ECQ-E1105KZ Equivalent & Substitute Parts

Part Overview

The ECQ-E1105KZ is a 1 µF film capacitor rated for 100V DC operation, manufactured by Panasonic Electronic Components as part of the ECQ-E(K) series. This component features polyester metallized dielectric construction in a radial through-hole package with PC pin termination. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

ECQ-E1105KZ

Panasonic Electronic ComponentsIn Stock: 852ECQ-E1105KZ Datasheet

Current PartRFQ

ECQ-E2105KF

Panasonic Electronic ComponentsIn Stock: 29437ECQ-E2105KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E1105KZ is determined by the following critical parameters:

• Capacitance Value: Must be 1 µF
• Tolerance: Must be ±10%
• Dielectric Type: Must be polyester metallized film
• Mounting Configuration: Must be through-hole radial with PC pin termination
• Lead Spacing: Must be 0.591" (15.00mm) for PCB compatibility
• Voltage Rating: Must meet or exceed 100V DC minimum requirement

The ECQ-E2105KF qualifies as a direct substitute based on these parameters. While it features a higher voltage rating (250V DC) and extended operating temperature range, these represent performance enhancements that do not compromise compatibility with circuits designed for the original 100V specification.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2105KF is the qualified substitute for the obsolete ECQ-E1105KZ. Selection is based on the following engineering criteria:

• Electrical Compatibility: Both components share identical capacitance (1 µF) and tolerance (±10%), with matching dielectric composition and lead spacing. The ECQ-E2105KF's higher voltage rating (250V DC versus 100V DC) provides additional design margin without affecting circuit operation at the original 100V specification.

• Mechanical Compatibility: Lead spacing remains constant at 0.591" (15.00mm), ensuring direct PCB footprint compatibility. Minor dimensional variations in length and height do not impact mounting or clearance in standard through-hole applications.

• Product Availability: The ECQ-E2105KF is in active production status with substantial inventory availability (29,406 pcs), whereas the ECQ-E1105KZ is obsolete with limited remaining stock (790 pcs).

• Compliance Status: The ECQ-E2105KF carries RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2105KF be used as a direct replacement for the ECQ-E1105KZ in existing designs?

A: Yes. Both components have identical capacitance (1 µF), tolerance (±10%), dielectric material (polyester metallized), lead spacing (15.00mm), and mounting configuration (through-hole radial). The ECQ-E2105KF's higher voltage rating and extended temperature range do not create compatibility issues in circuits designed for 100V operation.

Q: What are the physical differences between these two components?

A: The ECQ-E2105KF is slightly larger in length (18.50mm versus 17.00mm) and height (16.00mm versus 15.00mm), while being marginally narrower (7.40mm versus 8.00mm). These dimensional variations are within typical PCB layout tolerances for through-hole components and do not affect standard mounting practices.

Q: Why does the ECQ-E2105KF have a higher voltage rating?

A: The ECQ-E2105KF belongs to the ECQ-E(F) series, which is designed for higher voltage applications (250V DC). This represents a different product line within Panasonic's film capacitor portfolio. The higher rating provides additional safety margin and is fully compatible with circuits operating at lower voltages.

Q: Are there any compliance or certification differences?

A: The ECQ-E2105KF includes RoHS3 compliance and REACH unaffected status, meeting modern regulatory standards. The ECQ-E1105KZ, being an older obsolete product, does not carry these certifications. For new designs or procurement requiring regulatory compliance, the ECQ-E2105KF is the appropriate selection.

Q: What is the lead spacing specification, and why is it important?

A: Both components have a lead spacing of 0.591" (15.00mm), which defines the distance between the two PC pins. This specification is critical for PCB footprint compatibility and ensures that the substitute component will mount correctly on existing circuit boards designed for the original part.