M55-6003242R Harwin Connector (Other) In Stock
Harwin M55-6003242R is a 32-position dual-row board-stacking connector with phosphor bronze female contacts, tin-over-nickel termination, and a compact 1-inch body. Designed for secure through-hole board-to-board stacking with 0.064-0.072 inch hole diameter compatibility. In stock worldwide with fast shipping.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- M55-6003242R Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Phosphor bronze female contacts with tin (Sn) over nickel (Ni) termination provide excellent spring-back characteristics and corrosion resistance for long-life board stacking connections
- 32-position dual-row configuration in a compact 1 inch body length enables high-density signal and power routing in stacked PCB assemblies
- Through-hole mounting with 0.064-0.072 inch hole diameter compatibility ensures broad PCB vendor interoperability and secure mechanical retention in vibration-exposed environments
Applications
The M55-6003242R is suited to board-stacking applications in industrial control systems, embedded computing platforms, and ruggedized electronic modules where reliable through-hole retention is essential. Its dual-row 32-position layout efficiently routes 32 signal or power channels between stacked boards in a compact 1 inch footprint. Phosphor bronze contacts with tin-over-nickel termination provide stable performance across repeated mating cycles in production and field environments.
Specifications
| YTEOL | 8.75 |
| Board Mounting Option | HOLE .064-.072 |
| Body Breadth | 0.165inch |
| Body Depth | 0.246inch |
| Body Length | 1inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | NOT APPLICABLE |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 25mΩ |
| Contact Style | SQ PIN-SKT |
| Durability | 500Cycles |
| Filter Feature | NO |
| Insertion Force-Max | 0.8N |
| Insulation Resistance | 10000000000Ω |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 5.5mm |
| Plating Thickness | 0.98u inch |
| Rated Current (Signal) | 1.2A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 32 |
| UL Flammability Code | 94V-0 |
| Withdrawl Force-Min | 0.2N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact material and finish does the Harwin M55-6003242R use, and why does it matter?
The M55-6003242R uses phosphor bronze contacts with tin (Sn) over nickel (Ni) termination. Phosphor bronze provides high spring-back retention force across mating cycles, while the nickel barrier prevents tin diffusion and maintains contact integrity in board-stacking assemblies operating across industrial temperature ranges.
How many positions and what body dimensions define the M55-6003242R footprint?
The M55-6003242R provides 32 positions in a dual-row layout within a 1 inch body length, 0.165 inch breadth, and 0.246 inch depth. This compact form factor is well matched to densely populated PCB stacks where allocating more than 1 inch to a single connector would conflict with surrounding components.
What hole diameter range does the M55-6003242R require, and how does that affect PCB design?
This Harwin connector requires through-holes with a diameter of 0.064 to 0.072 inch. Designing within this range is straightforward for standard PCB manufacturers and provides the mechanical grip needed to keep stacked boards aligned during operation in shock- or vibration-prone enclosures.
For a compact stacked PCB industrial module, how does M55-6003242R compare to a surface-mount board stacking connector?
The through-hole M55-6003242R offers superior mechanical retention compared to most surface-mount board stacking connectors, making it preferable for 32-position applications subject to vibration or mechanical stress. Its 1 inch body and dual-row layout deliver equivalent channel count to SMT alternatives while anchoring both boards securely through soldered through-hole pins.
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