onsemi Digital Transistor 50 V NPN Surface Mount SOT-23 Package, 3-Pin MMUN2231LT1G

onsemi MMUN2231LT1G is a digital transistor integrated with bias resistors, eliminating the need for external base resistors. It operates as a 50 V NPN device in a compact surface mount SOT-23 package with three pins.

This transistor is engineered for direct driving from digital logic devices, offering simplified circuit design especially in switching and amplification applications requiring low power and high reliability.

Featuring a maximum collector emitter voltage (Vceo) of 50 V and a power dissipation of 400 mW, it is ideal for low power signal processing circuits. The device can operate safely at temperatures up to 150°C, making it suitable for demanding environments.

The physical dimensions are highly compact with a length of 3.04 mm, width of 1.4 mm, and height of 1.01 mm, enabling efficient surface mounting on printed circuit boards with minimal space usage.

The transistor’s integrated resistor structure supports biasing simplicity by enabling direct connection with digital signals without compromising performance. This digital transistor integrates one or two resistors internally for direct drive compatibility.

Its NPN configuration suits varied digital switching applications. Compact SOT-23 casing facilitates space-saving PCB layouts. Maximum power dissipation of 400 mW supports stable use in low power circuits. Operating temperature up to 150°C ensures durability in industrial and electronic control environments.

Common applications include digital switching, interface circuits, and electronic device drivers in industrial, telecommunications, and consumer electronics markets. Explore the onsemi range of Digital Transistors in the Discrete Semiconductors category for compatible devices and alternative specifications.