DPPM20D12K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPPM20D12K-F is a 1200 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DPPM series. This radial polypropylene metallized capacitor is rated for 2000V DC operation and is designed for high-frequency switching, high-pulse, DV/DT, and snubber applications. The part is currently active in production with 1052 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit alternative specifications within acceptable electrical and mechanical parameters.

Substiute Parts

DPPM20D12K-F

Cornell Dubilier Electronics (CDE)In Stock: 1153DPPM20D12K-F Datasheet

Current PartRFQ

B32672L8122J000

EPCOS - TDK ElectronicsIn Stock: 3582B32672L8122J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPPM20D12K-F is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Criteria:

• Capacitance value: 1200 pF (exact match required)
• DC voltage rating: 2000V minimum (equal or higher acceptable)
• Dielectric material: Polypropylene (PP), Metallized (required for application performance)
• Mounting type: Through Hole Radial (required for PCB compatibility)
• Termination: PC Pins (required for soldering compatibility)

Acceptable Variation Parameters:

• Tolerance: ±10% or tighter (±5% is acceptable as improved specification)
• AC voltage rating: 500V or higher (higher ratings acceptable)
• Operating temperature range: -40°C ~ 105°C or wider (extended range acceptable)
• Physical dimensions: Variation acceptable if PCB footprint accommodates lead spacing and height

The substitute part B32672L8122J000 meets all mandatory equivalence criteria and offers improved tolerance (±5% vs ±10%) and extended operating temperature range (-55°C ~ 110°C vs -40°C ~ 105°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (DPPM20D12K-F): Use the DPPM20D12K-F when the original design specifies CDE DPPM series components, when PCB layout accommodates the larger footprint (25.00mm x 7.50mm with 21.00mm lead spacing), or when design documentation explicitly requires this manufacturer and series designation. This part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Substitute Part Selection (B32672L8122J000): The B32672L8122J000 from EPCOS - TDK Electronics is electrically and functionally equivalent for applications requiring 1200 pF capacitance at 2000V DC with polypropylene metallized dielectric. This substitute is suitable when:

• PCB layout can accommodate the smaller footprint (18.00mm x 7.50mm with 15.00mm lead spacing)
• The tighter tolerance specification (±5%) is acceptable or beneficial to circuit performance
• Extended operating temperature range (-55°C ~ 110°C) provides additional environmental margin
• Higher AC voltage rating (700V vs 500V) is acceptable
• Supply chain or cost considerations favor EPCOS - TDK sourcing

Both parts are ROHS3 compliant, REACH unaffected, and rated for high-frequency switching, high-pulse, DV/DT, and snubber applications. Physical dimension differences require PCB footprint verification before substitution.

Frequently Asked Questions (FAQ)

Q: Can B32672L8122J000 be used as a direct replacement for DPPM20D12K-F on existing PCBs?

A: Electrical substitution is valid. However, physical substitution requires PCB footprint compatibility verification. The B32672L8122J000 has a smaller footprint (18.00mm x 5.00mm vs 25.00mm x 7.50mm) and different lead spacing (15.00mm vs 21.00mm). PCB layout must accommodate these dimensional differences before soldering.

Q: What are the key electrical parameters that make these parts equivalent?

A: Both parts share identical capacitance (1200 pF), DC voltage rating (2000V), dielectric material (polypropylene metallized), mounting type (through-hole radial), and termination style (PC pins). These parameters determine functional equivalence in circuit applications.

Q: Does the ±5% tolerance of B32672L8122J000 provide an advantage over the ±10% tolerance of DPPM20D12K-F?

A: The tighter ±5% tolerance of B32672L8122J000 reduces capacitance variation across the production range, which may improve circuit performance in applications sensitive to capacitance drift. However, both tolerances are acceptable for standard high-frequency and switching applications unless circuit design explicitly requires tighter tolerance control.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No regulatory or compliance barriers exist to substitution from an environmental or hazardous substance perspective.

Q: What is the significance of the extended operating temperature range of B32672L8122J000?

A: The B32672L8122J000 operates from -55°C to 110°C, compared to -40°C to 105°C for DPPM20D12K-F. The extended lower temperature limit (-55°C vs -40°C) and higher upper limit (110°C vs 105°C) provide additional environmental margin for applications exposed to extreme temperature conditions. Standard applications operating within -40°C to 105°C experience no functional difference.

Q: Can these parts be used interchangeably in snubber circuit applications?

A: Yes. Both parts are rated for snubber applications and share identical capacitance, voltage rating, and dielectric material. Electrical performance in snubber circuits is equivalent. Physical substitution requires PCB footprint verification.

Q: What inventory considerations apply to these substitute parts?

A: DPPM20D12K-F has 1052 units in stock. B32672L8122J000 has 3483 units in stock. The substitute part offers greater inventory availability, which may support procurement timelines and supply chain continuity.