Onsemi NPN Bipolar Transistor TO-92 Package 30V

Onsemi NPN Bipolar Transistor TO-92 30V is a general-purpose NPN transistor for switching and amplifier applications, supplied in a TO-92 through-hole package with a 30V rating.

Overview

Built with epitaxial silicon technology, this transistor provides consistent electrical characteristics for use across a wide range of electronic circuits. Its high DC current gain allows effective signal amplification with a minimal input current requirement, which suits sensitive audio and signal processing circuits. It is designed for low-power applications and is the complementary NPN type to the PNP BC558, which allows designers to build push-pull amplifier stages and other complementary circuitry.

Key Features

• Switching capability for driving relays, LEDs, and other low-current loads
• Small-signal amplification in audio pre-amplifiers, sensor interfaces, and RF stages up to its transition frequency
• TO-92 through-hole package for PCB mounting and ease of handling
• Complementary NPN type to the PNP BC558
• High DC current gain

Applications

Suitable for prototyping, hobbyist projects, educational electronics kits, power management modules, and industrial control boards where a general-purpose transistor is required. It can be used in control systems, timers, and logic interfaces.

Physical Details

The device measures 3.3 (width) x 1.5 (depth) x 4.3 (height) and weighs 1 gm. Its TO-92 package is designed for through-hole mounting.