Transistor BF252 NPN, 25mA TO-72

Transistor BF252 NPN, 25mA TO-72

Transistors

Reference: TRBF252

Part.No: BF252

€1.40

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The BF252 is a NPN silicon RF transistor in a metal TO-72 package. Designed for the oscillator, mixer and IF amplification stages of radio receivers and other high-frequency small-signal circuits.

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Description
Product Details

BF252 RF Transistor - Built for Oscillator & Mixer Stages

The BF252 is an NPN silicon transistor optimized for radio-frequency work, housed in a rugged TO-72 metal can that helps shield sensitive high-frequency stages. It is a classic choice for the front-end and IF stages of AM/FM and communications receivers, where its transition frequency and low collector capacitance keep signal loss to a minimum.

Functions & Applications

RF-Optimized Design: Low collector capacitance (Cc ≈ 0.7pF) keeps high-frequency signal loss to a minimum.
100MHz Transition Frequency: Suitable for HF/VHF oscillator, mixer and IF amplifier stages.
Metal TO-72 Package: Provides natural shielding against RF interference in sensitive front-end circuits.
Classic Radio Receiver Part: Direct silicon successor to earlier germanium RF transistors in AM/FM tuners.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Collector-Emitter Voltage (Vceo)	30V
Collector-Base Voltage (Vcbo)	40V
Max Collector Current (Ic)	25mA
Power Dissipation (Pc)	150mW
Transition Frequency (ft)	100MHz
DC Current Gain (hFE, min)	30

Frequently Asked Questions

Q: What is the BF252 typically used for?
A: It is used in the RF oscillator, mixer and IF amplifier stages of radio receivers, where its 100MHz transition frequency and low collector capacitance help preserve weak high-frequency signals.

Q: Is the BF252 the same as the BF251 or BF253?
A: They are part of the same RF transistor family with similar TO-72 construction, but voltage, current and power ratings differ slightly between them, so they are not always drop-in interchangeable.

Notes

Legacy RF transistor mainly stocked for repair/restoration of vintage radio receivers and communications equipment.

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: NPN
Transistor Case Style: TO-72
TO-92

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