MALREKA00JS268XG0K Equivalent & Substitute Parts

Part Overview

The MALREKA00JS268XG0K is a 68 µF, 400 V aluminum electrolytic capacitor in radial, can package manufactured by Vishay Beyschlag/Draloric/BC Components from the EKA series. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part is rated for 2000 hours at 85°C with an ESR of 3.9 Ohm @ 120 Hz and is suitable for general-purpose applications requiring through-hole mounting.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	400 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
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
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MALREKA00JS268XG0K is determined by strict adherence to the following electrical and mechanical parameters:

Core Compatibility Requirements:

Capacitance: 68 µF (exact match required)
Voltage Rating: minimum 400 V
Tolerance: ±20%
Polarization: Polar
Mounting Type: Through Hole
Package Type: Radial, Can
Lead Spacing: 0.295" (7.50 mm)
Case Diameter: 0.630" (16.00 mm)
Height: compatible with 1.319" (34.60 mm) maximum seated height

Substitution Categories:

Direct Equivalents maintain all electrical and mechanical specifications at the original 400 V rating and 2000 hour lifetime at 85°C.

Upgraded Substitutes provide enhanced performance through higher temperature ratings (105°C operation), extended lifetime (5000 or 12000 hours), or higher voltage ratings (420 V), while maintaining mechanical compatibility and the same 68 µF capacitance.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Case Dia	Height Max	Product Status	RoHS
MALREKA00JS268XG0K	Vishay Beyschlag/Draloric/BC Components	EKA	68 µF	400 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Obsolete	ROHS3
ESMQ401ELL680MLN3S	Chemi-Con	SMQ	68 µF	400 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Active	ROHS3
UVK2G680MHD	Nichicon	UVK	68 µF	400 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.319" (34.60 mm)	Not For New Designs	ROHS3
EKMQ401ELL680MLN3S	Chemi-Con	KMQ	68 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Active	ROHS3
EKXJ421ELL680MLN3S	Chemi-Con	KXJ	68 µF	420 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Active	ROHS3
UCYW6680MHD	Nichicon	UCY	68 µF	420 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Active	ROHS3
UPT2G680MHD	Nichicon	UPT	68 µF	400 V	±20%	5000 Hrs @ 105°C	-25°C ~ 105°C	0.295" (7.50 mm)	0.630" (16.00 mm)	1.299" (33.00 mm)	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Equivalent Performance):

ESMQ401ELL680MLN3S (Chemi-Con SMQ series) is the primary direct equivalent. It maintains 400 V rating and 2000 hour lifetime at 85°C with identical capacitance and tolerance. The part is active and ROHS3 compliant. Height is 0.020" shorter (1.299" vs 1.319"), which is within typical PCB layout tolerances for through-hole radial capacitors.

UVK2G680MHD (Nichicon UVK series) provides equivalent electrical specifications but carries "Not For New Designs" status, limiting its suitability for new production despite active inventory.

For Enhanced Performance (Upgraded Substitutes):

EKMQ401ELL680MLN3S (Chemi-Con KMQ series) upgrades the temperature rating to 105°C with 2000 hour lifetime, extending operational capability in higher-temperature environments. Active product status supports long-term availability.

UPT2G680MHD (Nichicon UPT series) provides 5000 hour lifetime at 105°C with 400 V rating and maintains the original -25°C lower temperature limit, offering improved thermal performance while preserving the voltage specification.

EKXJ421ELL680MLN3S (Chemi-Con KXJ series) and UCYW6680MHD (Nichicon UCY series) both provide 420 V rating with 12000 hour lifetime at 105°C. These are suitable where higher voltage margin and extended lifetime are required. EKXJ421ELL680MLN3S includes AEC-Q200 automotive qualification.

All substitute parts are ROHS3 compliant and maintain the required mechanical dimensions for through-hole mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can ESMQ401ELL680MLN3S replace MALREKA00JS268XG0K directly?

A: Yes. Both parts share identical capacitance (68 µF), voltage rating (400 V), tolerance (±20%), and lifetime specification (2000 Hrs @ 85°C). The 0.020" height difference (1.299" vs 1.319") is within standard PCB layout tolerances for radial capacitors. Lead spacing and case diameter are identical.

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

A: Direct equivalents maintain all original electrical specifications. Upgraded substitutes enhance performance through higher operating temperatures (105°C vs 85°C), extended lifetime ratings (5000 or 12000 hours vs 2000 hours), or higher voltage ratings (420 V vs 400 V), while maintaining mechanical compatibility and the same 68 µF capacitance.

Q: Why is UVK2G680MHD marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new applications. While electrically equivalent, it is not recommended for new production due to uncertain long-term availability.

Q: Can I use a 420 V rated capacitor in place of a 400 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin. EKXJ421ELL680MLN3S and UCYW6680MHD are both rated 420 V and are mechanically compatible. This substitution is valid for applications where the original 400 V specification is not a constraint.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the original MALREKA00JS268XG0K specification.

Q: What is the significance of the 0.295" (7.50 mm) lead spacing?

A: Lead spacing determines PCB hole pattern compatibility. All substitute parts maintain this specification, ensuring direct PCB footprint compatibility without layout modification.

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

A: EKXJ421ELL680MLN3S and UCYW6680MHD both provide 12000 hour lifetime at 105°C, the highest rating among available substitutes. Both are active products with current manufacturer support.

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