1SMB5921_09 Datasheet, PDF (3/5 Pages) Pan Jit International Inc. – SURFACE MOUNT SILICON ZENER DIODE

1SMB5921~1SMB5942
2.5
2
1.5
1
0.5
0
0 20 40 60 80 100 120 140 150 180
LEAD TEMPERATURE, ^OC
Fig.1 Steady State Power Derating
10
8
VZ@IZT
6
4
2
0
-2
-4
2
4
6
8
10
12
VZ, ZENER VOLTAGE (VOLTS)
Fig.2 Zener Voltage - to 12 volts
200
100
70
50
30
20
VZ@IZT
10
10
20 30 50 70 100
200
Vz, ZENER VOLTAGE (VOLTS)
Fig.3 Zener Voltage - 14 to 200 Volts
200
100
70
50
30
20
10
7
5
3
2
5
IZ(dc)=1mA
10mA
20mA
IZ(rms)=0.1IZ(dc)
7 10 20 30 40 50 60 70 100
Vz, ZENER VOLTAGE (VOLTS)
Fig.5 Effect of Zener Voltage
STAD-FEB.10.2009
1
1K
500
200
100
50
20
10
5
2
1
0.5 1 2
VZ=150V
ITZJ(
= 25^OC
rms) =0
.
1
IZ(dc)
62V
22V
12V
6.8V
5 10 20 50 100 200 500
Iz, ZENER TEST CURRENT (mA)
Fig.4 Effect of Zener Current
1K
500
300
200
R E C TA N G U L A R
NONREPETITIVE
WAV E F O R M
TJ =25^OC PRIOR
TO INTIAL PULSE
100
50
30
20
10
0.1 0.20.3 0.5 1 2 3 5 10 20 30 50 100
PW, PULSE WIDTH (ms)
Fig.6 Maximum Surge Power
PAGE . 3