Catalog > Semiconductors > Discrete Semiconductors > Transistors BD139 Bipolar Junction Transistor SI-N 80V 1.5A 12.5W 50MHz Part No: BD139 4.54 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 12.5A