Fairchild FQPF3P50 500V P-Channel MOSFET Specification Sheet (1)(1)
Summary
Discover the FQPF3P50, a high-performance P-Channel power field effect transistor optimized for advanced switching applications. Engineered with proprietary DMOS technology, this MOSFET delivers superior performance through low gate charge, minimal on-state resistance, and fast switching capabilities. Ideal for electronic lamp ballasts and associated half-bridge circuits requiring reliable handling of high energy pulses. This comprehensive manual provides electrical characteristics, thermal data, and operational graphs necessary to integrate the device seamlessly into demanding power conversion designs.
Page 1 Text Content
August 2000
QFETTM
FQPF3P50 500V P-Channel MOSFET General Description Features These P-Channel enhancement mode power field effect -1.9A, -500V, RDS(on) = 4.9Ω @VGS = -10 V transistors are produced using Fairchild’s proprietary, Low gate charge ( typical 18 n C) planar stripe, DMOS technology. Low Crss ( typical 9.5 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 electronic lamp ballast based on complimentary half bridge.
SD TO-220F
FQPF Series
Absolute Maximum Ratings TC = 25°C unless otherwise noted Symbol Parameter FQPF3P50 Units VDSS Drain-Source Voltage -500 ID Drain Current - Continuous (TC = 25°C) -1.9
- Continuous (TC = 100°C) -1.2
IDM Drain Current - Pulsed (Note 1) -7.6 VGSS Gate-Source Voltage ± 30 EAS Single Pulsed Avalanche Energy (Note 2) m J IAR Avalanche Current (Note 1) -1.9 EAR Repetitive Avalanche Energy (Note 1) 3.9 m J
dv/dt Peak Diode Recovery dv/dt (Note 3) -4.5 V/ns
PD Power Dissipation (TC = 25°C)
- Derate above 25°C 0.31 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 3.2 °C/W RθJA Thermal Resistance, Junction-to-Ambient 62.5 °C/W
©2000 Fairchild Semiconductor International Rev. A, August 2000
Page Summary Contents For Fairchild FQPF3P50 500V P-Channel MOSFET Specification Sheet (1)(1)
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 8 |
| File Size | 636.10 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What type of switch is the FQPF3P50?
It is an enhancement mode P-Channel MOSFET.
What are the key electrical specifications (T=25°C)?
Max Drain Current (Continuous) is -1.9 A, and Max Gate-Source Voltage is ± 30 V.
What temperature range can this device operate?
The operating temperature range is from -55 to +150 °C.
When should the specified power dissipation derating be applied?
Derating of current is required when operating above 25°C.