1N4678 Series
TEMPERATURE COEFFICIENTS
(–55°C to +150°C temperature range; 90% of the units are in the ranges indicated.)
100
70
50
+12
+10
+8
30
20
+6
V Ă@ĂI (NOTE 2)
Z ZĂ
RANGE
10
+4
+2
0
7
5
RANGE
V Ă@ĂI
Z
ZT
(NOTE 2)
3
2
-2
-4
1
10
2
3
4
5
6
7
8
9
10
11
12
20
30
50
70
100
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 4a. Range for Units to 12 Volts
Figure 4b. Range for Units 12 to 100 Volts
200
180
160
140
+6
+4
+2
V Ă@ĂI
Z
T Ă=Ă25°C
A
Z
20ĂmA
0
0.01ĂmA
1ĂmA
V Ă@ĂI
Z
ZT
(NOTE 2)
120
100
-2
-4
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: AFFECT TEMPERATURE COEFFICIENTS
120
130
140
150
160
170
180
190
200
3
4
5
6
7
8
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 4c. Range for Units 120 to 200 Volts
Figure 5. Effect of Zener Current
1000
500
100
70
T Ă=Ă25°C
A
T Ă=Ă25°C
A
50
0ĂV BIAS
0 BIAS
200
100
50
30
20
1ĂV BIAS
1ĂVOLTĂBIAS
10
20
10
5
7
5
50% OF V ĂBIAS
Z
50% OF
V ĂBIAS
Z
3
2
2
1
1
1
2
5
10
20
50
100
120
140
160
180
190
200
220
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
Figure 6a. Typical Capacitance 2.4–100 Volts
Figure 6b. Typical Capacitance 120–200 Volts
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6
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