M20-9991246 Harwin Connector (Other) In Stock
Harwin M20-9991246 is a 12-position dual-row receptacle board connector with 0.1 inch pitch, tin-over-nickel contact finish, and RoHS-compliant construction. From $0.50 in stock with worldwide shipping.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- M20-9991246 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
- 12-position dual-row receptacle with 0.1 inch (2.54 mm) pitch for reliable PCB-to-PCB or wire-to-board interconnection
- Tin (Sn) over Nickel (Ni) barrier contact finish providing corrosion resistance and long mating cycle durability
- RoHS-compliant lead-free construction meeting global environmental compliance standards for industrial and consumer electronics
Applications
The Harwin M20-9991246 receptacle connector is well suited for PCB-to-PCB stacking and wire-to-board applications in industrial control systems, test and measurement equipment, and embedded computing modules. Its 0.1 inch pitch dual-row layout supports dense signal routing in space-constrained designs. The tin-over-nickel contact finish makes it a reliable choice for prototyping boards, development kits, and production assemblies requiring RoHS compliance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.1 |
| Additional Feature | ROHS COMPLIANT |
| Body Breadth | 0.1inch |
| Body Depth | 0.1inch |
| Body Length | 1.2inch |
| Body/Shell Style | RECEPTACLE |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | NOT APPLICABLE |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | BRASS |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 30mΩ |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 750VAC V |
| Durability | 50Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 1000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | POLYAMIDE |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.1inch |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 1 |
| Number of Rows Loaded | 1 |
| Option | GENERAL PURPOSE |
| Rated Current (Signal) | 3A |
| Reference Standard | UL |
| Terminal Length | 0.118inch |
| Terminal Pitch | 2.54mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 12 |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pin pitch and row configuration of the M20-9991246?
The M20-9991246 features a 0.1 inch (2.54 mm) pitch dual-row receptacle layout with 12 positions total, offering 6 contacts per row. This standard pitch is compatible with a wide range of 0.1 inch pitch headers and PCB footprints commonly used in industrial and embedded system designs.
Which embedded system or development board designs benefit from using the M20-9991246 at 0.1 inch pitch?
Development boards, Arduino-compatible shields, and industrial embedded modules benefit from the M20-9991246's 0.1 inch (2.54 mm) dual-row 12-position layout. It fits standard 2x6 header footprints with a body length of 1.2 inch, enabling straightforward integration into prototype and production PCB designs requiring reliable board-to-board or wire-to-board connections.
How does the tin-over-nickel contact finish affect the mating reliability of the M20-9991246?
The tin (Sn) over nickel (Ni) barrier contact finish on the M20-9991246 provides a low-contact-resistance interface, typically under 30 mΩ initial contact resistance, and resists oxidation over hundreds of mating cycles. The nickel barrier layer prevents tin whisker migration and diffusion, ensuring stable electrical performance across operating temperatures from -40°C to +85°C.
When is the M20-9991246 a better procurement choice than a surface-mount equivalent?
The M20-9991246 through-hole receptacle is preferred over surface-mount equivalents when mechanical retention strength is critical, as through-hole solder joints withstand higher mating forces than SMT pads. With a body breadth and depth of 0.1 inch and 12 positions at 2.54 mm pitch, it suits hand-assembly prototyping and rugged applications where repeated connector mating cycles exceed 50 insertions.
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