DPM2S68K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM2S68K-F is a 0.068 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPM series. This radial polypropylene metallized film capacitor is rated for 250V DC operation and features low ESR and low ESL characteristics, making it suitable for DC link, DC filtering, and high-frequency switching applications. The part is currently active in production with 1006 pieces in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange.

Substiute Parts

DPM2S68K-F

Cornell Dubilier Electronics (CDE)In Stock: 1054DPM2S68K-F Datasheet

Current PartRFQ

683MPR250K

Cornell Dubilier / Illinois CapacitorIn Stock: 3970683MPR250K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPM2S68K-F are identified based on strict electrical and mechanical compatibility criteria. The substitution logic requires that all substitute parts maintain the following core parameters:

Electrical Requirements:

• Capacitance value of 0.068 µF (exact match)
• Tolerance of ±10% or tighter
• DC voltage rating of 250V or higher
• Polypropylene metallized dielectric material
• Operating temperature range of -55°C to 105°C or wider

Mechanical Requirements:

• Through-hole radial mounting configuration
• Lead spacing of 0.394" (10.00mm)
• PC pin termination
• RoHS3 compliance
• MSL rating of 1 (Unlimited)

The 683MPR250K from Cornell Dubilier / Illinois Capacitor meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 683MPR250K is a direct electrical equivalent to the DPM2S68K-F and is suitable for substitution in applications where the following conditions are met:

Electrical Compatibility: Both parts share identical capacitance (0.068 µF), tolerance (±10%), DC voltage rating (250V), dielectric material (polypropylene metallized), and operating temperature range (-55°C to 105°C). The 683MPR250K provides a higher AC voltage rating (200V versus 160V), which presents no limitation for substitution.

Mechanical Compatibility: Both parts feature identical lead spacing (0.394" / 10.00mm), PC pin termination, and through-hole radial mounting. The 683MPR250K has a smaller physical footprint (1mm narrower width, 4mm shorter height), which is advantageous for space-constrained PCB layouts and does not prevent substitution.

Regulatory and Compliance: Both parts are ROHS3 compliant, carry MSL rating 1 (Unlimited), and are REACH unaffected. Both are currently in active production status with adequate inventory availability.

Application Suitability: Both parts are rated for DC link, DC filtering, and high-frequency switching applications. The 683MPR250K's low ESR characteristic aligns with the DPM2S68K-F's performance profile.

Frequently Asked Questions (FAQ)

Q: Can the 683MPR250K be used as a direct replacement for the DPM2S68K-F on existing PCBs?

A: Yes. Both parts have identical lead spacing (0.394" / 10.00mm) and PC pin termination. The 683MPR250K's smaller physical dimensions (1mm narrower, 4mm shorter) present no compatibility issues and may provide additional PCB layout flexibility.

Q: Are there any electrical performance differences between these two parts?

A: Both parts have identical capacitance (0.068 µF), tolerance (±10%), DC voltage rating (250V), and operating temperature range (-55°C to 105°C). The 683MPR250K has a higher AC voltage rating (200V versus 160V). Both feature low ESR characteristics; the DPM2S68K-F additionally specifies low ESL.

Q: What is the lead spacing requirement for these capacitors?

A: Both the DPM2S68K-F and 683MPR250K have a lead spacing of 0.394" (10.00mm), which determines PCB footprint compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the DPM2S68K-F and 683MPR250K are ROHS3 compliant and carry MSL rating 1 (Unlimited), indicating no moisture sensitivity limitations.

Q: What applications are these capacitors suitable for?

A: Both parts are rated for DC link, DC filtering, high-frequency, and switching applications. The polypropylene metallized dielectric and low ESR characteristics support these use cases.

Q: Is there an inventory advantage to selecting one part over the other?

A: The 683MPR250K has higher inventory availability (3912 pieces in stock) compared to the DPM2S68K-F (1006 pieces in stock), which may provide supply chain advantages.