DSF100J183 Film Capacitor Equivalent & Substitute Parts

Part Overview

The DSF100J183 is a 0.018 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 100V DC operation with ±5% tolerance. This component features a polyester metallized-stacked dielectric construction in a radial through-hole package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing circuit maintenance, repair, and redesign applications. Suitable alternatives must maintain the same capacitance value, tolerance, and voltage rating while accommodating the physical and electrical constraints of the target application.

Substiute Parts

DSF100J183

Cornell Dubilier Electronics (CDE)In Stock: 1024DSF100J183 Datasheet

Current PartRFQ

168183J100A-F

Cornell Dubilier Electronics (CDE)In Stock: 842168183J100A-F Datasheet

DirectRFQ

ECQ-E2183JB

Panasonic Electronic ComponentsIn Stock: 1868ECQ-E2183JB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the DSF100J183 is based on the following criteria:

Direct Substitutes maintain all critical electrical parameters: capacitance (0.018 µF), tolerance (±5%), minimum voltage rating (100V DC), dielectric type (polyester metallized), and lead spacing (0.197" / 5.00mm). Physical dimensions may vary within acceptable limits for through-hole mounting.

Similar Substitutes share the same capacitance, tolerance, and lead spacing but may have higher voltage ratings or different operating temperature ranges. These parts are electrically compatible but may introduce design margin changes.

The following parameters determine substitution eligibility:

• Capacitance value must be 0.018 µF
• Tolerance must be ±5% or tighter
• Voltage rating must be ≥100V DC
• Lead spacing must be 0.197" (5.00mm)
• Mounting type must be through-hole radial
• Dielectric must be polyester metallized
• RoHS3 compliance required

Parameter Comparison

Engineering Selection Recommendations

168183J100A-F (Direct Substitute - Preferred)

The 168183J100A-F is a direct substitute for the DSF100J183. Both parts are manufactured by Cornell Dubilier Electronics and share identical capacitance (0.018 µF), tolerance (±5%), DC voltage rating (100V), and lead spacing (0.197" / 5.00mm). The 168183J100A-F is currently in active production status with 770 units in stock, compared to the obsolete DSF100J183. The substitute features an extended operating temperature range (-55°C ~ 125°C) and improved thermal performance. Physical dimensions are slightly smaller (0.283" L x 0.098" W vs. 0.295" L x 0.126" W), which may provide additional PCB layout flexibility. Both parts are ROHS3 compliant and REACH unaffected. This part is suitable for direct replacement in existing designs without circuit modification.

ECQ-E2183JB (Similar Substitute - Higher Voltage Rating)

The ECQ-E2183JB manufactured by Panasonic Electronic Components is a similar substitute with identical capacitance (0.018 µF), tolerance (±5%), and lead spacing (0.197" / 5.00mm). This part features a higher DC voltage rating (250V) compared to the original 100V specification, providing increased design margin for voltage transients. The operating temperature range (-40°C ~ 105°C) exceeds the original specification. Physical dimensions are slightly larger (0.311" L x 0.169" W), requiring verification of available PCB space. The ECQ-E2183JB is currently in active production with 1810 units in stock. This part is ROHS3 compliant and REACH unaffected. Selection of this substitute is appropriate when enhanced voltage margin is required or when PCB layout accommodates the larger package footprint.

Frequently Asked Questions (FAQ)

Q: Can the 168183J100A-F replace the DSF100J183 in existing circuit boards?

A: Yes. The 168183J100A-F is a direct substitute with matching capacitance (0.018 µF), tolerance (±5%), voltage rating (100V DC), and lead spacing (0.197" / 5.00mm). Physical dimensions are slightly smaller, which does not prevent installation in existing through-hole patterns. No circuit modification is required.

Q: What is the difference between the 168183J100A-F and ECQ-E2183JB?

A: Both parts share the same capacitance, tolerance, and lead spacing. The primary differences are: (1) voltage rating—168183J100A-F is rated 100V DC while ECQ-E2183JB is rated 250V DC; (2) manufacturer—Cornell Dubilier Electronics versus Panasonic; (3) physical dimensions—168183J100A-F is smaller. The ECQ-E2183JB provides higher voltage margin but requires verification of PCB space.

Q: Are all three parts RoHS3 compliant?

A: Yes. The DSF100J183, 168183J100A-F, and ECQ-E2183JB are all ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Does the higher voltage rating of the ECQ-E2183JB affect circuit performance?

A: No. A higher voltage rating does not alter the capacitance value or electrical performance in the circuit. The 250V rating of the ECQ-E2183JB provides additional safety margin for voltage transients without changing the capacitive behavior at the 100V operating point.

Q: Can I use the ECQ-E2183JB if my PCB layout is designed for the smaller DSF100J183?

A: Physical verification is required. The ECQ-E2183JB is larger (0.311" L x 0.169" W vs. 0.295" L x 0.126" W). While lead spacing is identical (0.197" / 5.00mm), the increased body dimensions may contact adjacent components or violate clearance requirements. Confirm available PCB space before selection.

Q: What is the operating temperature range for each part?

A: DSF100J183: -40°C ~ 85°C; 168183J100A-F: -55°C ~ 125°C; ECQ-E2183JB: -40°C ~ 105°C. The 168183J100A-F offers the widest temperature range, suitable for applications requiring extended thermal performance.

Q: Are these parts available in different packaging options?

A: The DSF100J183 is packaged in bulk. The 168183J100A-F and ECQ-E2183JB are also packaged in bulk. All three parts are through-hole radial components with identical lead spacing (0.197" / 5.00mm), suitable for standard PCB assembly processes.