DSF100J124 Equivalent & Substitute Parts

Part Overview

The DSF100J124 is a 0.12 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating, polyester metallized dielectric, and through-hole radial package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. Suitable alternatives must maintain core electrical performance while meeting current manufacturing and compliance standards.

Substiute Parts

DSF100J124

Cornell Dubilier Electronics (CDE)In Stock: 720DSF100J124 Datasheet

Current PartRFQ

167124J100B-F

Cornell Dubilier Electronics (CDE)In Stock: 1230167124J100B-F Datasheet

DirectRFQ

ECQ-E2124JF

Panasonic Electronic ComponentsIn Stock: 2273ECQ-E2124JF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF100J124 requires equivalence in the following critical parameters:

Mandatory Equivalence:

• Capacitance value: 0.12 µF
• Tolerance: ±5%
• Dielectric material: Polyester, Metallized
• Mounting type: Through Hole
• Lead spacing: 0.295" (7.50mm)
• Package type: Radial

Allowable Variation:

• Voltage rating: Must equal or exceed 100V DC
• Operating temperature range: May exceed the original specification
• Physical dimensions: Minor variations permitted if electrical and mechanical fit remain compatible
• Product status: Active status preferred for procurement continuity

Two substitute parts meet these criteria: the CDE 167124J100B-F (direct manufacturer alternative) and the Panasonic ECQ-E2124JF (cross-manufacturer equivalent).

Parameter Comparison

Engineering Selection Recommendations

CDE 167124J100B-F: This part is the preferred direct replacement for the DSF100J124. It maintains the same electrical specifications (0.12 µF, ±5%, 100V DC) and mechanical fit (lead spacing 0.295", radial package, through-hole mounting). The substitute offers an extended operating temperature range (-55°C ~ 125°C) and active product status, ensuring long-term availability. ROHS3 and REACH compliance are maintained. This part is suitable for direct substitution in applications requiring equivalent performance.

Panasonic ECQ-E2124JF: This Panasonic component provides equivalent electrical functionality with identical capacitance, tolerance, and lead spacing. The higher voltage rating (250V DC) offers design margin advantage. The operating temperature range (-40°C ~ 105°C) exceeds the original specification. Physical dimensions vary slightly from the original, with increased width (0.236" vs. 0.130") requiring verification of PCB layout clearance. Active product status and full compliance certification support procurement reliability. This part is suitable for applications where voltage margin and extended temperature range are beneficial.

Frequently Asked Questions (FAQ)

Q: Can the CDE 167124J100B-F replace the DSF100J124 without circuit modifications? A: Yes. Both parts maintain identical capacitance (0.12 µF), tolerance (±5%), voltage rating (100V DC), and lead spacing (0.295"). The substitute operates across an extended temperature range without affecting circuit performance in the original operating envelope.

Q: What is the primary difference between the two substitute parts? A: The CDE 167124J100B-F provides a direct specification match with minimal dimensional variation. The Panasonic ECQ-E2124JF offers a higher voltage rating (250V vs. 100V) and extended temperature range, with slightly larger physical dimensions that require PCB layout verification.

Q: Is the increased voltage rating of the Panasonic part a disadvantage? A: No. A higher voltage rating does not create circuit performance issues. The part operates at the same voltage as the original (100V) while providing additional safety margin and thermal stability.

Q: Will the dimensional differences affect PCB compatibility? A: The CDE 167124J100B-F dimensions are comparable to the original. The Panasonic ECQ-E2124JF has increased width (0.236" vs. 0.130"), requiring confirmation that PCB routing and component placement accommodate the larger package footprint.

Q: Are both substitute parts available for procurement? A: Yes. Both parts maintain active product status with current inventory availability. The CDE 167124J100B-F has 1167 pcs in stock. The Panasonic ECQ-E2124JF has 2250 pcs in stock.

Q: Do the substitute parts meet the same compliance standards as the original? A: Yes. Both alternatives are ROHS3 Compliant and REACH Unaffected, maintaining equivalent environmental and regulatory compliance.