Catalog > Semiconductors > Discrete Semiconductors > Transistors 2SD837 Bipolar Junction Transistor Darlington N-DARL 60V 4A 40W Part No: 2SD837 4.27 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 40A