ECQ-E6154KZ Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECQ-E6154KZ is a 0.15 µF film capacitor rated for 630V DC operation with polyester metallized dielectric construction. Manufactured by Panasonic Electronic Components, this radial through-hole component is designed for general-purpose applications requiring stable capacitance and high voltage tolerance.

The ECQ-E6154KZ carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

ECQ-E6154KZ

Panasonic Electronic ComponentsIn Stock: 856ECQ-E6154KZ Datasheet

Current PartRFQ

ECQ-E6154KF

Panasonic Electronic ComponentsIn Stock: 9203ECQ-E6154KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E6154KZ is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.15 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 630V (minimum requirement; higher ratings acceptable)
• Dielectric Material: Polyester, Metallized (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Termination: PC Pins (exact match required)

The ECQ-E6154KF meets all substitution criteria. While it exhibits differences in physical dimensions, lead spacing, and operating temperature range, these variations remain within acceptable mechanical and thermal tolerances for general-purpose applications. The substitute part maintains identical electrical performance characteristics and dielectric properties.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E6154KF is the qualified substitute for the obsolete ECQ-E6154KZ. Both components share identical electrical specifications: 0.15 µF capacitance, ±10% tolerance, 630V DC rating, and polyester metallized dielectric construction.

The ECQ-E6154KF offers the following advantages:

• Active Product Status: Currently manufactured and stocked, ensuring long-term availability and supply chain reliability.
• Regulatory Compliance: ROHS3 compliant and REACH unaffected, meeting current environmental and safety standards.
• Extended Operating Temperature: Rated to 105°C versus 85°C, providing improved thermal margin in high-temperature environments.
• Compact Form Factor: Reduced physical dimensions and lead spacing enable flexible PCB layout optimization.

PCB layout modifications are required to accommodate the reduced lead spacing (0.591" versus 0.807") and smaller physical footprint. Verify pad spacing and component clearances during design revision.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E6154KF directly replace ECQ-E6154KZ without circuit modification?

A: Electrical substitution is direct. The capacitance, tolerance, voltage rating, and dielectric properties are identical. However, PCB layout modification is necessary due to different lead spacing (0.591" versus 0.807") and physical dimensions.

Q: What is the significance of the different lead spacing?

A: Lead spacing determines the distance between solder pads on the PCB. The ECQ-E6154KF requires closer pad spacing (15.00mm) compared to the ECQ-E6154KZ (20.50mm). Existing PCB designs must be revised to accommodate this difference.

Q: Does the extended operating temperature range of ECQ-E6154KF affect circuit performance?

A: The extended range (-40°C ~ 105°C versus -40°C ~ 85°C) provides additional thermal margin. This does not negatively affect performance; it expands the operating envelope for applications requiring higher temperature tolerance.

Q: Are there compliance differences between the two parts?

A: The ECQ-E6154KF is ROHS3 compliant and REACH unaffected. The ECQ-E6154KZ compliance status is not specified. For new designs or regulated applications, the ECQ-E6154KF is the appropriate selection.

Q: What is the inventory status of these parts?

A: ECQ-E6154KZ is obsolete with 799 units in stock. ECQ-E6154KF is active with 9,152 units in stock, ensuring reliable supply availability.

Q: Can the smaller physical dimensions of ECQ-E6154KF cause mechanical stress issues?

A: The compact form factor does not introduce mechanical stress. Both components use identical PC pin termination and polyester metallized construction. Verify adequate clearance from adjacent components during layout revision.