DPM4S22K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM4S22K-F is a 0.022 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPM series. This radial polypropylene metallized capacitor is rated for 400V 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 in active production status with 937 pieces available in inventory.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design requirements necessitate alternative voltage ratings or physical dimensions, or when supply chain optimization requires component standardization across manufacturing batches.

Substiute Parts

DPM4S22K-F

Cornell Dubilier Electronics (CDE)In Stock: 1040DPM4S22K-F Datasheet

Current PartRFQ

R75LF22204000K

KEMETIn Stock: 7363R75LF22204000K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPM4S22K-F must satisfy the following criteria based on allowed electrical and mechanical parameters:

Mandatory Matching Parameters:

• Capacitance value: 0.022 µF (exact match required)
• Tolerance: ±10% (equivalent tolerance class)
• Dielectric material: Polypropylene (PP), Metallized
• Mounting type: Through Hole, Radial
• Lead spacing: 0.394" (10.00mm)
• Operating temperature range: -55°C ~ 105°C minimum

Allowable Variation Parameters:

• Voltage rating - DC: Equal to or greater than 400V
• Physical dimensions: May vary within PCB layout constraints
• Packaging format: Bulk or standard packaging acceptable
• Product status: Active or Obsolete parts acceptable if other parameters align

The KEMET R75LF22204000K qualifies as a direct substitute based on these criteria. It maintains identical capacitance, tolerance, dielectric material, mounting configuration, and lead spacing. The substitute part exceeds the voltage rating requirement (560V DC versus 400V DC), providing additional safety margin. Both parts share the same operating temperature range and RoHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: DPM4S22K-F (CDE)

The DPM4S22K-F remains the preferred component for new designs and production runs. This part maintains active production status, ensuring long-term availability and consistent supply chain support. The part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. With 937 pieces in current inventory, immediate procurement is feasible for production requirements.

Substitute Selection: R75LF22204000K (KEMET)

The R75LF22204000K serves as a qualified substitute when the primary part becomes unavailable. This part satisfies all mandatory electrical parameters and exceeds voltage rating specifications, providing enhanced safety margins in DC link and DC filtering applications. The substitute maintains ROHS3 compliance and REACH unaffected status.

Critical Consideration: The R75LF22204000K carries an Obsolete product status designation. While the part currently has 7337 pieces in inventory, future availability cannot be guaranteed. This substitute is appropriate for legacy system maintenance, repair operations, or short-term production runs where supply continuity is not critical.

Physical Dimension Impact: The substitute part features reduced width (0.157" versus 0.276") and height (0.358" versus 0.551"). These dimensional differences provide improved PCB layout flexibility and may reduce overall assembly footprint. Verify PCB layout compatibility before implementation, as the smaller profile may affect mechanical support or thermal management characteristics in specific applications.

Frequently Asked Questions (FAQ)

Q: Can the R75LF22204000K be used as a direct replacement for the DPM4S22K-F in existing designs?

A: Yes, the R75LF22204000K qualifies as a direct electrical substitute. Both parts share identical capacitance (0.022 µF), tolerance (±10%), dielectric material (polypropylene metallized), mounting type (through-hole radial), and lead spacing (10.00mm). The substitute's higher voltage rating (560V DC versus 400V DC) provides additional safety margin. Verify PCB layout compatibility due to reduced physical dimensions before implementation.

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

A: Substitution eligibility is determined by: capacitance value (must be 0.022 µF), tolerance class (±10%), dielectric material (polypropylene metallized), mounting configuration (through-hole radial), lead spacing (10.00mm), and operating temperature range (-55°C to 105°C). Voltage rating must equal or exceed 400V DC. Physical dimensions may vary within PCB constraints.

Q: Why does the substitute part have different physical dimensions?

A: The R75LF22204000K features a more compact design with reduced width and height compared to the DPM4S22K-F. This dimensional difference reflects different manufacturing approaches between Cornell Dubilier Electronics and KEMET while maintaining identical electrical performance and lead spacing. The smaller profile may provide PCB layout advantages in space-constrained applications.

Q: Is the R75LF22204000K suitable for new production designs?

A: The R75LF22204000K carries an Obsolete product status, indicating discontinued production. While 7337 pieces are currently in inventory, future availability is not guaranteed. For new production designs requiring long-term supply continuity, the active-status DPM4S22K-F is the recommended choice. The substitute is appropriate for legacy system maintenance and repair operations.

Q: Are both parts compliant with current regulatory standards?

A: Yes, both the DPM4S22K-F and R75LF22204000K are ROHS3 compliant and REACH unaffected. Both parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What applications are these capacitors suitable for?

A: Both parts are specified for DC link, DC filtering, high-frequency, and switching applications. The low ESR and low ESL characteristics of the DPM4S22K-F make it suitable for power conversion circuits, inverters, and high-frequency switching power supplies. The substitute part maintains these performance characteristics.