BSS138 MOSFET

The BSS138 N-Channel MOSFET is a high-performance semiconductor device manufactured by onsemi, utilizing proprietary high cell density DMOS technology. Designed specifically for logic-level interfacing, this transistor operates efficiently with low gate drive requirements, making it perfect for microcontroller-based projects and low-power switching circuits. With a drain-source voltage rating of 50V and a continuous drain current of 220mA, it offers reliable performance for various electronic applications. The device features low on-resistance (Rds On) of approximately 3.5 Ohms, minimizing power loss during operation. Its small SOT-23 surface-mount package allows for compact PCB designs, making it a popular choice for modern electronics. Common applications include level shifting, load switching, motor control in small devices, and signal amplification in audio circuits. This MOSFET is widely used by hobbyists and professionals alike for its reliability, availability, and excellent performance-to-cost ratio in low-voltage applications.