Equivalent & Substitute Parts for LKX2W151MESA35

Part Overview

The LKX2W151MESA35 is a 150 µF, 450 V aluminum electrolytic capacitor manufactured by Nichicon in the LKX series. This radial, can-style snap-in capacitor is designed for audio applications 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 when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

LKX2W151MESA35

NichiconIn Stock: 1028LKX2W151MESA35 Datasheet

Current PartRFQ

LAS2W151MELA35

NichiconIn Stock: 1252LAS2W151MELA35 Datasheet

UpgradeRFQ

LKX2W151MESZ45

NichiconIn Stock: 1206LKX2W151MESZ45 Datasheet

SimilarRFQ

475MXH150MEFCSN25X35

RubyconIn Stock: 1401475MXH150MEFCSN25X35 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LKX2W151MESA35 is determined by the following criteria:

Primary Substitution Parameters:

• Capacitance: 150 µF (exact match required)
• Voltage Rating: 450 V minimum (equal or higher acceptable)
• Tolerance: ±20% (exact match required)
• Lifetime: 2000 Hrs @ 105°C (exact match required)
• Operating Temperature: -25°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)

Mechanical Compatibility Parameters:

• Size / Dimension: 0.984" Dia (25.00 mm) (exact match required for direct board fit)
• Height - Seated (Max): 1.457" (37.00 mm) (exact match required for direct board fit)

Substitutes are classified as follows:

Upgrade Substitutes: Parts that meet or exceed all primary electrical parameters while maintaining mechanical compatibility. These parts provide equivalent or improved performance.

Similar Substitutes: Parts that meet all primary electrical parameters but differ in mechanical dimensions. These require board layout verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

LAS2W151MELA35 (Nichicon LAS Series): This part is a direct upgrade substitute. It maintains identical electrical specifications and mechanical dimensions as the LKX2W151MESA35. Both parts are ROHS3 compliant and active in production. The LAS2W151MELA35 is suitable for direct replacement in applications where the LKX2W151MESA35 is specified, with no board layout modifications required.

LKX2W151MESZ45 (Nichicon LKX Series): This part maintains all electrical specifications but differs in mechanical dimensions. The diameter is reduced to 0.866" (22.00 mm) and height is increased to 1.850" (47.00 mm). This part is ROHS3 compliant and active in production. Selection requires verification that the modified dimensions are compatible with the target board layout and clearance constraints.

475MXH150MEFCSN25X35 (Rubycon MXH Series): This part is an upgrade substitute with a higher voltage rating of 475 V, exceeding the 450 V requirement. It maintains identical mechanical dimensions and all other electrical specifications as the LKX2W151MESA35. Both parts are ROHS3 compliant and active in production. The higher voltage rating provides additional design margin and is suitable for direct replacement.

Frequently Asked Questions (FAQ)

Q: Can LAS2W151MELA35 be used as a direct replacement for LKX2W151MESA35?

A: Yes. The LAS2W151MELA35 meets all electrical and mechanical specifications of the LKX2W151MESA35. Both parts have identical capacitance (150 µF), voltage rating (450 V), tolerance (±20%), lifetime (2000 Hrs @ 105°C), operating temperature range (-25°C ~ 105°C), lead spacing (0.394" / 10.00 mm), size (0.984" Dia / 25.00 mm), and height (1.457" / 37.00 mm). No board modifications are required.

Q: What is the difference between LKX2W151MESZ45 and the main part?

A: The LKX2W151MESZ45 differs in physical dimensions. The diameter is 0.866" (22.00 mm) instead of 0.984" (25.00 mm), and the height is 1.850" (47.00 mm) instead of 1.457" (37.00 mm). All electrical parameters remain identical. Board layout verification is necessary before substitution.

Q: Is 475MXH150MEFCSN25X35 compatible with circuits designed for 450 V?

A: Yes. The 475MXH150MEFCSN25X35 has a rated voltage of 475 V, which exceeds the 450 V requirement. Higher voltage ratings provide additional safety margin in the circuit. All other electrical and mechanical specifications match the LKX2W151MESA35.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The LAS2W151MELA35, LKX2W151MESZ45, and 475MXH150MEFCSN25X35 are all ROHS3 compliant, matching the compliance status of the LKX2W151MESA35.

Q: Which substitute part requires board layout changes?

A: The LKX2W151MESZ45 requires board layout verification due to its different mechanical dimensions. The reduced diameter and increased height may affect component placement and clearance. The LAS2W151MELA35 and 475MXH150MEFCSN25X35 maintain identical dimensions and require no layout modifications.

Q: Can these parts be used interchangeably in audio applications?

A: The LKX2W151MESA35 and LKX2W151MESZ45 are both specified for audio applications. The LAS2W151MELA35 is specified for general purpose applications, and the 475MXH150MEFCSN25X35 is specified for general purpose applications. All parts meet the electrical requirements for audio use based on their rated specifications.