LLCR / Low Level Contact Resistance
LLCR (Low Level Contact Resistance) describes the electrical resistance at the contact surfaces of closed contacts, such as in connectors, switches, relays, or contact components.
In test engineering, LLCR is important for evaluating the quality of an electrical connection under low test currents and test voltages. This makes it possible to determine whether a contact is reliably conductive or whether contamination, oxide layers, material changes, or mechanical influences are increasing the contact resistance.
A low and stable LLCR value supports reliable signal transmission and reproducible measurement results. Especially for sensitive electrical contacts, low-level contact resistance is a key parameter for contact quality, process reliability, and Lifetime.
FAQ
LLCR stands for Low Level Contact Resistance and describes the low-level contact resistance at closed electrical contacts.
It measures the electrical resistance at the contact surfaces of a closed contact, such as in connectors, switches, or relays.
Measurement using low test currents and test voltages helps evaluate the actual contact condition without significantly affecting the contact point.
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