VISHAY
BZX85-Series
Vishay Semiconductors
Zener Diodes
Features
• Silicon Planar Power Zener Diodes.
• For use in stabilizing and clipping circuits with high
power rating.
• The Zener voltages are graded according to the
international E 24 standard. Replace suffix "C"
with "B" for ± 2 % tolerance.
17173
Applications
Voltage stabilization
Mechanical Data
Case:
DO-41 Glass case
Weight:
approx. 310 mg
Packaging Codes/Options:
TR / 5 k per 13" reel (52 mm tape), 25 k/box
TAP / 5 k per ammo pack (52 mm tape), 25 k/box
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Zener current (see Table "Electrical
Characteristics")
Power dissipation
1)
Test condition
Symbol
Value
Unit
P
tot
1.3
1)
W
Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature
Thermal Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Thermal resistance junction to
ambient air
Junction temperature
Storage temperature
1)
Test condition
Symbol
R
thJA
T
j
T
S
Value
130
1)
175
- 55 to + 175
Unit
°C/W
°C
°C
Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature
Document Number 85607
Rev. 1.7, 14-Jun-04
www.vishay.com
1
VISHAY
Partnumber
Zener Voltage
Range
1)
Dynamic Resistance
Temperature
Coefficient
of
Zener Voltage
@ I
ZK
mA
min
< 1100
< 1200
< 1500
1.5
1.5
1.5
< 6500
< 7000
< 8000
0.25
0.25
0.25
0.055
0.055
0.055
α
VZ
@ I
Z
= I
ZT
%/°C
max
0.095
0.095
0.095
BZX85-Series
Vishay Semiconductors
Reverse Leakage
Current
Admissible Zener
Current
2)
V
Z
@ I
ZT
V
min
BZX85B160
BZX85B180
BZX85B200
1)
2)
3)
r
ZT3)
Ω
@ I
ZT
mA
r
ZK3)
Ω
@ I
R
µA
< 0.5
< 0.5
< 0.5
@ V
R
V
120
130
150
I
Z
mA
5.8
5.2
4.7
max
163
184
204
157
176
196
Measured with pulses t
p
= 5 ms
Valid provided that leads are kept at ambient temperature at a distance of 10 mm from case
Measured with f = 1 kHz
Typical Characteristics
(T
amb
= 25
°C
unless otherwise specified)
18458
18460
Figure 1. Pulse Thermal Resistance vs. Pulse Duration
Figure 3. Dynamic Resistance vs. Zener Current
18459
18461
Figure 2. Dynamic Resistance vs. Zener Current
Figure 4. Thermal Resistance vs. Lead Length
Document Number 85607
Rev. 1.7, 14-Jun-04
www.vishay.com
5
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