BC857B/DG/B4R

Description：TRANS PNP 45V 0.1A TO-236AB
Series：-

SKU:be4d73366568 Category: Single Bipolar Transistors Brand: Nexperia USA Inc.

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Product introduction

Product Detailed Parameters

Description：TRANS PNP 45V 0.1A TO-236AB
Series：-
Mfr：Nexperia USA Inc.
Package：Tape & Reel (TR)
Transistor Type：PNP
Current - Collector (Ic) (Max)：100 mA
Voltage - Collector Emitter Breakdown (Max)：45 V
Vce Saturation (Max) @ Ib, Ic：650mV @ 5mA, 100mA
Current - Collector Cutoff (Max)：15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：125 @ 2mA, 5V
Power - Max：250 mW
Frequency - Transition：100MHz
Operating Temperature：150°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：TO-236AB
Grade：-
Qualification：-

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BC857B/DG/B4R

Overview

The Nexperia BC857B/DG/B4R is a PNP general-purpose bipolar junction transistor (BJT) housed in an SOT-363 (SC-88) surface-mount package. It features a dual common-emitter configuration with two independent PNP transistors sharing a single base terminal. Key electrical parameters include a maximum collector current of 100 mA, a collector-emitter voltage of 45 V, and a collector-base voltage of 50 V. The device operates within a temperature range of -55°C to +150°C, with a total power dissipation of 225 mW.

Feature Summary

Dual PNP structure with a shared base terminal for compact circuit design
Ultra-small leadless plastic surface-mount package minimizing board space
High DC current gain ensuring reliable switching and amplification performance

Applications

General-purpose small signal switching applications
Low and medium frequency AC amplification circuits
Mobile phone and portable equipment internal logic interfaces

Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm pinout compatibility and hFE binning. Ensure the ordering code matches the required tape-and-reel quantity or cut-tape format. Confirm RoHS compliance status and AEC-Q101 qualification if automotive reliability is required for the final assembly.

Selection Notes

Select this component when a dual PNP solution with a shared base is needed to reduce footprint. Compare total power dissipation limits against thermal constraints. Verify that the 45V breakdown voltage meets the circuit requirements. Consider the SOT-363 package dimensions for PCB layout optimization compared to discrete single transistors.

Part Context

This part belongs to the BC857 family of general-purpose NPN/PNP complementary pairs. The BC857B variant specifically denotes a standard DC current gain bin. The DG/B4R suffix indicates the specific packaging and reel configuration used by Nexperia for distribution through authorized channels.