MALREKB05JS247X00K Equivalent & Substitute Parts

Part Overview

The MALREKB05JS247X00K is a 47 µF, 400 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, with 1,068 units currently in stock. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production planning, and long-term component availability assurance.

Key Parameters

Parameter	Value
Capacitance	47 µF
Voltage Rating	400 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Case Diameter	0.630" (16.00 mm)
Mounting Type	Through Hole
Polarization	Polar
Operating Temperature Range	-25°C to 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MALREKB05JS247X00K is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 47 µF (exact match required)
Voltage Rating: 400 V or higher (equal or greater voltage rating acceptable)
Tolerance: ±20% (as specified)
Package: Radial, Can configuration
Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.630" (16.00 mm)
Mounting: Through Hole
Polarization: Polar

Secondary Considerations:

Lifetime at temperature rating
ESR (Equivalent Series Resistance) where specified
Ripple current capabilities
Operating temperature range
Product status (active preferred over obsolete)
Compliance certifications (RoHS3, REACH)

Substitute parts are grouped into two categories: direct equivalents at 400 V rating, and upgraded alternatives at 450 V rating. The 450 V variants provide higher voltage margin while maintaining identical physical footprint and lead spacing, making them suitable for applications where voltage headroom is beneficial.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp Range	Product Status	Lead Spacing	Case Diameter	Height (Max)
MALREKB05JS247X00K	Vishay Beyschlag	47 µF	400 V	±20%	2000 Hrs	-25°C to 105°C	Obsolete	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
MAL214264796E3	Vishay Beyschlag	47 µF	400 V	±20%	2500 Hrs	-40°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)
EKMG401ELL470MLN3S	Chemi-Con	47 µF	400 V	±20%	2000 Hrs	-40°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)
400CFX47MEFC16X31.5	Rubycon	47 µF	400 V	±20%	5000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
450PX47MEFC16X31.5	Rubycon	47 µF	450 V	±20%	2000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
B43851F5476M000	EPCOS - TDK Electronics	47 µF	450 V	±20%	3000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
B43858C9476M	EPCOS - TDK Electronics	47 µF	400 V	±20%	5000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
B43890A9476M000	EPCOS - TDK Electronics	47 µF	400 V	±20%	15000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
EEU-EE2W470	Panasonic Electronic Components	47 µF	450 V	±20%	10000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
EGXE401ELL470MLN3S	Chemi-Con	47 µF	400 V	±20%	2000 Hrs @ 125°C	-25°C to 125°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)
EKMQ451ELL470MLN3S	Chemi-Con	47 µF	450 V	±20%	2000 Hrs	-25°C to 105°C	Active	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)

Engineering Selection Recommendations

Direct 400 V Equivalents (Recommended Primary Substitutes):

MAL214264796E3 (Vishay Beyschlag, 142 RHS series) provides the closest functional replacement with active product status, extended lifetime (2500 hours at 105°C versus 2000 hours), and expanded operating temperature range (-40°C to 105°C). Physical dimensions are compatible with identical lead spacing and case diameter, with marginally reduced height (1.299" versus 1.319").

EKMG401ELL470MLN3S (Chemi-Con, KMG series) offers active status with matching 2000-hour lifetime at 105°C and extended temperature range (-40°C to 105°C). This part maintains identical electrical specifications and physical footprint.

B43858C9476M (EPCOS - TDK Electronics, B43858 series) provides superior reliability with 5000-hour lifetime at 105°C while maintaining 400 V rating and identical physical dimensions. Active product status ensures long-term availability.

B43890A9476M000 (EPCOS - TDK Electronics, B43890 series) represents the highest reliability option with 15000-hour lifetime at 105°C, active status, and full physical compatibility. This part is suitable for applications requiring extended service life.

Higher Voltage Alternatives (450 V Rating):

450 V rated substitutes are electrically compatible with 400 V applications and provide increased voltage margin. These parts maintain identical capacitance, tolerance, physical footprint, and lead spacing:

EEU-EE2W470 (Panasonic Electronic Components, EE-A series) offers the longest lifetime (10000 hours at 105°C) among 450 V options with active status and full physical compatibility.

B43851F5476M000 (EPCOS - TDK Electronics, B43851 series) provides 450 V rating with 3000-hour lifetime at 105°C and active status.

EKMQ451ELL470MLN3S (Chemi-Con, KMQ series) delivers 450 V rating with 2000-hour lifetime at 105°C and active status.

Specialized Application Option:

EGXE401ELL470MLN3S (Chemi-Con, GXE series) is rated for automotive applications (AEC-Q200) with extended operating temperature range (-25°C to 125°C) and 2000-hour lifetime at 125°C. This part is suitable for automotive or high-temperature environments.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original component's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a 450 V rated capacitor in place of the 400 V MALREKB05JS247X00K?

A: Yes. A 450 V rated capacitor is electrically compatible with a 400 V application. The higher voltage rating provides additional safety margin. All physical parameters (lead spacing, case diameter, mounting type) remain identical, ensuring direct mechanical compatibility.

Q: What is the difference between the various substitute options?

A: Substitute parts differ primarily in lifetime rating at 105°C, operating temperature range, and manufacturer. Direct 400 V equivalents (MAL214264796E3, EKMG401ELL470MLN3S, B43858C9476M, B43890A9476M000) maintain the original voltage rating. Higher-rated options (450 V variants) provide voltage margin. Lifetime ratings range from 2000 hours to 15000 hours at 105°C. All maintain identical capacitance (47 µF), tolerance (±20%), and physical footprint.

Q: Are all substitute parts physically interchangeable?

A: Yes, all listed substitutes maintain the required lead spacing (0.295" / 7.50 mm), case diameter (0.630" / 16.00 mm), and through-hole mounting configuration. Height variations are minimal (1.299" to 1.319") and do not affect PCB layout compatibility. Verify specific board clearance requirements for your application.

Q: Which substitute should I choose for maximum reliability?

A: B43890A9476M000 offers the longest lifetime rating (15000 hours at 105°C) with active product status. EEU-EE2W470 provides the longest lifetime among 450 V options (10000 hours at 105°C). For automotive applications, EGXE401ELL470MLN3S includes AEC-Q200 qualification and extended temperature range (-25°C to 125°C).

Q: What does "active" product status mean?

A: Active status indicates the manufacturer currently produces and supports the component. The original MALREKB05JS247X00K is obsolete, meaning Vishay Beyschlag no longer manufactures it. All listed substitutes carry active status, ensuring continued availability and manufacturer support.

Q: Are there any compliance or certification differences between substitutes?

A: All substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original component. EGXE401ELL470MLN3S additionally carries AEC-Q200 automotive qualification, suitable for automotive applications. ESR specifications are provided only for the original part (5.64 Ohm @ 120 Hz) and B43851F5476M000 (4.8 Ohm @ 120 Hz); other substitutes do not specify ESR in available data.

Q: Can I mix different substitute parts in the same design?

A: Yes, all listed substitutes are electrically and mechanically compatible. However, for consistency in production and testing, using a single substitute part number across identical circuit positions is recommended. If mixing is necessary, verify that the application does not depend on specific ESR or ripple current characteristics that vary between manufacturers.

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