1SMB5940 (LGE)
3.0W Surface Mount Silicon Zener Diode

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1SMB5926-1SMB5956
3.0W Surface Mount Silicon Zener Diode
SMB/DO-214AA
Features
For surface mounted applications in order to
optimize board space
Low profile package
Built-in strain relief
Glass passivated junction
Low inductance
High temperature soldering guaranteed:
260oC / 10 seconds at terminals
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Mechanical Data
Case: Molded plastic over passivated junction
Polarity: Color Band denotes positive end
(cathode)
Standard packaging: 12mm tape
Weight: 0.093 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25 oC ambient temperature unless otherwise specified.
Type Number
Symbol
Value
Units
DC Power Dissipation at TL=75oC,
measure at Zero Lead Length
Derate above 75 oC
3.0 Watts
PD
40 mW/ oC
DC Power Dissipation @ TA=25oC
Derate above 25oC
PD
550 mW
4.4 mW/ oC
Thermal Resistance from Junction-to-Lead
Thermal Resistance from Junction-to-Ambient
Operating and Storage Temperature Range
RθJL
RθJA
TJ, TSTG
25
226
-65 to + 150
oC/W
oC/W
oC
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not normal operating conditions)
and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be attached.
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mail:lge@luguang.cn


1SMB5940 (LGE)
3.0W Surface Mount Silicon Zener Diode

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1SMB5926-1SMB5956
3.0W Surface Mount Silicon Zener Diode
ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted)
Device
(Note 1)
1SMB5926
1SMB5927
1SMB5928
1SMB5929
1SMB5930
1SMB5931
1SMB5932
1SMB5933
1SMB5934
1SMB5935
1SMB5936
1SMB5937
1SMB5938
1SMB5939
1SMB5940
1SMB5941
1SMB5942
1SMB5943
1SMB5944
1SMB5945
1SMB5946
1SMB5947
1SMB5948
1SMB5949
1SMB5950
1SMB5951
1SMB5952
1SMB5953
1SMB5954
1SMB5955
1SMB5956
Device Zener Voltage Range (Note 2)
Marking
Vz @ Izt
IZT
Code
Nom (V) Min (V) Max (V) mA
926B 11 10.45 11.55 34.1
927B 12 11.4 12.6 31.2
928B 13 12.35 13.65 28.8
929B 15 14.25 15.75 25.0
930B 16 15.2 16.8 23.4
931B 18 17.1 18.9 20.8
932B 20 19 21 18.7
933B 22 20.9 23.1 17.0
934B 24 22.8 25.2 15.6
935B 27 25.65 28.35 13.9
936B 30 28.5 31.5 12.5
937B 33 31.35 34.65 11.4
938B 36 34.2 37.8 10.4
939B 39 37.05 40.95 9.6
940B 43 40.85 45.15 8.7
941B 47 44.65 49.35 8.0
942B 51 48.45 53.55 7.3
943B 56 53.2 58.8 6.7
944B 62 58.9 65.1 6.0
945B 68 64.6 71.4 5.5
946B 75 71.25 78.75 5.0
947B 82 77.9 86.1 4.6
948B 91 6.45 95.55 4.1
949B 100 95 105 3.7
950B 110 1.4.5 11505 3.4
951B 120 114 126 3.1
952B 130 123.5 136.5 2.9
953B 150 142.5 157.5 2.5
954B 160 152 168 2.3
955B 180 171 189 2.1
956B 200 190 210 1.9
Zener Impedance (Note 3) Leakage Current IZM
ZZT @ IZT ZZK @ IZK
Ohms Ohms mA
5.5 550 0.25
6.5 550 0.25
7 550 0.25
9 600 0.25
10 600 0.25
12 650 0.25
14 650 0.25
17.5 650 0.25
19 700 0.25
23 700 0.25
28 750 0.25
33 800 0.25
38 850 0.25
45 900 0.25
53 950 0.25
67 1000 0.25
70 1100 0.25
86 1300 0.25
100 1500 0.25
120 1700 0.25
140 2000 0.25
160 2500 0.25
200 3000 0.25
250 3100 0.25
300 4000 0.25
380 4500 0.25
450 5000 0.25
600 6000 0.25
700 6500 0.25
900 7000 0.25
1200 8000 0.25
IR
uA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
VR
V
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
83.6
91.2
98.8
114.0
121.6
137
152
IZTC
mA(dc)
136
125
115
100
93
83
75
66
62
55
50
45
41
38
34
31
29
26
24
22
20
18
16
15
13
12
11
10
9
8
7
Notes:
1. Tolerance and type number designation the type numbers listed indicate a tolerance of ±5%.
2. Zener voltage (VZ) measurement
Nominal Zener voltage is measured with the device junction in thermal equilibrium
with ambient temperature at 25oC.
3. Zener impedance (ZZ) derivation: ZZT and ZZK are measured by dividing the ac voltage
drop across the device by the ac current applied. The specified limits are for
IZ(ac) = 0.1 IZ(dc) with the ac frequency = 60 Hz.
http://www.luguang.cn
mail:lge@luguang.cn


