Fairchild FQPF5N90 Technical Specifications Manual
Summary
The FQPF5N90 is a high-performance N-Channel MOSFET designed for demanding applications requiring superior switching efficiency and durability. Rated for 900V and low on-state resistance, this transistor excels in handling fast transients and high energy pulses. This comprehensive manual provides detailed electrical characteristics, thermal management guidelines, absolute maximum ratings, and performance graphs—making it the essential reference tool for engineers designing highly efficient switch mode power supplies (SMPS).
Page 1 Text Content
September 2000
QFETTM
FQPF5N90 900V N-Channel MOSFET General Description Features These N-Channel enhancement mode power field effect 3.0A, 900V, RDS(on) = 2.3 Ω @ VGS = 10 V transistors are produced using Fairchild’s proprietary, Low gate charge ( typical 31 n C) planar stripe, DMOS technology. Low Crss ( typical 13 p F) This advanced technology has been especially tailored to Fast switching minimize on-state resistance, provide superior switching 100% avalanche tested performance, and withstand high energy pulse in the
Improved dv/dt capability
avalanche and commutation mode. These devices are well suited for high efficiency switch mode power supply.
SD TO-220F
FQPF Series
Absolute Maximum Ratings TC = 25°C unless otherwise noted Symbol Parameter FQPF5N90 Units VDSS Drain-Source Voltage ID Drain Current - Continuous (TC = 25°C) 3.0
- Continuous (TC = 100°C) 1.9
IDM Drain Current - Pulsed (Note 1) VGSS Gate-Source Voltage ± 30 EAS Single Pulsed Avalanche Energy (Note 2) m J IAR Avalanche Current (Note 1) 3.0 EAR Repetitive Avalanche Energy (Note 1) 5.1 m J
dv/dt Peak Diode Recovery dv/dt (Note 3) 4.0 V/ns
PD Power Dissipation (TC = 25°C)
- Derate above 25°C 0.41 W/°C
TJ, TSTG Operating and Storage Temperature Range -55 to +150 °C
Maximum lead temperature for soldering purposes,
TL °C
1/8" from case for 5 seconds
Thermal Characteristics Symbol Parameter Typ Max Units RθJC Thermal Resistance, Junction-to-Case 2.45 °C/W RθJA Thermal Resistance, Junction-to-Ambient 62.5 °C/W
©2000 Fairchild Semiconductor International Rev. A, September 2000
Page Summary Contents For Fairchild FQPF5N90 Technical Specifications Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 8 |
| File Size | 680.44 KB |
| Published | June 20, 2026 |
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