0402B223K250CT

• 22nF Capacitance with 10% Tolerance
• 25V DC Voltage Rating
• X7R Class 2 Ceramic Dielectric
• -55C to 125C Operating Temperature Range
• 0402 (1005 metric) case, 1mm by 500um
• Lead-free, RoHS compliant, Supplied in Tape and Reel

The Walsin Technologies 0402B223K250CT is a 22nF multilayer Ceramic Capacitor rated at 25V DC with a 10% tolerance, using an X7R dielectric in an 0402 (1005 metric) case. X7R is a Class 2 ceramic held within 15% across -55C to 125C, and like all Class 2 formulations its effective capacitance falls as DC bias is applied. The chip measures 1mm by 500um, is lead-free and RoHS compliant, and is supplied in tape and reel. Note the record's REACH SVHC status is recorded as Unknown and no lifecycle status is held at all, so a substance declaration and an availability check should accompany the order.

22nF sits between the 100nF decoupling default and the small Class 1 values used for timing, and it is specified where a moderate, reasonably stable capacitance is needed rather than raw bulk. Typical positions are snubber and RC damping networks across switching nodes and relay contacts, EMI filtering on signal and supply lines, soft-start and enable timing where absolute accuracy is not critical, feedback compensation, and AC coupling in audio and low-frequency analog paths. The X7R dielectric covering -55C to 125C makes it usable in automotive and industrial builds where an X5R part would be out of specification above 85C. The 25V rating provides real derating margin on a 12V rail, where a 16V part would lose more of its nominal value to DC bias.