MALREKB05JS310N00K Equivalent & Substitute Parts

Part Overview

The MALREKB05JS310N00K is a 100 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 production continuity. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	100 µF
Tolerance	±20%
Voltage - Rated	250 V
ESR @ 120Hz	1.99 Ohm
Lifetime @ 105°C	2000 Hrs
Operating Temperature	-40°C ~ 105°C
Ripple Current @ 120 Hz	402 mA
Lead Spacing	0.295" (7.50mm)
Size / Dimension	0.630" Dia (16.00mm)
Height - Seated (Max)	1.319" (34.60mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MALREKB05JS310N00K is determined by strict equivalence across the following critical parameters:

Capacitance: 100 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 250 V minimum (equal or higher acceptable)
Operating Temperature Range: -40°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50mm) (exact match required)
Size / Dimension: 0.630" Dia (16.00mm) (exact match required)
Height - Seated (Max): 1.319" (34.60mm) or 1.299" (33.00mm) acceptable

Substitute parts are classified into two categories:

Direct Equivalents (Same Voltage Rating - 250V): Parts meeting all critical parameters with 250 V rated voltage, ensuring drop-in compatibility without circuit redesign.

Upgrade Substitutes (Higher Voltage Rating or Enhanced Lifetime): Parts exceeding the original specifications in voltage rating or operational lifetime while maintaining all mechanical and electrical compatibility parameters.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	ESR @ 120Hz	Ripple Current @ 120Hz	Product Status
MALREKB05JS310N00K	Vishay Beyschlag/Draloric/BC Components	EKB	100 µF	250 V	±20%	2000 Hrs	1.99 Ohm	402 mA	Obsolete
MAL214261013E3	Vishay Beyschlag/Draloric/BC Components	142 RHS	100 µF	250 V	±20%	2500 Hrs	—	530 mA	Active
B43851K2107M000	EPCOS - TDK Electronics	B43851	100 µF	250 V	±20%	3000 Hrs	1.8 Ohm	364 mA	Active
EKMG251ELL101MLN3S	Chemi-Con	KMG	100 µF	250 V	±20%	2000 Hrs	—	365 mA	Active
420QXW100MEFR16X31.5	Rubycon	QXW	100 µF	420 V	±20%	2000 Hrs	—	690 mA	Active
B43858F2107M000	EPCOS - TDK Electronics	B43858	100 µF	250 V	±20%	5000 Hrs	—	—	Active
EKXJ351ELL101MLN3S	Chemi-Con	KXJ	100 µF	350 V	±20%	12000 Hrs	—	740 mA	Active
UCY2V101MHD	Nichicon	UCY	100 µF	350 V	±20%	12000 Hrs	—	825 mA	Active

Engineering Selection Recommendations

Direct Equivalents (250V Rating):

MAL214261013E3, B43851K2107M000, and EKMG251ELL101MLN3S are direct substitutes for the MALREKB05JS310N00K. All three maintain the 250 V voltage rating and are ROHS3 compliant. MAL214261013E3 and B43851K2107M000 are from active product lines with extended lifetimes (2500 and 3000 hours respectively at 105°C), providing improved reliability over the obsolete original part. EKMG251ELL101MLN3S matches the original 2000-hour lifetime specification.

Upgrade Substitutes (Enhanced Specifications):

B43858F2107M000 offers a 5000-hour lifetime at 105°C while maintaining 250 V rating and all mechanical compatibility parameters, suitable for applications requiring extended operational life without circuit modification.

420QXW100MEFR16X31.5 provides a 420 V rating upgrade, applicable in circuits where higher voltage margin is beneficial. This part is suitable only if the circuit design permits higher voltage operation.

EKXJ351ELL101MLN3S and UCY2V101MHD both offer 350 V ratings with 12000-hour lifetimes at 105°C, representing significant reliability improvements. EKXJ351ELL101MLN3S carries AEC-Q200 automotive qualification. Both parts are mechanically compatible with the original design footprint.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can MAL214261013E3 be used as a direct replacement for MALREKB05JS310N00K?

A: Yes. MAL214261013E3 matches all critical parameters: 100 µF capacitance, ±20% tolerance, 250 V rating, -40°C to 105°C operating range, through-hole radial can package, and identical lead spacing and dimensions. It is an active product with improved 2500-hour lifetime specification.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents maintain the original 250 V voltage rating and are suitable for drop-in replacement without circuit redesign. Upgrade substitutes either exceed the voltage rating (420QXW100MEFR16X31.5 at 420 V) or provide enhanced lifetime specifications (B43858F2107M000 at 5000 hours, EKXJ351ELL101MLN3S and UCY2V101MHD at 12000 hours). Upgrade substitutes are compatible with the original footprint but offer improved performance margins.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the regulatory status of the original MALREKB05JS310N00K.

Q: Can I use EKXJ351ELL101MLN3S or UCY2V101MHD in place of the original part?

A: Yes. Both parts are mechanically and electrically compatible with the original footprint and mounting requirements. They provide higher voltage ratings (350 V) and significantly extended lifetimes (12000 hours at 105°C), making them suitable upgrades for applications requiring improved reliability.

Q: What is the height difference between substitute parts?

A: Most substitute parts maintain the original 1.319" (34.60mm) maximum seated height. EKMG251ELL101MLN3S and EKXJ351ELL101MLN3S have a slightly reduced height of 1.299" (33.00mm), which remains compatible with standard PCB layouts designed for the original part.

Q: Which substitute offers the best reliability for long-term applications?

A: EKXJ351ELL101MLN3S and UCY2V101MHD both provide 12000-hour lifetimes at 105°C with 350 V ratings. EKXJ351ELL101MLN3S includes AEC-Q200 automotive qualification, making it suitable for demanding automotive and industrial applications.

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