18125E105MAT2A

The 18125E105MAT2A is a surface mount multilayer ceramic capacitor (MLCC) manufactured by Kyocera AVX. It offers a capacitance of 1 µF with a voltage rating of 50V DC. The capacitor uses Z5U dielectric, which is a general-purpose formulation suitable for limited temperature applications where small size and cost are important. Z5U ceramics exhibit wide capacitance variations under environmental and electrical conditions, but provide low ESL, low ESR, and excellent frequency response, making them ideal for decoupling applications.

This component is housed in an 1812 (4532 Metric) package with dimensions of 4.57mm length, 3.20mm width, and 1.02mm maximum thickness. It features plated nickel and solder terminations for reliable surface mounting. The capacitance tolerance is ±20%, and the operating temperature range is 10°C to 85°C.

Key electrical characteristics include a dissipation factor of 4% maximum, insulation resistance of 10,000 megohms minimum or 1000 MΩ·µF minimum (whichever is less), and dielectric strength of 250% of rated voltage for 5 seconds at 50 mA maximum current. The test conditions are 0.5 ± 0.2 Vrms at 1 KHz.

The part is supplied on 7-inch reels (packaging code 2). It is RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified. This capacitor is suitable for general-purpose applications, particularly decoupling and bypass circuits where only a minimum capacitance value is required.