Equivalent & Substitute Parts for LKX2W471MESC45

Part Overview

The LKX2W471MESC45 is a 470 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for audio applications and operates across a temperature range of -25°C to 105°C with a rated lifetime of 2000 hours at 105°C. The part is Active status and ROHS3 compliant.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when extended lifetime requirements exceed the original specification, or when alternative manufacturers' components meet the same electrical and mechanical parameters within acceptable tolerances.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	450 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)
Height (Seated Max)	1.850" (47.00 mm)
Operating Temperature Range	-25°C to 105°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LKX2W471MESC45 is determined by strict equivalence across the following parameters:

Capacitance: 470 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Case Diameter: 1.378" (35.00 mm) (exact match required)
Height (Seated Max): 1.850" to 1.870" (47.00 mm to 47.50 mm) (within tolerance)
Operating Temperature Range: -25°C to 105°C (exact match required)
Polarization: Polar (exact match required)

All substitute parts listed meet these core electrical and mechanical requirements. Variations in lifetime rating, ripple current specifications, and manufacturer do not affect direct substitutability when all primary parameters align.

Parameter Comparison

Parameter	LKX2W471MESC45 (Nichicon)	LGN2W471MELC45 (Nichicon)	LGX2W471MELC45 (Nichicon)	450VXG470MEFCSN35X45 (Rubycon)	EKMQ451VSN471MA45S (Chemi-Con)	EKMT451VSN471MA45S (Chemi-Con)
Capacitance	470 µF	470 µF	470 µF	470 µF	470 µF	470 µF
Voltage Rating	450 V	450 V	450 V	450 V	450 V	450 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Case Diameter	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)	1.378" (35.00 mm)
Height (Seated Max)	1.850" (47.00 mm)	1.850" (47.00 mm)	1.850" (47.00 mm)	1.850" (47.00 mm)	1.850" (47.00 mm)	1.870" (47.50 mm)
Operating Temperature	-25°C to 105°C	-25°C to 105°C	-25°C to 105°C	-25°C to 105°C	-25°C to 105°C	-25°C to 105°C
Lifetime @ 105°C	2000 Hrs	3000 Hrs	5000 Hrs	5000 Hrs	2000 Hrs	3000 Hrs
Ripple Current @ 120 Hz	1.78 A	1.78 A	1.83 A	2.05 A	1.74 A	2.67 A
Ripple Current @ 50 kHz	2.5454 A	2.5454 A	2.6169 A	N/A	2.4882 A	3.8181 A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts are Active status components and meet the core electrical and mechanical requirements for direct substitution with the LKX2W471MESC45.

Nichicon LGN2W471MELC45 and LGX2W471MELC45: These parts offer extended lifetime ratings (3000 and 5000 hours respectively at 105°C) compared to the original 2000-hour specification. Both maintain ROHS3 compliance and are suitable for applications requiring improved reliability margins.

Rubycon 450VXG470MEFCSN35X45: This part provides 5000-hour lifetime rating with ROHS3 compliance. Physical dimensions remain within acceptable tolerance, with identical lead spacing and case diameter.

Chemi-Con EKMQ451VSN471MA45S and EKMT451VSN471MA45S: Both parts meet all core substitution criteria. The EKMT451VSN471MA45S offers 3000-hour lifetime with slightly elevated height (1.870" vs. 1.850") and RoHS compliance (non-ROHS3 designation). The EKMQ451VSN471MA45S maintains 2000-hour lifetime equivalent to the original part.

Selection among these alternatives depends on application-specific requirements for lifetime, ripple current handling, and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the LKX2W471MESC45 with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts maintain identical capacitance (470 µF), voltage rating (450 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (10.00 mm), and case diameter (35.00 mm). Physical fit and electrical performance are equivalent.

Q: What is the significance of the different lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C). The LKX2W471MESC45 is rated for 2000 hours. Substitute parts with 3000 or 5000-hour ratings provide extended service life under identical thermal conditions, offering improved reliability margins for long-term applications.

Q: Does the height difference in EKMT451VSN471MA45S (1.870" vs. 1.850") affect compatibility?

A: The 0.020" (0.50 mm) height difference falls within acceptable mechanical tolerance for snap-in can packages. Verify clearance in your specific PCB layout and enclosure design before implementation.

Q: Are all substitute parts RoHS compliant?

A: Five of the six substitute parts carry ROHS3 compliance designation. The EKMT451VSN471MA45S carries RoHS compliance without the ROHS3 designation. Verify compliance requirements for your application and regulatory jurisdiction.

Q: What is the difference between ROHS3 and RoHS compliance?

A: ROHS3 refers to compliance with the Restriction of Hazardous Substances Directive 2011/65/EU (recast). RoHS without the "3" designation may refer to earlier versions of the directive. Confirm specific compliance requirements with your procurement or quality assurance department.

Q: Can I use these parts interchangeably in the same design?

A: Yes, for direct substitution purposes. All parts share identical electrical specifications (capacitance, voltage, tolerance) and mechanical form factors. Differences in ripple current handling and lifetime ratings do not affect basic substitutability but may influence performance in high-ripple or extended-life applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message