MALREKB05DC210N00K Equivalent & Substitute Parts

Part Overview

The MALREKB05DC210N00K is a 10 µF, 250 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 design support and procurement. The part is rated for general-purpose applications with a 2000-hour lifetime at 105°C and an operating temperature range of -40°C to 105°C.

Key Parameters

Parameter	Value
Capacitance	10 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Maximum Height	0.571" (14.50 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C to 105°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MALREKB05DC210N00K are categorized based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 10 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 250 V minimum (equal or higher voltage acceptable)
Package: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Case Diameter: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C to 105°C minimum (equal or wider range acceptable)
Polarization: Polar (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)

Upgrade Substitutes meet or exceed the original specifications while maintaining full mechanical and electrical compatibility. These parts offer improved performance characteristics such as extended lifetime ratings or higher voltage ratings.

Parametric Equivalents match the original specifications exactly and serve as direct functional replacements from alternative manufacturers.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Case Diameter	Max Height	Product Status	RoHS Status
MALREKB05DC210N00K	Vishay Beyschlag/Draloric/BC Components	EKB	10 µF	250 V	±20%	2000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Obsolete	ROHS3 Compliant
250LEX10MEFC10X12.5	Rubycon	LEX	10 µF	250 V	±20%	5000 Hrs @ 125°C	-40°C to 125°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Active	ROHS3 Compliant
250LLE10MEFC10X12.5	Rubycon	LLE	10 µF	250 V	±20%	15000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Active	ROHS3 Compliant
400AX10MEFC10X12.5	Rubycon	AX	10 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Active	ROHS3 Compliant
EKMQ351ELL100MJC5S	Chemi-Con	KMQ	10 µF	350 V	±20%	2000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
EKXF251ELL100MJC5S	Chemi-Con	KXF	10 µF	250 V	±20%	15000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
UVC2G100MPD	Nichicon	UVC	10 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Active	ROHS3 Compliant
250PX10MEFC10X12.5	Rubycon	PX	10 µF	250 V	±20%	2000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.571" (14.50 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent): The 250PX10MEFC10X12.5 from Rubycon provides an exact parametric match to the MALREKB05DC210N00K. Both parts share identical electrical specifications (10 µF, 250 V, ±20%), mechanical dimensions, and operating temperature range. This part is recommended for applications requiring no performance enhancement and is currently in active production status with full ROHS3 compliance.

Enhanced Performance Substitutes: The 250LEX10MEFC10X12.5 and 250LLE10MEFC10X12.5 from Rubycon maintain the original 250 V voltage rating and mechanical compatibility while offering extended lifetime ratings (5000 hours and 15000 hours respectively at elevated temperatures). The 250LLE10MEFC10X12.5 is particularly suitable for applications requiring maximum reliability over the original 2000-hour specification.

The EKXF251ELL100MJC5S from Chemi-Con provides a 250 V equivalent with a 15000-hour lifetime rating at 105°C, matching the operating temperature range of the original part. This part has a maximum height of 0.551" (14.00 mm), which is 0.020" shorter than the original, allowing for improved board layout flexibility in space-constrained designs.

Higher Voltage Alternatives: The 400AX10MEFC10X12.5 from Rubycon and UVC2G100MPD from Nichicon both provide 400 V ratings with identical mechanical dimensions to the original part. These are suitable for applications where circuit voltage margins require higher-rated components. The UVC2G100MPD offers the highest inventory availability among all substitutes.

The EKMQ351ELL100MJC5S from Chemi-Con provides a 350 V intermediate voltage option with a slightly reduced maximum height of 0.551" (14.00 mm).

All substitute parts maintain ROHS3 compliance and through-hole mounting compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. Higher voltage ratings (350 V or 400 V) are acceptable substitutes for the 250 V original part, provided all other parameters—capacitance, tolerance, package type, lead spacing, case diameter, and mounting type—remain identical. Higher voltage ratings provide additional safety margin in the circuit.

Q: What is the difference between the Rubycon LEX and LLE series substitutes? A: Both maintain the 250 V rating and mechanical compatibility. The LEX series (250LEX10MEFC10X12.5) offers 5000 hours lifetime at 125°C, while the LLE series (250LLE10MEFC10X12.5) offers 15000 hours lifetime at 105°C. Selection depends on whether your application prioritizes higher temperature operation or extended lifetime at standard operating temperatures.

Q: Are there any height differences I should be aware of? A: The original MALREKB05DC210N00K has a maximum seated height of 0.571" (14.50 mm). The EKMQ351ELL100MJC5S and EKXF251ELL100MJC5S from Chemi-Con have a maximum height of 0.551" (14.00 mm), which is 0.020" shorter. All other substitutes maintain the original 0.571" height. Verify PCB layout clearances if height is a constraint.

Q: Do all substitutes have the same lead spacing? A: Yes. All substitute parts listed maintain the original 0.197" (5.00 mm) lead spacing and 0.394" (10.00 mm) case diameter, ensuring direct mechanical compatibility with existing through-hole PCB designs.

Q: Which substitute offers the best long-term reliability? A: The 250LLE10MEFC10X12.5 from Rubycon and EKXF251ELL100MJC5S from Chemi-Con both provide 15000-hour lifetime ratings at 105°C, compared to the original 2000-hour specification. Both are suitable for applications requiring extended operational life.

Q: Are all substitutes RoHS compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original MALREKB05DC210N00K.

Q: What is the inventory status of these substitutes? A: All substitute parts are currently in active production status with available inventory. The UVC2G100MPD from Nichicon has the highest inventory level at 26,161 pieces, while the EKMQ351ELL100MJC5S from Chemi-Con has the lowest at 857 pieces.

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