Micro-Fit 3.0 RMF (Reduced Mating Force) Terminals are designed for applications needing lower engagement and disengagement forces or when the units are cycled frequently. For lower applied costs, OEMs often prefer a compliant pin connector over one that requires soldering. The Micro-Fit 3.0 CPI Header mates with Micro-Fit 3.0 Receptacle, allowing running changes as boards transition from solder to press-fit applications. The robust eye-of-the-needle design provides a reliable interface when recommended board layouts are followed. Micro-Fit 3.0 CPI (Compliant Pin) Connectors provide a compliant pin interface while maintaining all the features of the standard Micro-Fit 3.0 Connector. The TPA reduces terminal back-out by providing locking redundancy assemblers cannot insert the TPA unless terminal is properly inserted. The Micro-Fit TPA Connector Family helps prevent failure in end products by offering terminal position assurance (TPA). Doing so can cause damage to the connector and/or terminal and consume valuable labor time. In hard-to-reach applications, such as drawers or fan assembly trays, connectors need to be mated and unmated without being seen. They allow mating misalignment (per product drawing). Micro-Fit 3.0 Blind-Mate Interface (BMI) Connectors are designed for blind-mating applications. OEMs often need power connectors in space-constrained applications. However, it is normally found on the end of some wires in the SAME group as the wider older '4-pin Molex' outputs.The Micro-Fit Connector Family offers up to 8.5A with a 3.00mm pitch, delivering power in a compact package in wire-to-wire and wire-to-board configurations. But this connector for smaller floppies is smaller, too, and looks a lot like a 4-pin fan female connector. The newer (now also almost outmoded) 3½' floppy disk drives have a slightly different connector for power from the PSU, but it still has the same voltages and 4-pin spec of the original wider Molex. These connectors have one Red wire on one end (+5 VDC), a Yellow on the other end (+12 VDC), and two Black ones (Ground) in the middle holes.īy the way (this was not part of your query) watch out for a source of confusion and trouble. So now, even though their original uses (floppies and IDE HDD's) have almost disappeared, you will still find them as one type of power output connector on PSU's. It was so commonly used that other items like fans and LED light strings have used them as power sources, also. This item was used extensively to supply power to IDE hard drives and older 5¼' floppy drives, and later to optical drives. That way it can only fit into the mating male connector one way. If you look at the end with open holes, you'll see that its outline is rectangular except that two of its corners are cut down at a 45-degree angle. This connector is about ¾' wide with four holes in a straight line. But by far the most common use of the label '4-pin Molex connector' is for a female connector on wires coming out of the PSU. Molex is a company that makes hundreds of electrical connectors, many used in computers at various spots. That covers the gender part, now about 'molex'.

Molex male connector