DSF100J224 Film Capacitor - Equivalent & Substitute Parts

Part Overview

The DSF100J224 is a 0.22 µF film capacitor rated for 100V DC, manufactured by Cornell Dubilier Electronics (CDE) in the DSF series. This component features a polyester metallized-stacked dielectric with radial through-hole termination, designed for general-purpose applications across an operating temperature range of -40°C to 85°C.

The DSF100J224 is classified as obsolete. Identifying equivalent 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

DSF100J224

Cornell Dubilier Electronics (CDE)In Stock: 1082DSF100J224 Datasheet

Current PartRFQ

B32520C1224J000

EPCOS - TDK ElectronicsIn Stock: 39232B32520C1224J000 Datasheet

DirectRFQ

R82EC3220AA70J

KEMETIn Stock: 37883R82EC3220AA70J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DSF100J224 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for a part to function as a direct substitute:

Critical Matching Parameters:

• Capacitance: 0.22 µF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage Rating - DC: 100V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester, Metallized - Stacked (functional equivalence)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Termination: PC Pins (exact match required)

Acceptable Variation Parameters:

• Operating Temperature Range: Substitute parts may exceed the original range
• Physical Dimensions: Minor variations acceptable if lead spacing remains 0.295" (7.50mm) or compatible with PCB layout
• Voltage Rating - AC: Not a primary constraint for DC-rated applications
• Product Status: Active parts preferred for long-term availability

The identified substitute parts meet these criteria and are classified as direct or similar equivalents based on their alignment with the above parameters.

Parameter Comparison

Engineering Selection Recommendations

B32520C1224J000 (EPCOS - TDK Electronics):

This part is classified as a direct substitute. It matches all critical electrical parameters (0.22 µF, ±5%, 100V DC) and mechanical specifications (radial through-hole, PC pins, 0.295" lead spacing). The B32520C1224J000 is part of the active B3252* MKT General Purpose series and carries AEC-Q200 automotive qualification. Operating temperature range (-55°C ~ 125°C) exceeds the original specification. ROHS3 compliance and high inventory availability (39,172 pcs) support production continuity. This part is suitable for direct replacement in applications where the original lead spacing of 0.295" (7.50mm) is maintained on the PCB.

R82EC3220AA70J (KEMET):

This part is classified as a similar substitute. It matches all critical electrical parameters (0.22 µF, ±5%, 100V DC) and mounting type (radial through-hole, PC pins). The R82EC3220AA70J is part of the active R82 series and carries AEC-Q200 automotive qualification. Operating temperature range (-55°C ~ 105°C) exceeds the original specification. ROHS3 compliance and high inventory availability (37,852 pcs) support production continuity.

Lead Spacing Consideration: The R82EC3220AA70J has a lead spacing of 0.197" (5.00mm), which differs from the original 0.295" (7.50mm). This part requires PCB layout verification before implementation. Physical dimensions are also reduced (7.20mm L x 3.50mm W vs. 10.20mm L x 4.00mm W), which may affect board space and thermal management characteristics.

Both substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q1: Can the B32520C1224J000 be used as a direct replacement for the DSF100J224?

A: Yes. The B32520C1224J000 matches all critical electrical and mechanical parameters: 0.22 µF capacitance, ±5% tolerance, 100V DC rating, polyester metallized dielectric, radial through-hole mounting, PC pin termination, and 0.295" (7.50mm) lead spacing. No PCB layout modifications are required.

Q2: What is the primary limitation of using the R82EC3220AA70J as a substitute?

A: The R82EC3220AA70J has a lead spacing of 0.197" (5.00mm) instead of the original 0.295" (7.50mm). This difference requires verification against the PCB footprint before implementation. Physical dimensions are also smaller, which may affect thermal performance in high-current applications.

Q3: Are both substitute parts suitable for automotive applications?

A: Both the B32520C1224J000 and R82EC3220AA70J carry AEC-Q200 automotive qualification. However, the original DSF100J224 is specified for general-purpose applications. Automotive qualification of the substitutes indicates enhanced reliability standards but does not alter the electrical equivalence for general-purpose use.

Q4: What is the difference in operating temperature range between the original and substitute parts?

A: The DSF100J224 operates from -40°C to 85°C. Both substitutes operate across wider ranges: B32520C1224J000 (-55°C ~ 125°C) and R82EC3220AA70J (-55°C ~ 105°C). For applications within the original temperature range, both substitutes are fully compatible. For applications requiring extended temperature operation, the substitutes provide additional margin.

Q5: Are there any compliance or regulatory differences between the original and substitute parts?

A: All three parts are ROHS3 compliant and REACH unaffected. No regulatory barriers exist for substitution. The substitute parts maintain equivalent environmental compliance status.

Q6: Which substitute part should be selected for new designs?

A: The B32520C1224J000 is recommended for new designs requiring direct PCB compatibility without layout modifications. The R82EC3220AA70J is suitable only if the PCB footprint accommodates the 0.197" (5.00mm) lead spacing and reduced physical dimensions.