DSF100J123

Part Overview

The DSF100J123 is a 0.012 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 100V DC operation with polyester metallized-stacked dielectric construction. This component is classified as obsolete, necessitating identification of compatible substitute components for ongoing design and procurement requirements. The substitute ECQ-E2123JB from Panasonic Electronic Components provides functional equivalence while maintaining active product status and expanded voltage ratings.

Substiute Parts

DSF100J123

Cornell Dubilier Electronics (CDE)In Stock: 1152DSF100J123 Datasheet

Current PartRFQ

ECQ-E2123JB

Panasonic Electronic ComponentsIn Stock: 927ECQ-E2123JB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ECQ-E2123JB qualifies as a direct substitute based on the following critical parameters:

• Capacitance: Both parts are rated 0.012 µF, ensuring electrical equivalence in circuit operation
• Tolerance: Both parts maintain ±5% tolerance specification
• Dielectric Material: Both utilize polyester metallized construction, providing identical electrical characteristics
• Mounting Type and Package: Both are through-hole radial components with identical 0.197" (5.00mm) lead spacing, enabling direct footprint compatibility
• Compliance: Both parts are ROHS3 compliant and classified as EAR99 export control
• Applications: Both are specified for general-purpose use

The ECQ-E2123JB provides enhanced voltage ratings (250V DC and 125V AC) compared to the DSF100J123 (100V DC), making it suitable for all applications requiring the original component. The extended operating temperature range of the substitute (-40°C ~ 105°C) encompasses the original specification (-40°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2123JB is the specified substitute for the obsolete DSF100J123. Selection of the ECQ-E2123JB is justified by:

• Product Continuity: The ECQ-E2123JB maintains active product status with confirmed inventory availability (842 Pcs), ensuring long-term supply chain stability
• Electrical Equivalence: Identical capacitance (0.012 µF) and tolerance (±5%) provide direct circuit performance matching
• Compliance Alignment: Both components maintain ROHS3 compliance and identical export control classifications (EAR99)
• Mechanical Compatibility: Identical lead spacing (0.197" / 5.00mm) and radial through-hole packaging enable direct PCB footprint substitution without layout modifications
• Performance Enhancement: The substitute's increased voltage ratings (250V DC, 125V AC) and extended temperature range provide design margin for applications requiring the original component

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2123JB be used as a direct replacement for the DSF100J123 without PCB modifications? A: Yes. Both components share identical lead spacing (0.197" / 5.00mm) and radial through-hole package configurations. Physical footprint compatibility requires no PCB layout changes.

Q: Does the higher voltage rating of the ECQ-E2123JB (250V DC vs. 100V DC) affect circuit operation? A: No. The substitute's higher voltage rating is compatible with all applications requiring the original 100V DC component. The increased rating provides additional design margin without altering electrical performance in the circuit.

Q: Are there compliance or regulatory differences between these components? A: Both parts maintain ROHS3 compliance and are classified as EAR99 for export control. No compliance implications result from the substitution.

Q: What is the significance of the lead spacing parameter for substitution? A: Lead spacing (0.197" / 5.00mm) determines PCB footprint compatibility. Identical spacing between the original and substitute ensures direct board-level replacement without redesign.

Q: Does the extended operating temperature range of the substitute (105°C vs. 85°C) create any compatibility concerns? A: No. The substitute's expanded temperature range (-40°C ~ 105°C) encompasses the original specification (-40°C ~ 85°C), providing compatibility for all intended operating environments.