DMM6W1K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DMM6W1K-F is a 1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 630V DC voltage rating and ±10% tolerance. This radial through-hole component utilizes polyester metallized dielectric technology and operates across a temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and is suitable for general-purpose applications requiring high voltage film capacitor performance.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits equivalent alternatives from qualified manufacturers. The following substitute parts maintain electrical equivalence while offering alternative physical configurations or manufacturer sourcing options.

Substiute Parts

DMM6W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1042DMM6W1K-F Datasheet

Current PartRFQ

DME6W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 996DME6W1K-F Datasheet

DirectRFQ

QXK2J105KTP

NichiconIn Stock: 5466QXK2J105KTP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DMM6W1K-F is determined by strict electrical and mechanical parameter matching:

Electrical Equivalence Criteria:

• Capacitance value: 1 µF (exact match required)
• DC voltage rating: 630V minimum
• AC voltage rating: 250V minimum
• Tolerance: ±10% or tighter
• Dielectric type: Polyester, Metallized (maintains frequency response and ESR characteristics)

Mechanical Compatibility Criteria:

• Mounting type: Through Hole (radial configuration)
• Lead spacing: 1.083" (27.50mm) center-to-center
• Termination: PC Pins (standard wave soldering compatible)
• Package case: Radial

Regulatory Compliance:

• RoHS3 compliance required
• REACH Unaffected status maintained

All substitute parts listed below satisfy these criteria. Physical dimensions (length, width, height) may vary within the radial package envelope without affecting electrical performance or PCB mounting compatibility, provided lead spacing remains constant.

Parameter Comparison

Engineering Selection Recommendations

DME6W1K-F (Cornell Dubilier Electronics):

The DME6W1K-F represents a direct manufacturer alternative within the CDE product portfolio. This part maintains identical electrical specifications (1 µF, 630V DC, ±10% tolerance, polyester metallized dielectric) and operating temperature range (-55°C to 125°C). The primary distinction is physical packaging: the DME6W1K-F features a more compact radial envelope (0.512" width versus 0.689" width) while preserving the critical 1.083" lead spacing for PCB compatibility. Both parts carry ROHS3 compliance and Active product status. Selection of the DME6W1K-F is appropriate when space constraints on the PCB favor a narrower component profile without compromising electrical performance.

QXK2J105KTP (Nichicon):

The QXK2J105KTP from Nichicon's QXK series provides electrical equivalence across all critical parameters: 1 µF capacitance, 630V DC rating, ±10% tolerance, and polyester metallized construction. This part maintains the required 1.083" lead spacing and through-hole radial configuration. The operating temperature range differs slightly (-40°C to 105°C versus -55°C to 125°C for the DMM6W1K-F), representing a narrower specification suitable for applications not requiring the extended low-temperature performance of the primary part. The QXK2J105KTP carries ROHS3 compliance and Active product status. This substitute is appropriate for applications where Nichicon sourcing is preferred or when the narrower temperature range is acceptable for the intended application environment.

Frequently Asked Questions (FAQ)

Q: Can the DME6W1K-F be used as a direct replacement for the DMM6W1K-F on existing PCBs?

A: Yes. Both parts share identical lead spacing (1.083" / 27.50mm), termination type (PC Pins), and mounting configuration (through-hole radial). The DME6W1K-F features a narrower physical profile but occupies the same footprint. No PCB redesign is required.

Q: What is the primary difference between the DMM6W1K-F and DME6W1K-F?

A: Both are Cornell Dubilier products with identical electrical specifications. The DME6W1K-F has a more compact radial package (0.512" width versus 0.689" width). Electrical performance, voltage ratings, capacitance, tolerance, and temperature range are identical.

Q: Is the QXK2J105KTP suitable for applications requiring -55°C operation?

A: No. The QXK2J105KTP operates from -40°C to 105°C. Applications requiring -55°C minimum operating temperature must use the DMM6W1K-F or DME6W1K-F, which both specify -55°C to 125°C operation.

Q: Do all three parts meet RoHS3 compliance requirements?

A: Yes. The DMM6W1K-F, DME6W1K-F, and QXK2J105KTP all carry ROHS3 Compliant status and REACH Unaffected designation.

Q: Can these parts be used interchangeably in high-temperature applications above 105°C?

A: Only the DMM6W1K-F and DME6W1K-F are rated to 125°C. The QXK2J105KTP maximum operating temperature is 105°C. For applications requiring operation above 105°C, use CDE parts only.

Q: Are there any lead spacing differences that would affect PCB compatibility?

A: No. All three parts maintain the same 1.083" (27.50mm) lead spacing. PCB footprints designed for any of these parts are compatible with all three.

Q: What is the significance of the different physical dimensions among these parts?

A: Physical dimensions (length, width, height) vary due to different manufacturer design approaches and packaging efficiency. These dimensional differences do not affect electrical performance or PCB mounting compatibility, provided lead spacing remains constant at 1.083".