The MPSA13 is a high-gain NPN Darlington transistor from JSCJ (JCET), available through Supreme Components International, an authorised distributor of electronic components. Housed in a TO-92 package, this transistor is designed for applications requiring significant current amplification. With a collector current rating of 500mA and a collector-emitter voltage of 30V, the MPSA13 is well-suited for use in amplifier stages, switching circuits, and other applications where a high current gain is necessary. Its Darlington configuration provides a high current gain, making it ideal for driving loads directly from logic-level signals. The MPSA13 offers reliable performance and is a popular choice for both hobbyists and professional engineers.