MALREKB00JS447EG0K Equivalent & Substitute Parts

Part Overview

The MALREKB00JS447EG0K 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 a 70 mOhm equivalent series resistance at 120 Hz and a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and extended operational life.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution for the MALREKB00JS447EG0K is determined by strict adherence to the following parameters:

Primary Substitution Criteria:

Capacitance: 4700 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V minimum (equal or higher acceptable)
Lifetime: 2000 Hrs @ 105°C minimum
Operating Temperature: -55°C ~ 105°C (minimum range required)
Package: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Case Diameter: 0.630" (16.00 mm) (exact match required)
Height: 1.319" (34.60 mm) maximum
Mounting: Through Hole (exact match required)
RoHS Compliance: ROHS3 Compliant (required)

Substitute parts are categorized as follows:

Direct Equivalent: UKA1E472MHD (Nichicon) — Matches all primary parameters with identical voltage rating of 25 V.

Upgrade Substitute: EEU-HD1V472 (Panasonic) — Exceeds voltage rating at 35 V while maintaining all other critical parameters, providing enhanced voltage margin.

Parametric Equivalents: ECA-1EHG472 and ECA-1EHG472U (Panasonic) — Match all primary parameters with identical 25 V voltage rating and active product status.

Parameter Comparison

Parameter	MALREKB00JS447EG0K (Main)	UKA1E472MHD	EEU-HD1V472	ECA-1EHG472	ECA-1EHG472U
Manufacturer	Vishay Beyschlag/Draloric/BC Components	Nichicon	Panasonic Electronic Components	Panasonic Electronic Components	Panasonic Electronic Components
Series	EKB	UKA	HD	NHG-A	NHG-A
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 ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)	0.630" (16.00 mm)	0.630" (16.00 mm)	0.630" (16.00 mm)	0.630" (16.00 mm)
Height (Seated Max)	1.319" (34.60 mm)	1.299" (33.00 mm)	1.319" (34.60 mm)	1.319" (34.60 mm)	1.319" (34.60 mm)
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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 Direct Replacement (Equivalent Voltage): UKA1E472MHD (Nichicon) provides a direct functional equivalent with matching 25 V voltage rating. However, this part carries a "Not For New Designs" status, limiting its suitability for new production. It remains viable for legacy system maintenance where the original specification must be preserved exactly.

For New Designs and Production: EEU-HD1V472 (Panasonic) is the recommended selection for new applications. This part carries active product status and provides a voltage rating upgrade to 35 V, delivering enhanced design margin while maintaining all other critical parameters. The increased voltage rating does not compromise circuit compatibility in applications rated for 25 V operation.

For Parametric Equivalence with Active Status: ECA-1EHG472 and ECA-1EHG472U (Panasonic) both offer parametric equivalence with active product status. These parts maintain the exact 25 V voltage specification and are suitable for applications requiring strict voltage matching. Both parts are available in high inventory quantities, supporting production continuity.

All substitute parts maintain ROHS3 compliance and the required 2000-hour lifetime rating at 105°C, ensuring regulatory and operational compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can EEU-HD1V472 be used as a direct replacement for MALREKB00JS447EG0K?

A: Yes. EEU-HD1V472 is functionally compatible as a substitute. The 35 V voltage rating exceeds the original 25 V specification, providing additional voltage margin. In circuits designed for 25 V operation, the higher voltage rating does not create compatibility issues and is considered an upgrade substitute.

Q: What is the difference between a direct equivalent and an upgrade substitute?

A: A direct equivalent matches all parameters identically, including voltage rating. An upgrade substitute exceeds one or more parameters—in this case, voltage rating—while maintaining or exceeding all other critical specifications. Upgrade substitutes provide enhanced performance margins.

Q: Are the Panasonic ECA-1EHG472 and ECA-1EHG472U interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, capacitance, voltage rating, tolerance, and physical dimensions. The primary difference is packaging designation. Both are suitable for the same applications.

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

A: This designation indicates the part is in mature or declining production status. While functionally equivalent and available in inventory, it is not recommended for new product development. For new designs, EEU-HD1V472 or the ECA-1EHG series are preferred due to active product status and assured long-term availability.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All substitute parts maintain identical lead spacing of 0.295" (7.50 mm), case diameter of 0.630" (16.00 mm), and through-hole mounting type. UKA1E472MHD has a slightly reduced height of 1.299" (33.00 mm) compared to the original 1.319" (34.60 mm), which does not affect PCB compatibility. All other substitutes match the original height specification exactly.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the regulatory status of the original MALREKB00JS447EG0K.

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