HZ Series
Silicon Epitaxial Planar Zener Diodes
for stabilized power supply
Features
• Low leakage, low zener impedance and maximum
power dissipation of 500 mW are ideally suited for
stabilized power supply, etc.
• Wide spectrum from 1.8 V through 38 V of zener
voltage provide flexible application.
Max. 0.5
Max. 1.9
Min. 27.5
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
XXX
ST
Max. 3.9
Min. 27.5
Glass Case DO-35
Dimensions in mm
Absolute Maximum Ratings (T
a
= 25
O
C)
Parameter
Power Dissipation
Junction Temperature
Storage Temperature Range
Symbol
P
tot
T
j
T
stg
Characteristics at T
a
= 25
O
C
(V
F
= 1 V Max. at I
F
= 100 mA)
Type
HZ2A3
HZ2B1
HZ2B2
HZ2B3
HZ2C1
HZ2C2
HZ2C3
HZ3A1
HZ3A2
HZ3A3
HZ3B1
HZ3B2
HZ3B3
HZ3C1
HZ3C2
HZ3C3
HZ4A1
HZ4A2
HZ4A3
HZ4B1
HZ4B2
HZ4B3
HZ4C1
HZ4C2
Zener Voltage
1)
V
Z
Min. (V)
Max. (V)
1.8
2
1.9
2.1
2
2.2
2.1
2.3
2.2
2.4
2.3
2.5
2.4
2.6
2.5
2.7
2.6
2.8
2.7
2.9
2.8
3
2.9
3.1
3
3.2
3.1
3.3
3.2
3.4
3.3
3.5
3.4
3.6
3.5
3.7
3.6
3.8
3.7
3.9
3.8
4
3.9
4.1
4
4.2
4.1
4.3
at l
ZT
(mA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
E
T
M
E
S
Reverse Leakage Current
I
R
at V
R
Max. (µA)
(V)
25
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
0.5
5
1
5
1
5
1
5
1
5
1
5
1
5
1
5
1
- 55 to + 175
H
C
Value
500
Unit
mW
O
175
C
C
O
Dynamic Resistance
Z
ZT
at l
ZT
Max. (Ω)
(mA)
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
100
5
SEMTECH ELECTRONICS LTD.
®
Dated: 14//07/2014
Rev
：
01
HZ Series
Fig.1- Zener current versus zener voltage
10
-2
HZ2B2
HZ12B2
HZ24-2
Zener Current Iz (A)
10
-5
10
-6
HZ36-2
10
-4
HZ6B2
HZ30-2
10
-3
HZ4B2
HZ9B2
HZ16-2
HZ20-2
10
-7
10
-8
0
5
10
15
20
25
30
35
E
T
M
E
S
Fig.2 Temperature Coefficient
Vs. Zener voltage
( %/ C)
Zener voltage Vz (v)
Fig. 3 Power dissipation Vs.
Ambient temperature
%/ C
Zener voltage
temperature coefficient z (mV / C)
H
C
40
Zener voltage
temperature coefficient
z
mV / C
Zener voltage
V
Z
( V )
Power dissipation Ptot
( mW )
Ambient temperature T
a ( C )
SEMTECH ELECTRONICS LTD.
®
Dated: 14//07/2014
Rev
：
01
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