VISHAY
BZT52 Series
Vishay Semiconductors
Zener Diodes
Features
• Silicon Planar Power Zener Diodes
• These diodes are also available in other case
styles and other configurations including: the
SOT-23 case with type designation BZX84 series,
the dual zener diode common anode configuration
in the SOT-23 case with type designation AZ23
series and the dual zener diode common cathode
configuration in the SOT-23 case with type desig-
nation DZ23 series.
17431
• The Zener voltages are graded according to the
international E 24 standard. Standard Zener volt-
age tolerance is ± 5 %. Replace suffix "C" with "B"
for ± 2 % tolerance. Other tolerances and other
Zener voltages are available upon request.
Mechanical Data
Case:
SOD-123 Plastic Case
Weight:
approx. 10 mg
Packaging Codes/Options:
D3 / 10 K per 13 " reel (8 mm tape)
D4 / 3 K per 7 " reel (8 mm tape)
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Zener current see table " Characteristics "
Power dissipation
1)
Test condition
Symbol
P
tot
Value
410
1)
Unit
mW
Diode on ceramic substrate 0.7 mm; 2.5 mm
2
area
Maximum 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
300
1)
150
- 65 to + 150
Unit
°C/W
°C
°C
Valid provided that electrodes are kept at ambient temperature
Document Number 85760
Rev. 2, 01-Jul-03
www.vishay.com
1
BZT52 Series
Vishay Semiconductors
Typical Characteristics
(T
amb
= 25
°C
unless otherwise specified)
VISHAY
18114
18117
Figure 1. Forward characteristics
Figure 4. Dynamic Resistance vs. Zener Current
18115
18118
Figure 2. Admissible Power Dissipation vs. Ambient Temperature
Figure 5. Capacitance vs. Zener Voltage
°
C
18116
18119
Figure 3. Pulse Thermal Resistance vs. Pulse Duration
Figure 6. Dynamic Resistance vs. Zener Current
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4
Document Number 85760
Rev. 2, 01-Jul-03
VISHAY
BZT52 Series
Vishay Semiconductors
°C
18120
18135
, =
Figure 7. Dynamic Resistance vs. Zener Current
Figure 10. Temperature dependence of Zener voltage versus
Zener voltage
°C/W
18121
18124
Figure 8. Thermal differential resistance versus Zener voltage
Figure 11. Change of Zener voltage versus junction temperature
°C
18122
18136
Figure 9. Dynamic resistance versus Zener voltage
Figure 12. Temperature dependence of Zener voltage versus
Zener voltage
Document Number 85760
Rev. 2, 01-Jul-03
www.vishay.com
5
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