DMT1P33K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMT1P33K is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating and ±10% tolerance. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing procurement and system maintenance. The DMT1P33K features a polyester metallized dielectric construction in a radial through-hole package, suitable for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C.

Substiute Parts

DMT1P33K

Cornell Dubilier Electronics (CDE)In Stock: 1008DMT1P33K Datasheet

Current PartRFQ

DMT1P33K-F

Cornell Dubilier Electronics (CDE)In Stock: 1014DMT1P33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMT1P33K is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for capacitance value, tolerance, voltage ratings (both AC and DC), dielectric material composition, operating temperature range, and physical dimensions including lead spacing and package configuration.

The DMT1P33K-F qualifies as a direct substitute based on the following criteria:

• Identical capacitance: 0.33 µF
• Identical tolerance: ±10%
• Identical voltage ratings: 100V DC / 65V AC
• Identical dielectric: Polyester, Metallized
• Identical temperature range: -55°C to 125°C
• Identical mounting and package: Through-hole radial with PC pins
• Identical physical dimensions and lead spacing
• Same manufacturer: Cornell Dubilier Electronics (CDE)
• Same series: DMT

The primary distinction between the main part and substitute is product status and compliance certification, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The DMT1P33K-F is the direct equivalent substitute for the obsolete DMT1P33K. Both components are manufactured by Cornell Dubilier Electronics within the same DMT series and share identical electrical and mechanical specifications.

Selection of DMT1P33K-F over the main part is justified by the following factors:

Product Status: The DMT1P33K-F maintains active product status, ensuring continued availability and manufacturer support. The DMT1P33K is classified as obsolete, limiting future procurement options.

Regulatory Compliance: The DMT1P33K-F is RoHS3 compliant, meeting current environmental and hazardous substance restrictions. The DMT1P33K is RoHS non-compliant, which may present procurement restrictions in regulated markets and applications.

Functional Equivalence: All electrical parameters, mechanical dimensions, and performance characteristics are identical between the two parts. No circuit redesign or board layout modification is required for substitution.

Packaging: The DMT1P33K-F is supplied in bulk packaging, which may differ from the original part's packaging configuration but does not affect component performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can DMT1P33K-F be used as a direct replacement for DMT1P33K in existing designs?

A: Yes. The DMT1P33K-F is electrically and mechanically identical to the DMT1P33K. All specifications including capacitance, voltage ratings, tolerance, dielectric material, operating temperature range, and physical dimensions are equivalent. No circuit modifications or board layout changes are required.

Q: What is the difference between DMT1P33K and DMT1P33K-F?

A: The primary differences are product status and compliance certification. The DMT1P33K is obsolete and RoHS non-compliant. The DMT1P33K-F is an active product that is RoHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts have identical dimensions of 0.941" L x 0.390" W (23.90mm x 9.90mm), maximum seated height of 0.654" (16.60mm), and lead spacing of 0.795" (20.20mm). PCB footprints and mounting requirements are identical.

Q: Does the packaging difference affect component performance?

A: No. The DMT1P33K-F is supplied in bulk packaging, while the original part may have used different packaging. Packaging affects logistics and handling but does not alter electrical performance or component specifications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the DMT1P33K and DMT1P33K-F operate across the identical temperature range of -55°C to 125°C with stable capacitance characteristics.

Q: What are the voltage rating specifications for both parts?

A: Both parts have identical voltage ratings of 100V DC and 65V AC. They are suitable for applications requiring these voltage specifications.

Q: Is the ±10% tolerance maintained in the substitute part?

A: Yes. The DMT1P33K-F maintains the identical ±10% tolerance specification as the original DMT1P33K.