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Get quick answers to your questions by browsing through our frequently asked questions for immediate help and information.

Connectors for flexible circuits & PCB


What material is C12000B Test Terminal made of?

Material copper alloy. Composition : Cu 2µ+ Ni 1 To 2µ+ Sn 3 To 5µ = Tin plating over nickel and copper.

What is the maximum amperage for a C12000B SMD Test Terminal?

8A To 9A, and according to MIL 3A to 4A (Section is 0.20mm which corresponds to AWG22).


What is the energy used to make the crimping press work?

Example with 10500-SA(P):
The energy is pneumatic only (no electrical) : 6 Bar (hydropneumatic)
Effort : 1 800 Kg/Cm2
Reel contacts speed : 5cm/S roughly
Capacity : up to 30 cycles per minute (well trained operator)

What type of circuit can be crimped?

All types of flexible circuits whose thickness ranges from 75µ to 350µ in standard.

Depending on the press (1.27mm or 2.54, manual or pneumatic) and on the material itself, we can use thicknesses from 50µ to 500µ. Please contact us.


What is the maximum soldering temperature for Nicomatic pins, headers and shunts?

250°C during 5s.

What is the operating and shelf temperature of the Nicomatic headers?

PCB headers :

- Part Numbers with -1 at the end = -55C To +150C

- Part Numbers with -9 at the end (High Temperature Insulator) = -55C To +230C

FFC Cables & Jumpers


Is it possible to connect a flatcable with a AWG cable?

Yes. Nicomatic provides an interconnect solution which allows to associate the two systems:
- 2SLxx (female housing)
- 1SMxx (male housing)
- 12472 (female contacts)
- 12471 (male contacts)


What is the cable used for flexcable jumpers?

The flat cables used for Nicomatic flexcable jumpers equipped with Crimpflex connectors are made of flat copper conductors both sides adhesive bonded to aluminium foils.


Which standard pitches do you have for FFC cables?

0.5 / 1 / 1.25 / 1.27 / 2.54mm pitches are available.

From 0.5mm for space saving to 2.54mm, a large variety of pitches is available to suit your needs.

P3 & P7 styles (FFC cables): what is the difference?

P3 cables are used for mating to ZIF sockets and P7 are for soldering to a PCB.



How do I send back the defective parts to Nicomatic?

Please report the issue to Nicomatic, the quality department will issue a RMA number if applicable. When returning the parts record the RMA No. On the package.

If Nicomatic is not my direct contact (I have not been delivered by Nicomatic), how to report a claim?

Please contact your sales associates. Nicomatic as the manufacturer will provide necessary assistance and support to rectify the issue.

Whom should I speak to in case of finding defects or discrepancies?

For parts that are purchased from Nicomatic France, please contact QUALITY@NICOMATIC.FR. For parts purchased from other subsidiaries please contact sales at that facility.

Metal domes & components


What does "Dimple" stand for?

There are 2 types of Dimple : Dimple & Micro-Dimple. The Micro-Dimple exists for 6mm domes. Thanks to its small size it allows, in case of dust on the circuit, to eliminate the dust and make the contact.
The Dimple on the 8.4mm,10mm & 12.2mm is recommended for flexible circuits in order to limit the travel.

What do you mean by SWITCH'AIR?

It is a patent & trademark of Nicomatic. The Switch'Air Dome helps to create a cushion of air between the domes so that they do not stick together. This process ensures an efficient and reliable automatic placement.


What is shelf life after opening?

Shelf life after opening the moisture proof packaging of LEDs has changed from 1 year to 1 week. It is recommended that customers use all LEDs within the package at one time. If the LED after unpacking is not used, it must be resealed and stored, and it is recommended to bake before the next use of the upper part.

The difference between ZQW35D-035 & ZQW35W-035?

It Is The Same One.

The difference between ZMG55W-05-10K & ZMG55W-05?

The data are the same, the only difference is the taping's quantities.


What is a P.A.S type array?

P.A.S. (Pre-Assembled Spacer). It is an additional layer applied under the retaining layer with channels enabling a volume of air around the dome. The spacer can be made of different materials, for example with polyester 0.1mm thick or transparent PET 0.1mm thick.
The ventilation is made via channels in the spacer layer connecting the various dome chambers.

Can we speak of a standard array?

The array with kiss cuts is an array with a series of cuts in the polyester/adhesive carrier around the dome. It is considered as a standard product. However, P.A.S. arrays tend also to become a standard. It depends on the usage.

What are the advantages of an array of domes compared to bulk orders?

The array will make it possible to place at once all the keys of your MMI switch. This you will avoid all problems related to dome positionning, lacking dome double or reverse dome.

What is an array of domes?

It is a polyester carrier with pre-positioned domes. It can be described as a custom made array according to the specification of our customers.

High performance micro-connectors


What are the performances tested on AMM?

AMM has been designed as a miniature connector for demanding environments taking as well into account your supply chain problematics in terms of availability, cost and streamlining. For this purpose, our AMM connector has been tested against key performances (electrical, vibration, shock,...) to provide you with product reliability and supply chain affordability. The list of performances tested is available on the AMM webpage.

What are the details of a standard pre-wired female connector?

Standard pre-wired female connectors are delivered with mounted jackscrews (V16) and blue AWG28 MIL wire, backpotted. It is available in lengths of 150, 300 and 450mm.

Those versions are stocked.

You can also select other AWG (AWG26 or AWG30) with other wire colors and adapted length upon request.

What current AMM is able to carry?

