DPM2P68K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM2P68K-F is a 0.68 µF metallized polypropylene film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 250V DC operation. This radial through-hole component is designed for DC link and DC filtering applications in high-frequency switching circuits. The part is currently in active production status with 1014 units available in inventory. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications requiring identical or compatible electrical and mechanical specifications.

Substiute Parts

DPM2P68K-F

Cornell Dubilier Electronics (CDE)In Stock: 1107DPM2P68K-F Datasheet

Current PartRFQ

684MPR250K

Cornell Dubilier / Illinois CapacitorIn Stock: 860684MPR250K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DPM2P68K-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 0.68 µF (exact match)
• Tolerance: ±10% (exact match)
• Voltage Rating - DC: 250V (exact match or higher)
• Dielectric material: Polypropylene (PP), Metallized (exact match)
• Operating temperature range: -55°C to 105°C (minimum requirement)

Mechanical Compatibility Requirements:

• Mounting type: Through Hole (exact match)
• Package / Case: Radial (exact match)
• Lead spacing: 0.886" (22.50mm) (exact match for PCB compatibility)
• Termination: PC Pins (exact match)

Compliance Requirements:

• RoHS3 Compliant status (required for regulatory alignment)
• MSL Level 1 (Unlimited moisture sensitivity)

The substitute part 684MPR250K meets all electrical equivalence and mechanical compatibility criteria, with identical capacitance, tolerance, DC voltage rating, dielectric material, operating temperature range, mounting configuration, lead spacing, and termination type. Both parts are manufactured by Cornell Dubilier / Illinois Capacitor and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (DPM2P68K-F): The DPM2P68K-F remains the primary component choice when available. It is in active production status with substantial inventory (1014 units), ensuring supply continuity. This part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial and commercial applications.

Substitute Selection (684MPR250K): The 684MPR250K is a direct electrical and mechanical substitute for the DPM2P68K-F. Both parts share identical capacitance (0.68 µF), tolerance (±10%), DC voltage rating (250V), dielectric material (polypropylene metallized), operating temperature range (-55°C to 105°C), lead spacing (22.50mm), and termination type (PC Pins). The substitute part is also in active production with 809 units in inventory and maintains ROHS3 compliance and REACH unaffected status.

Physical Dimension Considerations: The 684MPR250K exhibits a more compact physical profile compared to the DPM2P68K-F. The substitute part is 4mm shorter in seated height (15.00mm versus 19.00mm) and 0.5mm narrower in width (9.50mm versus 10.00mm). These dimensional differences do not affect electrical performance or lead spacing compatibility but may provide advantages in space-constrained PCB layouts. Verification of available PCB clearance is necessary prior to substitution in existing designs.

AC Voltage Rating Difference: The 684MPR250K carries a higher AC voltage rating (200V) compared to the DPM2P68K-F (160V). This represents an enhancement in AC performance capability and does not restrict substitution in applications where the main part was originally specified.

Compliance and Production Status: Both parts maintain identical regulatory compliance profiles (ROHS3 Compliant, REACH Unaffected, MSL Level 1). Both are in active production status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 684MPR250K be used as a direct replacement for the DPM2P68K-F in existing circuit designs?

A: Yes. The 684MPR250K is electrically and mechanically equivalent to the DPM2P68K-F across all critical parameters: capacitance (0.68 µF), tolerance (±10%), DC voltage rating (250V), dielectric material (polypropylene metallized), operating temperature range (-55°C to 105°C), lead spacing (22.50mm), and termination type (PC Pins). Both parts are ROHS3 compliant and suitable for DC link and DC filtering applications. The substitute part's more compact physical dimensions (4mm shorter height, 0.5mm narrower width) do not affect electrical performance or PCB compatibility.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence in the following electrical parameters: capacitance value (0.68 µF), tolerance (±10%), DC voltage rating (250V minimum), and dielectric material (polypropylene metallized). Both the DPM2P68K-F and 684MPR250K meet these criteria. Operating temperature range (-55°C to 105°C) must also be maintained.

Q: Are there any mechanical compatibility issues when substituting the 684MPR250K for the DPM2P68K-F?

A: No mechanical compatibility issues exist. Both parts feature identical lead spacing (0.886" / 22.50mm), mounting type (through hole), package configuration (radial), and termination type (PC Pins). The 684MPR250K is physically more compact (4mm shorter in height, 0.5mm narrower in width), which may provide advantages in space-constrained designs. Existing PCB layouts designed for the DPM2P68K-F will accommodate the 684MPR250K without modification.

Q: Do both parts meet current regulatory compliance requirements?

A: Yes. Both the DPM2P68K-F and 684MPR250K are ROHS3 compliant and REACH unaffected. Both parts maintain MSL Level 1 (Unlimited moisture sensitivity), indicating no special moisture handling requirements during storage, handling, or assembly.

Q: What is the difference in AC voltage rating between these two parts?

A: The DPM2P68K-F is rated for 160V AC, while the 684MPR250K is rated for 200V AC. Both parts are rated for 250V DC. The higher AC rating of the substitute part represents an enhancement in AC performance capability and does not restrict its use in applications where the main part was originally specified.

Q: Are both parts currently in active production?

A: Yes. Both the DPM2P68K-F (1014 units in inventory) and 684MPR250K (809 units in inventory) are in active production status, ensuring availability and supply chain continuity for new designs and replacement applications.

Q: What applications are these film capacitors suitable for?

A: Both parts are designed for DC link, DC filtering, high-frequency, and switching applications. The metallized polypropylene dielectric and low ESR characteristics make these components suitable for power supply circuits, inverters, and high-frequency switching topologies requiring stable capacitance and low energy loss.