ECQ-E1273KF Equivalent & Substitute Parts

Part Overview

The ECQ-E1273KF is a 0.027 µF film capacitor manufactured by Panasonic Electronic Components, rated for 100V DC operation with ±10% tolerance. This radial through-hole component uses polyester metallized dielectric technology and operates across a temperature range of -40°C to 105°C. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

ECQ-E1273KF

Panasonic Electronic ComponentsIn Stock: 986ECQ-E1273KF Datasheet

Current PartRFQ

BFC237021273

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 751BFC237021273 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECQ-E1273KF is determined by the following critical parameters:

• Capacitance Value: Must be 0.027 µF
• Tolerance: Must be ±10%
• Voltage Rating - DC: Must be rated for 100V or higher
• Dielectric Type: Must be polyester metallized film
• Mounting Configuration: Must be through-hole radial
• Termination Style: Must use PC pins
• Lead Spacing: Must accommodate 5.00mm (0.197") spacing

The BFC237021273 from Vishay Beyschlag/Draloric/BC Components meets all substitution criteria. This part maintains identical capacitance, tolerance, and voltage rating specifications while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The BFC237021273 is the direct equivalent for ECQ-E1273KF applications. Both parts share identical electrical specifications: 0.027 µF capacitance, ±10% tolerance, and 100V DC rating. The Vishay part offers superior product availability as an active component versus the obsolete Panasonic part.

The BFC237021273 provides enhanced compliance status with ROHS3 certification and AEC-Q200 automotive qualification. The extended lower operating temperature limit (-55°C versus -40°C) provides additional thermal margin. Lead spacing tolerance (5.08mm versus 5.00mm) is within acceptable PCB layout variation for radial through-hole mounting.

Selection of the BFC237021273 is appropriate for new designs and production continuity where the ECQ-E1273KF is no longer available.

Frequently Asked Questions (FAQ)

Q: Can BFC237021273 replace ECQ-E1273KF in existing designs?

A: Yes. Both parts have identical capacitance (0.027 µF), tolerance (±10%), and DC voltage rating (100V). The radial through-hole configuration and PC pin termination are compatible. Lead spacing differs by 0.08mm (5.08mm versus 5.00mm), which is within standard PCB tolerance for radial component mounting.

Q: What is the difference in operating temperature range?

A: The BFC237021273 operates from -55°C to 105°C, while the ECQ-E1273KF operates from -40°C to 105°C. The Vishay part provides 15°C additional margin at the lower temperature limit.

Q: Does the BFC237021273 have compliance advantages?

A: Yes. The BFC237021273 is ROHS3 compliant and carries AEC-Q200 automotive qualification. The ECQ-E1273KF is RoHS non-compliant. For applications requiring regulatory compliance or automotive standards, the Vishay part is the appropriate choice.

Q: Are there physical size differences?

A: Yes. The BFC237021273 has smaller overall dimensions (7.20mm L x 2.50mm W x 6.50mm H) compared to the ECQ-E1273KF (7.80mm L x 4.70mm W x 8.80mm H). The smaller footprint may provide PCB layout advantages in space-constrained applications.

Q: What is the AC voltage rating difference?

A: The ECQ-E1273KF has no specified AC rating. The BFC237021273 is rated for 63V AC. For AC applications, the Vishay part provides defined performance specifications.