DPPM12S33K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DPPM12S33K is a 0.033 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 1200V DC and 475V AC operation. This component is designed for high-frequency switching applications, high-pulse environments, and snubber circuits utilizing polypropylene metallized dielectric technology with radial through-hole mounting.

The DPPM12S33K is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

DPPM12S33K

Cornell Dubilier Electronics (CDE)In Stock: 851DPPM12S33K Datasheet

Current PartRFQ

DPPM12S33K-F

Cornell Dubilier Electronics (CDE)In Stock: 1163DPPM12S33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DPPM12S33K is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 0.033 µF
• Capacitance tolerance: ±10%
• Voltage rating - DC: 1200V (1.2kV)
• Voltage rating - AC: 475V
• Dielectric material: Polypropylene (PP), Metallized

Mechanical Parameters:

• Mounting type: Through Hole
• Package / Case: Radial
• Physical dimensions: 1.220" L x 0.551" W (31.00mm x 14.00mm)
• Height - Seated (Max): 0.925" (23.50mm)
• Lead spacing: 1.043" (26.50mm)
• Termination: PC Pins

Environmental Parameters:

• Operating temperature range: -40°C ~ 105°C
• Moisture sensitivity level: 1 (Unlimited)

A substitute part must match all electrical, mechanical, and environmental parameters listed above. Compliance certifications (RoHS, REACH) and product status (Active vs. Obsolete) are documented but do not disqualify substitution based on functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

DPPM12S33K-F as Direct Substitute:

The DPPM12S33K-F is a direct functional equivalent to the DPPM12S33K. All electrical, mechanical, and environmental parameters are identical. Both components are manufactured by Cornell Dubilier Electronics within the DPPM series and are rated for identical capacitance, voltage, temperature, and physical specifications.

The DPPM12S33K-F differs from the main part in two aspects:

1. Product Status: The DPPM12S33K-F is classified as Active, whereas the DPPM12S33K is Obsolete. This ensures long-term supply chain availability and continued manufacturing support.

2. RoHS Compliance: The DPPM12S33K-F is ROHS3 Compliant, while the DPPM12S33K is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements.

Both components maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL) classification.

For applications where RoHS compliance is not a requirement, either part is functionally interchangeable. For new designs or systems requiring RoHS compliance, the DPPM12S33K-F is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the DPPM12S33K-F be used as a direct replacement for the DPPM12S33K?

A: Yes. The DPPM12S33K-F is electrically and mechanically identical to the DPPM12S33K. All critical parameters—capacitance, voltage ratings, dielectric material, physical dimensions, lead spacing, and operating temperature range—are equivalent. The components are pin-compatible and functionally interchangeable in circuit applications.

Q: What is the difference between the DPPM12S33K and DPPM12S33K-F?

A: The primary differences are product status and RoHS compliance. The DPPM12S33K is obsolete and RoHS non-compliant. The DPPM12S33K-F is an active product and ROHS3 Compliant. Functionally, both components are identical.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. RoHS compliance relates to material composition and manufacturing standards, not electrical performance. Both components deliver identical electrical characteristics and performance in circuit applications.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both the DPPM12S33K and DPPM12S33K-F share identical physical dimensions (1.220" L x 0.551" W / 31.00mm x 14.00mm), height (0.925" / 23.50mm), and lead spacing (1.043" / 26.50mm). They are mechanically interchangeable and require no PCB layout modifications.

Q: What applications are these capacitors suitable for?

A: Both components are rated for high-frequency switching applications, high-pulse environments with high DV/DT characteristics, and snubber circuits. The 1200V DC and 475V AC ratings support high-voltage switching topologies and power conversion applications.

Q: Is inventory availability a consideration for selection?

A: The DPPM12S33K-F has higher current inventory (1099 Pcs) compared to the DPPM12S33K (784 Pcs). For new procurement, the DPPM12S33K-F offers improved supply chain availability due to its active product status.

Q: Can these capacitors be used in applications requiring RoHS compliance?

A: Only the DPPM12S33K-F is ROHS3 Compliant and suitable for applications with RoHS regulatory requirements. The DPPM12S33K is RoHS non-compliant and should not be used in such applications.