VISHAY
AZ23 Series
Vishay Semiconductors
Dual Common-Anode Zener Diodes
Features
• These diodes are also available in other case
styles and configurations including: the dual diode
common cathode configuration with type designa-
tion DZ23, the single diode SOT-23 case with the
type designation BZX84C, and the single diode
SOD-123 case with the type designation BZT52C.
• Dual Silicon Planar Zener Diodes, Common
Anode
• The Zener voltages are graded according to the
international E 24 standard. Standard Zener volt-
age tolerance is ± 5 %. Replace "C" with " B " for
2 % tolerance. Other voltage tolerances and other
Zener voltages are available upon request.
• The parameters are valid for both diodes in one
case.
∆V
Z
and
∆r
zj
of the two diodes in one case is
≤
5%
3
1
2
18070
Mechanical Data
Case:
SOT-23 Plastic Package
Weight:
Approx. 8 mg
Packaging Codes/Options:
E8 / 10k per 13 " reel (8 mm tape), 30 k/box
E9 / 3k per 7 " reel (8 mm tape), 30 k/box
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Power dissipation
1)
Test condition
Symbol
P
tot
Value
300
1)
Unit
mW
Device on fiberglass substrate, see layout
Thermal Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Thermal resistance junction to ambient air
Junction temperature
Storage temperature range
1)
Test condition
Symbol
R
θJA
T
j
T
S
Value
420
1)
Unit
°C/W
°C
°C
150
- 65 to + 150
Device on fiberglass substrate, see layout
Document Number 85759
Rev. 2, 15-Jul-03
www.vishay.com
1
AZ23 Series
Vishay Semiconductors
Typical Characteristics
(T
amb
= 25
°C
unless otherwise specified)
°C/W
VISHAY
18114
18121
Figure 1. Forward characteristics
Figure 4. Thermal differential resistance versus Zener voltage
18115
18122
Figure 2. Admissible Power Dissipation vs. Ambient Temperature
Figure 5. Dynamic resistance versus Zener voltage
°C
18120
18123
Figure 3. Dynamic Resistance vs. Zener Current
Figure 6. Temperature dependence of Zener voltage versus Zener
voltage
www.vishay.com
4
Document Number 85759
Rev. 2, 15-Jul-03
VISHAY
AZ23 Series
Vishay Semiconductors
18124
18127
Figure 7. Change of Zener voltage versus junction temperature
Figure 10. Change of Zener voltage from turn-on up to the point of
thermal equilibrium versus Zener voltage
°C
18125
18128
Figure 8. Temperature dependence of Zener voltage versus Zener
voltage
Figure 11. Change of Zener voltage from turn-on up to the point of
thermal equilibrium versus Zener voltage
18126
Figure 9. Change of Zener voltage versus junction temperature
Document Number 85759
Rev. 2, 15-Jul-03
www.vishay.com
5
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