VISHAY
BZX84 Series
Vishay Semiconductors
Zener Diodes
Features
• These diodes are also available in other case
styles and other configurations including: the
SOD-123 case with type designation BZT52
series, the dual zener diode common anode con-
figuration in the SOT-23 case with type designa-
tion AZ23
series and the dual zener diode common cathode
configuration in the SOT-23 case with type desig-
nation DZ23 series.
• 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.
• Silicon Planar Power Zener Diodes
3
1
2
18078
Mechanical Data
Case:
SOT-23 Plastic Package
Weight:
Approx. 8 mg
Packaging Codes/Options:
E8 / 10k per 13 " reel (8 mm tape), 30k/box
E9 / 3k per 7 " reel (8 mm tape), 30k/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)
150
- 65 to + 150
Unit
°C/W
°C
°C
Device on fiberglass substrate, see layout.
Document Number 85763
Rev. 2, 15-Jul-03
www.vishay.com
1
BZX84 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
www.vishay.com
4
Document Number 85763
Rev. 2, 15-Jul-03
VISHAY
BZX84 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 85763
Rev. 2, 15-Jul-03
www.vishay.com
5
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