Overview
The WIMA MKS4 1.0µF 400V capacitor is a metallized polyester (PET) film capacitor with a flame-retardant plastic case and epoxy resin seal rated UL 94 V-0. This DIN 44122 standard component delivers stable capacitance performance across industrial, power conditioning, and precision audio applications. Terminations feature tinned wire for reliable soldering and mechanical durability.
Key Features
- Metallized polyester (PET) dielectric material for excellent stability and low loss
- Solvent-resistant, flame-retardant plastic encapsulation with UL 94 V-0 rating
- 5% tolerance meets strict industrial specification requirements
- 400VAC rated for high-voltage power supply and filtering circuits
- Tinned wire terminations for secure PCB mounting
Technical Specifications
- Capacitance: 1.0 µF
- Voltage Rating: 400 VAC
- Tolerance: 5%
- Dielectric Material: Metallized Polyester (PET)
- Operating Temperature Range: –25 to +85°C
- Terminations: Tinned radial wire leads
- Encapsulation: UL 94 V-0 flame-retardant plastic with epoxy resin seal
- Standard: DIN 44122 / IEC 60331
- Applications: Power conditioning, EMI filtering, resonance circuits, audio equipment
Typical Applications
This component with 1 microfarad capacitance and 400 volt rating is suitable for power electronics and filtering applications. Common uses include:
- AC power supply filtering and voltage conditioning
- Industrial motor control circuits and soft-starters
- Audio and precision instrumentation circuits where low ripple and stable performance are required
- EMI/RFI suppression and noise reduction
- Phase shift and timing circuits in electronic equipment
Compatibility & Replacements
Compatible With
- Industrial AC power systems (120V to 480V)
- Motor control and soft-starter circuits
- Audio amplifiers and crossover networks
- General-purpose power supplies and filter applications
- Equipment requiring DIN 44122 / IEC 60331 standard capacitors
Replaces / Drop-In Replacement For
- Other WIMA MKS4 1.0µF 400V units (same rating and tolerance)
- Legacy film capacitors with equivalent specifications in legacy industrial equipment
- Verify compatibility with your system integrator before ordering for critical applications
Works With
- Standard PCB assembly processes and hand-soldering techniques
- Industrial power systems and switchgear
- Audio equipment design and tube amplifier circuits
- AC line filtering and power factor correction circuits
