M55-7023242R Harwin Connector (Other) In Stock
M55-7023242R is a Harwin through-hole board connector with phosphor bronze male contacts, tin-nickel barrier termination, a 1 inch body length, and 0.064-0.072 inch hole mounting for reliable PCB board interconnects. Available from stock with worldwide shipping.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 36
- Lifecycle
- ACTIVE
- Datasheet
- M55-7023242R Datasheet PDF
- Category
- Connector
- Price
- From $1.0300(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 M55-7023242R?
- Phosphor bronze male contacts provide excellent spring resilience and long-term contact force retention for reliable board connections
- Tin with nickel barrier termination finish improves solderability and prevents tin-whisker growth for long-term PCB reliability
- 0.064-0.072 inch hole mounting range accommodates standard PCB drill tolerances without precision drilling requirements
- 1 inch body length with YTEOL of 9 years supports long-lifecycle industrial and defense program qualification needs
What is M55-7023242R used for?
M55-7023242R is used in through-hole board-to-board and backplane connector applications where phosphor bronze contacts provide reliable spring force and durable mechanical mating in demanding environments. It is well suited for industrial control systems, defense electronics, and telecommunications equipment requiring a proven through-hole board connector with long product lifecycle support. Its tin-nickel barrier termination ensures robust solder joints in wave-soldered PCB assemblies used in harsh-environment applications.
What are the specifications of M55-7023242R?
| YTEOL | 9 |
| Board Mounting Option | HOLE .064-.072 |
| Body Breadth | 0.283inch |
| Body Depth | 0.388inch |
| Body Length | 1inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | NOT APPLICABLE |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| Filter Feature | NO |
| Insulator Color | BLACK |
| 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 |
| Polarization Key | POLARIZED HOUSING |
| 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 |
| 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 M55-7023242R datasheet?
M55-7023242R Datasheet DownloadOfficial datasheet from Harwin
What are equivalent replacements for M55-7023242R?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why does M55-7023242R use phosphor bronze for its contacts and how does that benefit long-term connector performance?
Phosphor bronze is chosen for M55-7023242R contacts because it offers high spring resilience and excellent elastic memory, maintaining consistent contact force over thousands of mating cycles without permanent deformation. This material property ensures stable electrical contact resistance throughout the connector's service life, making it preferable to brass contacts in applications subject to repeated mating or mechanical vibration in industrial and defense environments.
What PCB hole size does M55-7023242R require and how does this affect PCB design tolerance planning?
M55-7023242R is designed for board holes in the 0.064 to 0.072 inch range, which corresponds to a standard PCB drill size that most board fabricators can hold within normal tolerance. This hole size range provides enough clearance to accommodate typical drill wander while still ensuring adequate through-hole contact engagement, simplifying PCB design rules and avoiding the need for tight-tolerance drilling specifications.
How does the YTEOL of 9 years for M55-7023242R support defense and industrial program lifecycle requirements?
The 9-year Years To End Of Life (YTEOL) rating for M55-7023242R gives program managers confidence that Harwin will continue to manufacture and supply this connector for at least 9 years, reducing the risk of mid-program obsolescence. For defense and industrial programs with 5-to-8 year production runs followed by sustainment phases, a 9-year YTEOL provides sufficient margin to source M55-7023242R without requiring a costly connector redesign during the program lifecycle.
For a wave-soldered industrial backplane, how does M55-7023242R's tin-nickel barrier termination compare to bare tin alternatives?
M55-7023242R's tin-with-nickel-barrier termination is superior to bare tin in wave-soldered backplane applications because the nickel barrier layer prevents tin diffusion into the phosphor bronze contact material, which can degrade solderability over time in storage. The nickel barrier also inhibits tin-whisker formation, which is a reliability concern in lead-free assemblies, making M55-7023242R a safer choice for long-life industrial backplane designs using RoHS-compliant soldering processes.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
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+ | $2.1200 | $2.12 |
| 10+ | $1.8010 | $18.01 |
| 100+ | $1.5303 | $153.03 |
| 900+ | $1.2100 | $1089.00 |
| 1575+ | $1.0700 | $1685.25 |
| 2100+ | $1.0300 | $2163.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
CLE-110-01-G-DV-TR
SAMTEC
Connector
CLE-110-01-G-DV-A-TR
SAMTEC
Connector
CLE-110-01-G-DV-A
SAMTEC
Connector
TSM-103-01-TM-DV
SAMTEC
Connector
TSM-103-01-T-SH
SAMTEC
Connector
TSM-103-01-T-DV
SAMTEC
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector