51103-1200
2.50mm Pitch Wire-to-Wire and Wire-to-Board Housing, Positive Lock, 12 Circuits, Natural
Part Aliases: Molex 0511031200
The 51103-1200, a 12-contact Mini-Lock connector designed for reliable signal transmission. Constructed with durable polyester housing, this receptacle boasts a natural color for seamless integration. With a compact 2.5mm pitch and single row configuration, it offers space-saving connectivity for various applications. Certified by CSA (LR19980) and UL (E29179) for quality assurance, this RoHS-compliant connector ensures safety and environmental responsibility. Operating in a wide temperature range from -40 to 105 °C, it is suitable for diverse environments. Whether for wire-to-wire or wire-to-board connections, the 51103-1200 guarantees efficient performance, making it a versatile choice for your connectivity needs.
| Product Category: | |
| Manufacturer: | Molex |
| Manufacturer Part Number: | Molex 51103-1200 |
| Color: | Natural |
| Series: | 51103 - Mini-Lock |
| Connector Type: | Mini-Lock |
| Gender: | Receptacle |
| Housing Material: | Polyester |
| Number of Contacts: | 12 |
| Number of Rows: | 1 |
| Pitch: | 2.5 mm |
| Material: | Polyester |
| Keying: | No |
| Packaging: | Bag |
| Operating Temperature Range: | -40 - 105 °C |
| Circuit Application: | Signal |
| Connector System: | Wire to Board, Wire to Wire |
| CSA Agency Certification: | LR19980 |
| UL Agency Certification: | E29179 |
| Glow Wire Capable: | No |
| Stackable: | No |
| Material Flammability Standard: | 94V-0 |
| Part Aliases: | 0511031200 |
| SKU: | MOL51103-1200 |
Environmental Initiative Details
| Environmental Initiative: | RoHS |
|---|---|
| Compliant: | Unknown |
| Date of this Information: | Unknown |
| Notes: |
Product Change Notice
| Effective Date | Description of Change | Download |
|---|---|---|
| 10/31/2025 | 515981 - Obsolete no replacement. LTB 6/25/25 LTS 9/25/25 | Download |
| 10/30/2025 | 515990 - Obsolete some with direct replacement & some with differences. LTB 6/25/25 LTS 9/25/25 | Download |
| 08/31/2021 | 510250 - Equipment Transfer, Production Transfer or Rearrangement. transfer from Molex Gwangju plate in Korea to Ansan plant in Korea due to Gwangju plant closure . molex has decided to consolidate its Ansan and Gwangju plants into a single integrated site in Ansan Plant. | Download |
| 10/15/2019 | 507130 - Equipment Transfer, Production Transfer or Rearrangement. This letter is to inform you that production of the part(s) identified in this notice is being moved to a different production location. No changes will be made to the product as a result of this move. | Download |
| 02/01/2016 | GCM 10728471 - Tooling / Equipment Transfer. The purpose of this letter is to inform you that 511030600, 511030800, 511030900, 511031000, 511031200, 50375023, 351550300 and 355070400 will be transferred from Molex Korea Ansan plant to Molex Korea Gwangju plant to build a more efficient production and solve capability flexibility of Ansan plant. These products are not affected by transferring of manufacturing site due to no risk as the same tool and material spec. will be used in Gwangju plant. The mass production start date at Gwangju plant is scheduled on February 1 of 2016. Implementation Date may be changed due to customer demand and production situation. | Download |
| 04/12/2015 | GCM 10680930 - Tooling / Equipment Transfer. | Download |