BC857A_R1_00001

Overview

The BC857A_R1_00001 is a PNP general-purpose bipolar junction transistor manufactured by Panjit International Inc. It utilizes silicon technology and is housed in an SOT-23-3 surface-mount package. The device features a maximum collector-emitter voltage (VCEO) of 45 V, a collector-base voltage (VCBO) of 50 V, and an emitter-base voltage (VEBO) of 5 V. It supports a continuous collector current of -100 mA with a power dissipation rating of 330 mW. The component operates within a temperature range of -55°C to +150°C and offers a DC current gain (hFE) ranging from 160 to 320.

Feature Summary

• PNP polarity configuration for general-purpose switching and amplification applications
• Silicon-based construction ensuring stable performance across wide temperature ranges
• SOT-23-3 surface-mount packaging optimized for automated assembly processes

Applications

• General-purpose signal amplification circuits
• Low-power switching applications
• Audio pre-amplifier stages

Procurement Notes

Verify the specific hFE binning requirements against the manufacturer's datasheet, as the 'A' suffix typically denotes a specific gain range distinct from other variants. Confirm that the SOT-23-3 footprint matches the target PCB layout. Ensure compliance with RoHS directives if required by the end application standards.

Selection Notes

Select this component when a PNP transistor with moderate voltage ratings and low current capabilities is required. The specified hFE range suits standard amplification tasks. Compare against alternative BJT packages if higher thermal dissipation or different pin configurations are necessary for the design constraints.

Part Context

This part belongs to Panjit's general-purpose transistor lineup, designed for cost-effective consumer electronics and industrial control systems. It serves as a fundamental discrete semiconductor component for basic circuit logic and analog signal processing tasks requiring reliable PNP operation.