DSF050J105 Equivalent & Substitute Parts

Part Overview

The DSF050J105 is a 1 µF film capacitor rated at 50V DC with ±5% tolerance, manufactured by Cornell Dubilier Electronics (CDE) in the DSF series. This component features a polyester metallized-stacked radial construction with through-hole mounting, designed for general-purpose applications across an operating temperature range of -40°C to 85°C.

The DSF050J105 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

DSF050J105

Cornell Dubilier Electronics (CDE)In Stock: 1116DSF050J105 Datasheet

Current PartRFQ

R60DF4100AA6AJ

KEMETIn Stock: 2032R60DF4100AA6AJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF050J105 is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Capacitance value must equal 1 µF
• Tolerance must be ±5% or tighter
• Voltage rating must be equal to or greater than 50V DC
• Dielectric material must be polyester-based with metallized-stacked construction

Mechanical Compatibility Criteria:

• Mounting type must be through-hole
• Package configuration must be radial
• Termination must be PC pins
• Lead spacing must accommodate 5.00mm pitch or be compatible with existing PCB layouts

Compliance Criteria:

• RoHS3 compliance required
• REACH unaffected status required

The substitute part R60DF4100AA6AJ meets all electrical and mechanical compatibility requirements while exceeding the voltage rating specification and offering an extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The R60DF4100AA6AJ qualifies as a functional substitute for the DSF050J105 based on matched electrical specifications (1 µF capacitance, ±5% tolerance) and compatible mechanical construction (through-hole radial with PC pin termination).

Advantages of R60DF4100AA6AJ:

• Active product status ensures ongoing availability and supply chain support
• Voltage rating of 63V exceeds the 50V requirement, providing design margin
• Extended operating temperature range (-55°C to 105°C) covers the original specification (-40°C to 85°C)
• ROHS3 and REACH compliance maintained
• Polyester-based dielectric with metallized-stacked construction preserves electrical performance characteristics

Critical Consideration: The lead spacing differs between parts: DSF050J105 uses 5.00mm pitch while R60DF4100AA6AJ uses 10.00mm pitch. PCB layout compatibility must be verified before implementation. Physical dimensions also differ; the substitute part measures 13.00mm L x 4.00mm W with 9.10mm seated height compared to the original 7.30mm L x 8.00mm W with 12.00mm seated height.

Selection of this substitute is appropriate for applications where PCB layout can accommodate the 10.00mm lead spacing and where the larger physical footprint does not create mechanical constraints.

Frequently Asked Questions (FAQ)

Q: Can the R60DF4100AA6AJ be used as a direct replacement for the DSF050J105?

A: Electrical substitution is valid. The R60DF4100AA6AJ matches the 1 µF capacitance, ±5% tolerance, and exceeds the 50V DC voltage requirement. However, mechanical substitution requires PCB layout verification due to the 10.00mm lead spacing of the substitute versus the 5.00mm spacing of the original part. Physical dimensions also differ.

Q: What is the significance of the different lead spacing?

A: Lead spacing determines the distance between component pins on the PCB. The DSF050J105 uses 5.00mm spacing while the R60DF4100AA6AJ uses 10.00mm spacing. Existing PCB designs with 5.00mm hole patterns cannot accommodate the substitute without layout modification. New designs or redesigned PCBs with 10.00mm spacing are required.

Q: Does the higher voltage rating of the substitute affect circuit performance?

A: No. A capacitor with a higher voltage rating than required operates safely in the circuit. The 63V rating of the R60DF4100AA6AJ provides additional design margin when used in a 50V application. Capacitance value and tolerance remain the same, ensuring equivalent electrical performance.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Compliance status is equivalent. The substitute part carries AEC-Q200 automotive qualification, which is an additional certification not present in the original part specification.

Q: Why is the DSF050J105 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Cornell Dubilier Electronics. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. Identifying active substitute parts ensures design continuity and production support.

Q: Can the operating temperature range difference impact my application?

A: The R60DF4100AA6AJ operates from -55°C to 105°C, which encompasses the original DSF050J105 range of -40°C to 85°C. The extended range provides additional operational margin and is compatible with applications requiring the original temperature specification.