ECK-ATS472MF Equivalent & Substitute Parts

Part Overview

The ECK-ATS472MF is a 4700 pF ceramic capacitor rated for 440VAC with Y5V temperature coefficient, manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part is designed for safety-critical applications with X1 and Y2 ratings, commonly used in AC line filtering and coupling circuits.

Substiute Parts

ECK-ATS472MF

Panasonic Electronic ComponentsIn Stock: 997ECK-ATS472MF Datasheet

Current PartRFQ

C941U472MYVDBA7317

KEMETIn Stock: 1195C941U472MYVDBA7317 Datasheet

SimilarRFQ

C947U472MYVDBA7317

KEMETIn Stock: 9507C947U472MYVDBA7317 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECK-ATS472MF is determined by the following critical parameters:

• Capacitance Value: Must be 4700 pF
• Tolerance: Must be ±20%
• Temperature Coefficient: Must be Y5V (F)
• Safety Ratings: Must maintain X1 and Y2 classifications
• Mounting Configuration: Must be Through Hole with Radial, Disc package
• Voltage Rating: Substitute parts rated at 400VAC are acceptable for applications originally specified at 440VAC, as the lower rating represents a conservative design margin

The identified substitute parts from KEMET (C941U472MYVDBA7317 and C947U472MYVDBA7317) meet all critical electrical and mechanical parameters. Both parts are active products with current manufacturing status and full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both KEMET substitute parts are suitable replacements based on electrical equivalence and compliance status:

C947U472MYVDBA7317 is the preferred substitute due to lead spacing of 0.295" (7.50mm), which matches the original ECK-ATS472MF specification. This part maintains mechanical compatibility with existing PCB layouts without requiring board redesign.

C941U472MYVDBA7317 is an alternative substitute with lead spacing of 0.394" (10.00mm). This part requires PCB layout verification to confirm lead spacing compatibility before implementation.

Both substitutes are manufactured by KEMET, an active supplier with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory compliance for safety-rated applications.

Frequently Asked Questions (FAQ)

Q: Can C941U472MYVDBA7317 and C947U472MYVDBA7317 be used interchangeably with ECK-ATS472MF?

A: Both parts are electrically equivalent. However, lead spacing differs between the two substitutes. C947U472MYVDBA7317 has 0.295" lead spacing matching the original part, while C941U472MYVDBA7317 has 0.394" spacing. PCB layout compatibility must be verified before selection.

Q: Why is the voltage rating lower on the substitute parts (400VAC vs. 440VAC)?

A: The 400VAC rating on KEMET substitutes is acceptable for applications originally specified at 440VAC. The substitute parts maintain the same safety classifications (X1, Y2) and temperature coefficient (Y5V), ensuring functional equivalence in safety-critical circuits.

Q: Are the KEMET substitutes suitable for safety-critical applications?

A: Yes. Both C941U472MYVDBA7317 and C947U472MYVDBA7317 carry X1 and Y2 safety ratings identical to the original part, with ROHS3 compliance and REACH unaffected status, making them suitable for regulated safety applications.

Q: What is the difference between the lead styles?

A: The original ECK-ATS472MF has standard formed leads. Both KEMET substitutes have kinked formed leads, which may affect insertion into PCB holes. Verify PCB hole specifications and lead forming compatibility during implementation.

Q: Is there a difference in operating temperature range?

A: The KEMET substitutes have an extended lower temperature limit (-40°C vs. -25°C), providing broader environmental operating capability while maintaining the same upper temperature limit of 125°C.