MALREKB05JS447E00K Equivalent & Substitute Parts

Part Overview

The MALREKB05JS447E00K is a 4700 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Vishay Beyschlag/Draloric/BC Components from the EKB series. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part features 70 mOhm ESR at 120 Hz, 2000 hours lifetime at 105°C, and is rated for general purpose applications with through-hole radial mounting.

Key Parameters

Parameter	Value
Capacitance	4700 µF
Voltage Rating	25 V
Tolerance	±20%
ESR @ 120 Hz	70 mOhm
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C to 105°C
Ripple Current @ 120 Hz	1.916 A
Lead Spacing	0.295" (7.50 mm)
Diameter	0.630" (16.00 mm)
Height (Seated Max)	1.319" (34.60 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MALREKB05JS447E00K is determined by the following critical parameters: capacitance value (4700 µF), voltage rating (minimum 25 V), tolerance (±20%), physical dimensions (lead spacing 7.50 mm, diameter 16.00 mm, height 34.60 mm), mounting type (through hole radial), and lifetime rating (2000 hours at 105°C). All substitute parts maintain these core specifications to ensure functional and mechanical compatibility.

The substitute parts are categorized as follows:

Direct Equivalent: UKA1E472MHD (Nichicon) and ECA-1EHG472, ECA-1EHG472U (Panasonic) match the 25 V rating and all physical dimensions.

Upgrade Equivalent: EEU-HD1V472 (Panasonic) provides the same capacitance and physical footprint but with a higher 35 V voltage rating, offering improved voltage margin in the same package.

Parameter Comparison

Parameter	MALREKB05JS447E00K	UKA1E472MHD	EEU-HD1V472	ECA-1EHG472	ECA-1EHG472U
Manufacturer	Vishay Beyschlag	Nichicon	Panasonic	Panasonic	Panasonic
Capacitance	4700 µF	4700 µF	4700 µF	4700 µF	4700 µF
Voltage Rating	25 V	25 V	35 V	25 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Lead Spacing	7.50 mm	7.50 mm	7.50 mm	7.50 mm	7.50 mm
Diameter	16.00 mm	16.00 mm	16.00 mm	16.00 mm	16.00 mm
Height (Seated Max)	34.60 mm	33.00 mm	34.60 mm	34.60 mm	34.60 mm
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Product Status	Obsolete	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For new designs, EEU-HD1V472 (Panasonic HD series) is the preferred selection due to its active product status and higher 35 V voltage rating, which provides additional design margin while maintaining identical physical dimensions and capacitance specifications. This part is ROHS3 compliant and offers the longest supply chain availability.

ECA-1EHG472 and ECA-1EHG472U (Panasonic NHG-A series) are parametric equivalents with active product status, matching the original 25 V rating and all physical dimensions. Both are ROHS3 compliant and suitable for direct replacement in existing designs.

UKA1E472MHD (Nichicon UKA series) provides direct parametric equivalence but carries a "Not For New Designs" status, making it suitable only for legacy system maintenance and repair applications where the original specification must be preserved.

Frequently Asked Questions (FAQ)

Q: Can EEU-HD1V472 be used as a direct replacement for MALREKB05JS447E00K?

A: Yes. EEU-HD1V472 maintains identical capacitance (4700 µF), tolerance (±20%), physical dimensions (16.00 mm diameter, 34.60 mm height, 7.50 mm lead spacing), operating temperature range (-55°C to 105°C), and lifetime rating (2000 hours at 105°C). The 35 V rating is a higher specification that is compatible with 25 V circuit requirements.

Q: What is the difference between ECA-1EHG472 and ECA-1EHG472U?

A: Both parts are parametrically identical with 4700 µF capacitance, 25 V rating, ±20% tolerance, and matching physical dimensions. The primary difference is packaging designation, with ECA-1EHG472U carrying a specific packaging code. Both are active products suitable for new designs.

Q: Why is UKA1E472MHD marked "Not For New Designs"?

A: This designation indicates the part is in mature or declining production status. While it remains available and functionally equivalent, Nichicon recommends using alternative sources for new product development. It remains suitable for maintenance and repair of existing equipment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MALREKB05JS447E00K and all listed substitute parts (UKA1E472MHD, EEU-HD1V472, ECA-1EHG472, ECA-1EHG472U) are ROHS3 compliant.

Q: Will the height difference between UKA1E472MHD (33.00 mm) and the original part (34.60 mm) affect PCB layout?

A: The 0.50 mm height difference is within typical PCB clearance tolerances for through-hole radial capacitors. Verify clearance in your specific application, particularly if space constraints exist above the component.

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