683MPW250K Film Capacitor Equivalent & Substitute Parts

Part Overview

The 683MPW250K is an active, in-stock film capacitor manufactured by Cornell Dubilier / Illinois Capacitor. This 0.068 µF polypropylene metallized axial capacitor operates at 250V DC and is designed for DC link and DC filtering applications. The part maintains ROHS3 compliance and REACH unaffected status, making it suitable for modern electronic assemblies. Equivalent and substitute parts are identified based on matching capacitance, voltage rating, tolerance, and dielectric material specifications to ensure functional interchangeability in target applications.

Substiute Parts

683MPW250K

Cornell Dubilier / Illinois CapacitorIn Stock: 901683MPW250K Datasheet

Current PartRFQ

ECQ-E2683KF

Panasonic Electronic ComponentsIn Stock: 2255ECQ-E2683KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 683MPW250K are identified based on the following critical parameters:

Primary Matching Criteria:

• Capacitance value: 0.068 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 250V (minimum requirement; equal or higher acceptable)
• Mounting Type: Through Hole (required for PCB assembly compatibility)
• Dielectric Material: Metallized film (polypropylene or polyester acceptable for general-purpose substitution)

Secondary Considerations:

• Operating temperature range compatibility
• RoHS and REACH compliance status
• Physical package dimensions (axial vs. radial affects board layout)

The ECQ-E2683KF qualifies as a substitute based on matching capacitance (0.068 µF), tolerance (±10%), and DC voltage rating (250V). Although it uses polyester dielectric instead of polypropylene and features radial mounting instead of axial, these differences are acceptable for applications where board layout permits radial component placement and polyester film performance meets application requirements.

Parameter Comparison

Engineering Selection Recommendations

683MPW250K Selection:

• Primary choice for applications requiring polypropylene dielectric characteristics
• Axial package configuration suitable for inline PCB layouts
• Extended low-temperature operating range (-55°C) for harsh environment applications
• AC voltage rating of 200V supports higher AC stress conditions
• ROHS3 and REACH compliance confirmed for regulated markets

ECQ-E2683KF Selection:

• Acceptable substitute where radial package footprint is compatible with board design
• Polyester dielectric suitable for general-purpose DC filtering and DC link applications
• Higher inventory availability (2170 pcs) supports rapid procurement
• Operating temperature minimum of -40°C acceptable for standard industrial range
• AC voltage rating of 150V sufficient for applications not requiring 200V AC stress
• ROHS3 and REACH compliance confirmed for regulated markets

Both parts maintain identical DC voltage rating (250V) and capacitance (0.068 µF), ensuring electrical equivalence for DC-biased circuit operation. Selection between axial and radial mounting depends on PCB layout constraints and available component placement area.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2683KF replace 683MPW250K in all applications?

A: ECQ-E2683KF is electrically equivalent for DC filtering and DC link applications where the radial package footprint is compatible with board layout. The polyester dielectric and lower AC voltage rating (150V vs. 200V) are acceptable for most general-purpose applications. Verify board layout compatibility before substitution.

Q: What is the difference between axial and radial mounting?

A: Axial capacitors (683MPW250K) have leads extending from opposite ends, suitable for inline PCB layouts. Radial capacitors (ECQ-E2683KF) have both leads extending from the same end, requiring different pad placement. Board layout must accommodate the selected package type.

Q: Why does ECQ-E2683KF have a lower AC voltage rating?

A: The AC voltage rating reflects the dielectric material and construction. Polyester film (ECQ-E2683KF) has a lower AC rating than polypropylene (683MPW250K). For applications requiring 200V AC stress, the 683MPW250K is the appropriate selection.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both 683MPW250K and ECQ-E2683KF are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic component use in regulated markets.

Q: What is the operating temperature difference?

A: 683MPW250K operates from -55°C to 105°C, while ECQ-E2683KF operates from -40°C to 105°C. For applications requiring operation below -40°C, the 683MPW250K is required.

Q: Can I use ECQ-E2683KF if my application requires -55°C operation?

A: No. ECQ-E2683KF minimum operating temperature is -40°C. Applications requiring -55°C operation must use 683MPW250K or equivalent parts with extended low-temperature ratings.

Q: Are the capacitance and tolerance values identical?

A: Yes. Both parts are 0.068 µF with ±10% tolerance, ensuring identical capacitive performance in circuit operation.