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Nicomatic Microflex

A very innovative new solution for Mil Aero Applications, Microflex jumpers suit applications where space and weight saving is critical. With more and more printed ink and flex pcb circuits being used in Mil/Aero applications, Nicomatic now offers Micro-Flex. Microflex™ interconnection is a flat cable harness with screw fixing for high vibration environment. This jumper mates with CMM 220 connectors whose screw fixings provide high mechanical resistance. This solution has been tested to meet MIL-DTL-55302F. 3 versions are available Female-Female, solder pin-female and octopus multi branches.

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Description

Description

Thanks to their double know-how in both crimp connectors and CMM 2mm micro connector developments, Nicomatic has produced an innovative new connector/flex harness solution aimed at card-to-flex connections. This new “two in one technology” ensures a high mechanical link and electrical continuity between 2mm pitch CMM micro-connectors and flat conductor Crimpflex technology all to MIL type reliability standards.

One of the major advantages is a small 2mm pitch that allows the reduction of space, but there is also a lower weight feature that enables replacement of the discrete wires and bulky cables still very present in avionics equipment. Nicomatic is able to reduce up to 30% weight with a solution that is thinner, lighter and more cost effective than a traditional cable.

Key Features

Key Features

  • Board to board, board to wire with 4 to 60 contacts
  • Mating with male CMM 220 cable or PCB micro connectors
  • 2mm pitch contact, 2 rows
  • Jackscrew fixing hardware
  • Vibration resistance MIL-DTL-55302F level
  • Multiple mounting options
  • Saves up to 30% weight vs wire cables
  • Secure interconnection: jackscrew fixing
  • Vibration resistance for harsh environments
  • Based on proven technologies: Crimpflex® & CMM
  • Cost effective and short lead time
Specifications

Specifications

Materials

  • Housing – High temperature special PPS, UL 94-VO
  • Contact – Phosphor bronze
  • Crimping contact choice –
    F3= Gold plated Au 0.75μm
  • Cable – White polyester classified UL 2643 or 2690 or Kapton polyimide
  • Jackscrew – Stainless steel

Electrical

  • Dielectric withstanding voltage – 1000 Vrms
  • Current
    Individual contact (in isolation)
    – at 25°C Tamb. 3A max.
  • Working Voltage – 250V d.c. or a.c peak
    Proof Voltage – 750Vrms
  • Contact Resistance (after 50 cycles) – 15mΩ max.
  • Insulation resistance – >300 GOhm

Mechanical

  • Mechanical operations – 500 min
  • Max mating force (per contact) – 2N
  • Min. unmating force per contact – 0.2N
  • Crimp tensile strength – 15N
  • Retention force – 20N
  • Shielding option available
  • Mating with male CMM 220 (on pcb or cable)
  • Left cable side :
    M16 = jackscrew fixing
    Other fixing upon request

Environmental (includes CMM220)

  • Climatic category – 55/125/56
  • Vibration severity (General) – 10Hz, 2000Hz 0.75mm/98m/Sz (10gn) duration 6h.
  • Vibration severity (Additional) – 13.3Hz to 2000Hz random with superimposed sinusoids, duration 15 min each of 4 planes.
  • No intermittencies measured when using an H.S.L.I. (High Speed Logic Interupt) detector with a trip threshold of 2ns Bump severity – 390m/Sz (40gn) 4000 ± 10 bumps
  • Shock severity – 981m/Sz (100gn), for 6ms Acceleration severity – 490m/Sz (50gn)
  • Operating temperature (flat cable) –
    Polyester cable – -55°C to +105°C
    Polyimide cable – -55°C to +125°C
  • High quality of Crimp : gas tight
  • UL flame rating
    Housings UL94-V0
    Cable UL2643/2690

Contact Arrangement

  • From 04 to 60 contacts
Applications

Applications

This 2mm pitch system is available in single or double rows of up to 60 contacts and with latching or stainless fixing hardware to ensure secure connection under high vibration environments like electronics prevalent in medical, aircraft control, in-flight entertainment, electrical power systems, optronics or multi-function displays.

Specialised polymide insulation tape materials can handle high temperature requirements to 125°C and above. The Microflex technology is a cost effective solution compared to other cable technologies and connection systems and offers the reliability required for MIL/Aero applications. Moreover, the assembly process is superior in terms of crimping and insertion speed.

Compared to crimping individual round wires, the crimping process that Nicomatic has developed is simultaneous for multiple contacts. The flat cable is crimped in one single operation and then the housing is assembled separately. This beats the normal ‘poke home’ contact-by-contact insertion into the housing, which is a much slower process.

Downloads

Downloads

Click here to download the Nicomatic micro-flex datasheet