ECK-DNA471MB Equivalent & Substitute Parts

Part Overview

The ECK-DNA471MB is a 470 pF ceramic capacitor rated for 250VAC with Y5P temperature coefficient, manufactured by Panasonic Electronic Components. This radial, disc-type capacitor is designed for safety applications with X1, Y1 ratings. The part is currently obsolete, making equivalent substitutes necessary for ongoing design requirements and component sourcing.

Substiute Parts

ECK-DNA471MB

Panasonic Electronic ComponentsIn Stock: 723ECK-DNA471MB Datasheet

Current PartRFQ

DE1B3RB471KA4BR01F

Murata ElectronicsIn Stock: 1754DE1B3RB471KA4BR01F Datasheet

SimilarRFQ

DE1B3RB471KJ4BR01F

Murata ElectronicsIn Stock: 842DE1B3RB471KJ4BR01F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECK-DNA471MB is determined by the following critical parameters:

• Capacitance Value: 470 pF (exact match required)
• Lead Spacing: 0.394" (10.00mm) (mechanical compatibility)
• Mounting Type: Through Hole Radial configuration
• Safety Ratings: X1, Y1 (application requirement)
• Voltage Rating: Minimum 250VAC (equal or higher acceptable)
• Temperature Coefficient: B-type or equivalent (functional compatibility)

The substitute parts DE1B3RB471KA4BR01F and DE1B3RB471KJ4BR01F from Murata Electronics meet these substitution criteria. Both parts maintain the same capacitance value, lead spacing, mounting configuration, and safety ratings. The substitutes feature higher voltage ratings (500VAC) and improved temperature coefficient specifications, making them suitable replacements for the obsolete Panasonic component.

Parameter Comparison

Engineering Selection Recommendations

Both Murata substitute parts are active products with ROHS3 compliance, providing advantages over the obsolete Panasonic ECK-DNA471MB. The substitutes offer improved tolerance specifications (±10% versus ±20%), extended operating temperature range (-40°C ~ 125°C versus -25°C ~ 85°C), and higher voltage ratings (500VAC versus 250VAC). These enhancements provide greater design margin and regulatory compliance for new applications.

DE1B3RB471KA4BR01F and DE1B3RB471KJ4BR01F are functionally equivalent for the ECK-DNA471MB application. Selection between the two Murata options should be based on packaging availability and inventory requirements, as both parts share identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can the Murata DE1B3RB471KA4BR01F or DE1B3RB471KJ4BR01F directly replace the Panasonic ECK-DNA471MB?

A: Yes. Both Murata parts maintain the same capacitance value (470 pF), lead spacing (10.00mm), mounting configuration (Through Hole Radial), and safety ratings (X1, Y1). The higher voltage rating and improved tolerance are compatible with applications designed for the original part.

Q: What is the difference between DE1B3RB471KA4BR01F and DE1B3RB471KJ4BR01F?

A: Both parts are electrically and mechanically identical. The difference lies in packaging and distribution channels. Selection should be based on availability and procurement requirements.

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

A: Yes. Both substitute parts maintain X1, Y1 safety ratings required for the original ECK-DNA471MB application.

Q: What are the physical dimension differences?

A: The Murata substitutes have a smaller diameter (0.315" versus 0.433") and reduced height (0.433" versus 0.551"), while maintaining the same 10.00mm lead spacing. PCB layout compatibility should be verified for the smaller package footprint.

Q: Do the substitutes meet current regulatory requirements?

A: Yes. Both Murata parts are ROHS3 compliant, addressing modern regulatory standards that the obsolete Panasonic part does not meet.