BC557B

$0.03

Description：TRANS PNP 45V 0.1A TO92
Series：-

SKU:a70610ff8ff0 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

BC557B is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is TRANS PNP 45V 0.1A TO92. Review the specifications below when checking this part for your BOM.

Single Bipolar Transistors specifications for BC557B

Description：TRANS PNP 45V 0.1A TO92
Series：-
Mfr：onsemi
Package：Bulk
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)：100nA
DC Current Gain (hFE) (Min) @ Ic, Vce：180 @ 2mA, 5V
Power - Max：625 mW
Frequency - Transition：320MHz
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 Long Body
Supplier Device Package：TO-92 (TO-226)

Single Bipolar Transistors datasheet and documents for BC557B

BC557B

Single Bipolar Transistors Overview

The BC557B is a PNP silicon epitaxial planar transistor manufactured by onsemi, designed for general-purpose amplification and switching applications. It features a collector-emitter voltage rating of -45 Vdc and a continuous collector current capability of -100 mAdc. The device operates within a junction temperature range of -55°C to +150°C and utilizes a TO-92 (Case 29) plastic package. Electrical characteristics include a minimum DC current gain (hFE) of 120 at -10 mAdc and -5.0 V, with a typical current-gain bandwidth product of 320 MHz.

Single Bipolar Transistors Feature Summary

PNP silicon epitaxial planar construction
General-purpose amplification and switching capabilities
Lead-free packaging options available

Single Bipolar Transistors Applications

General purpose switching circuits
Amplifier stages
Complementary NPN pair configurations

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact shipping configuration, such as bulk units or tape and reel quantities. Ensure the selected variant matches the required lead-free status if applicable. Cross-reference the part number with official distributor catalogs to confirm current availability and compliance with environmental directives like RoHS before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with a -45 V collector-emitter breakdown voltage and -100 mA continuous current rating is required. The BC557B offers a standardized hFE range suitable for general analog and digital switching tasks. Consider the thermal resistance values and safe operating area curves for high-power dissipation scenarios. Ensure the chosen package style aligns with the PCB layout constraints and assembly equipment specifications.

Single Bipolar Transistors Part Context

The BC557B belongs to the BC55x series of amplifier transistors produced by onsemi. This series includes complementary NPN devices such as the BC547. The BC557B specifically provides a -45 V rating, distinguishing it from the higher-voltage BC556 and lower-voltage BC558 variants. All members share similar physical dimensions and pinout configurations in the TO-92 package.