1SMB5921-AU~1SMB5942-AU
10
8
2.5
2
V
@I
ZT
Z
6
4
2
0
1.5
1
0.5
0
-2
-4
2
4
6
8
10
12
0
20
40 60
80 100 120 140 150 180
LEAD TEMPERATURE, O
C
V , ZENER VOLTAGE (VOLTS)
Z
Fig.1 Steady State Power Derating
Fig.2 Zener Voltage - to 12 volts
1K
200
T
= 25OC
(rms) =0.1 I (dc)
Z
500
J
I
V
@I
ZT
Z
V
Z
Z=150V
200
100
50
100
70
62V
50
30
20
10
5
22V
12V
20
2
1
6.8V
10
10
20
30
50 70 100
200
0.5
1
2
5
10 20 50 100 200 500
Vz, ZENER VOLTAGE (VOLTS)
Iz, ZENER TEST CURRENT (mA)
Fig.3 Zener Voltage - 14 to 200 Volts
Fig.4 Effect of Zener Current
1K
RECTANGULAR
NONREPETITIVE
WAVEFORM
=25OC PRIOR
200
100
I
(dc)=1mA
500
Z
T
J
300
200
TO INTIAL PULSE
70
50
30
20
100
50
10mA
10
7
5
30
20
I
(rms)=0.1I (dc)
Z
20mA
3
2
Z
5
7
10
20 30
40 50 60 70
100
10
0.1 0.20.3 0.5
1
2 3
5
10 2030 50 100
Vz, ZENER VOLTAGE (VOLTS)
PW, PULSE WIDTH (ms)
Fig.6 Maximum Surge Power
Fig.5 Effect of Zener Voltage
PAGE . 3
STAD-FEB.10.2009
1
PANJIT [ PAN JIT INTERNATIONAL INC. ]
