DMM1P33K-F Equivalent & Substitute Parts

Part Overview

The DMM1P33K-F is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) rated for 100V DC operation with ±10% tolerance. This radial through-hole component is designed for general-purpose applications using a polyester metallized dielectric material. The part is currently active in production status with 674 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit selection of components with enhanced electrical specifications.

Substiute Parts

DMM1P33K-F

Cornell Dubilier Electronics (CDE)In Stock: 762DMM1P33K-F Datasheet

Current PartRFQ

B32522C3334J000

EPCOS - TDK ElectronicsIn Stock: 8662B32522C3334J000 Datasheet

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B32522C3334K000

EPCOS - TDK ElectronicsIn Stock: 5186B32522C3334K000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DMM1P33K-F are identified based on electrical and mechanical compatibility criteria. All substitutes must maintain identical capacitance values (0.33 µF) and operate within the same temperature range (-55°C to 125°C). The substitutes listed below are manufactured by EPCOS - TDK Electronics under the B3252* series designation.

The key parameters determining substitution eligibility are:

• Identical capacitance: 0.33 µF
• Compatible mounting: Through-hole radial configuration
• Matching lead spacing: 15.00mm
• Equal or higher voltage ratings (100V DC minimum)
• Same dielectric family: Polyester-based metallized construction
• Equivalent operating temperature range: -55°C to 125°C

The identified substitutes meet or exceed these criteria and provide enhanced voltage ratings (250V DC) compared to the original specification.

Parameter Comparison

Engineering Selection Recommendations

B32522C3334J000 (±5% Tolerance Variant): This EPCOS component features improved tolerance specifications (±5% versus ±10%) while maintaining full voltage rating equivalence (250V DC). The part is AEC-Q200 certified for automotive applications and complies with ROHS3 and REACH regulations. The reduced width (5.00mm versus 6.00mm) results in a more compact footprint suitable for space-constrained designs.

B32522C3334K000 (±10% Tolerance Variant): This EPCOS component matches the tolerance specification of the original DMM1P33K-F (±10%) while providing the same voltage upgrade and compact dimensions. The part carries AEC-Q200 certification and ROHS3/REACH compliance. Selection of this variant is appropriate for applications where tolerance matching is a design requirement.

Both EPCOS substitutes provide superior voltage ratings (250V DC versus 100V DC), enabling their use in higher-voltage circuit applications. The stacked radial construction offers enhanced stability in demanding industrial and automotive environments. Lead spacing and height specifications remain compatible with existing through-hole PCB designs.

Frequently Asked Questions (FAQ)

Q: Can B32522C3334J000 and B32522C3334K000 be used interchangeably with DMM1P33K-F?

A: Both EPCOS parts are direct substitutes in terms of capacitance value, operating temperature, mounting configuration, and lead spacing. The primary differences are enhanced voltage ratings and tolerance specifications. Either part operates safely in circuits designed for 100V DC operation. Selection between them depends on tolerance requirements: B32522C3334J000 offers ±5% tolerance, while B32522C3334K000 matches the original ±10% specification.

Q: What is the impact of the voltage rating difference?

A: The substitute parts are rated for 250V DC compared to the original 100V DC rating. This provides a higher safety margin in your application circuit. When an application requires only 100V operation, either substitute performs identically to the original component.

Q: Are there PCB layout compatibility concerns?

A: The lead spacing (15.00mm) remains identical across all three parts, ensuring direct PCB compatibility. The substitute parts are slightly narrower (5.00mm versus 6.00mm), which offers a footprint advantage on constrained board designs. Height specifications (10.50mm seated) are consistent across all variants.

Q: What certifications apply to the substitute parts?

A: Both B32522C3334J000 and B32522C3334K000 carry AEC-Q200 qualification for automotive applications, ROHS3 compliance, and REACH unaffected status. The original DMM1P33K-F is ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

Q: How do tolerance specifications affect circuit performance?

A: The B32522C3334J000 provides ±5% tolerance (tighter range), while B32522C3334K000 and the original DMM1P33K-F both specify ±10% tolerance. In applications where capacitance accuracy is critical, the ±5% variant offers improved precision. For general-purpose filtering and coupling applications, all three parts perform identically within typical circuit tolerances.

Q: Is the stacked radial construction of EPCOS substitutes a limiting factor?

A: The stacked radial design of the EPCOS components indicates a more compact internal structure without affecting external electrical or mechanical interface specifications. This construction method is industry standard for automotive-qualified film capacitors and provides enhanced environmental stability.