12V Magnetic Connector Applied to Hearing Aids

12V Magnetic Connector Applied to Hearing Aids

As the aging population accelerates, the global number of hearing aid users continues to grow. In hearing aid product design, the charging connection module must not only be convenient for users to operate, but also able to withstand rainwater, sweat, oil, dust contamination, and the challenges of compact space constraints.

What are magnetic connections used in hearing aids?

A magnetic connector uses built-in magnets to drive spring-loaded pogo pins into precisealignment with the female socket contacts - without any manual guidance. This mechanismenables blind-plug magnetic docking: the user simply brings the charger near the device, and the magnetic force does the rest, even in the dark or for users with limited vision.

Why choose a 12V magnetic connector 

The 12V design voltage is compatible with mainstream hearing aid charging systems on the market and provides sufficient input headroom for charging management ICs. As a professional pogo pin manufacturer, we offer full-range customization from 3.3V to 250V.

Features of the 12V Magnetic Connector

1. Magnetic Automatic Alignment – one-hand convenient operation

Among hearing aid users, more than 70% are aged 65 and above. Elderly users often face reduced motor skills, declining vision, and hand tremors caused by conditions such as Parkinson's disease. Traditional plug-in charging interfaces are difficult to operate and can make charging a frustrating experience.

The magnetic connector uses precisely calibrated magnetic force to enable automatic alignment and blind-mate charging-no need for visual alignment or applied force. Charging can be completed easily with one hand.

One-hand blind mating – Magnetic force automatically guides alignment, allowing operation without visual confirmation

Precisely tuned magnetic strength – strong enough to ensure stable connection, while the detachment force remains within a range that elderly users can easily handle

Elder-friendly design – complies with WHO accessibility recommendations for assistive hearing devices

2. Gold-Plated Female Socket

The hearing aid microenvironment subjects connectors to constant perspiration (NaCI), skingrease (sebum), and - in coastal or tropical climates - salt spray. Our gold-plated female socketprovides chemically inert, electrochemically stable protection: IEC 60068-2-11 salt spray certified,Vickers hardness ~200HV, and contact resistance 30m with < 5mQ drift after 10,000 mating

Cycles

3. IP68 Waterproof & Dustproof

IP68 rating (EC 60529) certifies protection against continuous immersion at manufacturer-specified depths - exceeding IP67's 1m/30-min limit. Our dual-seal approach uses injectionmolding for the primary body (eliminating adhesive failure points) combined with flexibleTPu/silicone overmolding around the interface, maintaining hermetic integrity through thousandsof flex cycles. Validated under IEC 60529 with 1.5m / 30min immersion.

The IP68 waterproof magnetic connector is validated for daily rinsing, alcohol wipe

disinfection, accidental swimming submersion, high-humidity storage, and UV-C sterilization box

compatibility.

4.Compact size – highly integrated design, suitable for precision products.

Pogo pin pitch: 2.5mm, designed for integration in compact hearing aid housings. The tolerance accuracy is controlled within ±0.01mm, ensuring that magnetic alignment precision and IP sealing reliability are achieved simultaneously.

Professional Background

1. Our engineering team has over 15 years of experience in the R&D and mass production of magnetic connectors and Pogo Pin solutions, providing customized solutions for medical devices, hearing aids, and consumer electronics OEM customers in more than 40 countries worldwide.

2. Our product development strictly follows international standards including IEC 60529 (IP protection rating), IEC 60512 (connector durability), IEC 60068-2-11 (salt spray testing), and ISO 10993 (biocompatibility for medical devices). Our manufacturing facility is ISO 9001 certified, and all products comply with RoHS 2.0 and REACH environmental directives.

3. Before shipment, all products undergo 100% electrical continuity testing, sample-based IP68 waterproof testing, and salt spray aging tests. Full test reports are provided with every shipment.

Frequently Asked Questions

Q1: Does the magnetic connector cause EMI to hearing aid electronics?

A1: We manufacture qualified shielded magnetic connectors. Under normal use, they do not affect hearing aids. Only strong magnetic fields, unshielded designs, or very close proximity during wear may potentially cause interference.

Q2：Is the gold-plated socket safe for users withmetal sensitivities?

A2: Gold biocompatibility is validated per ISO 10993-5 cytotoxicity testing. Goldis internationally recognized as biocompatible. Female socket contacts do not contact skinduring normal use; housings are available in medical-grade PC and TPU for sensitive-skinapplications.

Q3: How can I verify the IP68 certification validity?

A3: Weprovide IEC 60529 IP68 test reports issued by third-party certification bodies (SGS, TUV),including full test condition records (immersion depth, duration, thermal cycling). All reports aresuitable for regulatory submission documentation.

About Us – Start a Partnership

Whether you are a buyer or an R&D engineer for a hearing aid brand, if you are still looking for a reliable supplier of magnetic connectors, please contact us today!

Our application engineering team is always ready to provide technical consultation, custom solution design, and sample request services.