Transistor 2SC839 NPN, RF TO-92

Transistor 2SC839 NPN, RF TO-92

Transistors

Reference: TR2SC839

Part.No: 2SC839

€1.20

In Stock

Immediate Dispatch

The 2SC839 is a silicon NPN transistor in a TO-92 package, designed for RF small-signal applications such as AM/FM radio amplifier, oscillator, mixer and IF amplifier stages.

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Description
Product Details

2SC839 RF NPN Transistor - Built for AM/FM Radio Circuits

The 2SC839 is a silicon NPN transistor housed in a compact TO-92 package, originally developed by NEC for RF front-end stages in AM and FM receivers. It is commonly used as an RF amplifier, local oscillator, mixer or IF amplifier in classic radio and hobbyist RF circuits, offering good high-frequency gain in a low-cost through-hole part.

Functions & Applications

RF-Optimized Design: Tailored for AM/FM tuner and receiver front-end stages.
Multi-Role Versatility: Works as RF amplifier, mixer, local oscillator or IF amplifier in the same circuit family.
Compact TO-92 Package: Easy through-hole soldering for vintage radio repair and DIY RF projects.
Low-Power Signal Handling: Suited to small-signal stages rather than output/switching duty.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	30V
Collector-Base Voltage (Vcbo)	35V
Max Collector Current (Ic)	100mA
Collector Power Dissipation (Pc)	250mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the 2SC839 typically used for?
A: It is a small-signal RF NPN transistor used in AM/FM radio circuits as an RF amplifier, mixer, local oscillator or IF amplifier stage.

Q: Can the 2SC839 be used for general-purpose switching like a BC547?
A: It can handle basic low-current switching, but its low 250mW power dissipation and RF-optimized design make it best suited to small-signal RF work rather than general-purpose switching.

Notes

This is a legacy RF small-signal transistor (originally by NEC), popular in vintage AM/FM radio repair; stock may be limited as it is a mature/NOS-type part.

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-92

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