DME1W1K-F Film Capacitor Equivalent & Substitute Parts

Part Overview

The DME1W1K-F is a 1 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the DME series. This through-hole radial component is rated for 100V DC operation with polyester metallized dielectric construction. The part is Active in product status with 1133 units currently in stock. Film capacitors of this specification are used in general-purpose applications requiring stable capacitance and low ESR characteristics across industrial and commercial temperature ranges.

Substitute parts are identified when electrical parameters remain within specification tolerances and mechanical compatibility permits direct board-level replacement or functional equivalence in circuit design.

Substiute Parts

DME1W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1200DME1W1K-F Datasheet

Current PartRFQ

DMT1W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1933DMT1W1K-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DME1W1K-F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 1 µF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage Rating - DC: 100V (minimum requirement; higher ratings acceptable)
• Voltage Rating - AC: 65V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester, Metallized (material class must match)
• Operating Temperature Range: -55°C to 125°C (minimum required span)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (required for PCB compatibility)
• Package Type: Radial (required for lead configuration)
• Termination: PC Pins (required for soldering compatibility)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant (regulatory requirement)
• REACH Status: REACH Unaffected (regulatory requirement)

The DMT1W1K-F meets all electrical and compliance criteria for substitution. Physical dimensions differ (larger case size and lead spacing), which may affect board layout compatibility but does not prevent functional substitution in applications where space permits.

Parameter Comparison

Engineering Selection Recommendations

DME1W1K-F Selection:

• Primary choice for applications with space constraints or existing PCB layouts designed for 10.00mm lead spacing
• Compact radial package (12.50mm x 7.00mm) suitable for high-density board designs
• Active product status with established supply chain (1133 units in stock)
• ROHS3 and REACH compliant for regulated markets

DMT1W1K-F Selection:

• Functional equivalent for applications where larger physical dimensions are acceptable
• Larger case size (33.80mm x 13.20mm) with 29.70mm lead spacing accommodates applications with relaxed space requirements
• Higher inventory availability (1856 units in stock) supports extended production runs
• Identical electrical specifications and compliance certifications ensure circuit-level equivalence

Both parts are Active products from the same manufacturer with identical electrical ratings, dielectric properties, and regulatory compliance. Selection between DME1W1K-F and DMT1W1K-F is determined by PCB layout constraints and lead spacing requirements, not by electrical performance or reliability characteristics.

Frequently Asked Questions (FAQ)

Q: Can DMT1W1K-F replace DME1W1K-F in existing circuit designs?

A: DMT1W1K-F is electrically equivalent to DME1W1K-F across all specified parameters. Substitution is feasible only if PCB layout accommodates the larger physical dimensions (33.80mm x 13.20mm case) and 29.70mm lead spacing. Direct board-level replacement without layout modification is not possible due to different footprints.

Q: Are the electrical characteristics identical between these two parts?

A: Yes. Both parts share identical capacitance (1 µF), tolerance (±10%), voltage ratings (100V DC / 65V AC), dielectric material (polyester metallized), operating temperature range (-55°C to 125°C), and termination type (PC pins). Electrical performance in circuit operation is equivalent.

Q: What is the significance of the different case sizes?

A: Case size differences reflect different series designations within CDE's product line (DME versus DMT). The DME1W1K-F uses a compact 12.50mm x 7.00mm package with 10.00mm lead spacing. The DMT1W1K-F uses a larger 33.80mm x 13.20mm package with 29.70mm lead spacing. Physical dimensions do not affect electrical function but determine PCB compatibility and mounting feasibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both DME1W1K-F and DMT1W1K-F are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements for sale in restricted markets.

Q: Which part should be selected for new designs?

A: Selection depends on available PCB space and lead spacing requirements. For space-constrained applications, DME1W1K-F is appropriate. For applications with relaxed space requirements, DMT1W1K-F offers higher inventory availability. Both are Active products suitable for new designs.

Q: Can these parts be used interchangeably in production?

A: Electrical interchangeability is confirmed. Production interchangeability requires PCB design compatibility with the selected part's physical dimensions and lead spacing. Design changes are necessary to transition between these parts.