PVC12139 Film Capacitor Equivalent & Substitute Parts

Part Overview

The PVC12139 is a 0.039 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 1200V DC (1.2kV) with polypropylene dielectric and radial through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system maintenance and new design implementations. The radial configuration and high voltage rating position this capacitor for general-purpose applications requiring reliable energy storage and filtering in high-voltage circuits.

Substiute Parts

PVC12139

Cornell Dubilier Electronics (CDE)In Stock: 852PVC12139 Datasheet

Current PartRFQ

DPFF12S39J-F

Cornell Dubilier Electronics (CDE)In Stock: 690DPFF12S39J-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PVC12139 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must remain constant or within acceptable engineering tolerances:

Critical Parameters (Must Match):

• Capacitance value: 0.039 µF
• Voltage rating: 1200V DC minimum
• Dielectric material: Polypropylene (PP)
• Mounting type: Through Hole, Radial configuration
• Termination: PC Pins
• Operating temperature range: -55°C to +105°C minimum

Allowable Variations:

• Tolerance: May be tighter (±5%) than the original ±10%
• Physical dimensions: May differ within radial package constraints
• Lead spacing: May vary based on package geometry
• Dielectric construction: Metallized polypropylene acceptable as functional equivalent

The DPFF12S39J-F meets all critical parameters while offering improved tolerance specification and active product status.

Parameter Comparison

Engineering Selection Recommendations

The DPFF12S39J-F is a direct functional equivalent to the obsolete PVC12139. Selection of this substitute is based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical capacitance (0.039 µF), voltage ratings (1200V DC / 475V AC), and operating temperature range (-55°C to +105°C). The DPFF12S39J-F features a tighter tolerance specification (±5% versus ±10%), which provides improved circuit performance without introducing incompatibility.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement and deployment.

Product Availability: The PVC12139 is classified as obsolete with limited inventory (752 pcs). The DPFF12S39J-F maintains active product status with current manufacturing support (675 pcs in stock), ensuring long-term supply chain reliability and technical support availability.

Physical Compatibility: Both parts utilize radial through-hole mounting with PC pin termination, enabling direct board-level substitution. Dimensional variations between the two packages are within acceptable radial envelope tolerances for standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the DPFF12S39J-F replace the PVC12139 in existing circuit designs?

A: Yes. The DPFF12S39J-F is electrically and mechanically equivalent to the PVC12139. Both components share identical capacitance, voltage ratings, temperature range, and mounting configuration. The substitute features improved tolerance specification (±5% versus ±10%), which enhances circuit performance without introducing incompatibility.

Q: What is the difference between standard polypropylene and metallized polypropylene dielectric?

A: The PVC12139 uses standard polypropylene dielectric, while the DPFF12S39J-F uses metallized polypropylene. Both are polypropylene-based dielectrics suitable for high-voltage applications. Metallized construction provides self-healing properties and compact packaging while maintaining electrical performance at the specified voltage and capacitance ratings.

Q: Are there physical dimension differences between these two parts?

A: Yes. The PVC12139 measures 0.740" diameter × 1.650" length (18.80mm × 41.90mm) with 1.343" lead spacing (34.10mm). The DPFF12S39J-F measures 1.701" length × 0.850" width (43.20mm × 21.60mm) with 1.094" lead spacing (27.80mm). Both maintain radial through-hole configuration. PCB layout modifications may be required to accommodate the different physical envelope.

Q: Why is the PVC12139 classified as obsolete?

A: The PVC12139 is no longer in active production. The DPFF12S39J-F represents the current-generation equivalent from the same manufacturer, offering improved specifications and ongoing manufacturing support.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the PVC12139 and DPFF12S39J-F are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component procurement.

Q: What is the lead spacing difference, and does it affect PCB compatibility?

A: The PVC12139 has 1.343" lead spacing (34.10mm), while the DPFF12S39J-F has 1.094" lead spacing (27.80mm). This difference requires PCB layout verification before substitution. Existing PCB footprints designed for the PVC12139 may require modification to accommodate the DPFF12S39J-F lead spacing.