DSF100J474 Film Capacitor - Equivalent & Substitute Parts

Part Overview

The DSF100J474 is a 0.47 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 construction with ±5% tolerance and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, making identification of equivalent substitutes essential for ongoing production and maintenance applications. Substitute parts must maintain identical electrical specifications while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Capacitance	0.47 µF
Voltage Rating (DC)	100V
Tolerance	±5%
Dielectric Material	Polyester, Metallized - Stacked
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.295" (7.50mm)
Termination	PC Pins
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DSF100J474 is determined by strict adherence to the following electrical and mechanical parameters:

Electrical Compatibility Requirements:

Capacitance value: 0.47 µF (exact match required)
DC voltage rating: 100V minimum
Tolerance: ±5%
Dielectric material: Polyester or Polyethylene Terephthalate (PET) metallized-stacked construction

Mechanical Compatibility Requirements:

Mounting type: Through Hole
Package configuration: Radial
Termination: PC Pins
Lead spacing: 0.295" (7.50mm) or compatible spacing for PCB layout

Compliance Requirements:

RoHS3 Compliant status
REACH Unaffected classification

Both identified substitute parts meet these criteria and are classified as active products with current manufacturing availability.

Parameter Comparison

Parameter	DSF100J474 (Main)	B32520C1474J000 (EPCOS)	R82EC3470DQ70J (KEMET)
Manufacturer	Cornell Dubilier Electronics	EPCOS - TDK Electronics	KEMET
Capacitance	0.47 µF	0.47 µF	0.47 µF
Tolerance	±5%	±5%	±5%
Voltage Rating (DC)	100V	100V	100V
Voltage Rating (AC)	—	63V	63V
Dielectric Material	Polyester, Metallized - Stacked	Polyester, PET, Metallized - Stacked	Polyester, PET, Metallized - Stacked
Operating Temperature Range	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 105°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial	Radial	Radial
Lead Spacing	0.295" (7.50mm)	0.295" (7.50mm)	0.197" (5.00mm)
Size (L x W)	0.402" x 0.268" (10.20mm x 6.80mm)	0.394" x 0.197" (10.00mm x 5.00mm)	0.283" x 0.177" (7.20mm x 4.50mm)
Height (Seated Max)	0.453" (11.50mm)	0.413" (10.50mm)	0.378" (9.60mm)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

B32520C1474J000 (EPCOS - TDK Electronics):

This substitute maintains identical lead spacing (0.295" / 7.50mm) to the DSF100J474, ensuring direct PCB compatibility without layout modifications. The part is manufactured by EPCOS, a division of TDK Electronics, and carries active product status with AEC-Q200 automotive qualification. Operating temperature range extends to -55°C to 125°C, exceeding the original specification. This part is suitable for applications requiring automotive-grade reliability and extended thermal performance.

R82EC3470DQ70J (KEMET):

This substitute meets all electrical specifications but features a reduced lead spacing of 0.197" (5.00mm) compared to the original 0.295" (7.50mm). Physical dimensions are also more compact. The R82 series carries AEC-Q200 automotive qualification and active product status. This part is appropriate for space-constrained applications where PCB layout can accommodate the modified lead spacing. Operating temperature range is -55°C to 105°C.

Selection Criteria:

For direct PCB replacement without layout modification: Select B32520C1474J000
For space-constrained designs with PCB layout flexibility: Select R82EC3470DQ70J
Both substitutes provide superior temperature range performance and active manufacturing status compared to the obsolete DSF100J474

Frequently Asked Questions (FAQ)

Q: Can the R82EC3470DQ70J be used as a direct replacement on existing PCBs designed for the DSF100J474?

A: The R82EC3470DQ70J has a lead spacing of 0.197" (5.00mm) versus the original 0.295" (7.50mm). Direct PCB mounting is not possible without layout modification. The B32520C1474J000 maintains the original lead spacing and is suitable for direct replacement.

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

A: Both substitute parts operate across -55°C to 125°C (EPCOS) or -55°C to 105°C (KEMET), compared to the original -40°C to 85°C range. This provides additional thermal margin for applications subject to extreme environmental conditions. The extended range does not affect compatibility in applications within the original temperature specification.

Q: Are both substitute parts suitable for automotive applications?

A: Yes. Both B32520C1474J000 and R82EC3470DQ70J carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and quality standards. The original DSF100J474 does not specify automotive qualification.

Q: Do the substitute parts maintain the same physical footprint?

A: The B32520C1474J000 maintains similar overall dimensions and identical lead spacing. The R82EC3470DQ70J is more compact with reduced lead spacing (0.197" versus 0.295") and smaller body dimensions. PCB layout verification is required for the KEMET part.

Q: Are all three parts RoHS3 compliant?

A: Yes. The DSF100J474, B32520C1474J000, and R82EC3470DQ70J are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the inventory status of these parts?

A: The DSF100J474 (obsolete) has 699 units in stock. The B32520C1474J000 has 3,168 units available. The R82EC3470DQ70J has 7,370 units available. Both active substitutes offer superior long-term supply availability.

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