Ag/AgCl Ear Clip Electrode Cable for Biosignal Acquisition & Device Integration

This reusable Ag/AgCl ear clip electrode cable is designed for EEG, EMG, ECG, neurofeedback, physiological signal acquisition and compatible biosignal device development. The compact ear clip provides a convenient electrode interface at the earlobe, while the silver/silver chloride contact is suitable for applications where a stable electrode-to-skin connection is required.

A 2.54mm Dupont connector is used on the equipment side, making the cable particularly suitable for prototype platforms, signal acquisition boards, research electronics and embedded biosignal modules. The simple connector architecture also makes it easier for engineering teams to evaluate pin definitions and integrate the electrode into new hardware during early-stage product development.

Why Use an Ag/AgCl Ear Clip Electrode?

Silver/silver chloride electrodes are widely used in biopotential measurement and physiological signal acquisition systems. In this design, the Ag/AgCl contact is integrated into a reusable ear clip so that the electrode can be positioned on the earlobe without requiring a disposable adhesive electrode for every connection.

Depending on the complete measurement system, an ear electrode may be used as a reference, ground or signal electrode. The actual electrical function is determined by the customer's acquisition circuit, channel configuration and pin definition rather than by the ear clip itself.

This makes the cable suitable for engineers developing EEG headsets, neurofeedback equipment, electrophysiological acquisition modules, wearable biosignal products and laboratory research hardware where a reusable ear-position electrode is required.

2.54mm Dupont Interface for Research, Prototype & Embedded Hardware

The 2.54mm Dupont interface provides a straightforward connection method for development boards, acquisition electronics and embedded hardware. For prototype projects, this allows engineering teams to connect the ear electrode directly to the appropriate signal input without adding a large medical connector at the early validation stage.

However, connector size alone does not determine compatibility. Dupont connector gender, number of positions, wire sequence, polarity and signal assignment should be confirmed according to the target PCB or acquisition module before the cable design is finalized.

For production equipment, the Dupont interface can also be replaced or integrated into a more complete EEG & EMG electrode and cable solution according to the final device architecture.

Key Design Details for Custom Biosignal Electrode Cables

Electrode contact: Ag/AgCl contact structure and ear-clip geometry according to the intended device and wearing method.

Device interface: 2.54mm Dupont male or female connector, housing configuration and pin assignment.

Signal connection: conductor arrangement, channel definition and electrical continuity according to the approved wiring diagram.

Cable construction: cable length, conductor specification, shielding, jacket material and strain-relief structure.

System integration: matching with EEG, EMG, ECG, neurofeedback, wearable or other compatible biosignal acquisition hardware.

From Prototype Electrode Cable to OEM Production

For new biosignal devices, electrode cable development often begins with a simple prototype connection but later needs to be adapted for the final product. Cable routing, connector structure, shielding, electrode position, strain relief and assembly method may all change when the device moves from engineering validation to production.

Heymed Medical can develop the cable from customer drawings, PCB pin definitions, acquisition module specifications, existing samples or device interface information. Engineering review can include connector selection, pinout confirmation, cable structure, electrode configuration and prototype verification before volume manufacturing.

Prototype assemblies can be checked for connector fit, pin-to-pin continuity, electrode structure, cable dimensions and workmanship according to the approved project requirements, helping provide a controlled transition from development samples to repeatable OEM production.

Related Ear Electrode & EEG Connection Solutions

Different biosignal and ear-electrode devices require different contact materials, connector structures and electrical definitions. The following products provide alternative interface options for related development projects.

Custom Gold-Plated 4-Pin & 6-Pin EEG Connector →
A configurable multi-pin connector for EEG caps, EEG headsets and compatible biosignal acquisition equipment.

DC 2.35mm Male to tVNS/taVNS Ear Electrode Cable →
A different ear-electrode architecture using dual conductive silicone contacts for compatible tVNS and taVNS device integration.