Proving the Business Case for the Internet of Things

Automotive grade capacitors suit smart meters

Steve Rogerson
November 26, 2014

At Electronica in Munich this month, Kemet introduced automotive grade film capacitors. The F862 metallised polypropylene film class X2 series is for safety applications subject to harsh environmental conditions such as high humidity.

Available in capacitances up to 4.7µF and rated voltages up to 310V AC, the RFI X2 capacitors are for noise filtering and peak voltage protection when connected parallel to the mains, or in series such as in a smart meter.

Design enhancements resist traditional capacitance-loss mechanisms, allowing for long-term high stability.

Additionally, they meet AEC-Q200 qualification requirements, passing 1000 hours life testing at 85ËšC with 85% relative humidity at rated voltage of 240V AC.

Typical usage includes connection in series with the mains, capacitive power supplies and energy meters where harsh conditions such as high humidity are of concern.