BC557BBK

$0.11

Description：TRANS PNP 45V 0.1A TO-92
Series：-

SKU:a2ce1c68e9e8 Category: Single Bipolar Transistors Brand: Diotec Semiconductor

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Product introduction

BC557BBK is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists Diotec Semiconductor. Its product description is TRANS PNP 45V 0.1A TO-92. Review the specifications below when checking this part for your BOM.

Single Bipolar Transistors specifications for BC557BBK

Description：TRANS PNP 45V 0.1A TO-92
Series：-
Mfr：Diotec Semiconductor
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)：15nA
DC Current Gain (hFE) (Min) @ Ic, Vce：200 @ 2mA, 5V
Power - Max：500 mW
Frequency - Transition：150MHz
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92
Grade：-
Qualification：-

Single Bipolar Transistors datasheet and documents for BC557BBK

BC557BBK

Single Bipolar Transistors Overview

The BC557BBK is a PNP silicon planar epitaxial transistor manufactured by Diotec Semiconductor. It operates in a TO-92BK through-hole package with a single configuration. Key electrical ratings include 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. The device supports a continuous collector current of 100 mA and dissipates up to 500 mW of power. It features a transition frequency (fT) of 150 MHz and a DC current gain (hFE) maximum of 200. Operating temperatures range from -55°C to +150°C.

Single Bipolar Transistors Feature Summary

PNP polarity with single configuration for signal amplification and switching
Through-hole mounting in a compact TO-92BK plastic package
High thermal stability supporting operation up to +150°C junction temperature

Single Bipolar Transistors Applications

General-purpose amplifier circuits
Electronic switching applications
Audio signal processing stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix BK against official Diotec documentation to confirm the exact packaging format and lead-free status. Ensure the procurement channel provides valid RoHS compliance data. Cross-reference the manufacturer part number with authorized distributor listings to confirm authenticity and traceability before finalizing orders.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with a 45 V collector-emitter rating is required. The 100 mA current capacity and 500 mW power dissipation suit low-power analog and digital switching tasks. Verify that the TO-92BK footprint matches the target PCB design constraints and that the hFE characteristics align with circuit gain requirements.

Single Bipolar Transistors Part Context

This device belongs to the BC557 series of small-signal transistors produced by Diotec Semiconductor. The series includes variants with different voltage and gain specifications. The BC557BBK specifically denotes the 45 V rating variant packaged in bulk within the TO-92BK form factor, designed for general electronic applications requiring reliable PNP switching or amplification.