onsemi Small Signal PNP Transistor BC858ALT1G, 100 mA, 30 V, 3-Pin SOT-23, Surface Mount, AEC-Q101 BC858ALT1G

The onsemi BC858ALT1G is a high-quality small signal PNP transistor optimized for surface mount technology with a compact 3-pin SOT-23 package. It supports a maximum DC collector current of 100 mA and maximum collector emitter voltage of 30 V, making it ideal for low voltage amplification and switching applications in industrial, automotive, and electronic domains.

This transistor features a minimum DC current gain (hFE) of 90 and a maximum power dissipation of 225 mW, allowing efficient signal amplification while maintaining thermal stability. The device can reliably operate within a temperature range of -55°C to 150°C, supporting harsh environmental conditions often encountered in automotive and industrial use cases.

With a transition frequency (ft) of 100 MHz, the BC858ALT1G is suitable for high frequency switching and signal processing tasks. The automotive standard AEC-Q101 certification confirms its reliability in automotive electronic systems, assuring quality and durability.

The package dimensions are compact with a length of 3.04 mm, width of 2.64 mm, and height of 1.11 mm, enabling efficient PCB space optimization for dense circuit designs. Its surface mount mount type simplifies assembly and reduces manual handling.

The transistor polarity is PNP, commonly used in many analogue and digital circuit designs, offering design flexibility for complementary transistor pairs. It has a pin count of 3, corresponding to the collector, base, and emitter terminal configuration standard in discrete bipolar junction transistors.

Maximum DC collector current of 100 mA for moderate load requirements. Collector emitter voltage rated up to 30 V suitable for low voltage amplification. Compact SOT-23 surface mount package with dimensions 3.04 mm x 2.64 mm x 1.11 mm.

Minimum DC current gain (hFE) of 90 ensures reliable amplification performance. Maximum power dissipation of 225 mW supports small signal transistor applications. Broad operating temperature range from -55°C to 150°C for industrial and automotive environments.

Transition frequency up to 100 MHz supports high frequency switching and amplification. Automotive grade AEC-Q101 standard certification for stringent automotive requirements. 3-pin PNP configuration suitable for diverse electronic and automotive applications.

This transistor is well-suited for industries including automotive electronics, industrial equipment, consumer electronics, and telecommunications. It enables designers to implement small signal amplification, switching, and signal modulation with confidence in quality and performance.

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