Product Overview
A range of 1.27mm (0.05) pitch connectors, male and female shrouded connectors for board-to-board and cable-to-board connection. All connector part numbers start with the series code M55. The socket connectors are twin-beam female contacts, and these mate to solid pin male connectors. All board mount connectors are double row and Surface Mount, supplied in tape-and reel packaging (pick-and-place caps included when applicable). All connector housings include location pegs for additional placement assistance on the PCB, and SMT side tabs for additional peel strength and strain relief when soldered down. Both male and female connectors are available in Vertical or Horizontal orientations, with 3 height options on the Vertical connectors. The range can therefore be used for parallel board-to-board (mezzanine layouts), right-angle motherboard-to-daughterboard, or co-planar / edge-to-edge layouts. All housings include polarisation within the design. All IDC female connectors are double row, available as individual connectors or horizontally mounted to a PVC ribbon cable. Connector housings feature a latch for quick and secure mating to the male half.
Brand Harwin
Series Archer Kontrol (M55 Series)
Pitch 1.27mm (0.05)
Date Issued March 2023
Connector Type Male and Female Shrouded Connectors
Contact Type Twin-beam female contacts, Solid pin male connectors
Mounting Type Surface Mount (Board Connectors), Horizontal (IDC Cable Connectors)
Packaging Tape-and-reel
Housing Features Location pegs, SMT side tabs, Polarization, Latch (cable connectors)
Orientation Options Vertical, Horizontal
Application Layouts Parallel board-to-board (mezzanine), Right-angle motherboard-to-daughterboard, Co-planar / edge-to-edge
| Specification | Description | PCB Connectors (M55-6XX, M55-7XX) | Cable Connectors (M55-8XX) |
| Current Rating | Max per contact | 1.2A | 0.5A |
| Voltage Rating | AC | 100V |
| Dielectric Withstanding Voltage | (EIA-364-20C, Method B) | 500V for 1 minute |
| Contact Resistance | Initial (EIA-364-23B) | 25m max |
| Contact Resistance | After Conditioning (EIA-364-23B) | Additional 10m max variation |
| Insulation Resistance | (EIA-364-21C) | 10G min | 1G min |
| Operating Temperature Range | | -55C to +125C | -20C to +105C |
| Thermal Shock | (EIA-364-32C, Condition III) | -55C to +125C, 10 cycles, 30 mins each extreme | -20C to +105C, 10 cycles, 30 mins each extreme |
| Temperature Life | (EIA-364-17B, Method A) | +125C, 96 hours | +105C, 96 hours |
| Humidity | (EIA-364-31B, Condition A) | 90-95% RH at +40C for 96 hours |
| Salt Spray | (EIA-364-26B) | 24 hours at +35C, 5% concentration |
| Solderability | (EIA-364-52) | +2455C for 50.5 seconds | N/A |
| Soldering Heat Resistance | | +260C for 10 seconds max | N/A |
| Durability | (EIA-364-09C) | 500 operations |
| Insertion Force | Initial per contact (EIA-364-13C) | 0.8N max |
| Withdrawal Force | Per contact (EIA-364-13C) | 0.2N min |
| Contact Retention in housing | (EIA-364-29C) | 3.9N min per contact |
| Vibration | (EIA-364-28D, Condition IV) | 10-2000Hz, 20G peak, 1.52mm amplitude, 12 hours total |
| Application | Female Connector Part Prefix | Male Connector Part Prefix | Mating Height (fully mated) | Mating Height (with 1.5mm separation) |
| Vertical PCB to Vertical PCB | M55-600XX42R | M55-700XX42R | 8.00mm | 9.50mm |
| Vertical PCB to Vertical PCB | M55-601XX42R | M55-700XX42R | 10.80mm | 12.30mm |
| Vertical PCB to Vertical PCB | M55-602XX42R | M55-700XX42R | 15.40mm | 16.90mm |
| Vertical PCB to Vertical PCB | M55-600XX42R | M55-701XX42R | 9.50mm | 11.00mm |
| Vertical PCB to Vertical PCB | M55-601XX42R | M55-701XX42R | 12.30mm | 13.80mm |
| Vertical PCB to Vertical PCB | M55-602XX42R | M55-701XX42R | 16.90mm | 18.40mm |
| Vertical PCB to Vertical PCB | M55-600XX42R | M55-702XX42R | 11.10mm | 12.60mm |
| Vertical PCB to Vertical PCB | M55-601XX42R | M55-702XX42R | 13.90mm | 15.40mm |
| Vertical PCB to Vertical PCB | M55-602XX42R | M55-702XX42R | 18.50mm | 20.00mm |
| Horizontal PCB to Horizontal PCB | N/A | 15.80mm | 17.30mm |
| Cable to Board | M55-800XX42-XXXXA or M55-820XX42 | M55-700XX42R | 13.95mm | N/A |
| Cable to Board | M55-800XX42-XXXXA or M55-820XX42 | M55-701XX42R | 15.45mm | N/A |
| Cable to Board | M55-800XX42-XXXXA or M55-820XX42 | M55-702XX42R | 17.05mm | N/A |
Materials
Contacts: Phosphor Bronze, Gold finish on contact area, 100% Tin on terminations, all over Nickel
Housing & Cap: LCP, UL94V-0
SMT Side Tabs: Brass, 100% Tin over Nickel finish
Latch Cover (cable connectors): PA66, UL94V-0
Spring (cable connectors): Stainless Steel
Cable (cable assemblies): PVC, UL2678, 30AWG
Connector Misalignment
Refer to Appendix 2 in the source document for visual representation of misalignment tolerances (float) and angles for single connector assembly.
Contact Numbering
Refer to Appendix 3 in the source document for contact numbering diagrams for Female and Male Connectors.
Cable Assembly Orientations
All M55-800XX42-XXXXA cable assemblies are supplied in the orientation shown in Appendix 4. Cable assemblies are female-to-female and use cable connectors M55-820XX42 on both ends. Wiring is direct contact-to-contact (e.g., Contact a1 to Contact a1).
