DMT4P1K Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMT4P1K is a 0.1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 400V DC voltage rating, designed for general-purpose applications requiring polyester metallized dielectric construction. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

DMT4P1K

Cornell Dubilier Electronics (CDE)In Stock: 713DMT4P1K Datasheet

Current PartRFQ

DMT4P1K-F

Cornell Dubilier Electronics (CDE)In Stock: 2751DMT4P1K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete DMT4P1K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Electrical Parameters:

• Capacitance value: 0.1 µF
• Tolerance: ±10%
• Voltage rating (DC): 400V
• Voltage rating (AC): 200V
• Dielectric material: Polyester, Metallized

Mechanical Parameters:

• Mounting type: Through Hole
• Package configuration: Radial
• Lead spacing: 0.732" (18.60mm)
• Physical dimensions: 0.882" L x 0.472" W
• Maximum seated height: 0.763"
• Termination style: PC Pins

Environmental Parameters:

• Operating temperature range: -55°C to 125°C

The substitute part must be manufactured by Cornell Dubilier Electronics (CDE) within the DMT series to ensure design compatibility and performance equivalence.

Parameter Comparison

Engineering Selection Recommendations

The DMT4P1K-F is the direct active equivalent for the obsolete DMT4P1K. Selection of this substitute part is based on the following engineering criteria:

Product Status Alignment: The DMT4P1K-F maintains active production status, ensuring continued availability and supply chain reliability compared to the obsolete DMT4P1K.

Electrical and Mechanical Equivalence: All critical parameters—capacitance, voltage ratings, dielectric material, operating temperature range, mounting configuration, and physical dimensions—are identical between the main part and substitute, ensuring drop-in compatibility in existing circuit designs.

Regulatory Compliance Enhancement: The DMT4P1K-F achieves ROHS3 compliance, whereas the original DMT4P1K is RoHS non-compliant. This upgrade path supports compliance requirements for new production applications while maintaining full functional equivalence.

Inventory Availability: The DMT4P1K-F is available in significantly higher quantities (2731 pcs) compared to the obsolete part (641 pcs), supporting both immediate procurement needs and long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can the DMT4P1K-F be used as a direct replacement for the DMT4P1K in existing designs?

A: Yes. The DMT4P1K-F is electrically and mechanically identical to the DMT4P1K across all specified parameters, including capacitance, voltage ratings, dielectric material, operating temperature range, and physical dimensions. No circuit modifications are required.

Q: What is the difference between DMT4P1K and DMT4P1K-F?

A: The primary differences are product status and regulatory compliance. The DMT4P1K is obsolete and RoHS non-compliant, while the DMT4P1K-F is an active product with ROHS3 compliance. All electrical and mechanical specifications are identical.

Q: Are the physical dimensions and lead spacing identical?

A: Yes. Both parts share identical dimensions (0.882" L x 0.472" W), maximum seated height (0.763"), and lead spacing (0.732"). PCB layout modifications are not required when substituting the DMT4P1K-F for the DMT4P1K.

Q: Does the DMT4P1K-F meet RoHS requirements?

A: Yes. The DMT4P1K-F is ROHS3 compliant, making it suitable for applications requiring RoHS certification. The original DMT4P1K is RoHS non-compliant.

Q: What packaging options are available for the DMT4P1K-F?

A: The DMT4P1K-F is supplied in bulk packaging, suitable for production environments requiring standard component quantities.

Q: Are there any temperature or voltage derating considerations when using the DMT4P1K-F?

A: No. The DMT4P1K-F maintains the identical operating temperature range (-55°C to 125°C) and voltage ratings (400V DC, 200V AC) as the original DMT4P1K. No derating adjustments are necessary.