474MPW250K Film Capacitor Equivalent & Substitute Parts

Part Overview

The 474MPW250K is a 0.47 µF film capacitor manufactured by Cornell Dubilier / Illinois Capacitor, designed for DC link and DC filtering applications. This axial-mounted polypropylene metallized capacitor operates at 250V DC with ±10% tolerance and maintains active product status. Substitute parts may be required due to inventory constraints, application-specific mounting preferences, or supply chain considerations while maintaining equivalent electrical performance within specified parameters.

Substiute Parts

474MPW250K

Cornell Dubilier / Illinois CapacitorIn Stock: 994474MPW250K Datasheet

Current PartRFQ

ECQ-E2474KF

Panasonic Electronic ComponentsIn Stock: 1521ECQ-E2474KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 474MPW250K is based on the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 0.47 µF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage Rating - DC: 250V (minimum requirement; higher ratings acceptable)
• Dielectric material: Metallized film type (polypropylene or polyester acceptable)

Mechanical Compatibility Criteria:

• Mounting type: Through Hole (required for PCB assembly compatibility)
• Termination: PC Pins (standard through-hole termination)
• Operating temperature range: Must support -40°C minimum to 105°C maximum

Compliance Criteria:

• RoHS3 Compliant status required
• REACH Unaffected status required

The ECQ-E2474KF meets all electrical equivalence criteria and compliance requirements. The primary difference is the package configuration (radial vs. axial) and dielectric material (polyester vs. polypropylene), which affects physical footprint and thermal characteristics but not electrical performance within the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (474MPW250K): Select the 474MPW250K when the application requires axial package configuration, extended low-temperature operation (-55°C minimum), or polypropylene dielectric characteristics. This part maintains active product status with 949 units in stock and full ROHS3 and REACH compliance.

Substitute Part Selection (ECQ-E2474KF): Select the ECQ-E2474KF when radial package configuration is acceptable for PCB layout, operating temperature range of -40°C to 105°C is sufficient, or polyester dielectric properties are compatible with the application. This substitute maintains active product status with 1501 units in stock and equivalent compliance certifications.

Critical Selection Factors:

• PCB layout constraints determine package preference (axial vs. radial)
• Minimum operating temperature requirement: 474MPW250K supports -55°C; ECQ-E2474KF supports -40°C minimum
• AC voltage rating: 474MPW250K rated 200V AC; ECQ-E2474KF rated 150V AC
• Both parts meet DC voltage requirement of 250V
• Both parts maintain identical capacitance, tolerance, and compliance status

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2474KF replace 474MPW250K in all applications?

A: Electrical substitution is valid when operating temperature does not fall below -40°C and AC voltage stress does not exceed 150V. PCB layout must accommodate radial package dimensions (18.50mm L x 5.30mm W vs. 11.00mm Dia x 29.00mm L for axial). Both parts meet the 250V DC requirement and maintain ±10% tolerance.

Q: What is the primary difference between these parts?

A: The 474MPW250K uses polypropylene dielectric in axial configuration with -55°C to 105°C operating range. The ECQ-E2474KF uses polyester dielectric in radial configuration with -40°C to 105°C operating range. Electrical performance (capacitance, tolerance, DC voltage rating) is equivalent.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both 474MPW250K and ECQ-E2474KF are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Does package type affect electrical performance?

A: No. Axial and radial packages of equivalent film capacitors with identical capacitance, voltage rating, and dielectric material deliver equivalent electrical performance. Package selection is determined by PCB layout requirements and lead spacing constraints.

Q: What inventory status should influence part selection?

A: 474MPW250K has 949 units in stock; ECQ-E2474KF has 1501 units in stock. Both maintain active product status. Inventory availability may influence selection when lead time is critical.