DPP4S1K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPP4S1K-F is a 10000 pF metallized polypropylene film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPP series. This radial through-hole component is rated for 400V DC operation with ±10% capacitance tolerance and operates across the temperature range of -55°C to 105°C. The part is currently active in production with 835 units in stock. Film capacitors of this specification are essential in high-frequency switching applications where low ESR and stable dielectric performance are required. Identifying qualified substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources when the primary part becomes unavailable.

Substiute Parts

DPP4S1K-F

Cornell Dubilier Electronics (CDE)In Stock: 854DPP4S1K-F Datasheet

Current PartRFQ

R75PF21004030J

KEMETIn Stock: 15520R75PF21004030J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPP4S1K-F are qualified based on the following criteria:

Electrical Equivalence Requirements:

• Capacitance value must be 10000 pF (exact match)
• DC voltage rating must be ≥400V
• AC voltage rating must be ≥250V
• Dielectric material must be polypropylene (PP), metallized
• Operating temperature range must encompass -55°C to 105°C
• Tolerance must be ±10% or tighter

Mechanical Compatibility Requirements:

• Mounting type must be through-hole, radial configuration
• Lead spacing must be 0.394" (10.00mm) to ensure PCB footprint compatibility
• Package case must be radial

Regulatory Compliance Requirements:

• RoHS3 compliance mandatory
• REACH unaffected status required

The KEMET R75PF21004030J qualifies as a direct substitute because it meets all electrical parameters (10000 pF capacitance, 630V DC rating exceeding the 400V requirement, 250V AC rating, polypropylene dielectric, -55°C to 105°C temperature range), maintains mechanical compatibility (through-hole radial, 0.394" lead spacing), and satisfies regulatory requirements (ROHS3 compliant, REACH unaffected).

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Footprint Compatibility: The R75PF21004030J maintains identical lead spacing (0.394" / 10.00mm) and radial through-hole configuration, ensuring direct PCB footprint compatibility with designs specified for the DPP4S1K-F. Both parts are currently in active production status, confirming ongoing availability and manufacturing support.

Voltage Performance: The R75PF21004030J provides a higher DC voltage rating (630V versus 400V), which exceeds the application requirement. This characteristic does not degrade performance in circuits designed for 400V operation and provides additional safety margin in transient voltage conditions.

Capacitance Tolerance: The R75PF21004030J offers ±5% tolerance compared to the DPP4S1K-F's ±10% tolerance. Tighter tolerance improves circuit performance in applications sensitive to capacitance variation, such as precision filtering or timing circuits.

Physical Dimensions: The R75PF21004030J is more compact (13.00mm x 4.00mm versus 15.00mm x 8.50mm) with lower seated height (9.10mm versus 17.00mm). This dimensional advantage may benefit space-constrained PCB layouts while maintaining electrical equivalence.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for industrial and commercial applications.

Temperature Performance: Both parts operate across the identical temperature range (-55°C to 105°C), ensuring thermal performance equivalence across all operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the R75PF21004030J be used as a direct replacement for the DPP4S1K-F in existing designs?

A: Yes. The R75PF21004030J is electrically and mechanically compatible. Both parts have identical capacitance (10000 pF), lead spacing (10.00mm), operating temperature range (-55°C to 105°C), and mounting configuration (through-hole radial). The substitute meets or exceeds all voltage ratings and maintains equivalent dielectric performance through identical polypropylene metallized construction.

Q: What are the physical dimension differences between these parts?

A: The DPP4S1K-F measures 15.00mm L x 8.50mm W with 17.00mm seated height. The R75PF21004030J measures 13.00mm L x 4.00mm W with 9.10mm seated height. Despite these dimensional differences, both parts use the same 10.00mm lead spacing, allowing them to fit the same PCB footprint. The substitute's more compact profile may provide layout advantages in space-constrained applications.

Q: Does the tighter tolerance of the R75PF21004030J (±5% versus ±10%) affect circuit performance?

A: Tighter tolerance improves circuit performance in applications where capacitance precision is critical. The ±5% tolerance of the R75PF21004030J provides better capacitance stability compared to the ±10% tolerance of the DPP4S1K-F. This is beneficial in filtering, timing, and resonant circuits where capacitance variation directly impacts performance.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the DPP4S1K-F and R75PF21004030J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial, commercial, and consumer applications.

Q: Why does the R75PF21004030J have a higher voltage rating (630V versus 400V)?

A: The higher voltage rating reflects the design specifications of the KEMET R75 series. In applications designed for 400V operation, the 630V rating provides additional safety margin and does not negatively impact performance. The substitute remains fully compatible with circuits specified for 400V DC operation.

Q: What is the lead spacing requirement, and do both parts meet it?

A: The standard lead spacing for these radial film capacitors is 0.394" (10.00mm). Both the DPP4S1K-F and R75PF21004030J maintain this exact lead spacing, ensuring compatibility with PCB footprints designed for either part.

Q: Are both parts currently available in production?

A: Yes. Both parts maintain active product status. The DPP4S1K-F has 835 units in stock, and the R75PF21004030J has 15496 units in stock, confirming ongoing manufacturing support and availability from both Cornell Dubilier Electronics and KEMET.