[info] 121 pin connector 368255-2 (same as 1241434-1)

Hardware inside and outside of the ECU
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kb1gtt
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Re: 121 pin connector

Post by kb1gtt »

Is that 140 yen = $1.20 USD?
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Re: 121 pin connector

Post by AndreyB »

kb1gtt wrote:Is that 140 yen = $1.20 USD?
China and Japan are not the same country exactly. If I recall correctly they are not even great friends.

http://www.xe.com/currency/cny-chinese-yuan-renminbi
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Re: 121 pin connector

Post by puff »

it's Yuán, not Yen :-)

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Re: 121 pin connector

Post by kb1gtt »

Ah, so 140 transformer thingies = $23 USD.
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AndreyB
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Re: 121 pin connector

Post by AndreyB »

The 'german' kind of this connector is actually available in the US:

Image

Would be interesting to see how fast the number in stock would go down

Image
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Re: 121 pin connector

Post by jbjslambert »

I am new and sorry for anything I should have noticed already. I am looking for break out boards as pictured at the top of this post for the 121 pin molex ecu connector. I see that someone has designed one from this site, but im not sure how to use the file source or where I can send it to have the board made? thanks for any help pointing me in the right direction

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Re: 121 pin connector

Post by AndreyB »

I have a few of these, just listed them at https://www.tindie.com/stores/russian/ - https://www.tindie.com/products/russian/ecu-121p-connector-bare-pcb/

If you are not in the USA shipping price would be a disaster :(

Anyway, back to your question how to make your own batch: one of the links above would get you to https://svn.code.sf.net/p/rusefi/code/trunk/hardware/368255-2-connector/368255-2-gerber/368255-2-gerber.zip file.

"Gerbers" are these magic files you provide to a PCB shop to make boards. You can take that gerber ZIP file to https://oshpark.com/ or https://www.seeedstudio.com/ or any other PCB shop.

The board would be a 2 layer, would go as "under 5cm x 15cm", your call on color and thickness.
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Re: 121 pin connector

Post by kb1gtt »

The source files are done in KICAD. If you are looking to make changes to the board, you can do the changes in KICAD. Or you can grab the gerber files and send them to a PCB house to have them fabricated.
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Re: 121 pin connector

Post by jbjslambert »

Thanks all, I am going to send it off to seeestudio.

Hopefully 1 OZ copper should be enough even for the power side? I made it exactly 5cmx15cm. Also, I am trying to source an ECU enclosure here in the US to use with the 121 pin connector, if I cant find one, I guess I will grab an Altima ECU to use as a mock up before ordering 10+ from China later on.

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Re: 121 pin connector

Post by marko »

I'm not sure if it was noticed / mentioned, I was looking into these connectors and found some info at some point.

Korean variant is much cheaper (at least at mouser). 1/3rd the price. eg 81p plug is $6 or something vs $20.

German variant has at least two subtypes. On motronic ME7.x for VW cars they use this to key things (eg. whether the car has wideband O2 or not, was one use. Maybe there are more).

here you can see the key

Image

I'll look the ECUs I have and post the tyco part numbers for the two variants sometime.

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Re: 121 pin connector

Post by AndreyB »

Code: Select all

1)                   rusEfi logo and board version are missing
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Re: 121 pin connector

Post by AndreyB »

What about PCB thickness? For example this specific connector board. Is the popular default 1.6mm the best thickness, or should it be maybe only 1.0mm? 0.8mm?
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Re: 121 pin connector

Post by kb1gtt »

I don't think thickness matters that much. The connectors are reasonably strong with any PCB installed.
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Re: 121 pin connector

Post by AndreyB »

kb1gtt wrote:
Sun Dec 16, 2018 4:35 am
I don't think thickness matters that much. The connectors are reasonably strong with any PCB installed.
I will order 0.8mm just to save the planet, also 1.6mm looks so last century.

