onsemi Transistor NPN 300 mA 400 V 4-Pin SOT-223 Surface Mount FJT44KTF

onsemi FJT44KTF is a high voltage NPN bipolar transistor engineered for use in electronic and power applications requiring up to 300 mA collector current and maximum 400 V collector-emitter voltage. Its surface mount 4-pin SOT-223 package allows efficient PCB mounting with minimal space usage. With a power dissipation rating of 2 W and a high maximum operating temperature of 150°C, it delivers reliable performance under demanding industrial conditions.

This transistor features a minimum DC current gain (hFE) of 40 facilitating efficient signal amplification and switching. The device supports a maximum collector base voltage of 500 V and an emitter base voltage of 6 V, making it ideal for high-voltage switching circuits and power amplification.

Its compact physical dimensions (6.7 mm length x 7.5 mm width x 1.8 mm height) and surface mount technology boost design flexibility in electronics manufacturing. The single transistor configuration is suitable for a broad range of industrial, laboratory, consumer electronics, and manufacturing circuit applications.

Applications include power management, signal amplification, switching regulators, and driver circuits in industrial automation, HVAC control systems, and electronic instrumentation.

This transistor offers a maximum power dissipation of 2 W for reliable thermal performance. It has a minimum DC current gain (hFE) of 40 ensuring efficient amplification. Maximum operating temperature is rated up to 150°C for industrial application durability.

The device has a maximum collector base voltage (VCBO) of 500 V and emitter base voltage (VEBO) of 6 V suitable for high-voltage switching. Compact dimensions of 6.7 mm length, 7.5 mm width, and 1.8 mm height. Designed as a single transistor configuration for various electronic circuit uses.

Surface mount package type SOT-223 supports automated assembly and reduced PCB space footprint. Explore a wide range of Bipolar Transistors at EnvMart for industrial, laboratory, and commercial electronics design requirements.