2n6794 irff420.pdf datasheet:

PD - 90429CIRFF420REPETITIVE AVALANCHE AND dv/dt RATED JANTX2N6794HEXFETTRANSISTORS JANTXV2N6794THRU-HOLE (TO-205AF) REF:MIL-PRF-19500/555500V, N-CHANNELProduct Summary Part Number BVDSS RDS(on) IDIRFF420 500V 3.0 1.5AThe HEXFETtechnology is the key to InternationalRectifiers advanced line of power MOSFET transistors.The efficient geometry and unique processing of this latestState of the Art design achieves: very low on-state resis-TO-39tance combined with high transconductance.The HEXFET transistors also feature all of the wellestablished advantages of MOSFETs such as volt-Features:age control, very fast switching, ease of parelleling Repetitive Avalanche Ratingsand temperature stability of the electrical parameters. Dynamic dv/dt RatingThey are well suited for applications such as switch- Hermetically Sealeding power