Quick Answer: The NPN Transistor Unit carries a silicon NPN transistor on a polymer bench-top base marked with its circuit symbol. Colour-coded 4 mm terminals are fitted for the emitter, base and collector.
Last updated: October 2026
Key Features
Silicon NPN junction transistor
Polymer base with the circuit symbol shown on it
4 mm terminals, colour-coded for emitter, base and collector
Input protection on the unit
Technical Specifications
Specification
Value
Transistor
Silicon NPN junction
Base
Polymer, with schematic marking
Terminals
4 mm, colour-coded E, B, C
Protection
Input protection
About This Product
The unit lets students wire a transistor into a circuit without soldering. It is used to plot input and output characteristics in common-emitter and common-base configurations and to find current gain.
Frequently Asked Questions
How are the transistor leads connected on the NPN Transistor Unit?
The emitter, base and collector are brought out to colour-coded 4 mm terminals on the base.
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