DSF050J564 Film Capacitor Equivalent & Substitute Parts

Part Overview

The DSF050J564 is a 0.56 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 50V DC voltage rating and ±5% tolerance. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement. The radial through-hole configuration and polyester metallized dielectric make this capacitor suitable for general-purpose applications requiring stable capacitance and low dissipation factor.

Substiute Parts

DSF050J564

Cornell Dubilier Electronics (CDE)In Stock: 1278DSF050J564 Datasheet

Current PartRFQ

B32529C0564K289

EPCOS - TDK ElectronicsIn Stock: 8304B32529C0564K289 Datasheet

SimilarRFQ

ECQ-E1564JF9

Panasonic Electronic ComponentsIn Stock: 911ECQ-E1564JF9 Datasheet

SimilarRFQ

ECQ-E2564JBB

Panasonic Electronic ComponentsIn Stock: 695ECQ-E2564JBB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF050J564 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance value: 0.56 µF (exact match required)
• Lead spacing: 0.197" (5.00mm) (mechanical compatibility)
• Mounting type: Through Hole (board assembly compatibility)
• Package type: Radial (footprint compatibility)
• Termination: PC Pins (soldering compatibility)
• Dielectric material: Polyester, Metallized (electrical performance characteristics)

Allowable Variation Parameters:

• Voltage rating: Equal to or greater than 50V DC (derating margin acceptable)
• Tolerance: ±5% or tighter (±10% acceptable for non-critical applications)
• Operating temperature range: Equal to or exceeding -40°C ~ 85°C
• Product status: Active preferred; obsolete acceptable if in stock

The three substitute parts listed below satisfy all mandatory matching parameters while providing equal or superior electrical ratings.

Parameter Comparison

Engineering Selection Recommendations

B32529C0564K289 (EPCOS - TDK Electronics)

This substitute provides a 63V DC rating with ±10% tolerance and extended operating temperature range (-55°C ~ 125°C). The higher voltage rating offers additional derating margin for the 50V application. The B3252* series is classified as active with high inventory availability (8261 units). RoHS3 compliance and REACH unaffected status are confirmed. This part is suitable for applications where tolerance relaxation to ±10% is acceptable and extended temperature performance is beneficial.

ECQ-E1564JF9 (Panasonic Electronic Components)

This substitute maintains the ±5% tolerance specification of the original part while providing a 100V DC rating. The ECQ-E(F) series is active with confirmed RoHS3 compliance. Operating temperature range extends to 105°C. This part is appropriate for designs requiring tight capacitance tolerance and higher voltage derating. Inventory availability is 898 units.

ECQ-E2564JBB (Panasonic Electronic Components)

This substitute offers the highest voltage rating at 250V DC with ±5% tolerance matching the original specification. The ECQ-E(B) series is active with RoHS3 compliance and 105°C maximum operating temperature. This part is suitable for applications requiring maximum voltage derating margin and tight tolerance control. Inventory availability is 669 units.

All three substitutes maintain mechanical compatibility through identical lead spacing (5.00mm), radial package configuration, and PC pin termination. All are ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2564JBB be used as a direct replacement for DSF050J564?

A: Yes. The ECQ-E2564JBB maintains identical capacitance (0.56 µF), tolerance (±5%), lead spacing (5.00mm), mounting type (through hole), package type (radial), and termination (PC pins). The 250V DC rating exceeds the 50V requirement, providing additional derating margin. Physical dimensions differ slightly but do not affect board-level compatibility.

Q: What is the difference between the three substitute options?

A: The primary differences are voltage rating and tolerance. B32529C0564K289 provides 63V with ±10% tolerance. ECQ-E1564JF9 provides 100V with ±5% tolerance. ECQ-E2564JBB provides 250V with ±5% tolerance. All three maintain identical capacitance, lead spacing, and mounting configuration. Selection depends on application voltage requirements and tolerance specifications.

Q: Is the ±10% tolerance of B32529C0564K289 acceptable as a substitute for the ±5% original?

A: Tolerance acceptability depends on circuit design requirements. The ±10% specification represents a relaxation from the original ±5% tolerance. Applications with tight capacitance-dependent performance may require the ±5% tolerance maintained by ECQ-E1564JF9 or ECQ-E2564JBB.

Q: Do physical dimension differences affect PCB compatibility?

A: Lead spacing (5.00mm) is identical across all parts, ensuring footprint compatibility. Height and length dimensions vary slightly between substitutes. Verify clearance in the specific PCB layout, particularly for components mounted near taller adjacent parts or under shielding.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All three substitute parts are confirmed ROHS3 compliant and REACH unaffected, matching the compliance status of the original DSF050J564.

Q: Which substitute offers the best long-term availability?

A: B32529C0564K289 has the highest current inventory (8261 units) and active product status from EPCOS - TDK Electronics, a major capacitor manufacturer. ECQ-E1564JF9 and ECQ-E2564JBB are also active Panasonic products with confirmed stock levels (898 and 669 units respectively).