ECQ-E1124KF Equivalent & Substitute Parts

Part Overview

The ECQ-E1124KF is a 0.12 µF film capacitor rated for 100V DC operation with ±10% tolerance, manufactured by Panasonic Electronic Components. This radial through-hole component uses polyester metallized dielectric technology and operates across a temperature range of -40°C to 105°C. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and repair applications.

Substiute Parts

ECQ-E1124KF

Panasonic Electronic ComponentsIn Stock: 827ECQ-E1124KF Datasheet

Current PartRFQ

BFC237121124

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 989BFC237121124 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E1124KF is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.12 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - DC: 100V minimum (equal or higher 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 BFC237121124 from Vishay Beyschlag/Draloric/BC Components meets all substitution criteria. This part maintains identical capacitance, tolerance, DC voltage rating, dielectric composition, mounting configuration, and termination style. Physical dimensions and lead spacing remain within acceptable tolerance for direct board-level replacement.

Parameter Comparison

Engineering Selection Recommendations

The BFC237121124 is a direct functional equivalent for the obsolete ECQ-E1124KF. Both components share identical electrical specifications across capacitance, tolerance, DC voltage rating, and dielectric material. The substitute part is currently in active production status with 955 units available in inventory, ensuring supply continuity for repair and maintenance applications.

The BFC237121124 provides an extended operating temperature range (-55°C to 105°C versus -40°C to 105°C), which represents an operational advantage in low-temperature environments. Physical dimensions are within acceptable tolerance for standard through-hole PCB mounting. The substitute part carries ROHS3 compliance certification, meeting current environmental and regulatory standards.

Lead spacing of 0.300" (7.62mm) on the substitute part is functionally equivalent to the original 0.295" (7.50mm) specification for standard 0.3" pitch PCB layouts. Height and length variations remain within acceptable mechanical tolerances for direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the BFC237121124 be used as a direct replacement for the ECQ-E1124KF?

A: Yes. Both parts maintain identical capacitance (0.12 µF), tolerance (±10%), DC voltage rating (100V), dielectric material (polyester metallized), mounting type (through hole), package style (radial), and termination (PC pins). Physical dimensions are within acceptable tolerance for standard PCB mounting.

Q: What are the key differences between these two parts?

A: The BFC237121124 features an extended operating temperature range (-55°C to 105°C versus -40°C to 105°C) and carries ROHS3 compliance certification. Physical dimensions differ slightly but remain compatible with standard 0.3" pitch through-hole layouts.

Q: Are there any compatibility concerns with PCB mounting?

A: No. Lead spacing of 0.300" (7.62mm) on the substitute part is compatible with standard 0.3" pitch PCB hole patterns. Slight variations in component height (0.354" versus 0.335") do not affect mounting or electrical performance in typical applications.

Q: What is the product availability status?

A: The ECQ-E1124KF is obsolete with limited remaining inventory. The BFC237121124 is in active production with 955 units currently available, providing reliable supply for ongoing requirements.

Q: Does the substitute part meet current regulatory standards?

A: Yes. The BFC237121124 carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.