1SMB5940 (LGE)
3.0W Surface Mount Silicon Zener Diode

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1SMB5926-1SMB5956
3.0W Surface Mount Silicon Zener Diode
RATINGS AND CHARACTERISTIC CURVES (1SMB5926 THRU 1SMB5956)
FIG.1- STEADY STATE POWER DERATING
6
5
4
TL
3
2
1
TA
0
0 25 50 75 100 125
T, TEMPERATURE(oC)
FIG.3- ZENER VOLTAGE - TO 12 VOLTAGES
10
8 VZ @ IZT
6
4
2
0
-2
-4
2 4 6 8 10
VZ, ZENER VOLTAGE (VOLTS)
150
12
FIG.5- VZ = 3.3 THRU 10 VOLTS
100
FIG.2- MAXIMUM SURGE POWER
1000
500
300
200
100
50
30
20
10
0.1
0.2
0.5 1
2
5 10 20
PW, PULSE WIDTH (ms)
50 100
FIG.4- ZENER VOLTAGE - 14 TO 200 VOLTAGES
200
VZ @ IZT
100
70
50
30
20
10
10
20 30
50 70 100
VZ, ZENER VOLTAGE (VOLTS)
FIG.6- VZ = 12 THRU 82 VOLTS
100
200
10 10
11
0.1
0 1 2 3 4 5 6 7 8 9 10
VZ, ZENER VOLTAGE (VOLTS)
0.1
0 10 20 30 40 50 60 70 80 90 100
VZ, ZENER VOLTAGE (VOLTS)
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mail:lge@luguang.cn


1SMB5940 (LGE)
3.0W Surface Mount Silicon Zener Diode

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Click to Download PDF File for PC

1SMB5926-1SMB5956
3.0W Surface Mount Silicon Zener Diode
RATINGS AND CHARACTERISTIC CURVES (1SMB5926 THRU 1SMB5956)
FIG.7- EFFECT OF ZENER VOLTAGE
200
100 IZ(dc) = 1mA
70
50
30
20
10
7 10mA
5
3 20mA
IZ(rms)= 0.1 IZ(dc)
2
5 7 10
20 30
50 70 100
IZ, ZENER CURRENT (mA)
FIG.9- CAPACITANCE CURVE
1000
MEASURED @
100 VZ/2
MEASURED @
ZERO BIAS
FIG.8- EFFECT OF ZENER CURRENT
1000
500
200
100
50
20
10
5.0
2.0
1.0
0.5
1
VZ = 150V
TJ = 25 oC
IZ(rms)= 0.1 IZ(dc)
91V
62V
22V
12V
6.8V
2
5 10 20
50 100 200
500
IZ, ZENER TEST CURRENT (mA)
FIG.10- TYPICAL PULSE RATING CURVE
10
NONREPETITIVE, EXPONENTIAL
PULSE WAVEFORM, TJ = 25oC
1
0.1
TJ = 25oC
10
10 100
BREAKDOWN VOLTAGE (VOLTS)
FIG.11- PULSE WAVEFORM
120
10 s
100
TA = 25oC
PW (ID) IS DEFINED AS THE
POINT WHERE THE PEAK CURRENT
DECAYS TO 50% OF Ipp-
PEAK VALUE
80 Ippm
0.01
0.01
0.1 1
Tp, PULSE WIDTH (ms)
10
FIG.12- PULSE WAVEFORM
120
100
0.9 IPEAK
80
8/20 s WAVEFORM
AS DEFINED BY ANSI C62.1
AND IEC 801-5,
60
40
20
td
0
01
HALF VALUE - Ipp/2
60
10/1000 s WAVEFORM
AS DEFINED BY R.E.A.
2 3 45
t, TIME (ms)
40
20
0.1 IPEAK
0
0
T
0.02
20 s
0.5 IPEAK
0.04
0.06
t, TIME (ms)
T=8 s
0.08
0.1
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