onsemi Small Signal NPN Transistor 3 A 25 V Surface Mount SOT-223 Package FZT649

The onsemi FZT649 is a small signal NPN bipolar transistor designed to handle up to 3 A of collector current and a maximum collector-emitter voltage of 25 V. Packaged in a SOT-223 (SC-73) surface mount package, this transistor provides efficient thermal management and compact footprint ideal for modern electronics.

Boasting a minimum DC current gain (hFE) of 70 and a maximum transition frequency (ft) of 150 MHz, the FZT649 is well-suited for switching and amplification tasks across a range of industrial and commercial electronic circuits. Its operating temperature range from -55°C to 150°C ensures performance reliability under demanding environmental conditions.

This transistor’s maximum power dissipation is rated at 2 watts, allowing for safe operation within power-regulated designs. The NPN transistor features three pins arranged to easily interface with conventional PCB layouts.

Typical applications of the onsemi FZT649 include general purpose medium power amplification in industrial control circuits, power supply regulation, driver stages, and switching in telecommunication devices. Its robust specifications make it suitable for harsh operating environments found in manufacturing, industrial automation, and electronic instrumentation.

Maximum DC collector current of 3 A for reliable medium power handling. Maximum collector-emitter voltage rating of 25 V ensures stable switching performance. 3-pin SOT-223 surface mount package for compact design and efficient heat dissipation.

Broad operating temperature range from -55°C to 150°C suitable for industrial conditions. High current gain with minimum hFE of 70 for amplifier efficiency. Maximum switching speed with ft up to 150 MHz supports high-frequency circuits.

Maximum power dissipation of 2 W to ensure thermal stability. Compact package dimensions of 6.7 mm length, 7.3 mm width, and 1.8 mm height. Ideal for industrial, electronic manufacturing, and telecommunication applications.

Explore more components within the Bipolar Transistors category at EnvMart for your electronic design and manufacturing projects.