M55-6025042R Harwin Connector (Other) In Stock
The M55-6025042R is a 50-position female board stacking connector from Harwin with phosphor bronze contacts, tin over nickel termination finish, and through-hole mounting for robust PCB-to-PCB stacking in industrial, embedded computing, and test equipment applications.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- M55-6025042R Datasheet PDF
- Category
- Connector
- Price
- From $2.3400(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of M55-6025042R?
- 50-position female board stacking connector for reliable PCB-to-PCB interconnection
- Phosphor bronze contacts with tin over nickel barrier for durable electrical performance
- Through-hole mounting in 0.064 to 0.072 inch holes for secure mechanical retention
- Compact body with 0.165 inch breadth and 1.45 inch length for high-density layouts
- Suitable for industrial temperature and vibration environments
- Compatible with standard Harwin M55 series mating connectors
What is M55-6025042R used for?
The M55-6025042R is designed for board stacking applications in industrial control systems, rugged embedded computers, and test and measurement equipment. Its female phosphor bronze contacts and through-hole mounting provide secure and vibration-resistant connections between stacked PCBs in environments requiring long service life and consistent electrical contact reliability.
What are the specifications of M55-6025042R?
| YTEOL | 8.75 |
| Board Mounting Option | HOLE .064-.072 |
| Body Breadth | 0.165inch |
| Body Depth | 0.537inch |
| Body Length | 1.45inch |
| 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 | 50 |
| 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 |
Where can I find the M55-6025042R datasheet?
M55-6025042R Datasheet DownloadOfficial datasheet from Harwin
What are equivalent replacements for M55-6025042R?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact material and termination finish does the M55-6025042R use for long-term reliability?
The M55-6025042R uses phosphor bronze contact material with a tin over nickel barrier termination finish. Phosphor bronze provides excellent spring resilience and contact force retention over thousands of mating cycles, while the nickel barrier prevents tin whisker migration for reliable performance in 50-pin stacking applications.
What hole diameter is required on the PCB for through-hole mounting of the M55-6025042R?
The M55-6025042R requires PCB through-holes in the range of 0.064 to 0.072 inch diameter. This through-hole mounting method provides strong mechanical retention compared to surface mount options, making it suitable for industrial and vibration-prone environments where the 50-position connector must stay securely fixed to the PCB.
Which industrial and embedded system designs are best served by the M55-6025042R board stacking connector?
The M55-6025042R is well suited for rugged embedded computing boards, industrial I/O expansion modules, and test fixture stacking applications. Its 50-position capacity, through-hole retention, and phosphor bronze contacts support designs requiring reliable PCB-to-PCB connections in environments with vibration, shock, or extended temperature cycling.
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Why Buy from FindMyChip
About Harwin
Harwin is a leading electronic component manufacturer. FindMyChip sources Harwin ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.4900 | $4.49 |
| 10+ | $3.8120 | $38.12 |
| 100+ | $3.2394 | $323.94 |
| 200+ | $2.4300 | $486.00 |
| 400+ | $2.3400 | $936.00 |
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