Fast recovery rectifier diode adopts high quality silicon material and bolt-on design. It is widely used in motor control and drive, induction heating, UPS power supply, welding equipment, uninterruptible current inverter and AC electromechanical control.
Features
- The fast rectifier diode features a diffusion junction structure, providing excellent electrical performance.
- It has a fully enclosed ceramic-metal flat plate structure, ensuring reliability and durability.
- This rectifier diode is capable of withstanding high surge currents, making it suitable for various harsh operating conditions.
- Silicon fast rectifier diode complies with the GB4939-1985 standard, ensuring product quality and safety.
- The dual-side cooling design effectively enhances heat dissipation, prolonging the diode's lifespan.
- In the off state, the diode exhibits strong capabilities for high on-state current thresholds.
Specification
| Model |
CCHN-ZK300A |
CCHN-ZK500A |
CCHN-ZK800A |
CCHN-ZK1000A |
| Average forward current |
300A |
500A |
800A |
1000A |
| Reverse repetitive peak voltage |
200~3000V |
200~3000V |
200~3000V |
200~3000V |
| Reverse repetitive peak current |
30mA |
40mA |
40mA |
50mA |
| Forward non repetitive surge current |
4.2KA |
7KA |
11KA |
18KA |
| Reverse recovery time |
3μs |
3μs |
3μs |
3μs |
| Reverse recovery charge |
100μC |
120μC |
130μC |
150μC |
| Forward average voltage/output current |
2.4V/900A |
2.4V/1800A |
2.6V/2400A |
2.6V/3000A |
| Thermal impedance (shell to radiator) |
0.065℃/W |
0.033℃/W |
0.033℃/W |
0.030℃/W |
| Maximum rated junction temperature |
150℃ |
150℃ |
150℃ |
150℃ |
| Mounting force |
5.3~10KN |
10~20KN |
10~20KN |
15~20KN |
| Storage temperature |
-40~160℃ |
-40~160℃ |
-40~160℃ |
-40~160℃ |
| Weight (approximately) |
50g |
110g |
270g |
470g |
Dimension (mm)

Tips: Difference between fast recovery rectifier diode and standard rectifier diode
Fast recovery rectifier diodes and standard rectifier diodes differ primarily in their recovery time and performance characteristics.
- Recovery Time: Fast recovery diodes have shorter reverse recovery times, which allows them to switch more quickly between conducting and blocking states. This makes them suitable for high-frequency applications.
- Switching Efficiency: Fast recovery diodes minimize power losses during switching, improving overall efficiency in power conversion circuits.
- Applications: Fast recovery diodes are often used in applications like switch- mode power supplies and inverters, while standard rectifier diodes are commonly found in low-frequency circuits, such as simple rectification tasks.
- Construction: Fast recovery diodes typically have designs optimized for rapid switching, whereas standard diodes may prioritize robustness over speed.