Transistor BC154 PNP 40 V 100 mA 200 mW TO-106

Transistor BC154 PNP, 0.1A TO-106

Transistors

Reference: TRBC154

Part.No: BC154

€0.80

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The BC154 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a TO-106 plastic package. Suited for small-signal amplification and low-power switching in audio and general electronics circuits.

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Description
Product Details

BC154 PNP Transistor - Small Signal Amplification & Switching

The BC154 is a PNP small-signal transistor housed in a TO-106 plastic package, originally popular in audio preamplifier and low-power switching stages. It offers a reliable, low-cost option for classic circuit designs and repairs of vintage equipment that call for this specific part.

Functions & Applications

PNP Polarity: Complements NPN designs in push-pull and biasing configurations.
TO-106 Package: Compact plastic through-hole case, commonly used in vintage audio and signal circuits.
Low-Power Switching: Handles up to 100mA, suitable for driving small loads, relays or indicator circuits.
Signal Amplification: Good fit for small-signal preamp and general-purpose amplifier stages.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-106
Collector-Emitter Voltage (Vceo)	40V
Max Collector Current (Ic)	100mA
Power Dissipation (Pd)	200mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What type of applications is the BC154 best suited for?
A: The BC154 is a low-power PNP transistor ideal for small-signal amplification and light switching duties, such as preamp stages, indicator drivers or low-current relay control, given its 40V/100mA/200mW rating.

Q: Is the BC154 still commonly used in new designs?
A: It's mostly found in legacy repairs and vintage audio equipment; for new designs, a modern equivalent PNP transistor with similar Vceo/Ic ratings in a TO-92 package is often used instead.

Notes

This is a legacy/vintage-era part (TO-106 package), mainly stocked for repair of older audio and electronic equipment rather than new designs.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: PNP
Transistor Case Style: TO-106

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