Just a random fact: Audi is placing ECUs inside a cage so that you cannot just unplug a connector. Same break away bolts like they use on steering column locks.
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Re: 121 pin connector

Post by AndreyB »

Code: Select all

1)                         center hole for plastic latch is too small
side latches are fine

New connector is available at rusEfi store - https://www.tindie.com/products/russian/121-pin-ecu-connector/
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by AndreyB »

Working with the harness side of the connector

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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by dvjcodec »

I did similar to my projects. EDC 15+ ECU is very cheap in my country. Is possible to share 3D model of connector for PCB renderings?
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56605023_2095411143909404_8457764571262746624_n.jpg
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56696991_2095411137242738_2132302549221376000_n.jpg
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by AndreyB »

dvjcodec wrote:
Sun Jul 07, 2019 9:04 pm
Is possible to share 3D model of connector for PCB renderings?
First post in this thread has links to TE site - TE site has 3D PDF and other 3D files, we used those.
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by AndreyB »

dvjcodec wrote:
Sun Jul 07, 2019 9:04 pm
Is possible to share 3D model of connector for PCB renderings?
First post in this thread has links to TE site - TE site has 3D PDF and other 3D files, we used those.
https://rusefi.com/s/howtocontribute
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by dvjcodec »

Thank you.
I didn't know about Eagle's library for this connector and everything measured and draw footprint myself :x :x :x :x :x
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by AndreyB »

dvjcodec wrote:
Sun Jul 07, 2019 10:16 pm
Thank you.
I didn't know about Eagle's library for this connector and everything measured and draw footprint myself :x :x :x :x :x
TE has lots of info, we have lots of info at https://rusefi.com/wiki/index.php?title=Hardware:OEM_connectors
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by kb1gtt »

We use KICAD and do not use Eagle.
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by dvjcodec »

russian wrote:
Sun Jul 07, 2019 10:17 pm
dvjcodec wrote:
Sun Jul 07, 2019 10:16 pm
Thank you.
I didn't know about Eagle's library for this connector and everything measured and draw footprint myself :x :x :x :x :x
TE has lots of info, we have lots of info at https://rusefi.com/wiki/index.php?title=Hardware:OEM_connectors
Nice collection.
kb1gtt wrote:
Mon Jul 08, 2019 12:39 am
We use KICAD and do not use Eagle.
I know, but when learn Eagle few years ago is hard to switch my brain to KiKad. KiKAD is a very good, and free for charge stuff.
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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by MarenB »

Hello from Germany,

I am new to this forum and currently not running a rusefi. However, I am about to fit a megasquirt I had lying around into a road-legal offroad buggy. The vehicle's genuine ECU is a Chinese Bosch ME7.5.7 with this 121-pin connector, here named as "Korean style" version. Well, actually that ECU only uses the larger 81-pin connector, the 40-pin side is blank. My plan is to use the full size connector in a housing of a donor ECU just used to patch wires from one side to the other. This way I can hide my megasquirt somewhere else :)

Before I order the PCB at SEEED, is there anyone in Europe who already produced a batch of the pcb (and would sell one piece to me) or is anyone else interested?

Cheers,
Maren

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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by andreika »

The third option for 81-pin female connector is TE 1473244-1:
81pin-female-connector-TE-1473244-1.jpg
81pin-female-connector-TE-1473244-1.jpg (443.88 KiB) Viewed 2209 times

AKA "Komatsu PC200-8", "60D98D", "60D/98D", "3601115-98D-60D". It's more like "german" type (368376-1) and doesn't fit the "asian" male pcb connector (without modification). Has a "rocking lever" on the top for locking mechanism.

The corresponding male connector is TE 1746979-1:
121pin-male-connector-TE-1746979-1.png
121pin-male-connector-TE-1746979-1.png (179.23 KiB) Viewed 2209 times

..Which is visually undistinguishable from the "german" type 1241434-1. Still more tests needed to verify the compatibility.

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Re: 121 pin connector 368255-2 (same as 1241434-1)

Post by andreika »

Here's the drawing for the 3rd connector type (1473244-1 + 1746979-1):
121pin-3rd-type-drawing.png
121pin-3rd-type-drawing.png (391.3 KiB) Viewed 2207 times

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