MMBTA42LT1 – Robust, High-Voltage NPN Transistor

The MMBTA42LT1 from ON Semiconductor is a compact SOT-23 packaged NPN transistor designed for high-voltage amplifier and switching applications. It offers a collector-emitter voltage rating of 300 V and supports a continuous collector current of 500 mA. With Pb-free, RoHS-compliant construction and a low-profile footprint, the MMBTA42LT1 integrates easily into modern board designs. Its automotive-qualified variants meet AEC-Q101 standards for enhanced reliability. Whether you’re designing signal amplifiers, voltage monitoring circuits or high-voltage switching stages, the MMBTA42LT1 delivers consistent performance under stress. Choose this part today to ensure your next design performs reliably.