EDLRF104A5R5C Equivalent & Substitute Parts

Part Overview

The EDLRF104A5R5C is a 100 mF supercapacitor manufactured by Cornell Dubilier Electronics (CDE) rated for 5.5 V operation. This component is classified as obsolete, indicating that the original manufacturer has discontinued production. The device features radial, can-style horizontal mounting with through-hole termination, designed for applications requiring energy storage and power delivery in compact form factors.

Due to the obsolete status of the EDLRF104A5R5C, identification of functionally equivalent substitute components is necessary to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Capacitance	100	mF
Voltage Rating	5.5	V
Tolerance	-20%, +80%	%
ESR @ 1 kHz	75	Ohm
Lifetime @ 85°C	2000	Hrs
Mounting Type	Through Hole	—
Package Style	Radial, Can	—
Lead Spacing	0.197	inches (5.00 mm)
Operating Temperature Range	-25°C to 85°C	—
RoHS Compliance	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the EDLRF104A5R5C is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Capacitance value: 100 mF (exact match required)
Voltage rating: 5.5 V (exact match required)
Tolerance: -20%, +80% (exact match required)
Mounting type: Through Hole (exact match required)
Package style: Radial, Can (exact match required)
Lead spacing: 0.197 inches / 5.00 mm (exact match required)
Termination: PC Pins (exact match required)

Allowable Variation Parameters:

ESR @ 1 kHz: Lower values are acceptable (improved performance)
Lifetime @ 85°C: Equal or greater values are acceptable
Operating temperature range: Extended ranges are acceptable
Physical dimensions: Minor variations acceptable if mounting compatibility is maintained
Product status: Active status preferred over obsolete

The substitute part KW-5R5C104-R meets all mandatory equivalence criteria and demonstrates improved electrical characteristics in ESR performance.

Parameter Comparison

Parameter	EDLRF104A5R5C (CDE)	KW-5R5C104-R (Eaton)	Compatibility
Capacitance	100 mF	100 mF	Equivalent
Voltage Rating	5.5 V	5.5 V	Equivalent
Tolerance	-20%, +80%	-20%, +80%	Equivalent
ESR @ 1 kHz	75 Ohm	50 Ohm	Improved (Lower)
Lifetime @ 85°C	2000 Hrs	2000 Hrs	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package Style	Radial, Can, Horizontal	Radial, Can	Equivalent
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	Equivalent
Size / Diameter	0.531" (13.50 mm)	0.531" (13.50 mm)	Equivalent
Height - Seated (Max)	0.374" (9.50 mm)	0.327" (8.30 mm)	Compatible (Shorter)
Operating Temperature Range	-25°C to 85°C	-40°C to 85°C	Extended Range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Improved Availability

Engineering Selection Recommendations

The KW-5R5C104-R manufactured by Eaton - Electronics Division is a direct functional substitute for the obsolete EDLRF104A5R5C. Selection of this substitute component is supported by the following engineering factors:

Electrical Equivalence: The substitute part maintains identical capacitance (100 mF), voltage rating (5.5 V), and tolerance specifications (-20%, +80%). The ESR value of 50 Ohm @ 1 kHz is lower than the original 75 Ohm specification, representing improved electrical performance with reduced series resistance.

Mechanical Compatibility: Lead spacing, package diameter, and termination type are identical. The substitute component has a reduced seated height (0.327" versus 0.374"), which is compatible with existing through-hole PCB layouts and does not create mechanical interference.

Regulatory Compliance: Both components are ROHS3 compliant. The substitute part carries active product status, ensuring continued availability and supply chain support.

Operational Range: The substitute component extends the operating temperature range to -40°C to 85°C, providing enhanced performance in lower-temperature environments compared to the original -25°C to 85°C specification.

Frequently Asked Questions (FAQ)

Q: Can the KW-5R5C104-R be used as a direct replacement for the EDLRF104A5R5C in existing designs?

A: Yes. The KW-5R5C104-R meets all mandatory electrical and mechanical equivalence criteria. Identical capacitance, voltage rating, tolerance, lead spacing, and package style ensure direct PCB compatibility without design modification.

Q: What is the significance of the lower ESR value in the substitute part?

A: The KW-5R5C104-R has an ESR of 50 Ohm @ 1 kHz compared to 75 Ohm @ 1 kHz in the original component. Lower ESR reduces resistive losses, improves charge/discharge efficiency, and decreases heat generation during operation. This represents an improvement over the original specification.

Q: Are there any height clearance concerns with the substitute part?

A: No. The KW-5R5C104-R has a maximum seated height of 0.327 inches (8.30 mm), which is 0.047 inches (1.20 mm) shorter than the original 0.374 inches (9.50 mm). This reduced height is compatible with existing PCB layouts and does not create clearance issues.

Q: Does the extended operating temperature range of the substitute part affect compatibility?

A: No. The KW-5R5C104-R operates from -40°C to 85°C, extending the lower temperature limit from -25°C. This extended range is fully backward compatible with designs specified for the original -25°C to 85°C range.

Q: What is the availability status of each component?

A: The EDLRF104A5R5C is obsolete and no longer manufactured. The KW-5R5C104-R is active production status, ensuring continued supply chain availability for new designs and field replacements.

Q: Are both components RoHS compliant?

A: Yes. Both the EDLRF104A5R5C and KW-5R5C104-R are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

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