Author Topic: Identify Fan connector  (Read 1185 times)

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Offline veedub565Topic starter

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Identify Fan connector
« on: March 25, 2021, 11:06:58 am »
Hi, looking for some help identifying a connector

I'm replacing the fan in a HP 6655A PSU, the OEM part came with the connector already attached. The OEM part is no longer orderable and I've chosen a suitable replacement. The replacement of course just comes with plain wires, no connector. I'm trying to work out what the connector is so I can buy one to fit it to the new fan.

If it helps I found a part number for the PCB header
HP 1251-4245 (NSN:5935010494128)

It looks like a Molex one, but trying to work out which type  :-//
 

Offline GlennSprigg

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Re: Identify Fan connector
« Reply #1 on: March 25, 2021, 11:34:50 am »
Can't you cut the connector off the old fan, and join the wires??
Diagonal of 1x1 square = Root-2. Ok.
Diagonal of 1x1x1 cube = Root-3 !!!  Beautiful !!
 

Offline veedub565Topic starter

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Re: Identify Fan connector
« Reply #2 on: March 25, 2021, 12:22:45 pm »
Yeah could do, it would be a neater job with a new connector though. The wires are quite different thicknesses too.
 

Offline amyk

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Re: Identify Fan connector
« Reply #3 on: March 25, 2021, 01:27:17 pm »
What's the pin spacing? That should narrow down the possibilities greatly.
 

Offline veedub565Topic starter

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Re: Identify Fan connector
« Reply #4 on: March 25, 2021, 01:31:08 pm »
**EDIT**

it's 3.96mm according to the info I found for the PCB header (HP 1251-4245)600V 7A
« Last Edit: March 25, 2021, 01:33:24 pm by veedub565 »
 

Offline veedub565Topic starter

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Re: Identify Fan connector
« Reply #5 on: March 25, 2021, 01:44:47 pm »
I might have found a suitable part

https://uk.farnell.com/amp-te-connectivity/640250-2/housing-0-156-2way/dp/1580074?MER=sy-me-pd-mi-alte

or

https://uk.farnell.com/molex/26-03-4020/connector-rcpt-2pos-1row-3-96mm/dp/1756831

The TE Connectivity one actually looks a closer match. the housing looks pretty similar, and the pitch is the same at 3.96mm/ The voltage and current rating aren't the same though, I mean i don't need 600V 7A for this application, it's just a question of if it's physically too small, or the pins are too small to fit the existing header on the board.
 

Offline ajb

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Re: Identify Fan connector
« Reply #6 on: March 25, 2021, 02:34:51 pm »
Yeah, Molex KK 396 or the SL-156/HSG were going to be my guess.  There may be similar/equivalent from other manufacturers as well.
 

Offline veedub565Topic starter

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Re: Identify Fan connector
« Reply #7 on: March 25, 2021, 08:24:47 pm »
Only problem now is buying the thing, the part is about £0.11 but the shipping  :-DD  the £0.11 part ends up costing upwards of £6  |O
 

Offline amyk

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Re: Identify Fan connector
« Reply #8 on: March 26, 2021, 01:42:24 pm »
It seems that "CH3.96" is the generic name for these. This style might have been around for longer than 0.1" connectors, I remember seeing them in '70s electronics.
 
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Offline veedub565Topic starter

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Re: Identify Fan connector
« Reply #9 on: March 28, 2021, 06:48:55 pm »
It seems that "CH3.96" is the generic name for these. This style might have been around for longer than 0.1" connectors, I remember seeing them in '70s electronics.

Thanks, that gives me something a bit more generic to look for, rather than a specific manufacturer name.
 


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