ECK-DNA151MB Equivalent & Substitute Parts

Part Overview

The ECK-DNA151MB is a 150 pF ceramic capacitor rated for 250VAC with Y5P temperature coefficient, manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part is designed for safety-rated applications with X1, Y1 ratings and features a radial, disc package configuration suitable for through-hole mounting.

Substiute Parts

ECK-DNA151MB

Panasonic Electronic ComponentsIn Stock: 1012ECK-DNA151MB Datasheet

Current PartRFQ

DE1B3RB151KA4BR01F

Murata ElectronicsIn Stock: 686DE1B3RB151KA4BR01F Datasheet

SimilarRFQ

DE1B3RB151KJ4BR01F

Murata ElectronicsIn Stock: 1191DE1B3RB151KJ4BR01F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECK-DNA151MB is determined by the following critical parameters:

Capacitance value must remain 150 pF to maintain circuit functionality. Lead spacing of 0.394" (10.00mm) is required for PCB compatibility with through-hole mounting. Safety ratings X1, Y1 must be maintained for applications requiring safety-grade components. Radial, disc package configuration ensures mechanical and electrical compatibility.

The substitute parts identified (DE1B3RB151KA4BR01F and DE1B3RB151KJ4BR01F) satisfy these core requirements. Both Murata Electronics substitutes maintain the 150 pF capacitance, 10.00mm lead spacing, radial disc package, and X1, Y1 safety ratings. The substitutes feature higher voltage ratings (500VAC versus 250VAC) and improved temperature coefficient classification (B versus Y5P), representing enhanced electrical performance characteristics suitable for the original application.

Parameter Comparison

Engineering Selection Recommendations

Both Murata Electronics substitutes (DE1B3RB151KA4BR01F and DE1B3RB151KJ4BR01F) are active products with ROHS3 compliance and REACH unaffected status, providing long-term availability and regulatory alignment. The substitutes offer superior electrical performance with 500VAC voltage rating and improved temperature coefficient classification compared to the obsolete Panasonic ECK-DNA151MB.

Physical dimensions differ between the original and substitutes: the Murata parts feature a smaller diameter (0.315" versus 0.433") and reduced height (0.433" versus 0.591"), which may require PCB layout verification to confirm adequate clearance in existing designs. Lead spacing remains identical at 0.394" (10.00mm), ensuring footprint compatibility for through-hole mounting.

The Murata substitutes maintain capacitance value, tolerance improvement (±10% versus ±20%), safety ratings (X1, Y1), and radial disc package configuration. Selection between DE1B3RB151KA4BR01F and DE1B3RB151KJ4BR01F depends on procurement availability and inventory requirements, as both parts are electrically and mechanically equivalent.

Frequently Asked Questions (FAQ)

Q: Can the Murata DE1B3RB151KA4BR01F and DE1B3RB151KJ4BR01F be used interchangeably with the ECK-DNA151MB?

A: Yes, both Murata parts are direct substitutes. They maintain the same 150 pF capacitance, 10.00mm lead spacing, radial disc package, and X1, Y1 safety ratings. Physical dimensions are smaller, requiring PCB layout verification for clearance compatibility.

Q: What are the key differences between the original and substitute parts?

A: The primary differences are voltage rating (500VAC versus 250VAC), tolerance (±10% versus ±20%), temperature coefficient classification (B versus Y5P), operating temperature range (-40°C ~ 125°C versus -25°C ~ 85°C), and physical size (smaller diameter and height). All differences represent equal or improved electrical performance.

Q: Are the Murata substitutes RoHS compliant?

A: Yes, both Murata parts are ROHS3 compliant, whereas the original Panasonic ECK-DNA151MB is RoHS non-compliant. This provides regulatory advantage for new designs and procurement.

Q: Do the smaller physical dimensions of the Murata parts affect circuit performance?

A: Physical dimensions do not affect electrical performance. However, the reduced size may require PCB layout verification to confirm adequate clearance in existing designs with tight component spacing.

Q: What is the difference between DE1B3RB151KA4BR01F and DE1B3RB151KJ4BR01F?

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