Quantcast
Channel: Raspberry Pi Forums
Viewing all articles
Browse latest Browse all 5847

Beginners • Re: Raspberry pi 4B PSU question

$
0
0
I've been shopping around for an alternative PSU. And I have picked this one:

IRM-30-5ST : https://www.digikey.com/en/products/det ... ND/7704677

This has a current rating of 6A and voltage rating of 5A. Will this work? I ask because the original PSU that came with Raspberry 4B is rated at 5.1V and 3.5A. Notice I'm off by 0.1V (2% deviation)

Besides the voltage rating mismatch, is there anything else I should be considering? For example: (a) PSU noise, (b) how quickly the PSU can ramp up the changing current demands (and other things i've probably missed) of the PI?
You have a typo, 5A should be 5V. Yes, it's nitpicking, but details are critical. If you're going to be doing this sort of thing regularly then double check everything.

The 5V rating is fine. Yes you need to be aware of noise and transient response, and should probably have fat wires from the PSU to the Pi to reduce voltage drop. You also need to be aware that one end of the PSU has mains voltage applied. It looks like the screw terminals are shrouded, but it's still dangerous if not in an enclosure.

I'm not totally sure why you'd want to incorporate this style of PSU, when an external USB-C PSU is easily and cheaply available, and much safer.

Statistics: Posted by ame — Mon Sep 02, 2024 2:26 am



Viewing all articles
Browse latest Browse all 5847

Trending Articles