ECK-A3F331KBP Equivalent & Substitute Parts

Part Overview

The ECK-A3F331KBP is a 330 pF ceramic capacitor rated for 3000V (3kV) with Y5P temperature coefficient, manufactured by Panasonic Electronic Components. This radial, disc-type capacitor is designed for general-purpose high-voltage applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Substiute Parts

ECK-A3F331KBP

Panasonic Electronic ComponentsIn Stock: 1029ECK-A3F331KBP Datasheet

Current PartRFQ

S331K33Y5PR63K7R

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 21059S331K33Y5PR63K7R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECK-A3F331KBP is determined by strict equivalence across the following critical parameters:

• Capacitance value: 330 pF
• Tolerance: ±10%
• Voltage rating: 3000V (3kV) minimum
• Temperature coefficient: Y5P (B)
• Mounting type: Through Hole
• Package configuration: Radial, Disc

The S331K33Y5PR63K7R from Vishay Beyschlag/Draloric/BC Components meets all substitution criteria. Physical dimensions may vary within acceptable tolerances for through-hole mounting applications, provided lead spacing and mounting footprint compatibility are verified for the specific PCB design.

Parameter Comparison

Engineering Selection Recommendations

The S331K33Y5PR63K7R is a direct functional equivalent for the obsolete ECK-A3F331KBP. Both parts share identical electrical specifications: 330 pF capacitance, ±10% tolerance, 3000V rating, and Y5P temperature coefficient.

The Vishay part offers the advantage of active product status with current manufacturing support and ROHS3 compliance. Physical dimensions differ slightly; the Vishay part is marginally larger in diameter (8.50mm vs. 8.00mm) and height (12.50mm vs. 12.00mm), but lead spacing remains identical at 0.295" (7.50mm). PCB layout verification is required to confirm clearance compatibility for the specific application.

The extended lower operating temperature range of the Vishay part (-30°C vs. -25°C) provides additional margin in cold-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the S331K33Y5PR63K7R be used as a direct replacement for the ECK-A3F331KBP?

A: Yes, the S331K33Y5PR63K7R is electrically equivalent. Both parts have identical capacitance (330 pF), tolerance (±10%), voltage rating (3000V), and temperature coefficient (Y5P). Lead spacing is identical at 0.295" (7.50mm). Physical dimensions differ slightly; verify PCB clearance for the larger body size (8.50mm diameter, 12.50mm height).

Q: What are the key parameters that determine substitution compatibility?

A: Substitution is based on: capacitance value (330 pF), tolerance (±10%), voltage rating (3000V minimum), temperature coefficient (Y5P), mounting type (Through Hole), and package configuration (Radial, Disc). All these parameters must match or exceed the original specification.

Q: Does the Vishay part have better compliance certifications?

A: The S331K33Y5PR63K7R is ROHS3 compliant and REACH unaffected. The original Panasonic part specifications do not include these compliance details. If regulatory compliance is required for your application, the Vishay part provides documented certification.

Q: Are there any mechanical considerations when substituting?

A: Yes. The Vishay part has a kinked lead style compared to the standard formed leads of the Panasonic part. Additionally, the Vishay part is slightly larger (8.50mm diameter vs. 8.00mm, and 12.50mm height vs. 12.00mm). Verify PCB layout and component spacing to ensure no interference with adjacent components or board features.

Q: What is the operating temperature difference between these parts?

A: The Panasonic part operates from -25°C to 125°C, while the Vishay part operates from -30°C to 125°C. The Vishay part provides 5°C additional margin at the lower temperature limit, which may be beneficial in cold-environment applications.