FDH27N50 is a 27A, 500V, 0.19 ohm, N-channel SMPS power MOSFET manufactured by Fairchild Semiconductor Corporation.
This document is a datasheet for the Fairchild Semiconductor FDH27N50, an N-Channel Switch Mode Power Supply (SMPS) Power MOSFET. The device is rated for 27A continuous drain current and 500V drain-to-source voltage, designed for applications such as single and two-switch forward converters, flyback converters, and buck converters.
The datasheet provides absolute maximum ratings, electrical characteristics, and typical performance graphs. Key features include a low gate charge for simple drive requirements, ruggedness against high dv/dt, and a junction temperature rating of 175°C. It also details thermal characteristics, avalanche energy, and body diode specifications.
| Drain to Source Voltage | 500 V |
|---|---|
| Continuous Drain Current (Tj = 25°C) | 27 A |
| Power Dissipation | 450 W |
| Operating and Storage Temperature | -55 to 175 °C |
| Package Symbol | JEDEC TO-247 |
The rated junction temperature is 175°C.
The thermal resistance junction to case is 0.33 °C/W.