DME4W1K-F Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier Electronics DME4W1K-F is a 1 µF film capacitor rated for 400V DC operation with polyester, metallized dielectric construction. This component is classified as active and in continuous production. Finding alternative sourcing options for this radial film capacitor is critical for supply chain resilience, production planning, and inventory management across automotive, industrial, and general-purpose applications.

Substiute Parts

DME4W1K-F

Cornell Dubilier Electronics (CDE)In Stock: 1031DME4W1K-F Datasheet

Current PartRFQ

B32522N6105K000

EPCOS - TDK ElectronicsIn Stock: 1881B32522N6105K000 Datasheet

SimilarRFQ

B32523Q6105K000

EPCOS - TDK ElectronicsIn Stock: 2097B32523Q6105K000 Datasheet

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B32524Q6105K000

EPCOS - TDK ElectronicsIn Stock: 2510B32524Q6105K000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution validity for the DME4W1K-F is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Requirements:

• Capacitance: 1 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - AC: 200V (minimum requirement)
• Voltage Rating - DC: 400V (minimum requirement)
• Dielectric Material: Polyester-based metallized construction

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (radial lead configuration)
• Termination: PC Pins (radial lead pins)
• Operating Temperature Range: -55°C to 125°C (minimum required)

All three substitute parts (B32522N6105K000, B32523Q6105K000, B32524Q6105K000) meet these core compatibility criteria and are qualified for direct substitution within applications where the original part was specified.

Parameter Comparison

Engineering Selection Recommendations

B32522N6105K000: This EPCOS-TDK substitute offers higher DC voltage rating (450V vs. 400V) and is rated for automotive applications with AEC-Q200 qualification pending. However, the 15.00mm lead spacing differs significantly from the original 22.50mm specification, requiring board layout verification before implementation. ROHS3 and REACH compliance are maintained.

B32523Q6105K000: This EPCOS-TDK substitute maintains identical electrical specifications (1 µF, ±10%, 400V DC, 200V AC) and preserves the original 22.50mm lead spacing, minimizing board redesign requirements. This part carries AEC-Q200 automotive qualification and demonstrates the closest mechanical compatibility. ROHS3 and REACH compliance are maintained.

B32524Q6105K000: This EPCOS-TDK substitute provides electrical equivalence with increased board space requirements due to 27.50mm lead spacing versus the original 22.50mm. AEC-Q200 automotive qualification is included. ROHS3 and REACH compliance are maintained.

All three substitutes are ROHS3 compliant and REACH unaffected, maintaining the regulatory status of the original component.

Frequently Asked Questions (FAQ)

Q: Can B32522N6105K000 be used as a direct drop-in replacement? A: Electrical substitution is valid due to matching capacitance (1 µF), tolerance (±10%), AC voltage (200V), and DC voltage (450V, which exceeds the 400V requirement). However, the 15.00mm lead spacing differs from the original 22.50mm, requiring PCB layout verification and potential drilling adjustments.

Q: Which substitute part requires minimal board redesign? A: B32523Q6105K000 is the optimal choice for minimal redesign. It maintains the original 22.50mm lead spacing, identical DC voltage rating (400V), and all electrical parameters while offering AEC-Q200 automotive qualification.

Q: Are all substitute parts automotive-qualified? A: B32522N6105K000, B32523Q6105K000, and B32524Q6105K000 are all rated for automotive applications. B32523Q6105K000 and B32524Q6105K000 carry explicit AEC-Q200 certification.

Q: What are the lead spacing differences among substitutes? A: Original DME4W1K-F: 22.50mm. B32522N6105K000: 15.00mm (reduced spacing). B32523Q6105K000: 22.50mm (identical to original). B32524Q6105K000: 27.50mm (increased spacing).

Q: Do all substitutes maintain RoHS and REACH compliance? A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, maintaining the regulatory compliance status of the original DME4W1K-F component.

Q: Are there inventory considerations for selecting a substitute? A: B32524Q6105K000 demonstrates highest current availability (2463 pcs), followed by B32523Q6105K000 (2053 pcs), and B32522N6105K000 (1822 pcs). All exceed typical procurement requirements.