LQSW6471MELC40 Equivalent & Substitute Parts

Part Overview

The LQSW6471MELC40 is a 470 µF, 420 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is rated for 3000 hours at 105°C and is designed for general purpose applications requiring high voltage energy storage and filtering. The part is currently active in production with 92,500 units in stock.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements allow for upgraded electrical characteristics such as higher voltage ratings or extended operational lifetime.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	420 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Height (Seated Max)	1.654" (42.00 mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LQSW6471MELC40 are classified based on the following substitution criteria:

Parametric Equivalent: Parts maintaining identical electrical specifications (470 µF, 420 V, ±20% tolerance, 3000 Hrs @ 105°C) with identical mechanical dimensions and package configuration. These parts are direct functional replacements with no design modifications required.

Upgrade Parts: Parts with enhanced electrical characteristics including higher voltage ratings (450 V) or extended lifetime ratings (5000 Hrs @ 105°C), while maintaining identical capacitance, tolerance, mechanical dimensions, and package type. These parts provide improved performance margins and may be substituted when design requirements permit higher voltage operation or extended service life.

The following parameters determine substitution eligibility:

Capacitance value (470 µF)
Tolerance (±20%)
Package type (Radial, Can - Snap-In)
Lead spacing (0.394" / 10.00 mm)
Physical dimensions (1.378" Dia × 1.654" Height)
Mounting type (Through Hole)
Polarization (Polar)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	Lifetime @ 105°C	Operating Temp Range	Lead Spacing	Diameter	Height (Max)	Product Status	Inventory
LQSW6471MELC40	Nichicon	LQS	470 µF	420 V	±20%	3000 Hrs	-25°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Active	92,500 Pcs
LGNW6471MELC40	Nichicon	LGN	470 µF	420 V	±20%	3000 Hrs	-25°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Active	274,082 Pcs
450MXG470MEFCSN35X40	Rubycon	MXG	470 µF	450 V	±20%	3000 Hrs	-25°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Active	500,300 Pcs
450VXH470MEFCSN35X40	Rubycon	VXH	470 µF	450 V	±20%	5000 Hrs	-25°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Active	273,882 Pcs
B43508B5477M000	EPCOS - TDK Electronics	B43508	470 µF	450 V	±20%	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Not For New Designs	273,782 Pcs
B43642B5477M000	EPCOS - TDK Electronics	B43642	470 µF	450 V	±20%	3000 Hrs	-40°C ~ 105°C	0.394" (10.00 mm)	1.378" (35.00 mm)	1.654" (42.00 mm)	Active	866 Pcs

Engineering Selection Recommendations

LGNW6471MELC40 (Nichicon LGN Series): Direct parametric equivalent with identical electrical and mechanical specifications. Recommended as primary substitute when LQSW6471MELC40 availability is constrained. Both parts are manufactured by Nichicon, ROHS3 compliant, and maintain identical performance characteristics. Higher inventory availability (274,082 units) supports supply chain continuity.

450MXG470MEFCSN35X40 (Rubycon MXG Series): Upgrade substitute with 450 V voltage rating and identical 3000-hour lifetime. Suitable for applications where circuit design permits higher voltage operation. Active product status and high inventory (500,300 units) ensure availability. ROHS3 compliant.

450VXH470MEFCSN35X40 (Rubycon VXH Series): Upgrade substitute with 450 V voltage rating and extended 5000-hour lifetime at 105°C. Recommended for applications requiring enhanced reliability and extended service intervals. Active product status with substantial inventory (273,882 units). ROHS3 compliant.

B43508B5477M000 (EPCOS - TDK Electronics B43508 Series): Upgrade substitute with 450 V voltage rating and extended operating temperature range (-40°C to 105°C). Product status is "Not For New Designs," limiting suitability for new development programs. Inventory available (273,782 units). ROHS3 compliant.

B43642B5477M000 (EPCOS - TDK Electronics B43642 Series): Upgrade substitute with 450 V voltage rating and extended operating temperature range (-40°C to 105°C). Active product status supports new designs. Limited inventory (866 units) may present supply constraints. ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can LGNW6471MELC40 be used as a direct replacement for LQSW6471MELC40?

A: Yes. LGNW6471MELC40 is a parametric equivalent with identical capacitance (470 µF), voltage rating (420 V), tolerance (±20%), lifetime (3000 Hrs @ 105°C), and mechanical dimensions. No circuit modifications are required.

Q: What is the difference between the main part and upgrade substitutes?

A: Upgrade substitutes (450MXG470MEFCSN35X40, 450VXH470MEFCSN35X40, B43508B5477M000, B43642B5477M000) feature higher voltage ratings (450 V) compared to the main part (420 V). The 450VXH470MEFCSN35X40 additionally provides extended lifetime (5000 Hrs vs. 3000 Hrs @ 105°C). These upgrades are suitable only when circuit design permits higher voltage operation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the environmental certification of the main part LQSW6471MELC40.

Q: Which substitute has the best availability?

A: 450MXG470MEFCSN35X40 (Rubycon MXG Series) has the highest inventory at 500,300 units, followed by LGNW6471MELC40 (Nichicon LGN Series) at 274,082 units.

Q: Can B43508B5477M000 be used in new designs?

A: B43508B5477M000 carries a "Not For New Designs" product status. While functionally compatible, this part is not recommended for new development programs. B43642B5477M000 is the recommended EPCOS alternative for new designs.

Q: Do all substitute parts maintain the same physical footprint?

A: Yes. All substitute parts maintain identical lead spacing (0.394" / 10.00 mm), diameter (1.378" / 35.00 mm), and height (1.654" / 42.00 mm), ensuring mechanical compatibility with existing PCB layouts.

Q: What is the operating temperature range difference?

A: The main part LQSW6471MELC40 operates from -25°C to 105°C. EPCOS parts (B43508B5477M000, B43642B5477M000) extend the lower limit to -40°C. Rubycon parts maintain the -25°C to 105°C range. Select based on application temperature requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message