ECQ-E1395KZ Equivalent & Substitute Parts

Part Overview

The ECQ-E1395KZ is a 3.9 µF film capacitor manufactured by Panasonic Electronic Components, rated for 100V DC operation with polyester metallized dielectric construction. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. The radial through-hole configuration and ±10% tolerance make this part suitable for general-purpose applications requiring stable capacitance performance across the specified operating temperature range of -40°C to 85°C.

Substiute Parts

ECQ-E1395KZ

Panasonic Electronic ComponentsIn Stock: 936ECQ-E1395KZ Datasheet

Current PartRFQ

ECQ-E2395KF

Panasonic Electronic ComponentsIn Stock: 5691ECQ-E2395KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E1395KZ is determined by the following critical parameters:

• Capacitance Value: Must be 3.9 µF to maintain circuit functionality
• Tolerance: ±10% tolerance ensures compatibility with design specifications
• Dielectric Material: Polyester, metallized construction maintains electrical characteristics
• Mounting Type & Package: Through-hole radial configuration for PCB compatibility
• Termination Style: PC pins for standard through-hole assembly

The ECQ-E2395KF qualifies as a substitute based on matching capacitance, tolerance, dielectric material, mounting type, package style, and termination configuration. While the substitute part features enhanced voltage rating (250V DC vs. 100V DC) and extended operating temperature range (-40°C to 105°C vs. -40°C to 85°C), these represent performance improvements that do not compromise compatibility in applications designed for the original 100V specification.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2395KF is the designated substitute for the obsolete ECQ-E1395KZ. Selection is based on:

• Product Status: The substitute is active and currently manufactured, ensuring long-term availability and supply chain continuity
• Compliance: The ECQ-E2395KF is ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements
• Electrical Compatibility: Identical capacitance and tolerance values ensure circuit performance equivalence
• Physical Compatibility: Matching radial through-hole configuration and PC pin termination enable direct PCB mounting without layout modification
• Performance Enhancement: The higher voltage rating (250V DC) and extended temperature range (-40°C to 105°C) provide operational margin beyond the original specification

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2395KF be used as a direct replacement for the ECQ-E1395KZ?

A: Yes. Both parts share identical capacitance (3.9 µF), tolerance (±10%), dielectric material (polyester, metallized), mounting type (through-hole radial), and termination style (PC pins). The substitute meets all functional requirements of the original part.

Q: What are the physical differences between these parts?

A: The ECQ-E2395KF has a slightly smaller footprint (26.00mm L × 11.00mm W vs. 30.50mm L × 11.00mm W) and different lead spacing (22.50mm vs. 27.50mm). Height-seated dimensions also differ (21.50mm vs. 19.00mm). PCB layout verification is required before substitution.

Q: Why does the substitute have a higher voltage rating?

A: The ECQ-E2395KF is rated for 250V DC, compared to the original 100V DC rating. This represents a design improvement in the ECQ-E2 series and does not affect compatibility in circuits designed for 100V operation. The higher rating provides additional safety margin.

Q: Are there compliance differences between the two parts?

A: The ECQ-E2395KF is ROHS3 compliant and REACH unaffected. The original ECQ-E1395KZ compliance status is not specified. Modern procurement typically requires ROHS3 compliance, making the substitute preferable for new designs and legacy system updates.

Q: What is the lead spacing difference, and does it affect PCB compatibility?

A: The ECQ-E1395KZ has 27.50mm lead spacing; the ECQ-E2395KF has 22.50mm lead spacing. PCB hole patterns must be verified for compatibility. If the original PCB was designed for 27.50mm spacing, the substitute cannot be mounted without layout modification.