What diode is SS34?
In the field of electronic components, diodes are one of the basic and important components. As a common diode model, SS34 is widely used in various circuits. This article will introduce in detail the characteristics, parameters, application scenarios and comparison of SS34 diodes with other diodes to help readers fully understand this component.
1. Basic characteristics of SS34 diodes

SS34 is aSchottky diode, known for its low forward voltage drop and high switching speed. The following are its main features:
| Features | parameters |
|---|---|
| Type | Schottky diode |
| Maximum reverse voltage | 40V |
| Maximum forward current | 3A |
| Forward voltage drop | 0.5V (typ.) |
| switching speed | Extremely fast (nanosecond level) |
2. Application scenarios of SS34 diodes
SS34 diodes are widely used in the following fields due to their excellent performance:
1.power circuit: Used for rectification and prevention of reverse current to improve power efficiency.
2.switching power supply: Take advantage of its high switching speed to reduce energy loss.
3.solar panel: Prevent reverse flow of current into the solar cell and protect the system.
4.LED driver circuit: Acts as a protection diode to prevent reverse voltage from damaging the LED.
3. Comparison between SS34 and other diodes
In order to understand the advantages of SS34 more clearly, the following is a comparison between SS34 and ordinary rectifier diode 1N4007:
| parameters | SS34 (Schottky) | 1N4007 (ordinary rectifier) |
|---|---|---|
| Maximum reverse voltage | 40V | 1000V |
| Maximum forward current | 3A | 1A |
| Forward voltage drop | 0.5V | 1.1V |
| switching speed | Nanosecond level | Microsecond level |
As can be seen from the table, SS34 isForward voltage dropandswitching speedIt has obvious advantages and is suitable for high-frequency and high-efficiency circuits; while 1N4007 has a higher reverse voltage and is suitable for high-voltage applications.
4. How to choose SS34 diode
When selecting SS34 diodes, consider the following factors:
1.circuit voltage: Make sure the reverse voltage does not exceed 40V.
2.Current demand: The maximum forward current is 3A, please leave some margin.
3.temperature range: The operating temperature of SS34 is usually -65°C to +125°C, which needs to comply with the actual environment.
4.Package type: The common package of SS34 is DO-214AC (SMA), which needs to match the circuit board design.
5. Alternative models of SS34 diodes
If SS34 is not available, the following alternative models may be considered:
| Model | Type | Maximum reverse voltage | Maximum forward current |
|---|---|---|---|
| SS14 | Schottky | 40V | 1A |
| SS24 | Schottky | 40V | 2A |
| 1N5819 | Schottky | 40V | 1A |
6. Summary
The SS34 is a high-performance Schottky diode with low forward voltage drop, high switching speed and moderate current-voltage parameters, making it ideal for high-frequency, high-efficiency circuit applications. Through the introduction of this article, I hope readers can better understand the characteristics of SS34 and choose it reasonably in actual projects.
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