Gerhard Fiedler wrote:

>>             +24
>>              |
>>          relay coil
>>              |
>>            drain
>>   +5  ---- gate      N Channel Hexfet
>>  control   source
>>              |
>>             gnd
>> 
>> But there is no sample part number or other details. 
> 
> No need for a Hexfet, unless I'm missing something. A standard MOSFET
> should do it, provided that its Idsmax is >80mA, and it can carry the
> 80mA with 5V Vgs and not get too hot. The reverse diode in a MOSFET
> typically can carry the same current as Idsmax, which is all you need.

I forgot: of course the relay coil would be connected to +5V and not +24V,
but you knew this (that's why I'm writing this msg :)

Gerhard

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