MALREKA00BA147ML0K Equivalent & Substitute Parts

Part Overview

The MALREKA00BA147ML0K 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 operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	160 V
Tolerance	±20%
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 MALREKA00BA147ML0K 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)
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)
Polarization: Polar (exact match required)

Voltage Rating Substitution Logic: Parts with voltage ratings equal to or greater than 160 V are acceptable substitutes. Higher voltage ratings provide enhanced reliability margins in the application circuit.

Lifetime and Temperature Considerations: Substitute parts may have different lifetime ratings and maximum operating temperatures. Parts with extended lifetime ratings (4000 Hrs @ 125°C or 12000 Hrs @ 105°C) or higher maximum operating temperatures (105°C or 125°C) represent performance upgrades over the original 2000 Hrs @ 85°C specification.

Parametric Equivalents: Parts matching all mechanical and electrical parameters at the same 160 V rating are classified as parametric equivalents and provide direct functional replacement.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120 Hz	Height (Max)	Status
MALREKA00BA147ML0K	Vishay Beyschlag/Draloric/BC Components	EKA	4.7 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	53 mA	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	0.492" (12.50 mm)	Active
UVR2C4R7MED	Nichicon	UVR	4.7 µF	160 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.492" (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	0.512" (13.00 mm)	Active
200LEX4R7MEFC6.3X11	Rubycon	LEX	4.7 µF	200 V	±20%	4000 Hrs @ 125°C	-40°C ~ 125°C	49 mA	0.512" (13.00 mm)	Active
200LLE4R7MEFC6.3X11	Rubycon	LLE	4.7 µF	200 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	49 mA	0.512" (13.00 mm)	Active
200LLE4R7MEFCMZ6.3X11	Rubycon	LLE	4.7 µF	200 V	±20%	12000 Hrs @ 105°C	-40°C ~ 105°C	49 mA	0.512" (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	0.492" (12.50 mm)	Active
ESMQ201ELL4R7MF11D	Chemi-Con	SMQ	4.7 µF	200 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.492" (12.50 mm)	Active
ESMQ251ELL4R7MF11D	Chemi-Con	SMQ	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	270 mA	0.492" (12.50 mm)	Active
UVK2E4R7MED	Nichicon	UVK	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	0.492" (12.50 mm)	Obsolete

Engineering Selection Recommendations

Parametric Equivalent Selection (160 V Rating): ESMG161ELL4R7MF11D and UVR2C4R7MED provide direct parametric equivalence to MALREKA00BA147ML0K. Both maintain the 160 V voltage rating, 4.7 µF capacitance, ±20% tolerance, and identical mechanical dimensions. ESMG161ELL4R7MF11D is recommended as the primary choice due to active product status and current manufacturing availability. UVR2C4R7MED remains available but carries obsolete status classification.

Upgrade Selection (200 V Rating): ESMQ201ELL4R7MF11D provides a direct mechanical and electrical upgrade path with active status. This part maintains identical case dimensions (0.492" height) while increasing voltage rating to 200 V and offering enhanced ripple current handling at 100 kHz (125 mA). Rubycon LEX series parts (200LEX4.7MEFC6.3X11 and 200LEX4R7MEFC6.3X11) offer extended lifetime (4000 Hrs @ 125°C) and higher maximum operating temperature (125°C) with slightly increased height (0.512").

Extended Lifetime Selection (200 V Rating): Rubycon LLE series parts (200LLE4R7MEFC6.3X11 and 200LLE4R7MEFCMZ6.3X11) deliver the longest operational lifetime specification at 12000 Hrs @ 105°C with 200 V rating. These parts accommodate applications requiring extended service intervals and higher temperature stability, though they require 0.512" mounting height clearance.

Higher Voltage Selection (250 V Rating): 250PK4.7MEFC6.3X11, ESMQ251ELL4R7MF11D, and UVK2E4R7MED provide 250 V rating while maintaining 4.7 µF capacitance and ±20% tolerance. These parts are suitable for circuits requiring enhanced voltage margin. ESMQ251ELL4R7MF11D and 250PK4.7MEFC6.3X11 carry active status. All three maintain the 0.492" height specification.

Compliance Verification: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory classification. All parts are classified as EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can I use a 200 V rated capacitor in place of the 160 V original? A: Yes. Higher voltage ratings are acceptable substitutes provided all other electrical and mechanical parameters match. A 200 V capacitor operates safely in a 160 V circuit and provides additional voltage margin.

Q: What is the difference between parametric equivalents and upgrade substitutes? A: Parametric equivalents (ESMG161ELL4R7MF11D, UVR2C4R7MED) match all specifications of the original part including voltage rating. Upgrade substitutes offer enhanced performance through higher voltage ratings, extended lifetime ratings, or improved temperature operating ranges while maintaining mechanical compatibility.

Q: Do the Rubycon LLE series parts fit in the same PCB footprint? A: The LLE series parts have a maximum seated height of 0.512" compared to the original 0.492". This 0.020" (0.5 mm) increase requires verification of available vertical clearance in the application. Lead spacing and case diameter remain identical.

Q: Why do some substitute parts show different ripple current ratings? A: Ripple current capacity varies by manufacturer design and internal construction. The values provided represent maximum ratings at specified frequencies. All listed parts maintain adequate ripple current handling for general-purpose applications at the specified 53 mA @ 120 Hz baseline.

Q: Are obsolete-status parts still acceptable for new designs? A: Obsolete parts (UVK2E4R7MED, UVR2C4R7MED) remain functionally equivalent but carry supply risk. Active-status parts (ESMG161ELL4R7MF11D, ESMQ201ELL4R7MF11D, Rubycon series) are recommended for new designs to ensure long-term availability and manufacturing continuity.

Q: What does the ±20% tolerance specification mean? A: All listed parts maintain ±20% capacitance tolerance, meaning actual capacitance values fall within 3.76 µF to 5.64 µF. This tolerance is consistent across all substitute options and does not affect substitution compatibility.

Q: Can I mix different substitute parts in the same circuit? A: Yes, provided the circuit design accommodates the voltage rating and temperature operating range of each part. Mixing parts with different voltage ratings is acceptable; use the lowest voltage rating as the circuit design constraint.

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