12.3
12.2 14.9
12.2 13.5
13.3 16.3
13.3 14.7
14.4 17.6
14.4 15.9
15.6 19.1
15.6 17.2
16.7 20.4
16.7 18.5
17.8 21.8
17.8 19.7
18.9 23.1
18.9 20.9
20.0 24.4
20.0 22.1
22.2 27.1
22.2 24.5
24.4 29.8
24.4 26.9
26.7 32.6
26.7 29.5
28.9 35.3
28.9 31.9
31.1 38.0
31.1 34.4
33.3 40.7
33.3 36.8
36.7 44.9
36.7 40.6
40.0 48.9
40.0 44.2
44.4 54.3
44.4 49.1
47.8 58.4
47.8 52.8
50.0 61.1
50.0 55.3
53.3 65.1
53.3 58.9
56.7 69.3
56.7 62.7
@
I (BR)
mA
10
10
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MAXIMUM
STANDBY
CURRENT
ID @VWM
MAXIMUM
CLAMPING
VOLTAGE
VC @ IPP
µA
1000
1000
500
500
250
250
100
100
50
50
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Volts
12.3
11.2
13.3
12.0
14.3
12.9
15.0
13.6
15.9
14.4
16.9
15.4
18.8
17.0
20.1
18.2
22.0
19.9
23.8
21.5
25.8
23.2
26.9
24.4
28.8
26.0
30.5
27.6
32.2
29.2
35.8
32.4
39.4
35.5
43.0
38.9
46.6
42.1
50.1
45.4
53.5
48.4
58.0
53.3
64.3
58.1
71.4
64.5
76.7
69.4
80.3
72.7
85.5
77.4
91.1
82.4
MAXIMUM
PEAK
IMPULSE
CURRENT
IPP @
10/1000 µs
Amps
100
100
100
100
100
100
100
100
94
100
89
97
80
88
74
82
68
75
63
70
58
65
56
61
52
57
49
54
46
51
42
46
38
42
35
39
32
36
30
33
28
31
25.4
28.1
23.3
25.8
21.0
23.3
19.5
21.6
18.7
20.6
17.5
19.4
16.5
18.2
MAXIMUM
CAPACI-
TANCE
C@0
Volts,
f = 1 MHz
pF
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
WORKING
INVERSE
BLOCKING
VOLTAGE
V WIB
Volts
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
150
150
150
150
150
150
150
150
INVERSE
BLOCKING
LEAKAGE
CURRENT
I IB @ V WIB
µA
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
PEAK
INVERSE
BLOCKING
VOLTAGE
VOLTS
V PIB
Volts
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
200
200
200
200
200
200
200
200
continued
T4-LDS-0293, Rev. 1 (5/6/13)
©2013 Microsemi Corporation
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LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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LC6.5 – LC170A
ELECTRICAL CHARACTERISTICS @ 25 oC (continued)
PART
NUMBER
LC54
LC54A
LC58
LC58A
LC60
LC60A
LC64
LC64A
LC70
LC70A
LC75
LC75A
LC80
LC80A
LC90
LC90A
LC100
LC100A
LC110
LC110A
LC120
LC120A
LC130
LC130A
LC150
LC150A
LC160
LC160A
LC170
LC170A
RATED
WORKING
STANDOFF
VOLTAGE
V WM
Volts
54
54
58
58
60
60
64
64
70
70
75
75
80
80
90
90
100
100
110
110
120
120
130
130
150
150
160
160
170
170
BREAKDOWN VOLTAGE
V (BR)
Volts
MIN MAX
60.0 73.3
60.0 66.3
64.4 78.7
64.4 71.2
66.7 81.5
66.7 73.7
71.1 86.9
71.1 78.6
77.8 95.1
77.8 86.0
83.3 102.0
83.3 92.1
88.7 108
88.7 98.0
100 122
100 111
111 136
111 123
122 149
122 135
133 163
133 147
144 176
144 159
167 204
167 185
178 218
178 197
189 231
189 209
@
I (BR)
mA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MAXIMUM
STANDBY
CURRENT
ID @VWM
µA
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
MAXIMUM
CLAMPING
VOLTAGE
VC @ IPP
Volts
96.3
87.1
103.0
93.6
107.0
96.8
114.0
103.0
125
113
134
121
142
129
160
146
179
162
196
178
214
193
231
209
268
243
287
259
304
275
MAXIMUM
PEAK
IMPULSE
CURRENT
IPP @
10/1000 µs
Amps
15.6
17.2
14.6
16.0
14.0
15.5
13.2
14.6
12.0
13.3
11.2
12.4
10.6
11.6
9.4
10.3
8.4
9.3
7.7
8.4
7.0
7.8
6.5
7.2
5.6
6.2
5.2
5.8
4.9
5.4
MAXIMUM
CAPACI-
TANCE
C@0
Volts,
f = 1 MHz
pF
100
100
100
100
