2SB857-C-BP

Single Bipolar Transistors Overview

The 2SB857-C-BP is a PNP silicon power transistor manufactured by Micro Commercial Components. It features a TO-220 package with a collector connected to the flange for heat dissipation. The device supports a maximum collector current of -4 A and a collector-emitter voltage of -50 V. Electrical characteristics include a minimum forward current transfer ratio (hFE) of 60 at -1 A, and a transition frequency of 15 MHz. The component operates within a junction temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• Designed for low-frequency power amplifier applications
• Utilizes triple diffused silicon technology for robust performance
• Features an epoxy body compliant with UL 94 V-0 flammability ratings

Single Bipolar Transistors Applications

• Low frequency power amplifiers
• Complementary pairs with 2SD1133 and 2SD1134 transistors

Single Bipolar Transistors Procurement Notes

Verify that the ordering suffix matches the required specifications. The '-BP' designation indicates bulk packaging containing 1000 pieces per box. Confirm RoHS compliance status based on the specific suffix requirements, as standard versions may differ from halogen-free or lead-free variants. Ensure sourcing through authorized distributors to guarantee genuine parts and traceability.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring a PNP power transistor with a -50V collector-emitter rating and up to -4A continuous current capability. The TO-220 package facilitates effective thermal management via the exposed collector flange. Verify that the hFE rank meets the gain requirements of the specific application circuit.

Single Bipolar Transistors Part Context

This part belongs to the 2SB857 series of PNP silicon power transistors produced by Micro Commercial Components. The series includes variants distinguished by suffixes indicating packaging type and environmental compliance. The device is intended for general-purpose power switching and amplification tasks in electronic equipment.

Single Bipolar Transistors Replacement Considerations

Consult official datasheets for direct substitutes. Potential replacements include the 2SB857-D or 2SB857-B, provided they meet the same electrical ratings and pinout configuration.