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FZT789ATA

DIOFZT789ATA

Diodes Incorporated
Bipolar (BJT) Transistor PNP 25 V 3 A 100MHz 2 W Surface Mount SOT-223-3
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Overview

The FZT789ATA is a high-performance PNP bipolar junction transistor designed for high current switching and amplification in a compact SOT-223 package. It features an exceptionally high continuous collector current rating of 3 A and a low saturation voltage, making it suitable for power management tasks where board space is limited.

Why Choose This Part

The FZT789ATA offers a high minimum DC current gain of 300 at 10mA, ensuring efficient driving with minimal base current. Its 2 W power dissipation rating in a surface-mount package, combined with a low 500mV maximum saturation voltage at 3A, provides excellent thermal efficiency for power-dense designs.

Applications

Gate Driving
High-speed switching for power MOSFET and IGBT gate drive circuits due to its 100MHz transition frequency.
Battery Powered Circuits
Efficient power switching in portable devices where low Vce(sat) is critical for minimizing heat and maximizing battery life.
Fast-Charge Converters
Handles high current loads in charging circuits requiring up to 3 A of continuous collector current.
Low-Loss Power Switching
Acts as a primary switch in DC-DC converters and linear regulators needing high gain and low voltage drops.

Key Specifications

Power - Max 2 W
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Transistor Type PNP
Operating Temperature -55degC ~ 150degC (TJ)
Frequency - Transition 100MHz
Supplier Device Package SOT-223-3
Vce Saturation (Max) @ Ib, Ic 500mV @ 100mA, 3A
Current - Collector (Ic) (Max) 3 A
Current - Collector Cutoff (Max) 100nA
DC Current Gain (hFE) (Min) @ Ic, Vce 300 @ 10mA, 2V
Voltage - Collector Emitter Breakdown (Max) 25 V

Getting Started

When integrating this PNP transistor, ensure sufficient copper area is provided around the SOT-223 collector tab for optimal thermal dissipation. For automotive designs requiring higher reliability, the AEC-Q101 qualified FZT789AQTA variant should be utilized.