CMM connectors are designed to meet or exceed electrical & mechanical performances of MIL-DTL-55302F and BS-9525-F0033 standards. This modular connector allows more than 20 million arrangements.
In French, Connecteur Micro-Millimetrique or micro-millimetric connector. Its 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.
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).
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.
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.)
The following termination styles are available : board solder, surface mount, crimped on cable or solder on cable and pressfit.
Yes, UL 94-V0 norm.
up to 30 A depending on cable and test routine used.
Up to 11 Ghz (depends on the cable used and test routine followed).
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).
The contacts are qualified regarding withstanding voltage at high altitude (70 000 ft) according to MIL DTL 55302-3F standards.
Yes. They are qualified to function under 3A @250°C (without flame exposure) during up to 15mn.
No, Nicomatic is not submitted to ECCN / EAR. Products are in the category "not controlled", origin: France.
Polyethylen hd (PE hd) ou polypropylen (PP).
7.3mm spacer (+/-0.5mm) is standardised. For longer spacers, it is recommended to make tests before.
All CMM are RoHS compatible.
The gold flash plating is backward and forward compatible. Backward means soldered with tin lead and forward with pure tin soldering process. Between the 2 processes there can be a difference in temperature of 20 to 30C and 10 to 30 seconds. Gold flash plating withstands all the different curves, which is a big advantage compared to tin/lead or pure tin.
This also means that you can use your pure tin or tin/lead soldering process for CMM connectors, the choice being dependant more on the other components of the board and the decision to have a total RoHS compliant product.
Yes. The connector has been developed to perform under conditions of extreme vibration. It can be used in a Formula 1 or in a fighter ! (Shock severity: 100g for 6 ms vibration 0,75 mm, 10g RMS 6 hours long random with superimposed sinusoid. No intermitances measured when using on HSLI (High Speed Logic Interrupt) detector with a trip threshold of 2 ns).
Yes. Thanks to the insulator made of fiber glass filled thermoplastic, the temperature can reach up to 260C. Standard cycling temperature ranges from -60°C to +260°C.
CMM as a highly modular standard system allowing up to 20 million configurations!
Therefore, numerous configurations are possible given the type of connector. For example, in a CMM 220 configurations are limited by the space up to 15 cavities. In a CMM320, 32 contacts can be mixed with 20 special contacts "Coaxmatic30". In a CMM340, these possibilities are much higher.
A mixed version of CMM320 and CMM340 allows the best combination in terms of mixed layout and space.
Stycast 2651 MM and Catalyst 9 (8%to 10%): P/N Stycast 2651-40 CAT 9
The polarization key can be moved every 2mm. In a CMM 220 connector with 24 ways, we get 11 positions. Add to the P/N "KLL" ("K" means direction 1 towards contact 1, and 2 represents the opposite direction ; "LL" means the number of the shift).
J24 Crimp tool setting 7 (=3,3 daN) or J26 Crimp tool setting 6 (=4,7 daN).
As a general rule NICOMATIC coaxial contacts are always like 30-nnnn-xx. What means xx ?
The first letter x is related to the inner contact
The second letter x is related to the outer (shielding) contact
S = crimp
Z = solder
The general recommended torque is 20cNm.
As shown underneath, it is not possible to use a latch key to squeeze / lock the screw nut.
When the current comes from a PCB and out, the designer prefers to put the female on the PCB and male on cable or flex rigid PCB. The option of reverse fixing allows to use the F fixings on the female (CMM 222) and then the M fixing on the male connectors (CMM 221) whereas it is normally not possible. It is a practical solution especially appreciated in a number of applications.
Yes. We don't use pure beryllium for the contact sockets, but a beryllium++(<=2%) copper alloy. That is authorized and compliant with RoHS & REACH regulations.
M12 for Y female
F22 F24 for Y male
F23/F25/F26/F30 for V male
PS : F23 and F26 have the same characteristic only the head of the screw is different. Please refer to the CMM Catalogue Guidelines
Comment: F24 is more recommended than F22 for a 2mm board
We go as small as AWG32 thanks to a gauge reducer. Please refer to catalogue page 112 (May 2011 catalogue version).
CMM micro-connectors are submitted to vibration test after being submitted to life test (2 500 mating/unmating cycles) and of course they are mated (between 2 connectors and not 1 connector to PCB). The 3-axis vibration test allows to check the signal stability (no interruption greater than 1 micro second), which is a requirement for MIL-DTL-55302F standard.
Yes. NICOMATIC offers disposable backpotting moulds for CMM connectors : on-site harnessing is simplified thanks to a superior retention of crimped wires.
No. But you can use our silicon interfacial seal which has an extra protection for the connector:
- Anti water streaming function
- Protection against condensing, vapour
- Anti dust function
You can consult our custom design team to develop the right bespoke solution you may need under firstname.lastname@example.org
LF contacts: 1 200 V RMS
HP 22 series: 900 V RMS
HP 30 series: 1 500 V RMS
(sea level figures only)
Basic colour codes:
0 = black
1 = brown
2 = red
3 = orange
4 = yellow
5 = green
6 = blue
7 = violet
8 = grey
9 = white
Applications with voltage used at 1 500v Ac exist, so this should not be a problem.
The best recommendation is to test the connector inside your own environment condition.
The insulation is PTFE (Teflon). The "Er" value is 2,10.
LVDS is becoming more and more important, DMM Micro-D Mix connector has been created for this trend and meets 100 ohm impedance required for LVDS. Nicomatic special 4D floating connector also meets LVDS requirements and has been tested and approved by some prestigious worldwide clients. CMM also can accept LVDS signal @ 400 MHz, impedance 100 Ohm. Please contact us.
Yes, it will mate properly. No problem.
It is difficult to give a standard weight of CMM320 or DMM220 as it varies with the fixing and number of contacts but it is definitively a few grams for example:322Y036H01 is 4.5g and 322Y054H05 is 5.9g.
FOR DMM 10 contacts for example :D222SH-10-D03 is 2.13g
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.