ECQ-E6683KZ Equivalent & Substitute Parts

Part Overview

The ECQ-E6683KZ is a 0.068 µF film capacitor rated for 630V DC operation with polyester metallized dielectric construction. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The ECQ-E6683KZ features radial through-hole mounting with PC pin termination, suitable for general-purpose applications requiring stable capacitance and high voltage tolerance across industrial temperature ranges.

Substiute Parts

ECQ-E6683KZ

Panasonic Electronic ComponentsIn Stock: 855ECQ-E6683KZ Datasheet

Current PartRFQ

ECQ-E6683KF

Panasonic Electronic ComponentsIn Stock: 4070ECQ-E6683KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECQ-E6683KZ is determined by the following critical parameters:

• Capacitance Value: Must be 0.068 µF (no tolerance deviation acceptable for direct substitution)
• Voltage Rating - DC: Must be 630V or higher
• Dielectric Material: Must be polyester, metallized construction
• Mounting Type: Must be through-hole radial configuration
• Termination Style: Must use PC pins
• Tolerance: Must be ±10% or tighter

The ECQ-E6683KF qualifies as a direct substitute based on these parameters. Both parts share identical capacitance, tolerance, DC voltage rating, dielectric material, mounting configuration, and termination style. The substitute part is manufactured by the same supplier (Panasonic Electronic Components) and maintains compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E6683KF is a qualified substitute for the obsolete ECQ-E6683KZ based on electrical parameter equivalence. Both components maintain identical capacitance, tolerance, DC voltage rating, and dielectric material specifications. The substitute part is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

Physical dimension differences exist between the two parts. The ECQ-E6683KF is slightly longer (0.728" vs 0.650") and narrower (0.228" vs 0.295"), with reduced seated height (0.472" vs 0.630") and increased lead spacing (0.591" vs 0.531"). PCB layout verification is required to confirm mechanical compatibility in the target application.

The ECQ-E6683KF provides an extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C) and includes an AC voltage rating of 250V, offering enhanced performance margins for applications requiring higher temperature operation.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E6683KF be used as a direct electrical replacement for the ECQ-E6683KZ?

A: Yes, from an electrical standpoint. Both parts have identical capacitance (0.068 µF), tolerance (±10%), DC voltage rating (630V), and dielectric material (polyester, metallized). Electrical performance in the circuit will be equivalent.

Q: What are the physical differences between these parts?

A: The ECQ-E6683KF has different dimensions and lead spacing. The substitute is 0.078" longer, 0.067" narrower, 0.158" shorter in seated height, and has 0.060" greater lead spacing. PCB layout must be verified before substitution.

Q: Does the ECQ-E6683KF fit in the same PCB footprint?

A: Not necessarily. The different lead spacing (0.591" vs 0.531") and physical dimensions require PCB layout verification. The footprint may need adjustment to accommodate the substitute part.

Q: Why is the ECQ-E6683KZ obsolete?

A: The ECQ-E6683KZ is classified as obsolete by the manufacturer. The ECQ-E6683KF represents the current active equivalent in the ECQ-E series.

Q: What compliance certifications does the substitute part have?

A: The ECQ-E6683KF is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Is the extended temperature range of the ECQ-E6683KF beneficial?

A: The substitute operates to 105°C versus 85°C for the original part, providing additional thermal margin. This is advantageous for applications in elevated temperature environments but does not affect compatibility in standard temperature applications.