TDK has expanded its CN series of low-resistance, soft-termination multilayer ceramic capacitors (MLCCs) with a 100-V, 10-µF X7R device in the 3225 format. Mass production is scheduled to begin in September 2026.
The new MLCC measures 3.2 x 2.5 x 2.5 mm and is intended for smoothing and decoupling in 48-V power lines, including those used in electrified vehicles.
As 48-V systems become more common, designers need higher-capacitance components that can support power conversion while limiting wiring mass and power loss.
Soft termination helps protect MLCCs from cracking under mechanical stress, but the added resin layer can increase equivalent series resistance (ESR). It’s designed to be optimized the resin electrode structure in the CN series so terminal resistance remains comparable with its standard products.
The new device provides twice the capacitance of TDK’s conventional capacitors in the same size. That can reduce the number of MLCCs needed in a given mounting area while supporting smaller designs and improved reliability.
The automotive version, CNA6P1X7R2A106K250AE, is AEC-Q200 qualified. It’s rated at 100 V with a capacitance tolerance of ±10%.
Filed Under: Power Electronics, Technology News