DSF050J683 Film Capacitor - Equivalent & Substitute Parts

Part Overview

The DSF050J683 is a 0.068 µF film capacitor rated at 50V DC, manufactured by Cornell Dubilier Electronics (CDE) in the DSF series. This component is a polyester metallized-stacked radial film capacitor designed for general-purpose applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and repair operations. Substitute parts must maintain identical capacitance and tolerance values while accommodating the electrical and mechanical constraints of the original application.

Key Parameters

Parameter	Value	Criticality for Substitution
Capacitance	0.068 µF	Must Match Exactly
Tolerance	±5%	Must Match Exactly
Voltage Rating - DC	50V	Substitute Must Equal or Exceed
Dielectric Material	Polyester, Metallized - Stacked	Must Match
Mounting Type	Through Hole	Must Match
Package / Case	Radial	Must Match
Lead Spacing	0.197" (5.00mm)	Must Match
Termination	PC Pins	Must Match
Operating Temperature Range	-40°C ~ 85°C	Substitute Must Cover or Exceed
RoHS Status	ROHS3 Compliant	Must Match

Substitute Part Grouping Explanation

Substitution logic for the DSF050J683 is based on strict electrical and mechanical compatibility. All substitute parts must satisfy the following criteria:

Mandatory Matching Parameters:

Capacitance: 0.068 µF (exact match required)
Tolerance: ±5% (exact match required)
Dielectric Material: Polyester, Metallized - Stacked (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial (exact match required)
Lead Spacing: 0.197" (5.00mm) (exact match required)
Termination: PC Pins (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

Voltage Rating - DC: Substitute must equal or exceed 50V
Operating Temperature Range: Substitute must cover the original range or provide extended range
Physical Dimensions: Minor variations acceptable if lead spacing and mounting type remain unchanged
Product Status: Active status preferred for long-term availability

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Parameter	DSF050J683 (Original)	B32529C0683J000 (Direct Substitute)	R82EC2680AA60J (Similar Substitute)
Manufacturer	Cornell Dubilier Electronics (CDE)	EPCOS - TDK Electronics	KEMET
Capacitance	0.068 µF	0.068 µF	0.068 µF
Tolerance	±5%	±5%	±5%
Voltage Rating - DC	50V	63V	100V
Dielectric Material	Polyester, Metallized - Stacked	Polyester, Polyethylene Terephthalate (PET), Metallized - Stacked	Polyester, Polyethylene Terephthalate (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 / Case	Radial	Radial	Radial
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Termination	PC Pins	PC Pins	PC Pins
Size / Dimension	0.287" L x 0.126" W (7.30mm x 3.20mm)	0.287" L x 0.098" W (7.30mm x 2.50mm)	0.283" L x 0.098" W (7.20mm x 2.50mm)
Height - Seated (Max)	0.236" (6.00mm)	0.256" (6.50mm)	0.260" (6.60mm)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Availability	1027 Pcs	5008 Pcs	71453 Pcs

Engineering Selection Recommendations

B32529C0683J000 (Direct Substitute - EPCOS / TDK Electronics):

This part is classified as a direct substitute. It matches all mandatory parameters including capacitance, tolerance, dielectric material, mounting type, package configuration, lead spacing, and termination. The voltage rating of 63V exceeds the original 50V requirement. The operating temperature range extends from -55°C to 125°C, providing broader environmental coverage than the original -40°C to 85°C specification. This part carries ROHS3 compliance and is currently in active production status with 5008 units in stock. The B32529C0683J000 is suitable for direct replacement in applications where the original DSF050J683 is no longer available.

R82EC2680AA60J (Similar Substitute - KEMET):

This part is classified as a similar substitute. It matches all mandatory parameters and provides a 100V DC voltage rating, offering additional voltage margin beyond the original 50V specification. The operating temperature range of -55°C to 105°C covers the original specification. This part carries ROHS3 compliance and AEC-Q200 automotive qualification. The R82EC2680AA60J is in active production with 71453 units in stock, providing superior long-term availability. Physical dimensions show minor variations in length (7.20mm vs. 7.30mm) and height (6.60mm vs. 6.00mm), but lead spacing and mounting configuration remain identical. This part is suitable for replacement in applications requiring higher voltage margin or automotive-grade reliability.

Both substitutes are ROHS3 compliant and maintain electrical equivalence with the original part. Selection between them depends on application-specific requirements for voltage margin, temperature range, and supply chain considerations.

Frequently Asked Questions (FAQ)

Q1: Can the B32529C0683J000 be used as a direct replacement for the DSF050J683?

A: Yes. The B32529C0683J000 matches all mandatory electrical and mechanical parameters. The 63V rating exceeds the original 50V requirement, and the extended temperature range (-55°C to 125°C) covers the original specification (-40°C to 85°C). Lead spacing, package type, and termination are identical. This part is suitable for direct PCB substitution.

Q2: What is the difference between the two substitute parts?

A: Both substitutes match the mandatory parameters. The primary differences are voltage rating (B32529C0683J000 at 63V versus R82EC2680AA60J at 100V), operating temperature range (125°C maximum versus 105°C maximum), and physical dimensions. The R82EC2680AA60J provides higher voltage margin and carries AEC-Q200 automotive qualification. Selection depends on application requirements and supply chain availability.

Q3: Are there any physical compatibility concerns with the substitute parts?

A: Lead spacing (0.197" / 5.00mm) and mounting type (Through Hole, Radial) are identical across all three parts. The substitute parts show minor variations in body length and height. The B32529C0683J000 is 0.287" L x 0.256" H (7.30mm x 6.50mm), and the R82EC2680AA60J is 0.283" L x 0.260" H (7.20mm x 6.60mm), compared to the original 0.287" L x 0.236" H (7.30mm x 6.00mm). These variations are within typical PCB layout tolerances for radial through-hole components and do not affect electrical performance or mechanical fit.

Q4: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both B32529C0683J000 and R82EC2680AA60J are ROHS3 compliant, matching the original DSF050J683 compliance status.

Q5: Which substitute part should be selected for automotive applications?

A: The R82EC2680AA60J carries AEC-Q200 automotive qualification and is recommended for automotive applications. The B32529C0683J000 is specified for automotive and EMI/RFI suppression applications but does not carry explicit AEC-Q200 rating in the provided data.

Q6: What is the lead spacing requirement, and do all parts match?

A: The lead spacing requirement is 0.197" (5.00mm). All three parts—the original DSF050J683 and both substitutes (B32529C0683J000 and R82EC2680AA60J)—maintain identical 0.197" (5.00mm) lead spacing, ensuring PCB footprint compatibility.

Q7: Can the R82EC2680AA60J be used in place of the DSF050J683 in high-temperature applications?

A: The R82EC2680AA60J operates from -55°C to 105°C, which covers the original specification of -40°C to 85°C. For applications requiring operation above 85°C but below 105°C, this part is suitable. The B32529C0683J000 extends to 125°C and provides additional thermal margin.

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