Catalog > Semiconductors > Discrete Semiconductors > Transistors BF421 Bipolar Junction Transistor SI-P 300V 0.1A 0.83W Part No: BF421 0.79 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 PNP Material Silicon Power Dissipation 0.83A