CMF556K4900DHR6

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Through Hole Resistors (THRs) are one of the most essential components of electronic devices. The CMF556K4900DHR6 is an especially reliable and durable type of THR from Design House, used for providing protection against thermal and electrical overstresses. Its main application fields include Control Panel Power Supplies, Industrial Automation Systems, Automotive Applications/ Battery backup Protection, and Over Current/ Under voltage/ Over Temperature Protection.

The CMF556K4900DHR6 consists of three parts - a resistor, an insulator, and an encapsulated housing. The resistor is a high-resistance conductive material which can either be solid or liquid. The material used in this THR is a precious metal such as tin-lead, gold-palladium, nickel-chrome, or other materials depending on the required resistor characteristics. The insulator is an epoxy or ceramic which provides electrical isolation between the conducting materials, while the encapsulated housing is a heat and moisture resistant polycarbonate outer layer which also helps to protect the resistor from mechanical stresses.

The working principle of the CMF556K4900DHR6 is simple, yet effective. When a voltage is applied across the resistor, its resistance will oppose the flow of current, which will then be converted into heat due to the impedance of the resistor. This heat is dissipated through the encapsulated housing and the insulator. This way, the resistor can provide protection against thermal and electrical overstresses.

The CMF556K4900DHR6 is tested to stringent electrical safety standards such as the UL 94V-0, IEC 60950: 2009, and TUV-Sud EN 60065: 2003 Standards. Its thermal shock resistance is also certified to the IEC 60068-2-14 Standard. Furthermore, its long-term reliability has been proven by tests such as Humidity, Vibrations, Temperature shock and Thermal Cycling tests.

All these features make the CMF556K4900DHR6 an ideal choice for providing reliable thermal and electrical protection to any electronic device. Its resistance characteristics and safety standards make it suitable for any sensitive application, such as Control Panel Power Supplies, Industrial Automation Systems, Automotive Applications/ Battery backup Protection, and Over Current/ Under voltage/ Over Temperature Protection. With this THR, you can be assured of reliable and long-lasting protection.

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