BC857BSHX

Overview

The BC857BSHX is a PNP general-purpose bipolar junction transistor manufactured by Nexperia. It is housed in an SOT-363 (SC-88) surface-mount package with six pins, configured as two matched complementary transistors. The device supports a maximum collector current of 100 mA and a collector-emitter voltage of 45 V. Key electrical parameters include a DC current gain ranging from 200 to 475, a transition frequency of 100 MHz, and a total power dissipation of 300 mW. It operates within a temperature range of -65°C to +150°C.

Feature Summary

• Dual matched PNP configuration for balanced performance in differential circuits
• Ultra-small SC-88 package design for high-density board space efficiency
• High current gain and low saturation voltage for efficient switching applications

Applications

• General purpose switching and amplification
• Differential amplifier stages
• Driver circuits for logic interfaces

Procurement Notes

Verify the specific suffix 'SHX' against official Nexperia documentation to confirm tape-and-reel specifications and moisture sensitivity level. Ensure the ordering code matches the exact SOT-363 variant required for your PCB footprint. Cross-reference with authorized distributors to confirm availability and lead times for this specific packaging format.

Selection Notes

Select the BC857BSHX when a compact dual PNP solution is required for signal processing or switching tasks. Its matched pair characteristics make it suitable for applications demanding symmetry, such as differential pairs. Compare its 300 mW power rating and 45 V voltage limits against circuit requirements to ensure adequate headroom under operating conditions.

Part Context

This component belongs to the Nexperia BC857 series of small-signal PNP transistors. While standard single units like the BC857B exist in SOT-23 packages, the BS variant integrates two devices into the SOT-363 form factor. This series is widely used in consumer electronics and industrial control systems where space constraints and component count reduction are critical design factors.

Replacement Considerations

Direct substitutes include other SOT-363 matched PNP pairs such as the BCM857BS. Single-transistor equivalents like the BC857B can replace individual halves but will require additional board space. Verify pinout compatibility and thermal characteristics before substituting.