DME6P33K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME6P33K is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), designed for general-purpose applications requiring high voltage DC performance. This component features a polyester metallized dielectric with a 630V DC rating and ±10% capacitance tolerance. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

DME6P33K

Cornell Dubilier Electronics (CDE)In Stock: 778DME6P33K Datasheet

Current PartRFQ

DME6P33K-F

Cornell Dubilier Electronics (CDE)In Stock: 1203DME6P33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DME6P33K is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.33 µF (exact match required)
• Tolerance: ±10% (defines acceptable capacitance range)
• Voltage Rating - DC: 630V (minimum requirement for circuit operation)
• Voltage Rating - AC: 250V (minimum requirement for circuit operation)
• Dielectric Material: Polyester, Metallized (electrical performance characteristic)
• Operating Temperature Range: -55°C to 125°C (environmental compatibility)
• Mounting Type: Through Hole (PCB assembly compatibility)
• Package Type: Radial (physical form factor)
• Lead Spacing: 0.886" (22.50mm) (PCB footprint compatibility)
• Termination: PC Pins (solder connection compatibility)

The DME6P33K-F qualifies as a direct substitute based on identical electrical specifications and mechanical dimensions within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

The DME6P33K-F is a direct functional and mechanical equivalent to the obsolete DME6P33K. Selection of the DME6P33K-F is based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters are identical, including capacitance value, tolerance, voltage ratings (630V DC / 250V AC), dielectric material, and operating temperature range. The substitute maintains full electrical compatibility with the original design.

Mechanical Compatibility: Physical dimensions, lead spacing, mounting type, and termination style are identical. The DME6P33K-F integrates into existing PCB layouts without modification.

Product Status: The DME6P33K-F carries an active product status, ensuring ongoing availability and supply chain continuity. The original DME6P33K is obsolete and subject to availability constraints.

Regulatory Compliance: The DME6P33K-F achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status. Selection of the substitute provides improved environmental compliance for new production or system updates.

Packaging: The DME6P33K-F is supplied in bulk packaging, suitable for manufacturing environments requiring standard component handling.

Frequently Asked Questions (FAQ)

Q: Can the DME6P33K-F replace the DME6P33K in existing designs?

A: Yes. The DME6P33K-F is electrically and mechanically equivalent. All critical parameters—capacitance, voltage ratings, dielectric material, operating temperature range, lead spacing, and mounting type—are identical. Direct substitution is supported without circuit redesign.

Q: What is the difference between the DME6P33K and DME6P33K-F?

A: The primary differences are product status and regulatory compliance. The DME6P33K is obsolete; the DME6P33K-F is active. The DME6P33K-F achieves ROHS3 compliance, while the original is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there physical dimension differences between these parts?

A: No. Both parts share identical dimensions: 1.024" L x 0.315" W (26.00mm x 8.00mm), with a lead spacing of 0.886" (22.50mm). PCB footprints are interchangeable.

Q: What is the lead spacing for the DME6P33K?

A: The lead spacing is 0.886" (22.50mm) for both the DME6P33K and DME6P33K-F. This dimension is critical for PCB layout compatibility.

Q: Is the DME6P33K-F suitable for high-voltage applications?

A: Yes. The DME6P33K-F is rated for 630V DC and 250V AC, making it suitable for high-voltage general-purpose applications within these voltage specifications.

Q: What is the operating temperature range?

A: Both the DME6P33K and DME6P33K-F operate across -55°C to 125°C, supporting applications in wide temperature environments.

Q: Why is the original DME6P33K obsolete?

A: Product obsolescence is determined by manufacturer discontinuation. The DME6P33K-F is the active equivalent and recommended for new designs and component procurement.