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SM5A27 Datasheet(PDF) 1 Page - General Semiconductor

Part No. SM5A27
Description  SURFACE MOUNT AUTOMOTIVE TRANSIENT VOLTAGE SUPPRESSOR
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Maker  GE [General Semiconductor]
Homepage  http://www.vishay.com
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SM5A27 Datasheet(HTML) 1 Page - General Semiconductor

   
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SM5A27 TRANSIENT SUPPRESSOR
SURFACE MOUNT AUTOMOTIVE TRANSIENT VOLTAGE SUPPRESSOR
Zener Voltage - 27.0 Volts
Peak Pulse Current - 70.0 Amps
FEATURES
¨ Ideally suited for load dump protection
¨ Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
¨ High temperature stability due to unique oxide passivation
¨ Exclusive patented PARª oxide passivated
chip construction
¨ Integrally molded heatsink provides
a very low thermal resistance
for maximum heat dissipation
¨ Low leakage current at TJ=175¡C
¨ Low forward voltage drop
¨ High temperature soldering guaranteed:
260¡C for 10 seconds at terminals
MECHANICAL DATA
Case: Molded plastic body, surface mount with heatsink
integrally mounted in the encapsulation
Terminals: Plated, solderable per MIL-STD-750,
Method 2026
Polarity: Heatsink is anode
Mounting Position: Any
Weight: 0.091 ounce, 2.58 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25¡C ambient temperature unless otherwise specified.
SYMBOLS
SM5A27
UNITS
Steady state power dissipation
PD
5.0
Watts
Non-repetitive peak reverse surge current for 10
ms/10ms
exponentially decaying waveform
IRSM
70.0
Amps
Maximum working peak stand-off voltage
VWM
22.0
Volts
Minimum reverse zener voltage at 10mA
VZ
24.0
Volts
Maximum reverse zener voltage at 10mA
VZ
30.0
Volts
Maximum zener voltage temperature coefficient at IZ=10mA
VZTC
36.0
mV/¡C
Peak forward surge current, 8.3ms single half sine-wave
IFSM
500.0
Amps
Maximum clamping voltage for 10
ms/10ms exponentially
decaying waveform at IPP=55A
VC
40.0
Volts
Maximum instantaneous forward voltage at 6.0A (NOTE 1)
VF
1.0
Volts
Maximum reverse leakage current at rated VWM
TJ=25¡C
0.2
TJ=175¡C
IR
10.0
mA
Maximum thermal resistance junction to case
RQJC
1.0
¡C/W
Operating junction and storage temperature range
TJ, TSTG
-55 to +175
¡C
NOTE:
(1) Measured on a 300
ms square pulse width
NOTICE: Advanced product information is subject to change without notice
2/23/99
Dimensions in inches
and
(millimeters)
DO-218
0.093(2.4)
0.116(3.0)
0.059(1.5)
0.098(2.5)
0.098(2.5)
0.138(3.5)
0.366(9.3)
0.343(8.7)
0.406(10.3)
0.382(9.7)
0.342(8.7)
0.327(8.3)
0.413(10.5)
0.374(9.5)
0.539(13.7)
0.524(13.3)
LEAD 2/METAL HEATSINK
0.020(0.5)
0.028(0.7)
0.028(0.7)
0.012(0.3)
0.197(5.0)
0.185(4.7)
LEAD 1
0.628(16.0)
0.592(15.0)
NEW PRODUCT
NEW PRODUCT
NEW PRODUCT
*Patent #Õs, 4,980,315,
5,166,769,
5,278,095
PA
TENTED
*


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