Catalog > Semiconductors > Discrete Semiconductors > Transistors MPSA44 Bipolar Junction Transistor SI-N 500V 0.3A 625mW 20MHz Part No: MPSA44 1.73 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Polarity NPN Material Silicon Power Dissipation 0.625A