MALREKA00BA147MM0K Equivalent & Substitute Parts

Part Overview

The MALREKA00BA147MM0K is a 4.7 µF 160 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 design support and production continuity. The part is rated for general-purpose applications with a 2000-hour lifetime at 85°C and operates across the temperature range of -40°C to 85°C.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±20%
Voltage Rating	160 V
ESR @ 120 Hz	42.3 Ohm
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	53 mA
Lead Spacing	0.098" (2.50 mm)
Case Diameter	0.248" (6.30 mm)
Height (Seated Max)	0.492" (12.50 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MALREKA00BA147MM0K is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Capacitance: 4.7 µF (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Lead Spacing: 0.098" (2.50 mm) (exact match required)
Case Diameter: 0.248" (6.30 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)

Voltage Rating Substitution Logic: Substitute parts are grouped into two categories based on voltage rating:

Parametric Equivalents (160 V Rating): Parts with identical 160 V voltage rating maintain full electrical compatibility with the original design specification.
Upgrade Substitutes (200 V and 250 V Ratings): Parts with higher voltage ratings (200 V or 250 V) are electrically compatible as they exceed the original 160 V requirement. These upgrades provide enhanced voltage margin and are suitable for direct replacement in applications where the original 160 V specification is not a limiting constraint.

All substitute parts maintain identical physical dimensions, lead spacing, and mounting characteristics, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120 Hz	Lead Spacing	Case Diameter	Height (Max)	Status
MALREKA00BA147MM0K	Vishay Beyschlag/Draloric/BC Components	EKA	4.7 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	53 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Obsolete
ESMG161ELL4R7MF11D	Chemi-Con	SMG	4.7 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	48 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Active
UVR2C4R7MED	Nichicon	UVR	4.7 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Obsolete
200LEX4.7MEFC6.3X11	Rubycon	LEX	4.7 µF	200 V	±20%	4000 Hrs @ 125°C	-40°C ~ 125°C	49 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.512" (13.00 mm)	Active
200LEX4R7MEFC6.3X11	Rubycon	LEX	4.7 µF	200 V	±20%	4000 Hrs @ 125°C	-40°C ~ 125°C	49 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.512" (13.00 mm)	Active
200LLE4R7MEFC6.3X11	Rubycon	LLE	4.7 µF	200 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	49 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.512" (13.00 mm)	Active
200LLE4R7MEFCMZ6.3X11	Rubycon	LLE	4.7 µF	200 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	49 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.512" (13.00 mm)	Active
250PK4.7MEFC6.3X11	Rubycon	PK	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	54 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Active
ESMQ201ELL4R7MF11D	Chemi-Con	SMQ	4.7 µF	200 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Active
ESMQ251ELL4R7MF11D	Chemi-Con	SMQ	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	270 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Active
UVK2E4R7MED	Nichicon	UVK	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.098" (2.50 mm)	0.248" (6.30 mm)	0.492" (12.50 mm)	Obsolete

Engineering Selection Recommendations

Parametric Equivalent (160 V Rating):

ESMG161ELL4R7MF11D from Chemi-Con is the primary parametric equivalent. This part maintains the original 160 V voltage specification with identical electrical and mechanical characteristics. The part is active in production status and ROHS3 compliant, providing long-term supply assurance.

Upgrade Substitutes (200 V and 250 V Ratings):

Active production parts with higher voltage ratings are suitable for direct replacement:

200LEX4.7MEFC6.3X11 and 200LEX4R7MEFC6.3X11 (Rubycon LEX series, 200 V) provide enhanced voltage margin with 4000-hour lifetime at 125°C.
200LLE4R7MEFC6.3X11 and 200LLE4R7MEFCMZ6.3X11 (Rubycon LLE series, 200 V) offer extended lifetime of 12000 hours at 105°C.
250PK4.7MEFC6.3X11 (Rubycon PK series, 250 V) and ESMQ251ELL4R7MF11D (Chemi-Con SMQ series, 250 V) provide maximum voltage margin at 250 V rating.

All substitute parts are ROHS3 compliant and REACH unaffected. Selection between upgrade options depends on application requirements for operating temperature range and desired component lifetime.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V or 250 V rated capacitor in place of the original 160 V part?

A: Yes. Higher voltage-rated capacitors are electrically compatible with lower voltage applications. A 200 V or 250 V capacitor will function correctly in a circuit designed for 160 V operation, providing additional voltage safety margin.

Q: Are there physical dimension differences between the original part and substitutes?

A: Most substitutes maintain identical physical dimensions (0.248" diameter, 0.492" height, 0.098" lead spacing). However, some 200 V Rubycon LEX and LLE series parts have a maximum seated height of 0.512" instead of 0.492". Verify PCB layout clearance before selection if height is constrained.

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

A: Parametric equivalents (ESMG161ELL4R7MF11D and UVR2C4R7MED) match the original 160 V voltage rating exactly. Upgrade substitutes have higher voltage ratings (200 V or 250 V) and are suitable when voltage margin improvement is acceptable for the application.

Q: Which substitute offers the longest operational lifetime?

A: The Rubycon LLE series parts (200LLE4R7MEFC6.3X11 and 200LLE4R7MEFCMZ6.3X11) provide 12000-hour lifetime at 105°C, compared to 2000 hours at 85°C for the original specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the ripple current rating difference in ESMQ251ELL4R7MF11D?

A: The ESMQ251ELL4R7MF11D specifies 270 mA ripple current at 120 Hz, significantly higher than the original 53 mA specification. This reflects the specific design characteristics of the Chemi-Con SMQ series and does not affect compatibility for general-purpose applications.

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