G?day I am refurbishing the power supply board in my Alpha 91b and am going to replace the KD202P diodes which make up the bridge with 6A10 diodes (1000V 6A and only A$1.95 each). The original bridge
Steve: The 6A10 is an excellent choice. I have been ordering components from Banggood and have yet to have a problem. I just received the following diodes, and have not put them in service yet. 2 A,
-- ORIGINAL MESSAGE --(may be snipped) REPLY: I agree with Jim but I would qualify that a little. The 6A10s must be identical, i.e. from the same manufacturer and same batch. Do not try to mix and ma
I've not used equalizing resistors for years. I use 1N5408s and can't remember having a failure. 73 Jim W7RY G?day I am refurbishing the power supply board in my Alpha 91b and am going to replace the
-- ORIGINAL MESSAGE --(may be snipped) REPLY: As I understand it, all diodes have an avalanche (zener) voltage. The question is whether it can withstand the power dissipated at that voltage and rever
Author: Gerald Williamson via Amps <amps@contesting.com>
Date: Wed, 3 Feb 2016 12:15:45 -0500
Avalanche diodes do not need to be identical. The diodes are in series so the reverse leakage current is the same in all diodes. When a diode reaches the avalanche voltage the voltage drop stabilizes
Every modern rectifier diode *is* an avalanche diode, meaning that reverse breakdown (if it happens) is in a low-current, non-destructive avalanche mode. That had already been true for some time befo