Description
IRF740 N-Channel Power MOSFET – 400V TO-220
The IRF740 N-Channel Power MOSFET is a high-voltage switching transistor designed for medium-to-high power electronic applications. With a drain-source voltage rating of 400V, this MOSFET is suitable for handling high-voltage loads while maintaining reliable switching performance. Housed in a robust TO-220 package, the IRF740 allows efficient heat dissipation when mounted on a heatsink. It is widely used in SMPS primary stages, inverters, electronic ballasts, power adapters, and industrial power supply circuits.
| Specification | Details |
|---|---|
| Part Number | IRF740 |
| Device Type | N-Channel Power MOSFET |
| Drain-Source Voltage (Vds) | 400V |
| Drain Current (Id) | 10A (Typical) |
| On-Resistance | Moderate RDS(on) |
| Package Type | TO-220 |
Applications
- SMPS and switching power supplies
- High-voltage DC switching
- Inverters and UPS systems
- Electronic ballasts and adapters
- Industrial power electronics
- Power factor correction stages
How to Use
- Mount the MOSFET on a heatsink using thermal compound.
- Use proper gate drive voltage for efficient switching.
- Ensure correct drain, source, and gate connections.
- Add snubber circuits if required for high-voltage spikes.
- Operate within rated voltage and thermal limits.
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