Fairchild FDH27N50 Data Handbook
Summary
The FDH27N50 N-Channel Power MOSFET is a high-efficiency component designed specifically for advanced SMPS applications, including PFC Boost, Forward, 그리고 Buck converters. Featuring low gate charge and reduced $R_{DS(ON)}$, it optimizes performance in demanding power systems. This comprehensive datasheet is essential for engineers and designers, providing detailed electrical characteristics, thermal handling curves, switching parameters, and reliability data needed to build robust and high-performance power supplies.
Page 1 Text Content
查询FDH27N50供应商
August 2002
FDH27N50 27A, 500V, 0.19 Ohm, N-Channel SMPS Power MOSFET Applications Features
Low Gate Charge Qg results in Simple Drive Require-
Switch Mode Power Supplies(SMPS), such as
PFC Boost
Two-Switch Forward Converter Improved Gate, Avalanche and High Reapplied dv/dt Ruggedness
Single Switch Forward Converter
Reduced r DS(ON)
Flyback Converter
Buck Converter Reduced Miller Capacitance and Low Input Capacitance
High Speed Switching
Improved Switching Speed with Low EMI
175°C Rated Junction Temperature
Package Symbol
JEDEC TO-247
SOURCE DRAIN
DRAIN (FLANGE)
Absolute Maximum Ratings TC = 25o C unless otherwise noted Symbol Parameter Ratings Units
VDSS Drain to Source Voltage
VGS Gate to Source Voltage ±30
Drain Current
AContinuous (TC = 25o C, VGS = 10V)
Continuous (TC = 100o C, VGS = 10V) 19 Pulsed (Note 1) Power dissipation
Derate above 25o C W/o C
TJ, TSTG Operating and Storage Temperature -55 to 175
Soldering Temperature for 10 seconds 300 (1.6mm from case) Mounting Torque, 8-32 or M3 Screw 10ibf*in (1.1N*m)
Thermal Characteristics
RθJC Thermal Resistance Junction to Case 0.33
RθCS Thermal Resistance Case to Sink, Flat, Greased Surface 0.24 TYP
RθJA Thermal Resistance Junction to Ambient
©2002 Fairchild Semiconductor Corporation FDH27N50 Rev. A2
Page Summary Contents For Fairchild FDH27N50 Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 6 |
| File Size | 147.84 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What is the maximum Drain to Source Voltage rating for this MOSFET?
The absolute maximum rating for Drain to Source Voltage (VDSS) is 500 V.
What types of converters can use the FDH27N50 MOSFET?
It is suited for various Switch Mode Power Supplies (SMPS), including PFC Boost, Forward Converters, Flyback Converters, and Buck Converters.
How must I manage power dissipation if operating above 25°C?
The power dissipation must be derated at a rate of 3 W/°C when operating temperatures exceed 25°C.
What is the specified mounting torque recommendation for installation?
The recommended mounting torque is 10 lbf*in, which is equivalent to 1.1 N*m.
What are the key operational benefits of this MOSFET design?
It features low gate charge (Qg) and improved switching speed with low EMI.