Electrolytic corrosion resistance of resistors
Electrolytic corrosions may occur when the thin film resistors made of the metal film are used in high humidity environment, resulting in disconnection. However, the metal film chip resistor RN73H , which has a special protective film inside, has improved moisture resistance compared to conventional products and is less susceptible to electrical damages. This product has superior moisture resistance compared to conventional products even under the condition of moisture resistance load life test for automotive applications which is considered to be severe.
Also, some general-purpose chip resistors such as RK73B use metal glaze for the resistive film, which has extremely high humidity resistance and does not cause electrolytic corrosion.
In addition, carbon film resistors such as CF, which are commonly used leaded resistors, may cause electrolytic corrosion on the carbon of the resistive element and lead to disconnection if used in a high humidity environment, as in the case of metal film resistors.
On the other hand, RCR, which uses metal glaze as a resistive element, has extremely high moisture resistance and is free from electrolytic corrosion.
Electrolytic corrosion resistant resistors
|| Product Name
||Metal Film Flat Chip Resistors (For Automotive, High reliability)
||Coat-Insulated Fixed Anti Surge Resistors