DPPM10D68K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPPM10D68K-F is a 6800 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPPM series. This radial through-hole component features a polypropylene metallized dielectric rated for 1000V DC and 450V AC operation across an operating temperature range of -40°C to 105°C. The part is currently active in production with 886 units in stock. Film capacitors of this specification are essential in high-frequency switching applications, snubber circuits, and high pulse/DV/DT environments where reliability and performance stability are critical. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and cost optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

DPPM10D68K-F

Cornell Dubilier Electronics (CDE)In Stock: 994DPPM10D68K-F Datasheet

Current PartRFQ

R73QI16804030J

KEMETIn Stock: 2096R73QI16804030J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPPM10D68K-F are identified based on strict electrical and mechanical parameter matching. The substitution logic is governed by the following criteria:

Mandatory Matching Parameters:

• Capacitance value: 6800 pF (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (ensures equivalent frequency response and stability characteristics)
• Mounting type: Through Hole (required for PCB assembly compatibility)
• Package type: Radial (physical form factor constraint)

Compatible Variation Parameters:

• Voltage Rating - DC: Substitute must equal or exceed 1000V
• Voltage Rating - AC: Substitute must support the application's AC voltage requirements
• Tolerance: Substitute tolerance of ±5% is tighter than the original ±10%, making it compatible for circuits designed around the original tolerance
• Operating Temperature Range: Substitute range must encompass or exceed the application's temperature requirements
• RoHS Status: Both parts must maintain equivalent regulatory compliance

The identified substitute part R73QI16804030J from KEMET meets all mandatory matching criteria and compatible variation parameters, making it a valid electrical and mechanical equivalent for the DPPM10D68K-F.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - AC Voltage Rating: The DPPM10D68K-F is rated for 450V AC, while the R73QI16804030J substitute is rated for 400V AC. If the application operates at AC voltages between 400V and 450V, the substitute part's lower AC rating presents a potential limitation. Verify the actual AC voltage requirement in the circuit before selecting the substitute.

Physical Footprint Compatibility: The substitute part has a significantly different lead spacing (0.591" versus 0.827") and smaller overall dimensions. While the smaller size offers advantages in compact designs, PCB footprint modification is required. The substitute's lower profile (0.437" versus 0.630") is compatible with standard through-hole assembly processes.

Regulatory and Compliance Status: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory standing for applications requiring these certifications. The KEMET R73QI16804030J includes AEC-Q200 automotive qualification, providing additional assurance for automotive and high-reliability applications.

Temperature Range: The substitute part's extended low-temperature rating (-55°C versus -40°C) provides additional operational margin in cold environments. Both parts support the upper temperature limit of 105°C.

Tolerance Consideration: The substitute's tighter ±5% tolerance compared to the original ±10% is advantageous for precision circuits and provides improved capacitance stability.

Inventory and Availability: The substitute part (R73QI16804030J) has higher inventory availability (2011 units versus 886 units), supporting supply chain continuity and lead time reduction.

Frequently Asked Questions (FAQ)

Q: Can the R73QI16804030J directly replace the DPPM10D68K-F without PCB modification?

A: No. While both parts are electrically equivalent 6800 pF film capacitors with identical DC voltage ratings and dielectric materials, the lead spacing differs significantly (0.591" versus 0.827"). PCB footprint modification is required. The substitute's smaller physical dimensions and lower profile are compatible with standard through-hole assembly, but the board layout must be updated to accommodate the different lead spacing.

Q: What is the impact of the 50V difference in AC voltage rating (450V versus 400V)?

A: The AC voltage rating difference is application-dependent. If your circuit operates at AC voltages of 400V or below, the substitute part is fully compatible. If AC voltages exceed 400V but remain below 450V, the substitute part operates outside its rated specification. Verify the actual AC voltage requirement in your application before selecting the substitute.

Q: Are both parts suitable for high-frequency switching applications?

A: Yes. Both the DPPM10D68K-F and R73QI16804030J are polypropylene metallized film capacitors designed for high-frequency switching, high pulse, and DV/DT applications. The identical dielectric material and construction ensure equivalent performance in these application categories.

Q: Does the substitute part's tighter tolerance (±5% versus ±10%) affect circuit compatibility?

A: No. The substitute's tighter tolerance is compatible with circuits designed for the original ±10% tolerance. Tighter tolerance provides improved capacitance stability and is advantageous for precision applications. No circuit redesign is required.

Q: What are the advantages of the substitute part's extended temperature range (-55°C to 105°C)?

A: The extended low-temperature rating provides operational margin in cold environments and industrial applications. If your application requires operation below -40°C, the substitute part is the appropriate choice. For applications within the original -40°C to 105°C range, both parts are equivalent.

Q: Is the substitute part's smaller physical size compatible with my PCB assembly process?

A: The substitute part's smaller dimensions (18.00mm x 5.00mm versus 25.00mm x 8.50mm) and lower profile (11.10mm versus 16.00mm) are compatible with standard through-hole assembly equipment. However, PCB layout must be verified to ensure adequate clearance around the component and proper lead spacing accommodation.

Q: Do both parts meet automotive qualification standards?

A: The DPPM10D68K-F does not specify automotive qualification. The R73QI16804030J carries AEC-Q200 automotive qualification, making it suitable for automotive applications. If automotive qualification is required, the substitute part is the appropriate selection.

Q: What is the significance of the different packaging specifications (Bulk versus standard)?

A: The substitute part is supplied in Bulk packaging, while the original part uses standard packaging. This affects order quantities and handling procedures but does not impact electrical or mechanical performance. Verify packaging requirements with your procurement process.