1.5SMC Datasheet, PDF (3/4 Pages) Vishay Siliconix – Surface Mount TRANSZORB Transient Voltage Suppressors

1.5 SMC Series
RATINGS AND CHARACTERISTIC CURVES
100
10
1
0.1
0.1µs
1.0µs
10µs
100µs
1.0ms
10ms
t_d - Pulse Width (sec.)
Fig. 1 - Peak Pulse Power Rating Curve
100
87.5
75
62.5
50
37.5
25
12.5
0
0
25
50
75 100 125 150 175 200
T_A - Ambient Temperature (°C)
Fig.2 - Pulse Derating Curve
150
t_r = 10µsec.
Peak Value
I_PPM
100
T_J = 25°C
Pulse Width (t_d)
is defined as the point
where the peak current
decays to 50% of I_PPM
Half Value- I_PPM
2
50
10/1000µsec.Waveform
as defined by R.E.A.
t_d
0
0
1.0
2.0
3.0
4.0
t - Time(ms)
Fig.3 - Pulse Waveform
10000
1000
Unidirectional
Bidirectional
V_R = 0
V_R = Rated
Stand-off Voltage
100
f = 1MHz
Vsig = 50mVp-p
T_J = 25°C
10
5
10
100
500
VWM - Reverse Stand-Off Voltage (V)
Fig. 4 - Typical Junction Capacitance
8.0
7.0
6.0 ^{L=0.375" (9.5mm)}
Lead Lengths
5.0
60Hz
Resistive or
Inductive Load
4.0
3.0
2.0
1.0
0
0
1.6x1.6x.040"
(40x40x1mm)
Copper Heat Sinks
25 50 75 100 125 150 175 200
T_L - Lead Temperature (°C)
Fig. 5 - Steady State Power Derating Curve
200
8.3ms Single Half Sine-Wave
(JEDEC Method)T_J=T_J max.
100
10
1
10
100
Number of Cycles at 60 Hz
Fig.6 - Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
WEITRON
3/4
http://www.weitron.com.tw
16-Feb-06