I am in the throes of Mini-A planning and am in a quandry concerning the output devices. Grey Rollins originally used irf644 which is a 250volt 14A device with a Ciss of 1300pf. I dont have any of those but I do have some FQP28N15 which are rated at150V 14A with a Cissof 1600pf max .All ratings are at Vds =25Volts.
I also have some BUZ71A which are 60Volt devices rated at 12Amps and have a Ciss of 900pf as well as some RFP12N10L. Ratings on these are 100Volts at12amps and a Ciss of 760pf.
On the spec sheets some are called avalanche devices and some are called enhanced . One can be triggered (the RFP) by a logic level voltage.
Moving through the Pass threads over a substantial period of time ,I've noted that IR devices seem to be almost a universal choice . Can anyone tell me why? Has anyone used any of the above devices or any devices of a different manufacture. ?
What would be your choice????
Thanks for your Help
I also have some BUZ71A which are 60Volt devices rated at 12Amps and have a Ciss of 900pf as well as some RFP12N10L. Ratings on these are 100Volts at12amps and a Ciss of 760pf.
On the spec sheets some are called avalanche devices and some are called enhanced . One can be triggered (the RFP) by a logic level voltage.
Moving through the Pass threads over a substantial period of time ,I've noted that IR devices seem to be almost a universal choice . Can anyone tell me why? Has anyone used any of the above devices or any devices of a different manufacture. ?
What would be your choice????
Thanks for your Help