Can you provide a link to a datasheet which describes this part and includes the full part number and both electrical and mechanical data?

https://www.masterelectronics.com/dat,asheet/hh53p-l-ac110v[Data Sheet, ][1].aspx?p=11340007 [1]: https://www.masterelectronics.com/datasheet/hh53p-l-ac110v.aspx?p=11340007 Im a bit new to this, but ill do my best. Page 4, its the HH53P-L 3PDT, (12v AC/ 6v DC). Using this part along with limit switches, to reverse polarity on a motor that drives a linear carriage assembly.

@Junkwork [enter link description here][1] [1]: https://www.masterelectronics.com/datasheet/hh53p-l-ac110v.aspx?p=11340007

In: https://www.masterelectronics.com/datasheet/hh53p-l-ac110v.aspx?p=11340007 Is this what you want a PCB footprint for? ![enter image description here][1] [1]: /editor/20171219/5a3927a40582a.png

Is this PCB footprint somewhere near what you are looking for? ![enter image description here][1] Note that the one just below it will not work properly and should not be used: ![enter image description here][2] [1]: /editor/20171219/5a3929fdcedb2.png [2]: /editor/20171219/5a392a74ade8c.png

where is microcontoller 8051

@vaibhavibirajdar, Click **Parts** and search for `8051`: ![enter image description here][1] [1]: /editor/20171221/5a3aeab41f97b.png

Sorry for the late replies. Holidays and all. |This should clear things up ![the component][1] ![wiring diagram][2] [1]: /editor/20180115/5a5c1ebc5d122.jpg [2]: /editor/20180115/5a5c1fef4181e.jpg

Three problems. 1) You need to clarify exactly what it is you want. Do you want to simply solder the pins on this relay directly to the PCB through some holes? Or: Do you want to solder a through-hole socket into the board and then fit the relay into the socket? (although there does not appear to be a suitable socket listed in this datasheet;) 2) The pin positions and spacings on the relay you have chosen are not dimensioned: ![enter image description here][1] The pin positions and spacings on the PCB mounted version of the relay are dimensioned but there is no guarantee that they are the same as on your chosen relay or that they are on the same pin centres. * Without these dimensions it in not possible to accurately define a suitable PCB footprint. So, you will either have to find a datasheet that shows those dimensions or measure them yourself. ![enter image description here][2] 3) Do you want a PCB footprint and a schematic symbol? [1]: /editor/20180116/5a5cf96023a08.png [2]: /editor/20180116/5a5cf9c6932d4.png

Yeah. I'm still wetting my feet with circuitry. I'm finding it really fun to learn though. As for problem 1. - Solder the pin directly from the relay 2. The dimensions in mm are --> PC board drilling **HH53B** 3. PCB footprint Here is my current schematic. ![enter image description here][1] [1]: /editor/20180117/5a5eddd9a49b8.png

The 2 switches for this have to be **momentary push** limit switches. Its for a single axis gantry on a rail, where the limit switches (attached to a clamp each) can be physical moved up and down this axis for this automation.

`The dimensions in mm are --> PC board drilling HH53B` but are the pin sizes for the PC board drilling HH53**B** or for the pluggable HH53**P**?

Pins are for the pluggable HH53P :)

Sorry to go on about this but if it's wrong your PCB will be a coaster... Can you verify that the pin centres for the HH53P are the same as for the HH53B? Thanks.

Yes. Also they 4mm L, and 1mm thick.

Thanks for helping andyfierman, if and when I complete this circuit board, i could send you a free sample of the final product.

Hi, I have made a Schematic Symbol and a PCB footprint for what I think you want. Do a SHIFT+F search for `HH53P-L-AC110V 3PDT` Please check it very carefully. `...i could send you a free sample of the final product.` Does that include a gantry complete with the linear carriage assembly? Oh, and a yard to put it in? ## ***: )***

Just the the PCB and perhaps any left over parts lol :) cheers

Looks good, thank you. Give a day or two and ill inform on how it goes.

![enter image description here][1] ![enter image description here][2] [1]: /editor/20180218/5a88ff9e2e79d.png [2]: /editor/20180218/5a88ffab76d09.png

Sadly, design is as far as I can go at the moment. I was going to do up this PCB DIY style using a printer and ferric chloride, however it turns out my printer is inkjet. Which now makes that idea a little difficult.

![enter image description here][1] [1]: /editor/20180218/5a891335c61b4.png

* Did you know that you can get the PCB fabbed directly by EasyEDA? https://easyeda.com/Doc/Tutorial/PCBOrder.htm#PCB-Order Before fabbing/submitting your order, please also see (4), (5) and (6) in: https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f

One point: how much current are your high voltage tracks carrying? You might need to make them wider. Search the web for `online trace width vs. current vs. temperature rise tools` that you can use for this. :)

Thanks again, i will check into all of that in the next couple of days :) As for current im thinking 12v at 5+ amps, apparently a standard for wiper motors.

http://ngspice.sourceforge.net/docs/ngspice-manual.pdf is up for me OK. This calculator: http://circuitcalculator.com/wordpress/2006/01/31/pcb-trace-width-calculator/ indicates that you'll need about 283mil (7.19mm) trace width on an outer layer for a 10degC rise at 10A using 1oz copper (standard for EasyEDA).

Oops...it wasn't you that was asking about the Ngspice website. Ignore that bit. :)

![enter image description here][1] [1]: /editor/20180225/5a92307ade6a9.png I was thinking of getting this fabricated directly from EasyEDA. However first, I'm not sure if how well my design will work, so any suggestions, such as improvements would be appreciated :)

@Junkwork ![Oops][1] [1]: /editor/20180225/5a92339946e3c.png

Can't really comment without a wiring diagram showing how the external parts of the circuit are connected. (The notes about Design Requirements documentation and the difference between a schematic and a wiring diagram in (2) of: https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f should help here) Better still, you could use the `RELAY_3PDT_EE` spice symbol and some external voltage controlled switches controlled by pulse sources (or possibly voltage controlled switches controlled by these sources) to model and simulate the actual system. You could even have some external modelling to simulate the transit time of the gantry between the switches and just set it running so you can see it running on it's own. :)