onsemi Small Signal NPN Bipolar Transistor 500mA 45V SOT-23 Surface Mount BC817-16LT1G

The onsemi BC817-16LT1G is a small signal NPN bipolar junction transistor designed for both amplification and switching circuits. Offering a maximum collector current of 500 mA and a collector-emitter voltage of up to 45 V, this device provides robust performance in general electronics, automotive, and industrial applications.

Housed in a compact SOT-23 surface mount package, the BC817-16LT1G is ideal for densely populated printed circuit boards where board space is at a premium. The surface mount configuration ensures easy assembly, reliability, and optimal thermal characteristics for power dissipation up to 300 mW.

This transistor features a minimum DC current gain (hFE) of 100, which supports efficient signal amplification, making it suitable for interfacing and general amplification stages in analog/digital circuits. Its maximum transition frequency of 100 MHz allows it to be used in high-speed switching and RF circuits. The single transistor configuration and NPN polarity provide great flexibility for use as an inverter, buffer, or signal amplifier.

The BC817-16LT1G operates reliably up to 150°C, enabling usage in elevated temperature environments found in automotive and industrial controls. It is qualified to AEC-Q101 automotive standards, ensuring performance and durability for rigorous industrial and transportation applications.

Precise mounting dimensions (length 3.04 mm, width 1.11 mm, height 2.64 mm) accommodate integration into various PCBs. It includes a maximum emitter-base voltage of 5 V, collector-base voltage up to 50 V, and a pin count of 3 for standard SOT-23 footprints.

This device is an excellent choice for professional engineers and designers in signal processing, sensor interfacing, relay driving, and low-level power switching where compact size, automotive qualification, and efficient performance are required.

Maximum collector current rating of 500 mA enables robust signal control. Collector-emitter voltage up to 45 V allows operation in moderate voltage circuits. Compact SOT-23 surface mount package optimizes PCB component density.

NPN polarity and single transistor configuration are versatile for switching and amplification. High DC current gain of minimum 100 supports efficient low-level signal processing. Maximum transition frequency of 100 MHz enables operation at high speeds.

Maximum power dissipation rated at 300 mW under recommended operating conditions. Automotive AEC-Q101 qualified for reliability in automotive and industrial systems. Supports operation up to 150°C for extended ambient temperature tolerance.

Explore the full range of small signal and power transistors in the Bipolar Transistors category on EnvMart for more solutions tailored to industrial, automotive, and electronics applications.