DPPM10S18K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPPM10S18K-F is a 0.018 µF metallized polypropylene film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 1000V DC and 450V AC operation. This radial through-hole component is designed for high-frequency switching applications, pulse circuits, and snubber functions. The part maintains Active product status with 732 units in current inventory stock.

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

Substiute Parts

DPPM10S18K-F

Cornell Dubilier Electronics (CDE)In Stock: 824DPPM10S18K-F Datasheet

Current PartRFQ

B32642B0183J

EPCOS - TDK ElectronicsIn Stock: 4490B32642B0183J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DPPM10S18K-F is determined by strict alignment with the following electrical and mechanical criteria:

Mandatory Matching Parameters:

• Capacitance value: 0.018 µF (exact match required)
• Dielectric type: Polypropylene (PP), Metallized (exact match required)
• Mounting configuration: Through Hole, Radial (exact match required)
• DC voltage rating: 1000V minimum (equal or higher acceptable)
• AC voltage rating: 450V minimum (equal or higher acceptable)

Acceptable Variation Parameters:

• Tolerance: ±10% or tighter (±5% is acceptable as it is more stringent)
• Operating temperature range: Must support the application's thermal requirements
• Physical dimensions: May vary within PCB layout constraints
• Lead spacing: May vary if board layout permits

Compliance Requirements:

• RoHS3 compliance mandatory
• REACH Unaffected status required
• ECCN and HTSUS classifications must align with export/import regulations

The substitute part B32642B0183J meets all mandatory criteria with improved tolerance specification (±5%) and equivalent voltage ratings, making it functionally interchangeable for the specified applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: DPPM10S18K-F

The DPPM10S18K-F remains the specified component when:

• Original design validation has been completed with this specific part
• Inventory availability is not a constraint (732 units in stock)
• The operating temperature maximum of 105°C is required for the application
• Design documentation explicitly references the CDE DPPM series

Substitute Part: B32642B0183J

The B32642B0183J is electrically and mechanically interchangeable when:

• The application operating temperature does not exceed 100°C
• Higher AC voltage rating (600V vs. 450V) provides additional design margin
• Tighter tolerance specification (±5% vs. ±10%) improves circuit performance predictability
• Larger inventory availability (4417 units) supports production scheduling
• Both parts maintain identical RoHS3 and REACH compliance status
• Both parts carry identical ECCN and HTSUS classifications for regulatory purposes

Physical Dimension Consideration:

The substitute part B32642B0183J has smaller physical dimensions (18.00mm L x 5.00mm W vs. 31.00mm L x 10.00mm W) and different lead spacing (15.00mm vs. 26.50mm). PCB layout verification is required to confirm the substitute fits within the available board space and maintains proper lead-to-pad alignment.

Frequently Asked Questions (FAQ)

Q: Can B32642B0183J be used as a direct drop-in replacement for DPPM10S18K-F?

A: Electrical substitution is valid. However, physical dimensions and lead spacing differ. PCB layout must be verified to confirm the smaller package (18.00mm x 5.00mm with 15.00mm lead spacing) fits the existing footprint designed for the larger DPPM10S18K-F (31.00mm x 10.00mm with 26.50mm lead spacing). If the PCB layout cannot accommodate the smaller package, mechanical adaptation is not possible.

Q: What is the tolerance difference between these parts, and does it matter?

A: The DPPM10S18K-F has ±10% tolerance, while B32642B0183J has ±5% tolerance. The substitute's tighter tolerance means capacitance values will be closer to the nominal 0.018 µF specification. For high-frequency and switching applications, this tighter tolerance may improve circuit performance and reduce variation between production units. Both tolerances are acceptable for the specified applications.

Q: Are the voltage ratings truly equivalent?

A: Both parts are rated 1000V DC. The substitute B32642B0183J has a higher AC rating (600V vs. 450V). This means the substitute can handle higher AC stress without derating. For applications operating at or near 450V AC, the substitute provides additional safety margin. The DC rating equivalence ensures both parts function identically in DC link and filtering applications.

Q: What is the temperature range impact?

A: The DPPM10S18K-F operates from -40°C to 105°C. The B32642B0183J operates from -55°C to 100°C. The substitute covers lower temperatures but has a 5°C lower maximum. If the application requires operation above 100°C, the original DPPM10S18K-F must be used. For applications with maximum operating temperature of 100°C or below, both parts are suitable.

Q: Do both parts have the same regulatory compliance?

A: Yes. Both parts are ROHS3 compliant, REACH Unaffected, classified as EAR99 for export control, and share the same HTSUS code (8532.25.0070). No regulatory or compliance differences exist between the two parts.

Q: Which part should be selected for new designs?

A: For new designs, either part is acceptable based on application requirements. The B32642B0183J (EPCOS - TDK Electronics) offers tighter tolerance and higher AC voltage rating. The DPPM10S18K-F (Cornell Dubilier Electronics) offers higher maximum operating temperature. Selection should be based on specific thermal and tolerance requirements of the target application, as well as PCB layout constraints related to physical dimensions.