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DATA SHEET
1SMC5348 SERIES
SURFACE MOUNT SILICON ZENER DIODES VOLTAGE
FEATURES
* For surface mounted applications in order to optimize board space. * Low profile package
.128(3.25) .108(2.75)
11 to 39 Volts
CURRENT
5.0 Watts
SMC/DO-214AB
Unit: inch (mm)
* Built-in strain relief * Glass passivated junction * Low inductance * Typical ID less than 1.0A above 13V * Plastic package has Underwriters Laboratory Flammability Classification 94V-O
.280(7.11) .260(6.60)
.012(.305) .006(.152)
MECHANICAL DATA
Case: JEDEC DO-214AB,Molded plastic over passivated junction. Terminals: Solder plated,solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes positive end (cathode) Standard Packaging:16mm tape (EIA-481) Weight: 0.007 ounce, 0.21 gram
.050(1.27) .030(0.76) .320(8.13) .305(7.75)
.103(2.62) .079(2.00)
.008(.203) .002(.051)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
Parameter DC Power Dissipation on TL=75OC ,Measure at Zero Lead Length Derate above 50OC ( NOTE 1) Operating Junction and StorageTemperature Range
Symbol
Value 5.0 40 -55 to +150
.245(6.22) .220(5.59)
Units Watts mW / OC
O
PD TJ , TSTG
C
NOTE: 1.Mounted on 8.0mm2 copper pads to each terminal.
STAD-SEP.03.2003
PAGE . 1
Nominal Zener Voltage Part Number Marking C ode No m. V 5.0 Watt Zener 1SMC5348 1SMC5349 1SMC5350 1SMC5351 1SMC5352 1SMC5353 1SMC5354 1SMC5355 1SMC5356 1SMC5357 1SMC5358 1SMC5359 1SMC5360 1SMC5361 1SMC5362 1SMC5363 1SMC5364 1SMC5365 1SMC5366 348B 349B 350B 351B 352B 353B 354B 355B 356B 357B 358B 359B 360B 361B 362B 363B 364B 365B 366B 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 22.0 24.0 25.0 27.0 28.0 30.0 33.0 36.0 39.0 10.5 11.4 12.4 13.3 14.3 15.2 16.2 17.1 18.1 19.0 20.9 22.8 23.8 25.7 26.6 28.5 31.4 34.2 37.1 11.6 12.6 13.7 14.7 15.8 16.8 17.9 18.9 20.0 21.0 23.1 25.2 26.3 28.4 29.4 31.5 34.7 37.8 41.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 5.0 6.0 8.0 10.0 11.0 14.0 V Z @ IZT M i n. V M a x. V
Max. Zener Impedance ZZT @ IZT mA ZZK @ IZK mA
Max Reverse Leakage Current IR @ VR uA V
125.0 100.0 100.0 100.0 75.0 75.0 70.0 65.0 65.0 65.0 50.0 50.0 50.0 50.0 50.0 40.0 40.0 30.0 30.0
125 125 100 75 75 75 75 75 75 75 75 100 110 120 130 140 150 160 170
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
5.0 2.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
8.4 9.1 9.9 10.6 11.5 12.2 12.9 13.7 14.4 15.2 16.7 18.2 19.0 20.6 21.2 22.8 25.1 27.4 29.7
STAD-SEP.03.2003
PAGE . 2
RATING AND CHARACTERISTIC CURVES
qVz, TEMPERATURE COEFFICIENT (mV/C)@IZT
8
P D , MAXIMUM STEADY STATE POWER DISSIPATION (WATTS)
300 200 100
RANGE
L=1/8"
6
L=3/8"
50 30 20 10 5 0 20 40 60 80 100 120 140 160 180 200 220
4
L=1
2
0 0 20 40 60 80 100 120 140 160 180 200
T L , LEAD TEMPERATURE ( OC)
Vz,ZENER VOLTAGE@Iz T (VOLTS)
Fig.1 Power temperature Derating Curve
Fig.2 Temperature Coefficient-Range for Units 11 to 39 Volts
30
ir, PEAK SURGE CURRENT (AMPS)
1000
20 10 5 2 1 0.5
IZ, ZENER CURRENT (mA)
Vz=3.3V
T=25 O C
100
10
Vz=200V
1
0.2 0.1
0.1
1
10
100
1000
10
20
30
40
50
PW, PULSE WIDTH (ms)
Vz, ZENER VOLTAGE (VOLTS)
Fig.3 Peak Surge Current versus Pulse Width
Fig.4 Zener Voltage versus Zener Current Vz=11 thru 39 Volts
STAD-SEP.03.2003
PAGE . 3

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