Fairchild FQPF5N80 800V N-Channel MOSFET Data Handbook
Summary
FQPF5N80 800V N-channel power MOSFET by Fairchild in TO-220F. 2.8A, 2.6 ohm Rds(on), 25nC gate charge, 11pF Crss, 100% avalanche tested, 590mJ avalanche energy. For power engineers designing switch-mode supplies and high-voltage converters.
Page 1 Text Content
September 2000
QFETTM
FQPF5N80 800V N-Channel MOSFET General Description Features These N-Channel enhancement mode power field effect 2.8A, 800V, RDS(on) = 2.6Ω @VGS = 10 V transistors are produced using Fairchild’s proprietary, Low gate charge ( typical 25 n C) planar stripe, DMOS technology. Low Crss ( typical 11 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 FQPF5N80 Units VDSS Drain-Source Voltage ID Drain Current - Continuous (TC = 25°C) 2.8
- Continuous (TC = 100°C) 1.77
IDM Drain Current - Pulsed (Note 1) 11.2 VGSS Gate-Source Voltage ± 30 EAS Single Pulsed Avalanche Energy (Note 2) m J IAR Avalanche Current (Note 1) 2.8 EAR Repetitive Avalanche Energy (Note 1) 4.7 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 0.38 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 2.66 °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 FQPF5N80 800V N-Channel MOSFET Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 8 |
| File Size | 664.41 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the maximum continuous drain current for the FQPF5N80?
2.8A at 25°C, derating to 1.77A at 100°C.
Is this MOSFET suitable for high-efficiency switch mode power supplies?
Yes, it's well-suited for high-efficiency switch mode power supplies.
What is the typical gate charge for fast switching?
The typical total gate charge (Qg) is 25 nC.
What is the absolute maximum drain-source voltage rating?
The absolute maximum drain-source voltage (VDSS) is 800V.