The SMPC_154K0400DB1515 is a set of 150nF CBB Capacitors with a 15mm pitch manufactured by Winday. These capacitors are rated to carry a maximum of 400VDC, have a temerpature range of -55°C to +125°C, and are compliant with RoHS standards. They feature a through-hole mounting style, making them suitable for use in various electronic circuit assemblies.