







- Stock: In Stock
- Model: X2 103K 275V P15
- Weight: 1.50g
- Dimensions: 18.00mm x 5.00mm x 11.00mm
- SKU: 4038
Premium Interference Suppression and EMI Filtering
The 0.01uF Class X2 Safety Capacitor (also designated as 10nF or code 103K) is an essential passive component engineered for across-the-line AC mains applications. Formulated with a high-grade metallized polypropylene film (MKP) dielectric, this capacitor suppresses high-frequency electromagnetic interference (EMI) and radio frequency interference (RFI) before it reaches sensitive downstream electronics. Rated for alternating current operational voltages up to 275VAC and 305VAC, it effectively maintains clean power lines in consumer and industrial power systems.
Self-Healing Dielectric and Safety Standards Compliance
Designed in accordance with stringent international safety standards such as IEC 60384-14 and UL 60384-14, Class X2 capacitors are specifically certified for positions where capacitor failure would not lead to dangerous electrical shock hazards. The defining characteristic of this metallized polypropylene construction is its self-healing capability. If a transient high-voltage spike breaches the dielectric layer, the micro-thin metal vaporizes around the fault point, isolating the weakness and restoring insulating integrity. In catastrophic overvoltage scenarios, the component fails in an open-circuit state, preventing severe fire hazards or direct shorts across mains lines.
Robust Mechanical Construction and Thermal Endurance
Encapsulated in a flame-retardant box casing sealed with UL 94V-0 compliant epoxy resin, this capacitor exhibits exceptional moisture resistance and mechanical stability. Featuring a standard 10mm radial lead pitch, it fits seamlessly onto high-density printed circuit boards (PCBs). With a wide operating temperature envelope spanning from -40 degrees Celsius to +100 degrees Celsius and a 40/100/21 climatic classification, it ensures reliable long-term performance under demanding environmental conditions.
Versatile Applications in Modern Power Electronics
This 10nF safety capacitor is widely deployed in switched-mode power supplies (SMPS), AC/DC power adapters, LED lighting drivers, solar inverters, motor controllers, and audio equipment. It serves as an indispensable noise filter across line-to-neutral inputs, preventing electrical appliances from feeding high-frequency switching noise back into the grid while protecting internal circuitry from incoming power line transients.


