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This document is a datasheet for the Fairchild FQA44N30, a 300V N-Channel enhancement mode power field effect transistor. Produced using Fairchild's proprietary planar stripe, DMOS technology, the device is designed to minimize on-state resistance and provide superior switching performance for high efficiency switching DC/DC converters and switch mode power supplies.
The datasheet provides absolute maximum ratings, electrical characteristics, and typical characteristics including on-resistance, capacitance, and switching times. It also includes test circuit diagrams for gate charge, resistive switching, and unclamped inductive switching, along with mechanical dimensions for the TO-3PN package.
| Drain-Source Voltage | 300 V |
|---|---|
| Continuous Drain Current (Tc = 25°C) | 43.5 A |
| On-Resistance | 0.0692 Ohms |
| Operating Temperature Range | -55 to +150 °C |
The maximum continuous drain current at 25°C is 43.5 A.
The typical on-state resistance is 0.0692 Ohms at Vgs = 10 V.