DPPM20D39K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPPM20D39K-F is a 3900 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 2000V DC voltage rating and polypropylene metallized dielectric. This radial through-hole component is designed for high-frequency switching applications, high-pulse environments, and snubber circuits. The part maintains Active product status with 775 units in current inventory.

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this capacitor category, ensuring functional compatibility in target applications.

Substiute Parts

DPPM20D39K-F

Cornell Dubilier Electronics (CDE)In Stock: 815DPPM20D39K-F Datasheet

Current PartRFQ

B32672L8392J000

EPCOS - TDK ElectronicsIn Stock: 10869B32672L8392J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPPM20D39K-F are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Mandatory Matching Parameters:

• Capacitance value: 3900 pF (exact match required)
• Voltage Rating - DC: 2000V minimum (equal or higher acceptable)
• Dielectric Material: Polypropylene (PP), Metallized (must remain consistent)
• Mounting Type: Through Hole, Radial (physical compatibility requirement)

Compatible Variation Parameters:

• Tolerance: Substitutes with ±5% tolerance are compatible with ±10% specification
• Operating Temperature Range: Substitutes with extended range (-55°C ~ 110°C) exceed minimum requirements
• Voltage Rating - AC: Higher AC voltage ratings provide additional margin
• Physical dimensions: Smaller package footprints are acceptable for through-hole radial mounting

Compliance Requirements:

• RoHS3 Compliant status must be maintained
• REACH Unaffected status must be maintained

Parameter Comparison

Engineering Selection Recommendations

B32672L8392J000 as Substitute for DPPM20D39K-F:

The B32672L8392J000 meets all mandatory electrical specifications for substitution. Both parts share identical capacitance (3900 pF), DC voltage rating (2000V), and dielectric material (polypropylene metallized). The substitute part provides enhanced performance margins through tighter tolerance (±5% versus ±10%) and extended operating temperature range (-55°C ~ 110°C versus -40°C ~ 105°C).

Both parts maintain Active product status and full regulatory compliance (ROHS3 Compliant, REACH Unaffected). The substitute is manufactured by EPCOS - TDK Electronics, a qualified alternative source with 10,791 units in inventory.

Physical Compatibility Consideration:

The substitute part has different lead spacing (0.591" versus 0.827") and smaller overall dimensions. PCB layout verification is required to confirm that the substitute's lead spacing aligns with existing through-hole positions. The reduced physical size of the substitute may provide space optimization benefits in compact circuit designs.

Frequently Asked Questions (FAQ)

Q: Can B32672L8392J000 be used as a direct replacement for DPPM20D39K-F in existing designs?

A: Electrical substitution is valid. The substitute meets all mandatory electrical parameters: 3900 pF capacitance, 2000V DC rating, and polypropylene metallized dielectric. However, PCB layout modification is necessary due to different lead spacing (0.591" versus 0.827"). Physical board redesign or adapter solutions may be required.

Q: What is the significance of the tolerance difference (±5% versus ±10%)?

A: The substitute part has tighter tolerance, meaning its actual capacitance value will be closer to the nominal 3900 pF specification. This provides improved circuit performance consistency. A ±5% tolerance part is fully compatible with designs specified for ±10% tolerance.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: No. The substitute's operating range (-55°C ~ 110°C) exceeds the main part's range (-40°C ~ 105°C). This provides additional environmental margin and is fully compatible with applications designed for the original part's temperature specifications.

Q: Are there any regulatory or compliance concerns with substitution?

A: Both parts maintain identical compliance status: ROHS3 Compliant and REACH Unaffected. No regulatory barriers exist for substitution from a compliance perspective.

Q: What is the impact of the smaller physical dimensions?

A: The substitute is significantly smaller (18.00mm x 5.00mm versus 25.00mm x 11.00mm) and lower profile (10.50mm versus 20.50mm height). This allows potential space optimization in PCB layouts. However, the different lead spacing requires PCB redesign or mechanical adaptation.

Q: Which part should be selected for new designs?

A: Selection depends on PCB layout constraints and lead spacing requirements. For new designs without existing PCB constraints, B32672L8392J000 offers advantages through tighter tolerance, extended temperature range, and smaller footprint. For existing designs with fixed PCB layouts, DPPM20D39K-F maintains compatibility with current board specifications.

Q: Is inventory availability a factor in part selection?

A: B32672L8392J000 has significantly higher inventory (10,791 units) compared to DPPM20D39K-F (775 units). For high-volume production or long-term supply chain planning, the substitute part offers better availability.