Products Description
Silver Cadmium Oxide Contact, meaning the entire contact is made of a single silver-based alloy material rather than a composite welded structure, is primarily used in high-end relays, industrial control relays, precision switches, and changeover moving contacts. Its core advantages lie in its extremely low contact resistance, excellent conductivity, stable arc control capability, and long-term operational reliability.
Precision Manufacturing Process
Precision Cold Forging Process
Utilizing high-precision one-time cold forging ensuring consistent solid Silver Contact geometry and significantly improving material density and internal bonding strength.
Subsequent Heat Treatment
Precisely controlled high-temperature diffusion treatment further enhances the metallurgical bonding of silver molecules at the contact interface, giving the Silver contacts higher mechanical strength and fatigue resistance.
Precision Dimensional Control
Alloy Silver contacts with nominal diameters from φ0.8mm to φ25mm and riveting lengths from 2mm to 150mm are available, with tolerances strictly controlled within ±0.02mm to ±0.01mm depending on the precision level.
Key Electrical Performance Indicators
Ultra-low Contact Resistance
Pure electrical contacts ≤10μΩ (1A load, DC voltage drop <10mV); AgSnO₂ and other alloy contacts ≤15μΩ (surface oxide film effect considered).
Excellent Arc Resistance
Under AC 250V rated voltage, the arc duration of materials such as AgNi10 is ≤5ms, and the single arc energy is ≤0.5J (tested according to GB/T 5583 standard for Alloy Silver contacts).
Reliable Environmental Resistance
In an environment with H₂S concentration of 10ppm, after 500 hours of testing, the increase in silver contact resistance is <30% (verified by ASTM B809 vulcanization test).
Industry Application Cases
Industrial Automation
Solid Silver Contact, as the core contact of the relay in the output module of a high-end programmable logic controller (PLC), it withstands frequent start-stop signals, ensuring stable operation of the production line.
New Energy Vehicles
Silver contacts are used as a high-reliability relay in the Battery Management System (BMS), ensuring safe switching of the main circuit and meeting automotive-grade lifespan and vibration requirements.
Smart Grid Protection
Alloy Silver contacts integrated into smart meters and protection devices, the miniature switch performs precise current path switching and fault isolation.
High-end Home Appliances and Consumer Electronics
Used as a power control relay on the main control board of smart homes, providing safe, quiet, and long-life load switching.
contact us
If you would like to learn more about product performance, application solutions, or cooperation models, please feel free to contact us. We will provide one-on-one engineering support to assist in optimizing designs and ensure a long-term stable supply.
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