Overview
The KEMET M83421/01-0204P is a high-reliability military-grade film capacitor engineered for demanding aerospace, defense, and industrial applications. Rated at 0.33µF and 400VDC, this MilSpec component meets strict qualification standards for long-term performance and stability. KEMET’s M83421 series represents a proven platform for applications requiring proven reliability and consistent performance over extended operating life.
Key Features
- MilSpec-qualified design per military reliability standards
- 0.33µF capacitance with 400VDC working voltage
- Polyester (polyethylene terephthalate) film dielectric construction
- F242 package — compact axial-leaded form factor
- Suitable for industrial electronics, power supplies, and signal conditioning circuits
- RoHS compliant — lead-free construction
Technical Specifications
- Capacitance: 0.33µF (330nF)
- Voltage Rating: 400VDC
- Dielectric Type: Polyester film
- Package: F242 axial leaded
- Series: KEMET M83421
- Certification: MilSpec qualified, RoHS compliant
- Operating Temperature Range: -55°C to +125°C (typical)
- Condition: New, open box
Typical Applications
- Military and aerospace electronics
- Industrial control systems and power supplies
- Signal coupling and filtering circuits
- DC bus filtering and energy storage
- High-reliability retrofit and replacement projects
Compatibility & Replacements
Compatible With
- Military and industrial electronics platforms
- Analog and digital signal processing circuits
- Power distribution systems rated to 400VDC
- Standard PCB footprints for axial-leaded capacitors
Replaces / Drop-In Replacement For
- Previous KEMET M83421 variants with equivalent 0.33µF/400VDC ratings
- Other MilSpec polyester film capacitors in the same form factor and voltage class
- Verify part compatibility with your system design before substitution
Works With
- Standard PCB assembly processes for axial-leaded components
- Hand soldering and automated wave-soldering equipment
- High-reliability electronics manufacturing and repair workflows








