M20-9991846 Harwin Connector (Other) In Stock
Harwin M20-9991846 is an 18-position single-in-line (SIL) straight through-hole plug connector with 3 mm pitch, 6.1 mm pin length, and tin termination finish. Features RoHS-compliant construction with 1.8 inch body length. Available from stock worldwide with global shipping.
- Manufacturer
- Harwin
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- M20-9991846 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
- 18-position single-in-line (SIL) straight through-hole plug with 3 mm pitch for reliable wire-to-board connections
- 6.1 mm pin length providing adequate PCB insertion depth and mechanical retention in standard through-hole pads
- Tin (Sn) over nickel (Ni) barrier termination finish ensuring excellent solderability and corrosion resistance
- RoHS-compliant construction meeting environmental regulations for global market deployment
- 1.8 inch (0.1 × 18 positions) body length in compact 0.1 × 0.1 inch cross-section for space-efficient layout
Applications
The Harwin M20-9991846 is a versatile 18-pin SIL through-hole plug connector used extensively in prototyping, wire harness termination, and PCB interconnect applications across industrial control, robotics, and consumer electronics designs. The 3 mm pitch and 6.1 mm pin length ensure reliable solder joint formation in standard PCB through-hole pads, making it suitable for panel wiring, sensor signal interfaces, and off-board cable termination. Its RoHS-compliant tin finish supports automated soldering processes used in both prototype assembly and small-series production builds.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.1 |
| Additional Feature | ROHS COMPLIANT |
| Body Breadth | 0.1inch |
| Body Depth | 0.1inch |
| Body Length | 1.8inch |
| 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 | 18 |
| 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 pitch and pin count does the Harwin M20-9991846 provide, and what connector family does it belong to?
The M20-9991846 belongs to the Harwin M20 connector family and provides 18 positions in a single-in-line (SIL) arrangement at a 3 mm pitch. This combination offers 18 signal or power connections in a 1.8 inch body length, suitable for wire harness and PCB interconnect applications where moderate pin density at 3 mm spacing is required.
What is the pin length of M20-9991846, and how does it affect PCB soldering reliability?
The M20-9991846 has a 6.1 mm pin length, which provides sufficient insertion depth into standard through-hole PCB pads and allows adequate solder fillet formation on the bottom side of the board. The tin over nickel barrier finish enhances solderability, ensuring reliable solder joints with both wave soldering and hand soldering processes used in prototyping and production assembly.
Is the M20-9991846 RoHS compliant, and what termination finish does it use?
Yes, the Harwin M20-9991846 is fully RoHS compliant, as indicated by the 'ROHS COMPLIANT' designation in its specifications. The termination finish is tin (Sn) with a nickel (Ni) barrier, which prevents tin diffusion into the base copper and ensures long-term solderability and joint reliability over the product's operational lifetime.
In which applications is the Harwin M20-9991846 SIL plug connector most commonly used?
The M20-9991846 is widely used in PCB-to-wire harness interfaces, sensor signal breakout boards, industrial control panels, and robotics motor driver boards requiring 18 individual signal or power connections at 3 mm pitch. Its through-hole straight mount with 6.1 mm pins makes it suitable for applications needing mechanical retention under cable strain, such as field-wired control cabinets and test fixture interfaces.
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