Equivalent & Substitute Parts for DMM2W1K-F Film Capacitor

Part Overview

The DMM2W1K-F is a 1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 250V DC operation with ±10% tolerance. This radial through-hole component utilizes polyester metallized dielectric technology and operates across the 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 reliable capacitive filtering and energy storage.

Substitute parts become necessary when the primary part experiences inventory constraints, extended lead times, or when design requirements permit alternative electrical or mechanical specifications. The following equivalent and substitute components maintain functional compatibility while offering variations in physical dimensions, tolerance grades, voltage ratings, or manufacturer sourcing.

Substiute Parts

DMM2W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1165DMM2W1K-F Datasheet

Current PartRFQ

160105K250N-F

Cornell Dubilier Electronics (CDE)In Stock: 1741160105K250N-F Datasheet

DirectRFQ

160105J250N-F

Cornell Dubilier Electronics (CDE)In Stock: 1211160105J250N-F Datasheet

UpgradeRFQ

DME2W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 4681DME2W1K-F Datasheet

SimilarRFQ

B32523Q3105K000

EPCOS - TDK ElectronicsIn Stock: 9368B32523Q3105K000 Datasheet

DirectRFQ

B32523Q6105K000

EPCOS - TDK ElectronicsIn Stock: 2097B32523Q6105K000 Datasheet

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B32522C3105K000

EPCOS - TDK ElectronicsIn Stock: 10749B32522C3105K000 Datasheet

SimilarRFQ

B32522N3105K000

EPCOS - TDK ElectronicsIn Stock: 5593B32522N3105K000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the DMM2W1K-F is based on strict electrical and mechanical parameter matching. All substitute parts must maintain the following core requirements:

Electrical Requirements:

• Capacitance: 1 µF (exact match)
• Voltage Rating DC: 250V minimum
• Voltage Rating AC: 160V minimum
• Tolerance: ±10% or tighter
• Dielectric: Polyester or polyester-based metallized film

Mechanical Requirements:

• Mounting: Through-hole radial configuration
• Lead spacing: 0.886" (22.50mm) or compatible with 0.591" (15.00mm) alternatives for compact designs
• Termination: PC pins
• Package: Radial

Compliance Requirements:

• ROHS3 compliant
• REACH unaffected
• Active product status

Substitutes are categorized as follows:

Direct Equivalents: Parts with identical electrical specifications and lead spacing (0.886" / 22.50mm), differing only in series designation or minor dimensional variations that do not affect PCB mounting.

Upgrade Substitutes: Parts offering improved specifications (tighter tolerance, higher voltage rating) while maintaining core electrical parameters and mounting compatibility.

Similar Substitutes: Parts with identical electrical specifications but different physical dimensions and lead spacing (0.591" / 15.00mm), suitable for designs permitting compact footprint alternatives.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Lead Spacing 0.886" / 22.50mm):

The 160105K250N-F and 160105J250N-F from CDE maintain identical lead spacing and mounting footprint as the DMM2W1K-F. The 160105K250N-F operates at a reduced upper temperature limit of 105°C compared to the original 125°C specification. The 160105J250N-F offers tighter ±5% tolerance while maintaining the same temperature constraint. Both parts are ROHS3 compliant and suitable for direct PCB substitution.

The B32523Q3105K000 from EPCOS - TDK Electronics provides equivalent electrical specifications with identical lead spacing. This part carries AEC-Q200 automotive qualification and is suitable for applications requiring automotive-grade reliability. The B32523Q6105K000 offers upgraded voltage rating (400V DC / 200V AC) while maintaining the same lead spacing, providing design margin for higher voltage applications.

For Compact Footprint Designs (Lead Spacing 0.591" / 15.00mm):

The DME2W1K-F from CDE and B32522C3105K000 / B32522N3105K000 from EPCOS - TDK Electronics provide reduced physical dimensions with 0.591" lead spacing. These parts are suitable only for PCB designs accommodating the compact footprint. The DME2W1K-F maintains the full -55°C to 125°C temperature range. The EPCOS parts include AEC-Q200 automotive qualification.

Compliance and Product Status:

All substitute parts maintain Active product status, ROHS3 compliance, and REACH unaffected designation. Selection should prioritize parts with highest current inventory availability and shortest lead times while maintaining electrical and mechanical compatibility with the target application.

Frequently Asked Questions (FAQ)

Q: Can the 160105J250N-F replace the DMM2W1K-F directly on the PCB?

A: Yes. The 160105J250N-F maintains identical lead spacing (0.886" / 22.50mm) and mounting type. The ±5% tolerance is tighter than the original ±10%, providing improved capacitance accuracy. The reduced upper operating temperature (105°C vs. 125°C) must be verified against application requirements.

Q: What is the difference between the DME2W1K-F and DMM2W1K-F?

A: Both parts are manufactured by CDE with identical electrical specifications (1 µF, ±10%, 250V DC, 160V AC, -55°C to 125°C). The primary difference is physical size: the DME2W1K-F has a compact footprint with 0.591" lead spacing, while the DMM2W1K-F uses standard 0.886" lead spacing. PCB hole pattern compatibility must be verified before substitution.

Q: Are EPCOS B32523Q and B32522 series parts compatible with the DMM2W1K-F?

A: The B32523Q3105K000 is directly compatible, maintaining identical lead spacing (0.886" / 22.50mm) and electrical specifications. The B32522 series parts (B32522C3105K000 and B32522N3105K000) feature compact 0.591" lead spacing and are compatible only with PCB designs accommodating this footprint. All EPCOS parts carry AEC-Q200 automotive qualification.

Q: Can the B32523Q6105K000 (400V rated) be used in place of the DMM2W1K-F (250V rated)?

A: Yes. The B32523Q6105K000 exceeds the voltage requirements (400V DC vs. 250V DC required) and maintains identical lead spacing and capacitance. Higher voltage rating provides additional design margin. This substitution is suitable for applications where the higher voltage rating does not create cost or space constraints.

Q: What is the significance of the AEC-Q200 rating on EPCOS parts?

A: AEC-Q200 is an automotive qualification standard indicating the part meets reliability and performance requirements for automotive applications. This certification is not required for general-purpose applications but indicates higher quality assurance standards. Parts without this rating remain suitable for non-automotive general-purpose use.

Q: How do I determine if a substitute part with different lead spacing will work?

A: Lead spacing compatibility depends entirely on PCB hole pattern design. The DMM2W1K-F uses 0.886" (22.50mm) spacing. Substitutes with 0.591" (15.00mm) spacing require PCB designs specifically accommodating this footprint. Physical measurement of existing PCB hole patterns is required before selecting compact footprint alternatives.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.