Product Name: Zener Diode
Category: SMD diode series
Product introduction: Series: 4148 4001 4007 2222 5551 5401 5819
Package: LL34, DO-214, SOT-34, SOT-89, SOD-123, SOD-323
Rated power from 0.25W to 5.0W;
The breakdown voltage is from 1.8 volts to 400 volts (about 10% as a level);
Standard Zener diodes have a tolerance of ±5%.
Features:
1. The revolutionary packaging form is suitable for high-speed placement, which can greatly reduce the throwing rate;
2. Suitable for reflow soldering and wave soldering;
3. The strength of the end head can reach the GB/T 2423.29-1999 2MM standard, which weakens the problem of poor bending strength of similar products before;
4. Applicable to electronic products such as computers, instruments, automotive electronics, power supplies, communications, switching power supplies;
5. Comply with the requirements of ROHS directive.
Package:
Glass, LL34 (1/2W), LL41 (1W), LS-34;
Plastic package, SOD-123, SOD-323, SOD-523
model:
LL4148 LL34 2.2V LL34â??75V LL34 (1/2W glass), 3.3Vâ??56V LL41 (1W glass)
2.2Vâ??75V voltage regulator series
MM1Z2V0~MM1Z75
The models and voltage regulation values of commonly used Zener diodes are as follows:
Model number: 1N4728, 1N4729, 1N4730, 1N4732, 1N4733, 1N4734, 1N4735, 1N4744, 1N4750, 1N4751, 1N4761
Voltage regulation value: 3.3V, 3.6V, 3.9V, 4.7V, 5.1V, 5.6V, 6.2V, 15V, 27V, 30V, 75V
Zener diodes are used in the over-voltage protection circuits in TV sets, and in series-type voltage-stabilizing circuits, the series-type voltage-stabilizing circuit is used in many occasions, and more stable power can be obtained by connecting in series.
Zener diodes are often represented by "ZD" plus a number in the circuit.
Five parameters of Zener diode:
1. Stable voltage
With the change of operating temperature and current, the Zener diode needs to be stabilized.
2. Working current
The voltage stabilizing diode changes according to the operating current. In general, the operating current is large, and the effect of voltage stabilization will be better.
3. Stable current
The Zener diode can stabilize the voltage with the current when it is working.
4. Dissipated power
In actual use, the Zener diode consumption is not allowed to exceed the standard.
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A&s semiconductor co., ltd can supply many kinds of diodes:
Point contact diode
Battery charger diode
Voltage reference diode
Power zener diode
Electronic diode
Light diode
Flyback diode
Backward diode
Reverse bias diode
Trapatt diode
High current diode
High voltage diode
High power diode
High frequency diode
High speed diode
Gunn diode
Power diode
Power schottky diode
Resonant tunneling diode
