DPM2P1K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPM2P1K is a 0.1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 250V DC voltage rating and ±10% tolerance. This component is designed for DC link, DC filtering, and high-frequency switching applications. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning.

Substiute Parts

DPM2P1K

Cornell Dubilier Electronics (CDE)In Stock: 1107DPM2P1K Datasheet

Current PartRFQ

DPM2P1K-F

Cornell Dubilier Electronics (CDE)In Stock: 725DPM2P1K-F Datasheet

DirectRFQ

B32521C3104K000

EPCOS - TDK ElectronicsIn Stock: 55402B32521C3104K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute relationships for the DPM2P1K are established based on the following critical parameters that must align for functional equivalence:

Primary Matching Criteria:

• Capacitance value: 0.1 µF (exact match required)
• Voltage rating: 250V DC minimum / 160V AC minimum
• Tolerance: ±10%
• Mounting type: Through Hole Radial
• Lead spacing: 0.394" (10.00mm)
• Termination: PC Pins

Acceptable Variations:

• Dielectric material (Polypropylene vs. Polyester)
• Physical dimensions (height and width may differ within PCB layout constraints)
• Operating temperature range (higher maximum temperature acceptable)
• Product status (Active substitutes preferred for obsolete parts)
• RoHS compliance status

The DPM2P1K-F is a direct manufacturer equivalent from CDE with identical electrical specifications but improved compliance status. The B32521C3104K000 from EPCOS - TDK Electronics is a similar substitute with equivalent electrical performance but different dielectric material and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

DPM2P1K-F (Direct Equivalent - Preferred for Direct Replacement)

The DPM2P1K-F is the primary substitute for the obsolete DPM2P1K. This part maintains identical electrical specifications, physical dimensions, and lead spacing. The DPM2P1K-F is manufactured by the same supplier (CDE) and carries Active product status with ROHS3 compliance, making it suitable for new designs and legacy system support. The identical form factor ensures direct PCB compatibility without layout modifications.

B32521C3104K000 (Alternative Substitute - Conditional Use)

The B32521C3104K000 from EPCOS - TDK Electronics meets all critical electrical requirements: 0.1 µF capacitance, 250V DC rating, ±10% tolerance, and 10.00mm lead spacing. This part differs in dielectric material (Polyester vs. Polypropylene) and physical dimensions. The B32521C3104K000 features a significantly smaller height (7.00mm vs. 14.00mm) and width (4.00mm vs. 8.00mm), which may require PCB layout verification. The extended operating temperature range (-55°C ~ 125°C) and AEC-Q200 automotive rating provide additional performance margin. This substitute is suitable when PCB space constraints permit the smaller form factor and when dielectric material substitution is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can the DPM2P1K-F be used as a direct replacement for the DPM2P1K?

A: Yes. The DPM2P1K-F is a direct equivalent with identical capacitance (0.1 µF), voltage ratings (250V DC / 160V AC), tolerance (±10%), physical dimensions, and lead spacing (10.00mm). No circuit modifications or PCB layout changes are required.

Q: What is the primary difference between DPM2P1K-F and B32521C3104K000?

A: Both parts meet the electrical specifications of the original DPM2P1K. The DPM2P1K-F uses Polypropylene dielectric and maintains the original physical dimensions (13.00mm x 8.00mm, height 14.00mm). The B32521C3104K000 uses Polyester dielectric and has a smaller form factor (13.00mm x 4.00mm, height 7.00mm). Lead spacing remains identical at 10.00mm for both.

Q: Is the B32521C3104K000 suitable for my application if space is limited?

A: The B32521C3104K000 can be used if the smaller physical dimensions (height 7.00mm vs. 14.00mm, width 4.00mm vs. 8.00mm) are compatible with your PCB layout and if Polyester dielectric material is acceptable for your circuit requirements. Verify that the reduced height does not create clearance issues with adjacent components.

Q: What is the significance of the RoHS compliance difference?

A: The DPM2P1K is RoHS non-compliant, while both DPM2P1K-F and B32521C3104K000 are ROHS3 compliant. For new designs or systems subject to RoHS regulations, the compliant substitutes are required. For legacy system maintenance, either part may be used depending on regulatory requirements.

Q: Are there any temperature rating considerations when selecting a substitute?

A: The DPM2P1K and DPM2P1K-F both operate from -55°C to 105°C. The B32521C3104K000 extends the upper limit to 125°C. If your application operates near or above 105°C, the B32521C3104K000 provides additional thermal margin. For applications within the -55°C to 105°C range, all three parts are equivalent.

Q: Can I use the B32521C3104K000 in automotive applications?

A: Yes. The B32521C3104K000 carries AEC-Q200 automotive qualification, making it suitable for automotive environments. The DPM2P1K and DPM2P1K-F do not carry automotive ratings but can be used in non-automotive applications.

Q: What inventory considerations should I account for?

A: The DPM2P1K (obsolete) has 1031 units in stock. The DPM2P1K-F (active) has 646 units available. The B32521C3104K000 has the largest inventory at 55,367 units. For long-term procurement planning, the B32521C3104K000 offers the most reliable supply availability.