1N4728A through 1N4764A Series
a. Range for Units to 12 Volts
b. Range for Units to 12 to 100 Volts
100
+12
+10
+8
+6
+4
+2
0
70
50
30
20
RANGE
V
@ I
Z ZT
10
7
5
V
@ I
ZT
Z
RANGE
3
2
-2
1
-4
10
11
12
10
20
30
V , ZENER VOLTAGE (VOLTS)
Z
50
70
100
6
4
7
8
9
3
2
5
V
, ZENER VOLTAGE (VOLTS)
Z
Figure 2. Temperature Coefficients
(-55 °C to +150 °C temperature range; 90% of the units are in the ranges indicated.)
+6
175
150
V
@ I
Z
= 25 °C
Z
+4
+2
T
A
125
100
20 mA
75
50
0
0.01 mA
1 mA
-2
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: EFFECT TEMPERATURE COEFFICIENTS
25
0
-4
4
7
8
3
0
0.1
0.2
0.3
0.4
0.5
0.60.7
0.8
0.9
1
6
5
V
, ZENER VOLTAGE (VOLTS)
Z
L, LEAD LENGTH TO HEAT SINK (INCHES)
Figure 3. Typical Thermal Resistance
versus Lead Length
Figure 4. Effect of Zener Current
100
70
50
RECT ANGULAR
WAVEFORM
11 V - 100 V NONREPETITIVE
3.3 V - 10 V NONREPETITIVE
T
= 25°C PRIOR TO
J
30
20
5% DUTY CYCLE
INITIAL PULSE
10
7
10% DUTY CYCLE
20% DUTY CYCLE
5
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
200
500
1000
PW, PULSE WIDTH (ms)
This graph represents 90 percentile data points.
For worst case design characteristics, multiply surge power by 2/3.
Figure 5. Maximum Surge Power
http://www.takcheong.com
5
TAK_CHEONG [ Tak Cheong Electronics (Holdings) Co.,Ltd ]