We can provide you with more refined details depending on the number contacts you use, the configuration type and other parameters such as cable AWG. Here are some examples at 25°C: 
For 6 pins configuration, from 4A per contact on PCB/PCB to 4.8A per contact on PCB/AWG26 
For 20 pins configuration, from 2.5A per contact on PCB/PCB to 4.8A per contact on PCB/AWG26 
For 50 pins configuration, from 1.8A per contact on PCB/PCB to 3.2A per contact on PCB/AWG26

What configurations are standard on AMM?

You can use PCB to PCB assembly, either straight through or SMT. And PCB to wire with male connector on PCB and female pre-wired.

What are the pin counts available on AMM?

With AMM, you can arrange 6, 10, 20, 34 and 50 signal contacts. Those pin counts are standard and stocked. It is possible to have other arrangements from 4 to 50 upon request, Please contact us.


Why use an OMM connector?

It is reliable in small spaces & MIL type harsh environments. It can save up to 50% of weight and space vs. a CMM that generally has 2 ears needed for the fixings on each side.

What is an OMM 8-Series micro-circular connector?

OMM is a small round connector based on the same materials as the market star CMM connector. It is used with LF signal contacts and is modular with the possible configurations from 1 to 8 pins. It has 1 central captive screw for a secure connection.


What is Microflex?

It is a Hi-Rel flexible connection system used in MIL-AERO applications mainly. NICOMATIC provides an alternative to classic round cables - 2mm pitch - 2 rows, from 04 to 60 signal contacts - board to board, board to cable, cable to cable versions - 3A contacts

What is the operating voltage for Microflex?

Minimum breakdown voltage = 1000 Vrms
Withstanding voltage = 750 Vrms
Rated voltage = 250 Vrms (Also called operating voltage)


What is the thickness of nickel and gold plating for CMM322YL and 321YL connectors?

Contact area is Copper Alloy/ Ni (2µ) + Au 1µ
Contact tail Is Copper Alloy / Ni (2µ) + Au Flash 0.1µ
Body is Copper Alloy / Ni 2 Μ+ Au 0.2 Μ
Socket boby is Beryllium Alloy / Ni 2 Μ + Au 1.25 Μ

Nickel 2µ is used as a barrier against Migration of Au. If you put Au directly on Copper that would lead to Gold pollution and then to oxidation, So there will be a very bad contact resistance.

If you remove a contact, can you reinsert?

Yes. This is a 1 time reinsertion for LF crimp contacts, 50 cycles for special contacts HF/HP series 30 (coaxmatic 30) and 5 cycles for special contacts HF/HP series 22 (coaxmatic 22).

What is the maximum frequency of the coaxial contacts?

Up to 11 Ghz (depends on the cable used and test routine followed).

What is the maximum intensity for high frequency?

Up to 30A depending on cable and test routine used.

Does CMM comply with an inflammability standard?

Yes, UL 94-V0 norm.

Could you specify which termination styles are available?

The following termination styles are available : board solder, surface mount, crimped on cable or solder on cable and pressfit.

What is the maximum number of contacts in a CMM connector?

CMM 100, 02 To25
CMM 200, 04 To 50
CMM 220, 04 To 60 (15 contacts HP/HF max.)
CMM 320, 06 To 120 (20 contacts HP/HF max.)
CMM 340, 06 To 120 (64 contacts HP/HF max.)

What is the CMM product range by Nicomatic?

Nicomatic offers 4 product families : CMM100/200 series, CMM220 series, CMM320/340 series and CMM multi-mix series :

CMM 100, simple row of contacts, signal (LF) only
CMM 200, double row of contacts, signal (LF) only

CMM 220 : double row of contacts, this connector benefits from the option of a mixed layout, giving the designers a choice of high frequency, high power, fiber optic (upon request) and low frequency.

CMM 320, three rows environment with up to 16 special contacts (up to 120 LF contacts).
CMM 340, three rows with up to 64 special contacts if no signal contact is used.


CMM Multi-Mix, 2 or 3 rows with possibility to mix HF, HP and LF contacts of same type in one connector.

Is there a locking system?

Yes. For the CMM100 & 200, an optional latch offers the security of interconnection. For the CMM220, 320/340 and CMM Multi-Mix, an internal locking system is available (Jackscrew mechanism).

What does CMM stand for?

In French, Connecteur Micro-Millimetrique Or Micro-Millimetric Connector. It is a 2mm pitch connector.

Board to board, board to wire and wire to wire, CMM connectors give the designer a wide choice of configurations in data transmissions (HF or LF) and High Power supplies (HP). The connector is available in mixed layout or in all signal.


What material is used for DMMs?

Shell: Aluminum 6061 type Alloy W/ chemical Nickel Plating 10µm

Insert: Special PPS ranked UL 94-V0

Jackscrew: Passivated stainless steel 300 series

Why use a DMM instead of a Micro-D or Sub-D connector?

- Saves Space: lower profile, high density package & small footprint

- Full modularity: choose signal, power or coax contacts

- Easier maintenance: crimp contacts are removable

- Higher flexibility: options for front/rear panel mount, straight/90°, cable/Pcb

- Shorter lead-time & lower MOD

What is DMM?

DMM Micro D mix connectors are a board to board, board to wire, wire to wire and front or rear panel connector with a fully modular and hybrid range.

All series are dedicated to cable and printed circuit board applications. They offer many advantages vs. the traditional Micro-D MIL-DTL-83513G normalized connectors.

DMMs are mechanically strong (metal connector shell - 6061 type Alloy W/ chemical Ni 10µm) and are EMI/RFI 360° protected.