LKSN2153MESC Equivalent & Substitute Parts

Part Overview

The LKSN2153MESC is a 15000 µF, 56 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is rated for 1000 hours at 85°C and is commonly used in audio applications requiring high capacitance values in compact form factors.

Key Parameters

Parameter	Value
Capacitance	15000 µF
Voltage Rating	56 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Height	2.047" (52.00 mm)
Mounting Type	Through Hole
Polarization	Polar

Substitute Part Grouping Explanation

Substitution for the LKSN2153MESC is determined by the following criteria:

Capacitance Match: 15000 µF (exact match required)
Voltage Rating: Minimum 56 V; higher ratings (63 V) are acceptable as they provide improved safety margin
Package Compatibility: Radial, can snap-in with identical lead spacing (10.00 mm) and physical dimensions (35.00 mm diameter, 52.00 mm height)
Mounting Type: Through hole configuration
Polarization: Polar electrolytic capacitor

Both substitute parts meet these criteria with upgraded voltage ratings of 63 V, providing enhanced reliability compared to the original 56 V specification.

Parameter Comparison

Parameter	LKSN2153MESC (Nichicon)	381LX153M063A052 (CDE)	63MXG15000MEFCSN35X50 (Rubycon)
Capacitance	15000 µF	15000 µF	15000 µF
Voltage Rating	56 V	63 V	63 V
Tolerance	±20%	±20%	±20%
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)
Height	2.047" (52.00 mm)	2.047" (52.00 mm)	2.047" (52.00 mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole
Polarization	Polar	Polar	Polar
Operating Temperature	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 105°C
Lifetime @ Temperature	1000 Hrs @ 85°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

Both substitute parts are suitable replacements for the obsolete LKSN2153MESC based on the following factors:

381LX153M063A052 (Cornell Dubilier Electronics)

Active product status with current manufacturing support
RoHS3 compliant
Specified ESR of 24 mOhm @ 120 Hz provides known electrical characteristics
Extended lifetime rating of 3000 hours at 105°C
Higher operating temperature range (-40°C ~ 105°C)

63MXG15000MEFCSN35X50 (Rubycon)

Active product status with current manufacturing support
RoHS3 compliant
Specified ripple current ratings at both low frequency (5.25 A @ 120 Hz) and high frequency (6.0375 A @ 10 kHz)
Extended lifetime rating of 3000 hours at 105°C
Higher operating temperature range (-40°C ~ 105°C)

Both parts provide improved thermal performance and extended operational life compared to the original specification.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor in place of a 56 V rated capacitor? A: Yes. A higher voltage rating provides a safety margin and is electrically compatible. The capacitor will function correctly in circuits designed for 56 V operation.

Q: Are the physical dimensions identical between the main part and substitutes? A: Yes. All three parts share identical package dimensions: 35.00 mm diameter, 52.00 mm height, and 10.00 mm lead spacing. They are mechanically interchangeable in snap-in mounting applications.

Q: What is the significance of the extended lifetime rating on the substitute parts? A: The substitute parts are rated for 3000 hours at 105°C compared to 1000 hours at 85°C for the original part. This indicates improved capacitor construction and materials, resulting in longer operational life under thermal stress.

Q: Are both substitute parts RoHS compliant? A: Yes. Both 381LX153M063A052 and 63MXG15000MEFCSN35X50 are RoHS3 compliant, meeting current environmental and regulatory requirements.

Q: Which substitute should I select if ripple current specifications are critical? A: The 63MXG15000MEFCSN35X50 provides explicit ripple current ratings at both 120 Hz (5.25 A) and 10 kHz (6.0375 A). The 381LX153M063A052 specifies ESR at 120 Hz (24 mOhm), which can be used to calculate ripple current if needed.

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