ECQ-B2472JF Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECQ-B2472JF is a 4700 pF film capacitor manufactured by Panasonic Electronic Components, rated for 200V DC operation with ±5% tolerance. This radial through-hole component uses polyester dielectric material and operates across a temperature range of -40°C to 105°C. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

ECQ-B2472JF

Panasonic Electronic ComponentsIn Stock: 869ECQ-B2472JF Datasheet

Current PartRFQ

168472J250A-F

Cornell Dubilier Electronics (CDE)In Stock: 903168472J250A-F Datasheet

SimilarRFQ

B32529C3472J000

EPCOS - TDK ElectronicsIn Stock: 3364B32529C3472J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECQ-B2472JF must maintain the following core electrical and mechanical parameters:

• Capacitance value of 4700 pF
• Tolerance of ±5%
• Voltage rating equal to or greater than 200V DC
• Polyester or metallized polyester dielectric material
• Through-hole radial mounting configuration
• PC pin termination
• Compatible lead spacing for PCB footprint alignment

The two substitute parts identified meet these criteria while offering improved availability and active product status. Both substitutes exceed the original voltage rating (250V DC) and expand the operating temperature range, providing enhanced performance margins.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, addressing the obsolescence of the ECQ-B2472JF. Selection between the two substitutes depends on specific application requirements:

168472J250A-F (Cornell Dubilier Electronics): This substitute provides 250V DC rating with metallized polyester dielectric and extended temperature range (-55°C to 125°C). RoHS3 compliance and REACH unaffected status support regulatory requirements. Inventory availability is 870 units.

B32529C3472J000 (EPCOS - TDK Electronics): This substitute offers 250V DC rating with metallized polyester-PET stacked dielectric construction and identical temperature range (-55°C to 125°C). AEC-Q200 automotive qualification and RoHS3 compliance are provided. Inventory availability is 3312 units, representing higher stock levels.

Both substitutes feature reduced lead spacing (5.00mm versus 7.50mm original), requiring PCB footprint verification before implementation. The higher voltage rating and extended temperature range of both substitutes provide improved performance margins over the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 168472J250A-F or B32529C3472J000 directly replace the ECQ-B2472JF without PCB modification?

A: Electrical substitution is valid; however, lead spacing differs. The original ECQ-B2472JF has 7.50mm lead spacing, while both substitutes have 5.00mm spacing. PCB footprint compatibility must be verified before implementation. Physical board layout modification may be required.

Q: What is the significance of the higher 250V DC rating on the substitute parts?

A: The substitute parts exceed the original 200V DC specification by 50V. This provides additional voltage margin and improved reliability in applications with voltage transients or margin requirements. The higher rating does not negatively impact circuit performance in 200V applications.

Q: Are the metallized dielectric variants functionally equivalent to the original polyester dielectric?

A: Both substitute parts use polyester-based dielectric materials (metallized polyester or metallized polyester-PET). These materials maintain the same functional capacitance and tolerance characteristics as the original polyester dielectric while offering improved performance characteristics.

Q: What compliance advantages do the substitute parts offer?

A: Both substitutes are RoHS3 compliant and REACH unaffected, supporting modern regulatory requirements. The B32529C3472J000 additionally carries AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications.

Q: Which substitute part should be selected for new designs?

A: Selection is based on application requirements and inventory availability. The B32529C3472J000 offers higher stock levels (3312 units) and automotive qualification. The 168472J250A-F provides an alternative from a different manufacturer. Both are electrically and mechanically suitable for the ECQ-B2472JF application.