ECQ-M4682KZ Equivalent & Substitute Parts

Part Overview

The ECQ-M4682KZ is a 6800 pF film capacitor manufactured by Panasonic Electronic Components, rated for 400V DC operation with polyester dielectric material. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production, maintenance, and repair applications. The radial through-hole configuration and ±10% tolerance make it suitable for general-purpose filtering and coupling applications in electronic circuits.

Substiute Parts

ECQ-M4682KZ

Panasonic Electronic ComponentsIn Stock: 888ECQ-M4682KZ Datasheet

Current PartRFQ

BFC237151682

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1099BFC237151682 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECQ-M4682KZ are qualified based on the following critical parameters:

• Capacitance Value: 6800 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 400V (minimum requirement; higher ratings are acceptable)
• Dielectric Material: Polyester (film capacitor technology)
• Mounting Type: Through Hole (radial configuration)
• Termination: PC Pins (radial lead configuration)

The BFC237151682 meets all substitution criteria. While it features a metallized polyester dielectric (an enhancement over standard polyester) and operates across a wider temperature range (-55°C ~ 105°C versus -40°C ~ 85°C), these represent functional improvements that maintain full compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The BFC237151682 is a direct functional substitute for the ECQ-M4682KZ. Selection between these parts should be based on the following factors:

Product Status: The ECQ-M4682KZ is obsolete. The BFC237151682 is active and maintains current manufacturing support, ensuring long-term availability for production and field replacement scenarios.

Compliance Requirements: The BFC237151682 is ROHS3 compliant, meeting modern regulatory standards. The ECQ-M4682KZ is RoHS non-compliant. For applications subject to RoHS directives or customer compliance mandates, the BFC237151682 is the appropriate selection.

Environmental Performance: The BFC237151682 operates across -55°C ~ 105°C, providing a wider operating envelope than the ECQ-M4682KZ (-40°C ~ 85°C). This extended range accommodates applications with more demanding thermal environments without performance degradation.

Electrical Equivalence: Both parts share identical capacitance, tolerance, and DC voltage ratings. The metallized polyester dielectric in the BFC237151682 represents a technical enhancement that maintains full backward compatibility while improving performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the BFC237151682 be used as a direct replacement for the ECQ-M4682KZ in existing designs?

A: Yes. The BFC237151682 meets all critical electrical parameters: 6800 pF capacitance, ±10% tolerance, 400V DC rating, and radial through-hole configuration. Physical dimensions differ slightly, but both use standard radial lead spacing compatible with PCB layouts designed for the original part.

Q: What is the difference between standard polyester and metallized polyester dielectric?

A: Metallized polyester film uses a thin metal coating applied to the polyester substrate. This construction maintains the same electrical characteristics while offering improved performance in self-healing properties and reliability. For the specified application parameters, both dielectric types are functionally equivalent.

Q: Does the wider operating temperature range of the BFC237151682 affect circuit performance?

A: No. The wider temperature range (-55°C ~ 105°C versus -40°C ~ 85°C) represents an extended capability that does not alter performance within the original operating specification. The part functions identically across the original temperature envelope.

Q: Are there physical dimension differences that affect PCB layout?

A: Yes. The ECQ-M4682KZ measures 0.551" L x 0.256" W with 0.374" lead spacing. The BFC237151682 measures 0.394" L x 0.098" W with 0.300" lead spacing. Both are radial configurations, but the substitute is more compact. Verify PCB footprint compatibility before implementation.

Q: Why is RoHS compliance important for this substitution?

A: RoHS3 compliance ensures the BFC237151682 meets current environmental and regulatory standards for electronic components. For new designs, production runs subject to RoHS directives, or customer specifications requiring compliance, the BFC237151682 is the appropriate selection.

Q: Can both parts be used interchangeably in the same production batch?

A: From an electrical standpoint, yes. Both parts meet identical functional specifications. However, manufacturing and quality documentation should reflect the specific part number used, as they originate from different manufacturers and have different compliance certifications.