Overview
The M83421/01-0204P is a metallized plastic film dielectric capacitor manufactured by Exxelia Group under the MIL-PRF-83421 military specification standard. With a capacitance rating of 0.33 microfarads (µF) and a voltage rating of 400VDC, this component is designed for harsh environments and critical applications in aerospace, defense, and industrial systems. The unit features hermetic sealing in a metal case to ensure long-term reliability and resistance to moisture and contamination.
Key Features
- Metallized plastic film dielectric construction for stable capacitance
- Military-specification (MIL-PRF-83421) established reliability design
- Hermetically sealed metal case for environmental protection
- 400VDC rated voltage suitable for high-voltage applications
- Through-hole axial mounting configuration
- DC and AC operation capability
Technical Specifications
The following specifications apply to this component:
- Capacitance: 0.33 µF (microfarads)
- Voltage Rating: 400VDC
- Dielectric Material: Metallized plastic film
- Mounting Type: Through-hole axial
- Case Material: Metal (hermetically sealed)
- Operating Temperature Range: –65°C to +85°C
- Specification Standard: MIL-PRF-83421
Typical Applications
The M83421/01-0204P is commonly used in:
- Military and defense electronics
- Aerospace avionics and ground support equipment
- Power supply filtering and coupling circuits
- Established reliability systems requiring high-voltage operation
- Industrial control equipment and instrumentation
- Applications requiring certified component traceability and reliability
Compatibility & Replacements
Compatible With
- Military and aerospace electronics platforms requiring MIL-PRF-83421 components
- High-voltage DC power supply circuits (up to 400V)
- Filter and bypass circuit applications
- Coupling and decoupling networks in analog and digital systems
- Systems requiring established reliability certification
Replaces / Drop-In Replacement For
This component is a direct replacement for other M83421/01 variants with identical electrical specifications. Verify the specific dash number (–0204P) and capacitance/voltage rating match your original component before ordering. For confirmed replacement part numbers, consult the original equipment manufacturer (OEM) documentation or your system integrator.
Works With
- Military specification procurement systems (NSN and CAGE code compatible)
- MIL-PRF-83421 qualified electronic assemblies
- High-voltage power supply designs (DC and AC operation)
- Established reliability and high-reliability manufacturing environments
- Components requiring third-party test and traceability certification












