Equivalent & Substitute Parts for LKX2E471MESA35

Part Overview

The Nichicon LKX2E471MESA35 is a 470 µF, 250 V aluminum electrolytic capacitor in radial, can snap-in package configuration. This component is designed for audio applications and operates across a temperature range of -40°C to 105°C with a rated lifetime of 2000 hours at 105°C. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and performance optimization options for applications requiring compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)
Height (Seated Max)	1.457" (37.00 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 105°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LKX2E471MESA35 are qualified based on strict electrical and mechanical parameter matching:

Electrical Equivalence Criteria:

Capacitance: 470 µF (exact match required)
Voltage Rating: 250 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Operating Temperature Range: -40°C to 105°C (exact match required)

Mechanical Equivalence Criteria:

Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Diameter: 0.984" (25.00 mm) (exact match required)
Height (Seated Max): 1.457" (37.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)

Compliance Criteria:

RoHS Status: ROHS3 Compliant (exact match required)
REACH Status: REACH Unaffected (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the main part in applications requiring 470 µF, 250 V aluminum electrolytic capacitors in snap-in radial can configuration.

Parameter Comparison

Parameter	LKX2E471MESA35 (Nichicon)	381LR471M250J032 (CDE)	B43509F2477M000 (EPCOS - TDK)
Capacitance	470 µF	470 µF	470 µF
Voltage Rating	250 V	250 V	250 V
Tolerance	±20%	±20%	±20%
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)	0.984" (25.00 mm)	0.984" (25.00 mm)
Height (Seated Max)	1.457" (37.00 mm)	1.457" (37.00 mm)	1.457" (37.00 mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole
Operating Temperature Range	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C
Polarization	Polar	Polar	Polar
Lifetime @ 105°C	2000 Hrs	3000 Hrs	3000 Hrs
ESR @ Rated Frequency	Not specified	423 mOhm @ 120 Hz	170 mOhm @ 100 Hz
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—LKX2E471MESA35 (Nichicon), 381LR471M250J032 (Cornell Dubilier Electronics), and B43509F2477M000 (EPCOS - TDK)—are active production components with ROHS3 compliance and REACH unaffected status. They are electrically and mechanically interchangeable for applications requiring 470 µF, 250 V aluminum electrolytic capacitors in radial snap-in can configuration.

The substitute parts 381LR471M250J032 and B43509F2477M000 offer extended lifetime ratings of 3000 hours at 105°C compared to the main part's 2000-hour rating. Selection between these parts should be based on availability, lead time, and specific application requirements within the defined electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can 381LR471M250J032 be used as a direct replacement for LKX2E471MESA35?

A: Yes. Both parts are 470 µF, 250 V aluminum electrolytic capacitors with identical mechanical dimensions (0.984" diameter, 1.457" height, 0.394" lead spacing), radial snap-in can package, through-hole mounting, and operating temperature range of -40°C to 105°C. Both are ROHS3 compliant and REACH unaffected.

Q: Can B43509F2477M000 be used as a direct replacement for LKX2E471MESA35?

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by exact matching of capacitance (470 µF), voltage rating (250 V), tolerance (±20%), package type (radial snap-in can), mechanical dimensions (0.984" diameter, 1.457" height, 10.00 mm lead spacing), mounting type (through-hole), operating temperature range (-40°C to 105°C), polarization (polar), and compliance certifications (ROHS3, REACH unaffected).

Q: Are there any differences in ripple current ratings between these parts?

A: Ripple current specifications vary between manufacturers and measurement frequencies. The LKX2E471MESA35 specifies 1.4 A @ 120 Hz and 2.1 A @ 50 kHz. The 381LR471M250J032 specifies 1.85 A @ 120 Hz and 2.64 A @ 20 kHz. The B43509F2477M000 specifies 1.53 A @ 100 Hz. These variations reflect different measurement methodologies and do not affect mechanical or electrical interchangeability for the specified 470 µF, 250 V rating.

Q: Do all three parts have the same lifetime rating?

A: No. The LKX2E471MESA35 has a rated lifetime of 2000 hours at 105°C. Both substitute parts, 381LR471M250J032 and B43509F2477M000, have rated lifetimes of 3000 hours at 105°C. All parts remain mechanically and electrically interchangeable within the specified parameters.

Q: Are there ESR differences between these parts?

A: ESR specifications are provided for the substitute parts but not for the main part. The 381LR471M250J032 specifies 423 mOhm @ 120 Hz, and the B43509F2477M000 specifies 170 mOhm @ 100 Hz. These differences reflect manufacturer design variations and do not affect mechanical or electrical interchangeability for applications requiring 470 µF, 250 V capacitors in the specified package.

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