5-Pin Magnetic Connector | Promax Pogo Pin

How to Choose the Right 5-Pin Magnetic Connector

A 5-pin magnetic connector adds a fifth contact to a power-plus-data layout — typically used for shielding, an extra sense line, or balanced differential pairs. Our 5-pin parts also carry the highest standard voltage and current ratings in the magnetic catalog. Use the steps below to lock in your specification.

1. Decide how the five pins map to your design. Common layouts split as two power pins, two data pins, and one shield or sense line. Other designs use three power pins in parallel for higher current, plus two data lines. Tell us your pin map and we’ll match contact pitch and shielding.
2. Match the voltage rating to your application. Standard 5-pin parts handle 30V per contact — higher than the 12V baseline on most of our catalog. That makes them a fit for EV accessories, 5G infrastructure, and smart-lock electronics. We offer custom builds for higher voltages.
3. Confirm the per-contact current capacity. Standard 5-pin parts handle up to 5A per contact. Paralleling three power pins delivers 15A of total current capacity. For fast-charge applications that need 25A+, talk to our engineers about contact diameter and plating adjustments.
4. Verify contact resistance against your power and signal budgets. Standard 5-pin parts hold contact resistance at 30 mΩ or below. That’s tighter than the 50 mΩ found on most multi-pin variants and keeps power loss low even at 5A. It also supports cleaner data on the signal pairs.
5. Check the temperature and humidity range. Standard 5-pin parts run from –25°C to +85°C across 10%RH to 90%RH. Extended-temperature variants are available for outdoor 5G equipment and EV charging stations exposed to cold conditions.
6. Confirm the mechanical life rating fits your duty cycle. Standard 5-pin connectors are rated for 10,000 mating cycles. For 5G base station maintenance or EV charging accessories, the mate frequency is usually low, so cycle life rarely becomes the limiting factor. Custom cycle ratings are available.
7. Pick the housing geometry, magnet grade, and certifications. The N52 magnet keeps the holding force strong in compact housings. Standard contacts use Gold plating over a copper alloy. Promax holds ISO 9001, ISO 14001, ISO 45001, and IECQ QC080000, and all 5-pin parts are RoHS-compliant.

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