DSF100J104 Equivalent & Substitute Parts

Part Overview

The DSF100J104 is a 0.1 µF film capacitor rated for 100V DC, manufactured by Cornell Dubilier Electronics (CDE) in the DSF series. This component features a polyester metallized-stacked radial configuration with ±5% tolerance and operates across a temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent components for continued system support and procurement.

Substiute Parts

DSF100J104

Cornell Dubilier Electronics (CDE)In Stock: 699DSF100J104 Datasheet

Current PartRFQ

R82EC3100Z370J

KEMETIn Stock: 58969R82EC3100Z370J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF100J104 is based on strict equivalence of the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 0.1 µF (exact match required)
• Tolerance: ±5% (matching tolerance band)
• Voltage Rating - DC: 100V (minimum requirement; higher ratings are acceptable)
• Dielectric material classification: Polyester-based metallized film

Mechanical Equivalence Criteria:

• Mounting type: Through Hole radial configuration
• Lead spacing: 0.197" (5.00mm) center-to-center
• Termination style: PC Pins (printed circuit board pins)
• Package classification: Radial

Compliance Criteria:

• RoHS3 compliance required
• REACH unaffected status

The substitute part R82EC3100Z370J from KEMET meets all electrical and mechanical equivalence requirements while offering active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The R82EC3100Z370J from KEMET is a direct electrical and mechanical substitute for the obsolete DSF100J104. Both components share identical capacitance (0.1 µF), tolerance (±5%), and DC voltage rating (100V), with matching lead spacing (5.00mm) and radial through-hole configuration.

The KEMET substitute offers the following advantages:

• Active Product Status: R82EC3100Z370J is actively manufactured and stocked (58,952 pcs available), ensuring long-term procurement availability compared to the obsolete DSF100J104.
• Extended Operating Temperature Range: The substitute operates from -55°C to 105°C, providing broader thermal performance envelope than the original -40°C to 85°C specification.
• Compliance Certification: Both components maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.
• Automotive Qualification: The KEMET part carries AEC-Q200 rating, indicating suitability for automotive applications where applicable.

Physical dimensions differ slightly (KEMET: 7.20mm L x 2.50mm W vs. CDE: 7.50mm L x 4.50mm W), but both maintain the same 5.00mm lead spacing required for PCB compatibility. Height specifications are also comparable (KEMET: 6.50mm vs. CDE: 8.00mm maximum seated height).

Frequently Asked Questions (FAQ)

Q: Can R82EC3100Z370J be used as a direct replacement for DSF100J104 on existing PCBs?

A: Yes. Both components share identical lead spacing (5.00mm) and radial through-hole termination. Physical dimensions are similar enough to accommodate standard PCB footprints designed for the DSF100J104. Verify PCB clearance for the slightly different package dimensions before assembly.

Q: What is the significance of the extended operating temperature range in the KEMET substitute?

A: The R82EC3100Z370J operates from -55°C to 105°C compared to the original -40°C to 85°C range. This extended specification provides additional thermal margin for applications operating in extreme environments. If your application operates within the original -40°C to 85°C window, both parts are functionally equivalent in this regard.

Q: Are there any electrical performance differences between these two capacitors?

A: Both components are specified at 0.1 µF with ±5% tolerance and 100V DC rating. The KEMET part includes a 63V AC rating specification not provided for the CDE original. For DC-only applications, this difference is not relevant. Capacitance value, tolerance, and DC voltage rating are identical.

Q: Why is the KEMET part smaller in physical dimensions?

A: The R82EC3100Z370J uses a more compact package design (7.20mm x 2.50mm vs. 7.50mm x 4.50mm) while maintaining the same electrical specifications and lead spacing. This represents modern manufacturing efficiency. The identical 5.00mm lead spacing ensures PCB compatibility without redesign.

Q: What does AEC-Q200 certification mean for the KEMET substitute?

A: AEC-Q200 is an automotive qualification standard indicating the component meets reliability and performance requirements for automotive applications. If your application is non-automotive, this certification provides additional assurance of component quality and consistency but is not a requirement for substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both DSF100J104 and R82EC3100Z370J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.