M52-040023W1045 Harwin Connector (Other) In Stock
Harwin M52-040023W1045 is a compact SMT board receptacle connector with gold-plated contacts, RoHS-compliant construction, and a 0.5 inch body length, providing reliable board-to-board or wire-to-board interconnect in high-reliability electronic assemblies.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- M52-040023W1045 Datasheet PDF
- Category
- Connector
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Gold-plated contact termination ensures low contact resistance below 20 mΩ and long mating cycle life
- Compact 0.5 inch (12.7 mm) body length fits dense PCB layouts in space-constrained enclosures
- RoHS-compliant, lead-free construction meets global environmental regulations for green electronics
- Receptacle shell style supports secure plug-and-socket mating with positive retention in vibration environments
Applications
The M52-040023W1045 is used in defence electronics, aerospace sub-assemblies, and industrial control boards where compact, reliable board-to-board interconnects are required in confined spaces. Its gold-plated contacts suit low-level analogue and digital signal lines where contact resistance stability is critical across thousands of mating cycles. Consumer robotics and medical device motherboards also benefit from the small 0.5 inch body and surface-mount termination for automated assembly.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.15 |
| Additional Feature | ROHS COMPLIANT |
| Body Breadth | 0.197inch |
| Body Depth | 0.098inch |
| Body Length | 0.5inch |
| Body/Shell Style | RECEPTACLE |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | NOT APPLICABLE |
| Contact Finish Termination | Gold (Au) |
| Contact Gender | MALE |
| Contact Material | BRASS |
| Contact Resistance | 20mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 1400VAC V |
| Durability | 300Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 1000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | POLYAMIDE |
| JESD-609 Code | e4 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.1inch |
| 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 Row Spacing | 2.54mm |
| Plating Thickness | FLASH inch |
| Rated Current (Signal) | 1A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 10 |
| 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 | Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for M52-040023W1045:
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Frequently Asked Questions
What body dimensions does the M52-040023W1045 have and how do they affect routing in dense PCB designs?
The M52-040023W1045 measures 0.5 inch (12.7 mm) long, 0.197 inch (5 mm) wide, and 0.098 inch (2.5 mm) deep, making it one of the more compact receptacle connectors in Harwin's M52 series. This small footprint allows designers to place multiple connectors within a 30 mm × 30 mm board zone, supporting modular daughter-card architectures without sacrificing connector density.
Why is gold contact termination on the M52-040023W1045 important for analogue signal integrity in instrumentation applications?
Gold plating maintains contact resistance typically below 20 mΩ throughout the rated mating life, preventing the oxide build-up that tin contacts develop after 500 or more insertion cycles in humid environments. For analogue instrumentation signals in the 0 mV to 100 mV range, a 50 mΩ contact resistance increase translates to measurable voltage error at source impedances above 1 kΩ, making the gold-finished M52-040023W1045 the correct choice for precision measurement front-ends.
When would a designer select the M52-040023W1045 over a standard 2.54 mm pitch pin-header for a compact aerospace module?
Aerospace modules subject to MIL-STD-810 vibration and shock testing require connectors with positive retention mechanisms rather than friction-fit pin headers; the M52-040023W1045's receptacle shell and gold contacts provide both mechanical locking and stable electrical contact under 10 G vibration loads. Its smaller 0.5 inch body and finer pitch also reduce the connector footprint by approximately 30% compared to a 10-pin 2.54 mm header, enabling higher-density packaging on weight-sensitive avionics PCBs.
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