A useful magnetic charging cable request defines the device, interface, pin functions, electrical conditions, cable and environment—not just a photograph of a similar assembly.
Five groups of inputs to prepare
| Input group | Information to provide | What it determines |
|---|---|---|
| Device and structure | Application, space, drawings and mating direction. | Head envelope, cable exit and device fit. |
| Electrical | Voltage, continuous/peak current, polarity and pin functions. | Circuits, thermal behavior and voltage drop. |
| Cable | Input, length, diameter, jacket, flexibility and color. | Handling, bending and conductor requirements. |
| Environment | Moisture, corrosion, temperature and cleaning. | Materials, sealing boundaries and verification. |
| Project | Sample purpose, quantities, packaging and traceability. | Development, pilot and production scope. |
Specify magnetic behavior, not just a force number
Balance secure seating and retention with controlled release. Distinguish axial separation from side peeling and include cable load, device weight, pull direction and user action. Guides, stops and contact compression remain part of the mechanical design.
Define the assembled ingress requirement
State the head, receptacle and enclosure configuration, exposure fluid, test duration, pressure or depth where applicable, and acceptance criteria. A picture or cable-only claim does not establish a finished-device ingress rating.
Use five approval stages
- Review available inputs and feasibility.
- Approve the drawing, pin map and sample scope.
- Build samples and check structure and electrical function.
- Verify assembled performance and close findings.
- Release controlled documents, inspections and pilot-production requirements.
Send the available information first
If drawings are incomplete, provide samples, photographs, dimensions and a functional description for the initial review. Mark assumptions and missing inputs explicitly; final production still needs approved requirements.
Frequently asked questions
Can the review start without complete drawings?
Yes. Samples, photos and dimensioned sketches can support the first discussion. Approved documents are required before production release.
Is the maximum current enough to select the cable?
No. Include continuous load, peak duration, ambient conditions, thermal limits and the complete circuit path.
Can an old project specification be copied?
Use it as a reference only. The new device, interface, environment and acceptance criteria require their own review.