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
WORKING
INVERSE
BLOCKING
VOLTAGE
V WIB
Volts
150
150
150
150
150
150
150
150
150
150
150
150
150
150
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
INVERSE
PEAK
BLOCKING INVERSE
LEAKAGE BLOCKING
CURRENT VOLTAGE
I IB @ V WIB
µA
VOLTS
V PIB
Volts
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 200
10 400
10 400
10 400
10 400
10 400
10 400
10 400
10 400
10 400
10 400
10 400
10 400
NOTE 1: TVS devices are normally selected according to the reverse standoff voltage (VWM) which should be equal to or greater than the DC or peak
operating voltage level.
T4-LDS-0293, Rev. 1 (5/6/13)
©2013 Microsemi Corporation
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LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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GRAPHS
LC6.5 – LC170A
Pulse Time (tw) in µs
FIGURE 1
Peak Pulse Power vs Pulse Time (tw) in µs
T4-LDS-0293, Rev. 1 (5/6/13)
©2013 Microsemi Corporation
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LC13A (Microsemi)
1500 Watt Low Capacitance Transient Voltage Suppressor

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PACKAGE DIMENSIONS
LC6.5 – LC170A
NOTES:
1 Dimensions are in inches.
2 Millimeter equivalents are given for information only.
3 The major diameter is essentially constant along its length.
4 Dimension to allow for pinch or seal deformation anywhere along
tubulation.
5 Symbol for bidirectional transient suppressor.
6 Lead 1 is electrically connected to the case.
7 In accordance with ASME Y14.5M, diameters are equivalent to Φx
symbology.
Symbol
BD
BL
CD
CL
LD
LL
Dimensions
Inches
Millimeters
Min Max Min Max
0.215 0.235 5.46 5.97
0.315 0.350 8.00 8.90
0.045 0.100 1.14 2.54
- 0.210 -
5.33
0.026 0.035 0.660 0.889
1.000 1.625 25.40 41.28
Notes
3
4
APPLICATIONS SCHEMATIC
The TVS low capacitance device configuration is shown in figure 2. As a further option for unidirectional applications, an additional
low capacitance rectifier diode may be used in parallel in the same polarity direction as the TVS as shown in figure 3. In
applications where random high voltage transients occur, this will prevent reverse transients from damaging the internal low
capacitance rectifier diode and also provide a low voltage conducting direction. The added rectifier diode should be of similar low
capacitance and also have a higher reverse voltage rating than the TVS clamping voltage VC. The Microsemi recommended
rectifier part number is the “LCR80” for the application in figure 3. If using two (2) low capacitance TVS devices in anti-parallel for
bidirectional applications, this added protective feature for both directions (including the reverse of each rectifier diode) is also
provided. The unidirectional and bidirectional configurations in figure 3 and 4 will both result in twice the capacitance of figure 2.
FIGURE 2
TVS with internal Low
Capacitance Diode
T4-LDS-0293, Rev. 1 (5/6/13)
FIGURE 3
Optional Unidirectional
configuration (TVS and
separate rectifier diode
in parallel)
©2013 Microsemi Corporation
FIGURE 4
Optional Bidirectional
configuration (two TVS
devices in anti-parallel)
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