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Thick Layer Bimetallic Silver Contacts

Thick Layer Bimetallic Silver Contacts

1-Layer Material:Ag,AgNi,AgSnO2,AgSnO2ln2O3,AgCdO,AgZnO,etc

2-Base Material:Copper

3-Rivet Style:Copper Solid Contact,Bimetal Contact,Trimetal Contact

4-Surface Plating:Usually Silver-plated 1-20μm,Gold-plated and Nickel-plated 1-3μm,all as your requires

5-Application: Relays,Circuit Breakers,Switches,Contactor etc.

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Advantages of Silver Plated Contacts:

1-Silver is the best conductive conductor, and the conductivity of the substrate can be improved after silver plating;

2-Silver inherently has characteristics that make it resistant to microbes and bacterial growth; making items coated safer and more hygienic to use;

3-Silver is resistant to corrosion which helps to extend the life of the plated item;

4-Silver has the highest degree of optical reflectivity of any metal which makes it ideal for items such as medical lasers;

5-Silver is one of the least expensive precious metals and choosing it over other precious metals, such as gold or palladium, can save you quite a bit of money.

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How to deal with the large Electrical Contact Point resistance in the relay to make it smaller?


It can be judged based on the manufacturer's sample. Generally this value is less than 100mΩ. But if the relay is left for too long, the resistance value of the Silver Electrical Contact will increase, but this increase only needs to load a 1~3A current for a while. It cannot be regarded as a failure. When the contact passes the AC current, because the current will have a zero-crossing point (2 times a week), when the current crosses zero, its arc energy is the smallest, and it is easy to extinguish the arc and make the Electrical Contact Rivet shut off. Generally, the contacts of circuit breakers and relays The arc extinguishing is based on this principle. DC current has no zero-crossing point. It can only rely on increasing the arc resistance during the process of arc elongation, limiting the current, and extinguishing the arc. However, the distance that ordinary AC electric shocks can pull is limited, unless there are measures such as magnetic blowing. Otherwise, the ability to break DC is very limited, so the ability of AC contacts to break DC will be very small.

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Contact Information:

Mr.Terry Young (Sales Manager)

Apollo Electronic Components (Xiamen) Co.,Ltd 

Xiamen Apollo Stamping Welding Technology Co., Ltd


Add:225#,Jinshang Road,Huli District,Xiamen City,Fujian Province,China,361009

Tel&Fax: 0592-5765084, Mob/WhatsApp/WeChat: 0086-13859903038 ,QQ: 1260358661

Email: yfd@china-electronic-components.com

Web: www.china-electronic-components.com  , www.stamping-welding.com


Since 1990,professional in Silver Contact Rivet&Core&Screw Terminal for Relay&Switch&Contactor ect Stamping&Welding solutions !