I work into the update of the Poppy electronic architecture. To do this I need to choose a really good hardware connection.
I search a connector who respond to this constraints :
With my personal experiment I think I will use FPC connectors for multiples point connection :
And IDC for power connection :
What do you think about that?
Do you have some advice for me?
For power connection, I have already used the “green weidmuller” connectors which are very robust and available in Farnell.
It allows fast deconnection.
For signal, I have no more idea.
I like this kind of connection and but there are really big and expensive, I prefer to use it during test phase!
Hi,
MicroMatch connectors (from TE Connectivity) are the best one I found for signal.
You can find them for every bus size (from 2 to 24), the board connector is in SMD and through hole, and both are easy to solder.
To assemblie the male to the bus wire, you just have to press the wire into the clip of the connector, easy and fast.
There is a polarizing slot on the male but it breaks easily if you force in the wrong orientation. I personnaly prefer to use them as reversible connectors, it is safer for electronics which is not protected to inverse polarity risks.
They are not too expensive (1€ for 8p female and 0.5€ for 8p male), and above all TE Connectivity can send you (lot of) samples (with university email).
Thanks @Theo,
I already use this one and you right, there are really good. I will do a small test with somme connectors I add this to the connector test list.
A molex connector built for power and data. The large contact surface for the power allows current up to 40A.
Yet the connector is pretty big and seems design to be connected directly with a PCB as male plug.
The complete EXTreme series catalogue: http://www.literature.molex.com/SQLImages/kelmscott/Molex/PDF_Images/987650-2582.PDF
Very low-profile (1.5mm) 2 to 6 way connector but also quite low current tolerance, only 1.5A.
Product page: http://www.molex.com/molex/products/family?key=picoezmate&channel=PRODUCTS&chanName=family&pageTitle=Introduction
Datasheet: http://www.literature.molex.com/SQLImages/kelmscott/Molex/PDF_Images/987650-1961.PDF
Tiny connector with up to 3A tolerance and 1.5mm pitch.
Product page: http://www.molex.com/molex/products/family?key=picolock&channel=products&chanName=family&pageTitle=Introduction&parentKey=wire_to_board_connectors
Datasheet: http://www.literature.molex.com/SQLImages/kelmscott/Molex/PDF_Images/987650-9061.PDF
1.2mm pitch and 2.5A available in 3, 4 and 6 connections.
Product page: http://www.jst-mfg.com/product/detail_e.php?series=627
Datasheet: http://www.jst-mfg.com/product/pdf/eng/eACHF.pdf
2.5mm pitch, 2.5 A only available in 5 connections.
Product page: http://www.jst-mfg.com/product/detail_e.php?series=588
Datasheet: http://www.jst-mfg.com/product/pdf/eng/eXAG.pdf
This AUH connector is compact and low profile type (height 1.85mm) wire-to-board connector, available in 3 or 5 contacts and allows 5 amps.
Product page: http://www.jst-mfg.com/product/detail_e.php?series=629
Datasheet AUH: http://www.jst-mfg.com/product/pdf/eng/eAUH.pdf
The new LBT A Type Series crimp style connectors provide a space saving connection for wire-to-board connections that incorporate both power and signal circuits and sequencing for lithium battery and other power connection applications. These SMT connectors have a low profile of 3.0 mm (.118”) height when assembled. The LBT A Type Series offers compact size, incorporates polarization, and stable contact performance under high vibration, distortion, and unexpected external forces. The SMT headers are available in side entry configuration. Their unique header power contact is designed with a “heat dissipation/heat sink” feature which radiates the heat away from the power contact permitting higher current carrying capability.
Rated at 7A AC/DC (using 20 AWG) power and 0.5A AC/DC (using 28 AWG) signal at 50V AC/DC. PCB mounted side entry headers are available in 3, 5, 7 and 9 circuit sizes. The LBT A Type Series has an operating temperature of -25 degree C to +85 degree C including temperature rise when applying an electrical current. The PCB mounted power contacts are made of tin plated copper alloy and the signal power contacts are made of phosphor bronze. Molded in a RoHS compliant 94V-0 material, the polarized housings feature a secure locking system.
More info in this document: LBT.pdf (435.9 KB)
website: http://www.jst.com/LBT-series.html
2.5mm pitch, double lock feature and 3 amp rating.
Datasheet: http://www.hirose.co.jp/cataloge_hp/en_DF1B_20130411.pdf
J’aime beaucoup le connecteur rallonge sur celui-ci (au premier plan), que je n’ai pas vu sur les autres.
Ca veut aussi dire qu’on dois probablement pouvoir faire facilement des câble asymétrique!
non parce qu’il n’y a pas la version male en CMS ou traversant.
All the molex wire to board connector: http://www.molex.com/molex/products/group?key=wire_to_board_connectors&channel=products
The micro one never go above 3A.
This one looks good: http://www.molex.com/elqNow/elqRedir.htm?ref=http://www.literature.molex.com/SQLImages/kelmscott/Molex/PDF_Images/987651-1223.PDF but it is not yet really commercialized (preliminary product): http://www.molex.com/molex/products/family?key=nanofit_power_connectors&channel=products&chanName=family&pageTitle=Introduction&parentKey=wire_to_board_connectors
Should we consider having the power line separated? I think not, it is too boring for the user.
Looking again at the one @Matthieu posted: the JST AUH and the JST LBT A are very nice!
See the LBTAR-05V-2K-K (HF) (2 for power, 3 for data | 11.1mm x 3mm) from LBT.pdf (435.9 KB)
Should we order some?
yep I’m actually trying to do it but it is not widely spread yet…
Also we could imagine having 2 connectors, one for the power and one for the data.
So we could use both daisy chaining or star depending on the application need.
It open more flexibility to choose the connectors.
We could also keep the connector with data+power and add a second dedicated power connector on module requiring high power.
