BC557_D11Z

Single Bipolar Transistors Overview

The BC557_D11Z is a PNP bipolar junction transistor manufactured by onsemi. It features a maximum collector-emitter voltage of 45 V and a continuous collector current of 100 mA. The device has a power dissipation rating of 500 mW and a transition frequency of 150 MHz. DC current gain (hFE) is specified at a minimum of 110 when measured at 2 mA and 5 V. The saturation voltage is limited to 650 mV at 5 mA base current and 100 mA collector current. Collector cutoff current is 15 nA. It operates within a junction temperature range up to 150°C and uses a TO-92-3 through-hole package.

Single Bipolar Transistors Feature Summary

• PNP single transistor configuration for general-purpose signal amplification
• High DC current gain ensuring effective switching and amplification performance
• Robust thermal stability with high maximum junction temperature rating

Single Bipolar Transistors Applications

• General purpose small signal amplification circuits
• Switching applications in low-power electronic devices
• Audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific suffix D11Z against the official onsemi datasheet to confirm pinout and marking consistency. Confirm RoHS compliance status as manufacturing processes may evolve. Check component availability status, as older BJT series may face obsolescence or supply constraints. Ensure the supplier provides valid traceability documentation matching the manufacturer's specifications.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring a standard PNP transistor with moderate voltage handling and current capacity. The TO-92 package suits prototyping and through-hole PCB layouts. Compare hFE ranges if precise gain control is necessary. Consider thermal management requirements given the 500 mW power limit. Verify that the 45 V breakdown voltage meets the circuit's peak operating conditions.

Single Bipolar Transistors Part Context

This part belongs to the BC557 family of PNP transistors, widely used in consumer electronics and industrial controls. The BC557 series offers complementary pairing with NPN types like the BC547. The D11Z suffix typically denotes specific packaging or tape-and-reel variants, though verification is required. It serves as a fundamental discrete semiconductor component for analog signal processing.

Single Bipolar Transistors FAQ

What is the maximum collector-emitter voltage for the BC557_D11Z?

The maximum collector-emitter voltage is 45 V.

Is the BC557_D11Z available in a surface-mount package?

No, it is specified for through-hole installation in a TO-92-3 package.

What is the minimum DC current gain at 2mA and 5V?

The minimum DC current gain is 110 under these test conditions.