Full wave rectifier with UF4004 or HER205 regarding initial charge current and IFRM,IFSM

[maouna]

Hello.I am making a simple 0.5A /35V psu with a 24Volt AC transformer ,4 diodeS UF4002 and a 2200uF capacitor. I was considering the initial charge current and if the diodes are ok to handle it or should i move to something like HER205? Simulating with a 100 ohm load to get an idea of the current pulses in each diode i got the image below.So how i select a diode with respect to these simulation pulses?

UF4002 Datasheet says :
IFRM Repetitive peak forward current of 10A
IFSM Non-repetitive peak forward current of 30A

HER205 Datasheet says :
IFSM Non-repetitive peak forward current of 50A

 

[PRR]

initial charge current

This depends mostly on transformer parameters. What is the effective total source impedance of your transformer? A 24V 1A transformer may be 5 Ohms and peak current is likely to be 2A.

 

[maouna]

This depends mostly on transformer parameters. What is the effective total source impedance of your transformer? A 24V 1A transformer may be 5 Ohms and peak current is likely to be 2A.

I dont know that unfortunately.

 

[jan.didden]

But you measure the DC resistance, and use that for the LTspice secondary winding resistance.
It is unlikely that the initial current pulse will reach even 10A, let alone 30A.

Jan