FZT789ATA

The FZT789ATA is a 25V PNP medium power transistor manufactured by Diodes Incorporated. It offers a continuous collector current rating of -3A and a peak pulse current of -6A, making it suitable for medium power switching and driver applications. The device features a low saturation voltage of -250mV typical at -1A and a low equivalent on-resistance of 93mΩ. The transistor provides a minimum DC current gain of 300 at 10mA collector current, ensuring high gain hold-up.

Packaged in the industry-standard SOT223-3 surface mount package, the FZT789ATA is designed for automated assembly. The package is molded with a green plastic compound rated UL 94V-0 and has matte tin plated leads for reliable solderability. It is rated for operation over a junction temperature range of -55°C to +150°C, with a maximum power dissipation of 3.0W (depending on mounting conditions). The device is Moisture Sensitivity Level 1 per J-STD-020 and is RoHS compliant with a lead-free finish.

This transistor is AEC-Q101 qualified, making it suitable for automotive applications. Its complementary NPN type is the FZT689B. Typical applications include power MOSFET and IGBT gate driving, battery powered circuits, fast charge converters, and low loss power switching. The combination of high current capability, low saturation voltage, and high gain makes the FZT789ATA a versatile choice for medium power switching and amplification tasks.