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SM5A27 其他数据使用手册 - VISHAY（威世）
制造商:
VISHAY（威世）
封装:
DO-218AB
描述:
表面贴装汽车瞬态电压抑制器 Surface Mount Automotive Transient Voltage Suppressors
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SM5A27数据手册
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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 T
J
=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 P
D
5.0 Watts
Non-repetitive peak reverse surge current for 10ms/10ms
exponentially decaying waveform
I
RSM
70.0 Amps
Maximum working peak stand-off voltage V
WM
22.0 Volts
Minimum reverse zener voltage at 10mA V
Z
24.0 Volts
Maximum reverse zener voltage at 10mA V
Z
30.0 Volts
Maximum zener voltage temperature coefficient at I
Z
=10mA V
ZTC
36.0 mV/¡C
Peak forward surge current, 8.3ms single half sine-wave I
FSM
500.0 Amps
Maximum clamping voltage for 10ms/10ms exponentially
decaying waveform at I
PP
=55A
V
C
40.0 Volts
Maximum instantaneous forward voltage at 6.0A
(NOTE 1)
V
F
1.0 Volts
Maximum reverse leakage current at rated V
WM
T
J
=25¡C 0.2
T
J
=175¡C
I
R
10.0
mA
Maximum thermal resistance junction to case R
QJC
1.0 ¡C/W
Operating junction and storage temperature range T
J
, T
STG
-55 to +175 ¡C
NOTE:
(1) Measured on a 300ms 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
PATENTED
*
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