Overview
The Cornell-Dubilier TJH10040G is a hermetically sealed PIO (paper-in-oil) capacitor designed for demanding industrial and commercial applications. This 4µF, 1000V DC rated unit combines oil-filled construction with sealed terminal design to deliver stable performance under harsh environmental conditions. Cornell-Dubilier (CDE) capacitors are widely recognized for consistency and reliability in power electronics, HVAC systems, motor applications, and high-voltage filtering circuits.
Key Features
- Hermetically sealed construction with oil-filled dielectric for enhanced moisture and oxidation resistance
- 4µF capacitance with 1000V DC voltage rating
- Paper-in-oil (PIO) dielectric technology ensures stable electrical performance across operating ranges
- Robust terminal design suitable for panel-mount or screw-down installations
- Established design for power factor correction, filtering, and pulse applications
Technical Specifications
- Capacitance: 4µF
- Voltage Rating: 1000V DC
- Dielectric Type: Paper-in-Oil (PIO)
- Construction: Hermetically Sealed
- Manufacturer: Cornell-Dubilier (CDE)
- Part Number: TJH10040G
- Terminal Style: Radial/Screw Mount
- Application Category: High-voltage filter, power factor correction
Typical Applications
- Power factor correction circuits and panels
- High-voltage DC filtering in power supplies and rectifier circuits
- Motor starting and run applications
- Industrial control systems and machinery
- Pulse discharge and energy storage systems
- HVAC and refrigeration equipment
Compatibility & Replacements
Compatible With
- Industrial control systems rated for 1000V DC circuits
- Power factor correction equipment
- High-voltage rectifier and filter applications
- Motor run and motor start circuits
- Industrial power supplies and transformers
Replaces / Drop-In Replacement For
- Cornell-Dubilier TJU10040G (variant designation)
- Other 4µF 1000V oil-filled hermetically sealed capacitors from the TJ-series
- Verify compatibility with your system integrator before ordering to ensure terminal configuration and mounting style match your application
Works With
- Industrial control panels and PLC systems
- HVAC control modules
- Power distribution and motor control equipment
- High-voltage DC filter networks and power conditioning circuits
