ECQ-E1334KZ Equivalent & Substitute Parts

Part Overview

The ECQ-E1334KZ is a 0.33 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 system maintenance and new design implementations. The radial through-hole configuration and ±10% tolerance specification define its primary application scope in general-purpose filtering and coupling circuits.

Substiute Parts

ECQ-E1334KZ

Panasonic Electronic ComponentsIn Stock: 961ECQ-E1334KZ Datasheet

Current PartRFQ

ECQ-E2334KF

Panasonic Electronic ComponentsIn Stock: 2216ECQ-E2334KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E1334KZ is determined by strict equivalence in the following parameters:

• Capacitance Value: Must be 0.33 µF (no tolerance deviation permitted)
• Dielectric Type: Polyester, metallized construction required
• Mounting Configuration: Through-hole radial package mandatory
• Termination Style: PC pins required
• Tolerance: ±10% specification maintained

The ECQ-E2334KF qualifies as a direct substitute based on matching capacitance, dielectric material, mounting type, package style, and tolerance specification. Voltage rating elevation (100V to 250V DC) and operating temperature range extension (-40°C ~ 85°C to -40°C ~ 105°C) represent parameter improvements that do not compromise compatibility in applications designed for the original 100V specification.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2334KF is the qualified substitute for the obsolete ECQ-E1334KZ based on electrical parameter equivalence and active product status. The substitute maintains identical capacitance, tolerance, dielectric composition, and mounting configuration while providing enhanced voltage rating margin and extended operating temperature range. The substitute part carries ROHS3 compliance certification, meeting current regulatory requirements for new designs and system updates.

Lead spacing differs between the two parts (15.00mm versus 10.00mm), requiring PCB layout verification prior to implementation. Physical dimensions are reduced in the substitute part, which may provide layout advantages in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2334KF replace ECQ-E1334KZ in existing circuit designs?

A: Yes, provided that PCB lead spacing accommodates the 10.00mm pitch of the substitute part. The electrical characteristics—capacitance, tolerance, and dielectric type—are identical. The higher voltage rating of the substitute (250V DC versus 100V DC) does not create compatibility issues in circuits designed for 100V operation.

Q: What is the significance of the different lead spacing between these parts?

A: Lead spacing (15.00mm for ECQ-E1334KZ versus 10.00mm for ECQ-E2334KF) determines the physical distance between component pins on the PCB. Existing PCB designs must have hole patterns matching the substitute part's 10.00mm spacing, or PCB redesign is required.

Q: Does the extended operating temperature range of ECQ-E2334KF affect circuit performance?

A: The extended range (-40°C ~ 105°C versus -40°C ~ 85°C) represents an operational capability improvement. Applications operating within the original temperature specification of -40°C ~ 85°C experience no performance change.

Q: Is ROHS3 compliance relevant for this substitution?

A: ROHS3 compliance of the ECQ-E2334KF meets current environmental and regulatory standards for electronic components. This certification is applicable for new designs and system updates subject to ROHS requirements.

Q: Are there physical size differences between these parts?

A: Yes. The ECQ-E1334KZ measures 0.669" L x 0.177" W (17.00mm x 4.50mm) with 0.433" seated height. The ECQ-E2334KF measures 0.472" L x 0.256" W (12.00mm x 6.50mm) with 0.512" seated height. The substitute part is physically smaller in length but slightly larger in width and height.