Overview
The Vishay Cera-Mite 440L 4700pF 250VAC is a ceramic disc safety capacitor designed for electromagnetic interference (EMI) suppression and mains connection filtering in electrical equipment. As an X1/Y1 classified safety capacitor, this component meets rigorous industry standards for use across-the-line in industrial, commercial, and consumer applications. The lot includes 50 units of new stock, providing an economical supply for production runs or inventory replenishment.
Key Features
- Silver-plated ceramic disc construction with tinned copper leads (0.032″ diameter)
- X1/Y1 safety classification for mains voltage applications
- Radial lead spacing: 0.375″ (9.5mm) for standard PCB mounting
- ±20% capacitance tolerance
- Flame retardant epoxy resin coating (UL 94 V-0)
- Lot quantity: 50 units
Technical Specifications
- Capacitance: 4700 pF (0.0047 µF)
- Voltage Rating: 250 VAC
- Tolerance: ±20%
- Dielectric Material: Ceramic (Class 2)
- Operating Temperature Range: -30°C to +125°C
- Lead Diameter: 0.032″ (0.81 mm), tinned copper
- Lead Spacing: 0.375″ (9.5 mm) radial
- Package Style: Radial leaded disc
- Coating: Flame retardant epoxy resin (UL 94 V-0)
- Manufacturer: Vishay BC Components
- Series: Cera-Mite 440L
Typical Applications
The Cera-Mite 440L is widely used in:
- Power supply input filtering and decoupling across AC mains
- Electromagnetic interference (EMI) suppression in switching power supplies
- Line-to-ground and across-the-line filtering circuits
- Industrial control equipment and panel mount applications
- Commercial HVAC, motor drives, and appliance electronics
- Retrofit and repair of legacy equipment requiring X1/Y1 safety-rated capacitors
Compatibility & Replacements
Compatible With
- Through-hole PCB designs with 0.375″ (9.5 mm) lead spacing
- Standard PCB-mounted and chassis-mounted applications
- Equipment designed for radial ceramic disc capacitors
- Automated insertion machinery and hand assembly methods
- Industrial control systems and power electronics
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or equipment manufacturer before ordering. The Cera-Mite 440L 4700pF 250VAC is a direct replacement for obsolete or failed X1/Y1 safety capacitors of the same voltage and capacitance rating. Common equivalent parts include other Vishay Cera-Mite 440L variants and comparable 4700pF 250VAC safety capacitors from manufacturers such as KEMET, TDK, and Arcotronics.
Works With
- IEC 61812-4 (formerly IEC 384-14) X1/Y1 safety capacitor standards
- UL 94 V-0 flame retardant coating requirements
- Standard through-hole component soldering equipment
- Automated wave soldering and selective soldering systems
- Both new equipment design and legacy equipment repair/replacement
