SM5A27 Datasheet, PDF (2/2 Pages) General Semiconductor – SURFACE MOUNT AUTOMOTIVE TRANSIENT VOLTAGE SUPPRESSOR

8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
0
FIG. 1 - POWER DERATING CURVE
25 50 75 100 125 150 175 200
CASE TEMPERATURE, ¡C
FIG. 3 - PULSE WAVEFORM
150
tr=10ms
100
PEAK VALUE IPP
TA=25¡C
PULSE WIDTH (td) is
DEFINED as the POINT
WHERE the PEAK CURRENT
DECAYS to 50% of IPP
50
HALF
VALUE
-
IPP
2
SM5A27
FIG. 2 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
100
175¡C
25¡C
10
1
0.1
0.01
0.35
0.45
10,000
0.55
0.65
0.75
0.85
FORWARD VOLTAGE, VOLTS
0.95
FIG. 4 - REVERSE POWER CAPABILITY
td
0
0
5 10 15 20 25 30 35 40
t, TIME, ms
FIG. 5 - LOAD DUMP POWER CHARACTERISTICS
(10ms EXPONENTIAL WAVEFORM)
3,000
1,000
10
100
PULSE WIDTH (ms) - 1/2 IPP EXPONENTIAL WAVEFORM
FIG. 6 - TYPICAL REVERSE CHARACTERISTICS
100
2,500
10
175¡C
2,000
1
1,500
0.1
1,000
500
0.01
0.001
25¡C
0
25
50
75 100 125 150 175
CASE TEMPERATURE, ¡C
0.0001
5
20
35
50
65
80
95
PERCENTAGE OF V(BR), %
FIG. 7 - TYPICAL TRANSIENT THERMAL IMPEDANCE
100
RQJA
10
RQJC
1
0.1
0.01
0.01
0.1
1
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10
100
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