Catalog > Semiconductors > Discrete Semiconductors > Transistors IRF640 Field Effect Transistor N-FET 200V 18A 125W 0.18R Part No: IRF640 13.51 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 N-Channel Material Silicon Power Dissipation 125A