ECQ-E1124KZ Equivalent & Substitute Parts

Part Overview

The ECQ-E1124KZ is a 0.12 µF film capacitor manufactured by Panasonic Electronic Components, rated for 100V DC operation with polyester metallized dielectric construction. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The radial through-hole configuration and ±10% tolerance specification define its primary application scope in general-purpose filtering and coupling circuits.

Substiute Parts

ECQ-E1124KZ

Panasonic Electronic ComponentsIn Stock: 811ECQ-E1124KZ Datasheet

Current PartRFQ

ECQ-E2124KF

Panasonic Electronic ComponentsIn Stock: 1102ECQ-E2124KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ECQ-E2124KF qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Capacitance value: 0.12 µF (identical)
• Tolerance: ±10% (identical)
• Dielectric material: Polyester, Metallized (identical)
• Mounting type: Through Hole (identical)
• Package type: Radial (identical)
• Termination: PC Pins (identical)

Substitution Validity: The ECQ-E2124KF operates at 250V DC, which exceeds the 100V requirement of the ECQ-E1124KZ. In applications where the circuit voltage does not exceed 100V, the higher voltage rating of the substitute part provides additional design margin without functional compromise. The extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C) and active product status of the ECQ-E2124KF support long-term availability and production continuity.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2124KF is suitable as a substitute for the obsolete ECQ-E1124KZ in applications where circuit voltage does not exceed 100V DC. The substitute part maintains electrical equivalence through identical capacitance, tolerance, and dielectric specifications. The active product status of the ECQ-E2124KF ensures ongoing availability and manufacturing support.

Physical dimensions differ between the two parts. The ECQ-E2124KF is smaller in length (10.30mm versus 12.00mm) but wider (6.00mm versus 4.50mm) and taller when seated (10.00mm versus 8.50mm). Lead spacing is reduced from 10.00mm to 7.50mm. PCB layout modifications may be required to accommodate these dimensional changes.

The ECQ-E2124KF carries ROHS3 compliance certification, supporting modern manufacturing and environmental regulatory requirements. Selection of this substitute part is appropriate for new designs and production transitions from the obsolete ECQ-E1124KZ.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2124KF replace the ECQ-E1124KZ in all applications?

A: Electrical substitution is valid when circuit voltage does not exceed 100V DC. The higher voltage rating of the ECQ-E2124KF does not create functional issues in lower-voltage applications. Physical dimensions and lead spacing differ, requiring PCB layout verification.

Q: What are the key differences between these parts?

A: Both parts share identical capacitance (0.12 µF), tolerance (±10%), and dielectric material (polyester, metallized). The ECQ-E2124KF has a higher voltage rating (250V versus 100V), extended temperature range (-40°C ~ 105°C versus -40°C ~ 85°C), and different physical dimensions and lead spacing.

Q: Will the ECQ-E2124KF fit the same PCB footprint?

A: No. Lead spacing differs (7.50mm versus 10.00mm), and overall dimensions vary. PCB layout modifications are necessary for mechanical fit.

Q: Is the ECQ-E2124KF compliant with current environmental standards?

A: Yes. The ECQ-E2124KF is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Why is the ECQ-E1124KZ listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The ECQ-E2124KF, as an active product from the same manufacturer with equivalent electrical specifications, provides a path for design continuity and production support.