> I don't think that the problem is speed or current - the 
> problem is the voltage. A 1N4148 is rated with 100 Volts and 
> this could be less if you switch off a relay. 

How can you even approach 100V when switching a low-voltage relais? When
the relais is energised there is just the power supply voltage (5, 12,
24V), when the transistor switches of the diode will conduct so the
voltage is just 0.6V.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist