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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.

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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)

Page 1 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 us...
Page 2 Elerical Characteristics TC = 25°C unless otherwise noted Symbol Parameter Test Conditions Min Typ Max Units Off Characteristics BVDSS Drain-Source Breakdown Voltage VGS = 0 V, ID = -250 µA -500 ∆BVDS...
Page 3 Typical Characteristics ap ac ita nc [p F] (o n) -I , D ra in ur re nt [A ra in -S ou rc n- es is ta nc Top : -15.0 V -10.0 V -8.0 V -7.0 V -6.5 V -6.0 V Bottom : -5.5 V ※ Notes : ※ Notes : 1. 250μs P...
Page 4 Typical Characteristics (Continued) -B SS , ( or al iz ed -I , D ra in ur re nt [A ra in -S ou rc Br ea kd ow Vo lta ge 0.9 ※ Notes : 1. V = 0 V 0.5 ※ Notes : 2. I = -250 μA 1. V GS = -10 V 2. I = -1....
Page 5 Gate Charge Test Circuit & Waveform Same Type as DUT Qgs Qgd Charge Resistive Switching Test Circuit & Waveforms VDS on off td(on) tr td(off) tf VDD Unclamped Inductive Switching Test Circuit ...
Page 6 Peak Diode Recovery dv/dt Test Circuit & Waveforms Driver RG Compliment of DUT (N-Channel) VDD dv/dt controlled by RG ISD controlled by pulse period Gate Pulse Width VGS D = Gate Pulse Period 10V ...
Page 7 Package Dimensions TO-220F MAX1.47 2.54TYP 2.54TYP [2.54 ±0.20] [2.54 ±0.20] ©2000 Fairchild Semiconductor International Rev. A, August 2000
Page 8 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ Hi S...

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.