Jimu Zhilian
DESIGN CHECKLIST · 5 MIN READ

What must be confirmed before developing a magnetic cable assembly

Magnetic force is only one part of a reliable magnetic connection.

Pin layout and polarity

Define the number of contacts, pitch, current path, signal path and protection against reverse or offset connection. Pogo-pin spring force and travel must match the mechanical design.

Magnetic force and user experience

Too little force causes unstable contact; too much force makes separation difficult or stresses the housing. Target force should be measured on the complete product, not the magnet alone.

PCB and protection

The connector may require a PCB for identification, protection, LEDs or control. PCB size, copper area, components and heat dissipation must fit the housing.

Reliability verification

Typical checks include contact resistance, temperature rise, short-circuit behavior, cycle life, pull direction and contamination sensitivity.

Provide these inputs

  • Mechanical drawing or reference sample
  • Pin definition and electrical load
  • Target magnetic force
  • Connection frequency and environment
  • Housing, logo and packaging requirements