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Which “Molex connector” are you referring to? The ATX spec specifically specifies Molex Mini-Fit part numbers, and claims this is for compatibility with PCIe: h

by dcrazy 1y ago

Which “Molex connector” are you referring to? The ATX spec specifically specifies Molex Mini-Fit part numbers, and claims this is for compatibility with PCIe: https://cdn.instructables.com/ORIG/FS8/5ILB/GU59Z1AT/FS85ILBGU59Z1AT.pdf https://cdn.instructables.com/ORIG/FS8/5ILB/GU59Z1AT/FS85ILB... Is Mate-n-Lok perhaps a compatible product from a competitor?

fredoralive 1y ago
It’s the one the diagram of connectors calls “peripheral power connector” but the document doesn’t seem to go into details for it. Basically the original PC drive power connector, so 5.25” drives, older hard discs, optical drives etc. use it, in the latter cases it’s been replaced by the SATA power connector.
numpad0 1y ago
"Molex" usually refers to flat 4 pin AMP 1-480424-0 or Molex 8981-04P connectors(part number taken from random pdf on the Internet[1]). Confusing as it is... Actual Molex Mini-Fit are rarely colloquially referred to as Molex. 1: https://community.intel.com/cipcp26785/attachments/cipcp26785/intel-optane-ssd/2893/1/developer_specs_ATX12V_1_3dg.pdf https://community.intel.com/cipcp26785/attachments/cipcp2678...
- ssl-3 1y ago
  I've heard it argued that "Molex" means any extruded-pin connector. Like "Kleenex" means any facial tissue that is meant to be sneezed on. (Both uses are wrong, but both also tend to promote efficient communication.)
  - SAI_Peregrinus 1y ago
    And "JST" is used for any small white plastic connector with one side open showing the pins. "DuPont" means "Amphenol Mini-PV" or "Harwin M-20" or any other Mini-PV clone.
  - 0_____0 1y ago
    I work a lot with connectors and I'm not really sure what you mean by extruded pin connectors. Typically the terminals are formed from sheet, unless you're using fancy 38999-style pins, which I believe are machined (and very expensive).
    - ssl-3 1y ago
      I'm not sure what they meant, either. It's just a thing I've heard, verbatim. I think "extruded" in this context comes from CAD terms, wherein: One builds the 2D cross-section of whatever complexity is entailed, and then mashes the "Extrude" button to add a third dimension to the shape. I don't think the term, as-used, has anything at all to do with extrusion as a manufacturing process.
  - msla 1y ago
    At a certain point, the genericized trademark is the correct term, like how aspirin is the correct term (only term, really) for a specific preparation of acetylsalicylic acid, even though it was a trademark of the Bayer corporation.
    - ssl-3 1y ago
      Yeah. The same thing also happened to heroin, which was also a trademark of Bayer. ;)
  - hhh 1y ago
    I’ve seen Molex’s part catalogue, and would expect that almost any connector could be a molex part ;)
- dcrazy 1y ago
  Ah, so it does appear that Mate-n-Lok is a name that AMP/TE uses for some Molex-compatible products. For example, TE’s Micro Mate-n-Lok appears to be compatible with Molex’s Micro-Fit.
bradfa 1y ago
ATX should call out Molex Mini-Fit Junior connectors. There are many Mini-Fit.

by dcrazy 1y ago

fredoralive 1y ago

It’s the one the diagram of connectors calls “peripheral power connector” but the document doesn’t seem to go into details for it. Basically the original PC drive power connector, so 5.25” drives, older hard discs, optical drives etc. use it, in the latter cases it’s been replaced by the SATA power connector.

numpad0 1y ago

"Molex" usually refers to flat 4 pin AMP 1-480424-0 or Molex 8981-04P connectors(part number taken from random pdf on the Internet[1]). Confusing as it is... Actual Molex Mini-Fit are rarely colloquially referred to as Molex. 1: https://community.intel.com/cipcp26785/attachments/cipcp26785/intel-optane-ssd/2893/1/developer_specs_ATX12V_1_3dg.pdf https://community.intel.com/cipcp26785/attachments/cipcp2678...

ssl-3 1y ago
I've heard it argued that "Molex" means any extruded-pin connector. Like "Kleenex" means any facial tissue that is meant to be sneezed on. (Both uses are wrong, but both also tend to promote efficient communication.)
- SAI_Peregrinus 1y ago
  And "JST" is used for any small white plastic connector with one side open showing the pins. "DuPont" means "Amphenol Mini-PV" or "Harwin M-20" or any other Mini-PV clone.
- 0_____0 1y ago
  I work a lot with connectors and I'm not really sure what you mean by extruded pin connectors. Typically the terminals are formed from sheet, unless you're using fancy 38999-style pins, which I believe are machined (and very expensive).
  - ssl-3 1y ago
    I'm not sure what they meant, either. It's just a thing I've heard, verbatim. I think "extruded" in this context comes from CAD terms, wherein: One builds the 2D cross-section of whatever complexity is entailed, and then mashes the "Extrude" button to add a third dimension to the shape. I don't think the term, as-used, has anything at all to do with extrusion as a manufacturing process.
- msla 1y ago
  At a certain point, the genericized trademark is the correct term, like how aspirin is the correct term (only term, really) for a specific preparation of acetylsalicylic acid, even though it was a trademark of the Bayer corporation.
  - ssl-3 1y ago
    Yeah. The same thing also happened to heroin, which was also a trademark of Bayer. ;)
- hhh 1y ago
  I’ve seen Molex’s part catalogue, and would expect that almost any connector could be a molex part ;)
dcrazy 1y ago
Ah, so it does appear that Mate-n-Lok is a name that AMP/TE uses for some Molex-compatible products. For example, TE’s Micro Mate-n-Lok appears to be compatible with Molex’s Micro-Fit.

bradfa 1y ago

ATX should call out Molex Mini-Fit Junior connectors. There are many Mini-Fit.