Choosing the right MOLEX wire harness can be difficult when your equipment requires compact connectors, stable electrical performance, and customized wiring. For OEM applications, a standard cable may not match your pin count, wire gauge, length, or installation space. JYE Technology provides custom wiring harness solutions based on Molex 51021 and 51047 connectors, using a 1.25mm pitch design with 2–15 pin options. You can also specify wire length, wire color, and compatible wire materials to match your assembly requirements. With a 5,000㎡ manufacturing facility, 100+ professionals, and more than 15 years of experience, Shenzhen JYE Technology Co., LTD supports customized harness production for appliance, automotive electronics, industrial, medical, and other applications.
Why Choose a MOLEX Wire Harness for Compact Applications?
A 1.25mm pitch connector helps you save installation space while maintaining a practical connection solution for compact electronic assemblies. The Molex 51021 and 51047 series can be configured as male and female connector combinations, making them suitable for applications where space and wiring flexibility matter.
JYE Technology can configure the harness according to your technical requirements, including:
- 2–15 pin configurations for different circuit requirements
- 32–26AWG wire for compact electronic assemblies
- Custom wire length according to your equipment layout
- Custom wire color for easier circuit identification
- UL-certified wire for applications requiring recognized wire specifications
- Silicone, PVC, Teflon, and XLPE wire options
- Free design drawings to support OEM development
The rated current is 1.0A, while the specified contact resistance is 20MΩ MAX and insulation resistance is 100MΩ MIN. The product also supports a withstanding voltage of 200V AC/DC and a temperature range of -20°C to +105°C, based on the supplied specifications.
Molex 51021 51047 Wire Harness Specifications
When you compare a custom harness with a generic cable, the key difference is how closely the assembly matches your equipment.
| Specification | Molex 51021 / 51047 Wire Harness |
|---|---|
| Connector type | Male / Female |
| Pitch | 1.25mm |
| Pin options | 2–15 pins |
| Rated current | 1.0A |
| Applicable wire gauge | 32–26AWG |
| Contact resistance | 20MΩ MAX |
| Insulation resistance | 100MΩ MIN |
| Withstanding voltage | 200V AC/DC |
| Temperature range | -20°C to +105°C |
| Wire length | Customizable |
| Wire color | Customizable |
| Wire certification | UL |
| Design service | Free design drawings |
This configuration makes the harness suitable when you need a custom Molex wire harness rather than an off-the-shelf cable with fixed dimensions.
Where Can You Use a Custom Molex Wire Harness?
A compact 1.25mm pitch harness can support many low-voltage electronic assemblies where controlled wiring and connector compatibility are important.
Appliance and Consumer Electronics
For appliances, you may need different wire lengths or pin configurations because the harness must fit around internal components. JYE Technology categorizes this product under Appliance Harness and Wire Harness, making it relevant to customized internal appliance connections.
Automotive Electronics and Industrial Equipment
JYE Technology has experience serving automotive electronics and industrial connection markets. Its manufacturing capabilities include automated wire cutting and crimping, while its broader product portfolio covers applications such as on-board camera harnesses and industrial wiring.
Medical and Drone Equipment
The company also works across medical and drone applications. Its company information states that it supports medical equipment with ISO 13485-related requirements and produces wiring solutions for drone power systems.
For these applications, you can define the wire length, pin count, wire gauge, and connector configuration before production.
How to Order a Custom MOLEX Wire Harness
You can simplify the customization process by preparing the technical information before requesting a quotation.
- Confirm the connector: Specify Molex 51021, 51047, or the required male/female combination.
- Define the pin count: Select the required configuration from 2 to 15 pins.
- Specify the wire: Provide your preferred 32–26AWG gauge, insulation material, color, and certification requirements.
- Set the cable length: Give the required finished wire length and any tolerance requirements.
- Share your drawing: If you have an existing drawing, provide it for review; JYE Technology also offers free design drawings.
- Confirm production requirements: Review samples, specifications, and production details before placing the bulk order.
This approach reduces the risk of receiving a harness that does not fit your assembly or wiring layout.
Why Work With JYE Technology?
Shenzhen JYE Technology Co., LTD was established in 2010 and focuses on custom wire harnesses and connectors. Its manufacturing operation covers approximately 5,000㎡ and employs more than 100 professionals.
The company states that its products comply with RoHS, UL, CE, and REACH requirements. Its production capabilities include automatic wire cutting and crimping, laser marking, LVDS cable processing, and BMS harness production.
JYE Technology also reports an average daily production capacity of 50,000 lines with a stated yield rate of ≥99.5%. Its location in Shenzhen provides access to the electronics supply chain and supports shorter material sourcing and production cycles.
FAQ
1. What pin options are available for the Molex 51021 and 51047 harness?
The product supports 2–15 pin configurations, allowing you to select a harness according to your circuit and equipment requirements.
2. Can I customize the wire length and color?
Yes. JYE Technology provides custom wire length and wire color, along with different wire material options such as Silicone, PVC, Teflon, and XLPE.
3. Can JYE Technology help with the wiring harness design?
Yes. JYE Technology offers free design drawings, which can help you develop a customized harness based on your connector, pin count, wire gauge, and dimensional requirements.
Conclusion
If you need a compact connector assembly with flexible configuration options, the MOLEX wire harness based on Molex 51021 and 51047 connectors provides a practical solution for customized electronic wiring. With 1.25mm pitch, 2–15 pin options, 32–26AWG wire compatibility, UL wire options, and customizable length and color, you can adapt the harness to your equipment instead of redesigning the equipment around a fixed cable.
Get Your Custom Harness Design
Send JYE Technology your connector model, pin count, wire gauge, required length, wire color, and application requirements. The team can review your specifications and provide free design drawings to help you move from prototype requirements to production.
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