1.5SMC Series
Vishay Semiconductors
formerly General Semiconductor
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 2 – Pulse Derating Curve
Fig. 1 – Peak Pulse Power Rating Curve
100
100
75
50
10
1
25
0
0.31 x 0.31" (8.0 x 8.0mm)
Copper Pad Areas
0.1
25
50
75
150
175
200
0
100
125
0.1µs
1.0µs
10µs
100µs
1.0ms
10ms
td — Pulse Width (sec.)
TA — Ambient Temperature (°C)
Fig. 4 – Typical Junction Capacitance
Fig. 3 – Pulse Waveform
Uni-Directional
20,000
10,000
150
100
50
Measured at
Zero Bias
TJ = 25°C
Pulse Width (td)
tr = 10µsec.
is defined as the point
Peak Value
IPPM
where the peak current
decays to 50% of IPPM
1,000
100
10
Half Value — IPP
VR, Measured at
Stand-Off
Voltage, VWM
IPPM
2
10/1000µsec. Waveform
as defined by R.E.A.
Uni-Directional
Bi-Directional
TJ = 25°C
f = 1.0MHz
Vsig = 50mVp-p
td
0
1.0
3.0
4.0
0
2.0
1
10
100
400
VWM — Reverse Stand-Off Voltage (V)
t — Time (ms)
Fig. 6 - Maximum Non-Repetitive Forward
Surge Current Uni-Directional Use Only
Fig. 5 – Typical Transient Thermal
Impedance
100
200
100
10
1.0
0.1
8.3ms Single Half Sine-Wave
(JEDEC Method)
TJ = TJ max.
10
0.001
0.01
0.1
1
10
100
1000
1
10
100
Number of Cycles at 60Hz
tp — Pulse Duration (sec)
Document Number 88303
31-Jul-03
www.vishay.com
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