ECK-DNA152ME Equivalent & Substitute Parts

Part Overview

The ECK-DNA152ME is a 1500 pF ceramic capacitor rated for 250VAC with Y5U 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-rated applications with X1, Y1 ratings and features radial, disc-type construction suitable for through-hole mounting.

Key Parameters

Parameter	Value
Capacitance	1500 pF
Tolerance	±20%
Voltage Rating	250VAC
Temperature Coefficient	Y5U (E)
Operating Temperature Range	-25°C ~ 85°C
Safety Ratings	X1, Y1
Mounting Type	Through Hole
Package Type	Radial, Disc
Lead Spacing	0.394" (10.00mm)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the ECK-DNA152ME is based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Capacitance value: 1500 pF (exact match required)
Tolerance: ±20% (exact match required)
Safety ratings: X1, Y1 (exact match required)
Lead spacing: 0.394" (10.00mm) (exact match required)
Mounting type: Through Hole (exact match required)
Package type: Radial, Disc (exact match required)

Allowable Variations:

Voltage rating: Substitute parts may exceed the original 250VAC rating, as higher voltage-rated capacitors are backward compatible in lower-voltage applications
Temperature coefficient: E (substitute) is compatible with Y5U (E) original specification
Operating temperature range: Substitute parts with extended ranges (-40°C ~ 125°C) are acceptable
Product status: Active substitutes are preferred over obsolete originals
RoHS compliance: ROHS3 compliant substitutes are preferred

The two identified substitutes (DE1E3RB152MA4BR01F and DE1E3RB152MJ4BR01F) from Murata Electronics meet all critical matching parameters while offering improved voltage ratings and compliance certifications.

Parameter Comparison

Parameter	ECK-DNA152ME (Original)	DE1E3RB152MA4BR01F (Substitute)	DE1E3RB152MJ4BR01F (Substitute)
Manufacturer	Panasonic Electronic Components	Murata Electronics	Murata Electronics
Capacitance	1500 pF	1500 pF	1500 pF
Tolerance	±20%	±20%	±20%
Voltage Rating	250VAC	500VAC	500VAC
Temperature Coefficient	Y5U (E)	E	E
Operating Temperature	-25°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C
Safety Ratings	X1, Y1	X1, Y1	X1, Y1
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Disc	Radial, Disc	Radial, Disc
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Size / Dimension	0.433" Dia (11.00mm)	0.354" Dia (9.00mm)	0.354" Dia (9.00mm)
Height - Seated (Max)	0.551" (14.00mm)	0.472" (12.00mm)	0.472" (12.00mm)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Both Murata Electronics substitutes (DE1E3RB152MA4BR01F and DE1E3RB152MJ4BR01F) are functionally equivalent to the ECK-DNA152ME for applications requiring 1500 pF, ±20%, X1/Y1 safety-rated ceramic capacitors with 10.00mm lead spacing.

Selection Basis:

The substitutes are recommended based on:

Active product status (versus obsolete original)
ROHS3 compliance certification (versus non-compliant original)
Identical electrical specifications for capacitance, tolerance, and safety ratings
Identical mechanical compatibility (lead spacing, through-hole mounting, radial disc package)
Higher voltage rating (500VAC) provides additional design margin in 250VAC applications
Extended operating temperature range (-40°C ~ 125°C) supports broader environmental conditions

Both substitute part numbers are interchangeable from an electrical and mechanical standpoint. Selection between DE1E3RB152MA4BR01F and DE1E3RB152MJ4BR01F may be based on inventory availability or packaging preferences, as both are supplied in bulk packaging with equivalent specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a 500VAC-rated capacitor in place of a 250VAC-rated capacitor?

A: Yes. A capacitor with a higher voltage rating is suitable for applications designed for lower voltages. The 500VAC substitutes are backward compatible with the 250VAC original specification.

Q: Are the physical dimensions compatible with the original PCB layout?

A: The lead spacing (0.394" / 10.00mm) is identical, ensuring PCB footprint compatibility. However, the substitute parts have smaller body dimensions (0.354" Dia vs. 0.433" Dia) and reduced height (0.472" vs. 0.551"), which may provide additional clearance in confined spaces.

Q: What is the difference between DE1E3RB152MA4BR01F and DE1E3RB152MJ4BR01F?

A: Both parts are electrically and mechanically identical. The difference lies in packaging designation or internal manufacturing variants. Both are active products with ROHS3 compliance and equivalent performance characteristics.

Q: Does the temperature coefficient change affect circuit performance?

A: The original part uses Y5U (E) temperature coefficient, while substitutes use E. Both specifications are compatible for the stated operating temperature range (-25°C ~ 85°C for original, -40°C ~ 125°C for substitutes). The substitute's extended range provides additional operational margin.

Q: Are these parts suitable for safety-critical applications?

A: Yes. Both the original and substitute parts carry X1, Y1 safety ratings, confirming suitability for safety-critical applications as specified in the original design.

Q: What is the inventory status of these substitutes?

A: DE1E3RB152MA4BR01F: 753 Pcs in stock. DE1E3RB152MJ4BR01F: 1174 Pcs in stock. Both are available as new original components.

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