DSF100J184 Equivalent & Substitute Parts Reference

Part Overview

The DSF100J184 is a 0.18 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 100V DC voltage rating, designed for general-purpose applications in through-hole radial configurations. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

DSF100J184

Cornell Dubilier Electronics (CDE)In Stock: 885DSF100J184 Datasheet

Current PartRFQ

ECQ-E2184JB

Panasonic Electronic ComponentsIn Stock: 2755ECQ-E2184JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSF100J184 is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Capacitance value: 0.18 µF (exact match required)
• Tolerance: ±5% (exact match required)
• Dielectric material: Polyester, Metallized (exact match required)
• Mounting type: Through Hole (exact match required)
• Package configuration: Radial (exact match required)
• Lead spacing: 0.295" (7.50mm) (exact match required)
• Termination type: PC Pins (exact match required)

Allowable Parameter Variations:

• Voltage rating: Substitute must equal or exceed 100V DC
• Operating temperature range: Substitute may extend beyond -40°C ~ 85°C
• Physical dimensions: Minor variations acceptable if lead spacing and mounting compatibility are maintained
• Product status: Active parts are preferred for obsolete components

The ECQ-E2184JB meets all critical matching parameters and exceeds the voltage rating requirement, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2184JB is a qualified substitute for the DSF100J184 based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical capacitance (0.18 µF) and tolerance (±5%) specifications. The increased DC voltage rating (250V versus 100V) provides additional design margin and does not create incompatibility in circuits designed for 100V operation.

Mechanical Compatibility: Lead spacing (0.295" / 7.50mm) and through-hole radial configuration are identical, ensuring direct PCB footprint compatibility without layout modifications.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Product Status: The ECQ-E2184JB is an active product with confirmed inventory availability (2736 pcs), whereas the DSF100J184 is obsolete. This substitution ensures long-term supply chain continuity.

Temperature Performance: The extended operating temperature range of the substitute (-40°C ~ 105°C) provides enhanced thermal margin compared to the original specification (-40°C ~ 85°C).

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2184JB be used as a direct replacement for the DSF100J184 without circuit modifications?

A: Yes. The ECQ-E2184JB is electrically and mechanically compatible with the DSF100J184. Identical lead spacing (7.50mm), capacitance (0.18 µF), tolerance (±5%), and mounting configuration (through-hole radial) permit direct substitution on existing PCB designs without layout changes.

Q: Why does the substitute have a higher voltage rating (250V versus 100V)?

A: Higher voltage ratings in film capacitors do not create incompatibility in lower-voltage applications. The 250V rating of the ECQ-E2184JB provides additional design margin and reliability in 100V circuits. This is a beneficial characteristic for substitution.

Q: Are there any physical dimension differences between these parts?

A: Minor dimensional variations exist. The DSF100J184 measures 0.402" L x 0.142" W (10.20mm x 3.60mm) with a maximum seated height of 0.394" (10.00mm). The ECQ-E2184JB measures 0.406" L x 0.197" W (10.30mm x 5.00mm) with a maximum seated height of 0.421" (10.70mm). These differences are within typical PCB design tolerances for radial component placement. Verify clearance in space-constrained applications.

Q: What is the significance of the different dielectric descriptions (Polyester, Metallized - Stacked versus Polyester, Metallized)?

A: Both components use polyester film with metallized construction. The "stacked" designation for the original part indicates internal construction method but does not affect electrical performance or substitution compatibility. The functional characteristics remain equivalent.

Q: Is the ECQ-E2184JB available in the same packaging as the DSF100J184?

A: The DSF100J184 is supplied in standard packaging, while the ECQ-E2184JB is supplied in bulk packaging. Both are through-hole radial components with identical lead configurations. Packaging format does not affect component functionality or PCB compatibility.

Q: What compliance certifications apply to both parts?

A: Both the DSF100J184 and ECQ-E2184JB are ROHS3 compliant and REACH unaffected. Both are classified under ECCN EAR99 and HTSUS 8532.25.0070, meeting current environmental and trade compliance requirements.