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| sureshot:
I'm trying to find a connector socket and pin header system. What i want to do is interface the legs of a transistor TO218. I've found the molex type pc fan socket fit, but its every other hole in the socket. There 2.54 mm pitch i think, there seems to be a socket plug system that is 5.08mm pitch, and that would be perfect. Trouble is even though the 2.54mm system fits, every other hole, the wire diameter to those crimps might not handle 5 Amps. The intended maximum current i would use. Does anyone know a source for the 5.08mm socket header system ? I'm in the UK. Any ideas help appreciated. |
| Kjelt:
One step back, what do you exactly need? is it a - PCB end connector with screw terminals or - PCB connector with insert or - Wire to Wire connector ? There are many 5,08mm pitch connectors, Farnell with filters will give you hundreds but what is it exactly you look for? |
| sureshot:
Its for a non standard application. Its for trasistors and voltage regulators. The type I've been playing with are the pc fan type molex connectors. There 2.54mm and fit TO220 pins fine, and for my application that's less than 1 Amp so ok for that. The transistor is a TIP147 and TIP36C the same connector socket fits, but every other pin hole in the socket. There rated for up to 4 Amps. The issue is wire diameter to the crimp that fits that housing connector. Its unlikley to be able to handle up to 5 Amps current, although i removed the wires from a 4 way socket and can fit 2 x 4 Amp rated conductors through the holes easily. The problem would be the crimp to wire might be to large. I've found a larger molex type socket of 5.08mm that would fit every transistor TO218 pin. The problem is i can only find sellers that supply industry and not retail sales. The idea is for mounting semiconductors transistors and voltage regulators to cpu heatsinks. In the past I've soldered a small piece of strip board to semiconductors and wires, that works fine, i just heatshrink the connections. I'm after a quick change of device option to interface the cpu heatsink, i know all this is non standard use. But seems like an option I'd like to try for swapping out semiconductors with out having to reach for a soldering iron. My off the board connections are under 6" and typically much less. The molex type socket of 5.08 mm socket is perfect for the transistor interface, and the 2.54 mm socket perfect for voltage regulator TO220 devices. Hope that makes some sense. Thank you for your reply. |
| Kjelt:
The issue I see is the 5 Amps, that is a lot for a "sliding" action connector to a foreign pin (normally connectors are mated so they fit perfectly and then larger amps are not a problem). What you describe I have seen in VCC2000 videorecorders from Philips, they connected their Voltage Regulators that way but indeed <2 Amps. Your connector should fit the pin and have decent pressure on the contact on multiple sides in order to get a good connection. Instead of trying to find a 3 pole connector you might have better luck finding a good fitting single pole connector ? |
| JS:
--- Quote from: Kjelt on July 06, 2018, 12:48:25 pm ---The issue I see is the 5 Amps, that is a lot for a "sliding" action connector to a foreign pin (normally connectors are mated so they fit perfectly and then larger amps are not a problem). What you describe I have seen in VCC2000 videorecorders from Philips, they connected their Voltage Regulators that way but indeed <2 Amps. Your connector should fit the pin and have decent pressure on the contact on multiple sides in order to get a good connection. Instead of trying to find a 3 pole connector you might have better luck finding a good fitting single pole connector ? --- End quote --- I thought he was using the mating connectors and crimping the terminals to the male... JS |
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