LLS2W151MELB Equivalent & Substitute Parts

Part Overview

The LLS2W151MELB is a 150 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as Active product status and is designed for general purpose applications requiring high voltage energy storage and filtering. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 3000 hours at 85°C. Equivalent and substitute parts are necessary when the primary part is unavailable, when thermal performance requirements exceed standard specifications, or when alternative lead spacing and dimensional configurations are required for specific PCB layouts.

Substiute Parts

LLS2W151MELB

NichiconIn Stock: 1019LLS2W151MELB Datasheet

Current PartRFQ

LGW2W151MELB25

NichiconIn Stock: 1112LGW2W151MELB25 Datasheet

UpgradeRFQ

LLS2W151MELA

NichiconIn Stock: 1652LLS2W151MELA Datasheet

SimilarRFQ

LLS2W151MELZ

NichiconIn Stock: 3571LLS2W151MELZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2W151MELB is determined by the following mandatory parameters: capacitance value (150 µF), rated voltage (450 V), tolerance (±20%), lead spacing (10.00 mm), package type (Radial, Can - Snap-In), and mounting configuration (Through Hole). All substitute parts must maintain these core electrical and mechanical specifications to ensure direct compatibility without PCB redesign.

Substitute parts are categorized into two groups:

Upgrade Substitute: Parts with enhanced thermal performance (higher temperature rating or extended lifetime at elevated temperatures) while maintaining all core electrical and mechanical parameters.

Similar Substitutes: Parts with identical electrical specifications but variations in physical dimensions (can diameter and height), which may require PCB layout verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

LGW2W151MELB25 (Upgrade Substitute): This part is suitable for applications requiring extended thermal performance. It maintains identical electrical specifications and physical dimensions to the LLS2W151MELB while offering an elevated maximum operating temperature of 105°C and rated lifetime of 3000 hours at 105°C. Both parts are Active status and ROHS3 compliant. Selection of this upgrade is appropriate when thermal margin is required in high-ambient or high-dissipation environments.

LLS2W151MELA (Similar Substitute): This part shares identical electrical specifications and lead spacing with the LLS2W151MELB but features a smaller can diameter (25.00 mm vs. 30.00 mm) and greater height (30.00 mm vs. 25.00 mm). PCB layout verification is required to confirm clearance compatibility before implementation. Both parts are Active status and ROHS3 compliant.

LLS2W151MELZ (Similar Substitute): This part shares identical electrical specifications and lead spacing with the LLS2W151MELB but features a smaller can diameter (22.00 mm) and greater height (40.00 mm). PCB layout verification is required to confirm clearance compatibility before implementation. Both parts are Active status and ROHS3 compliant.

All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can LGW2W151MELB25 be used as a direct replacement for LLS2W151MELB?

A: Yes. The LGW2W151MELB25 maintains identical capacitance (150 µF), voltage rating (450 V), tolerance (±20%), lead spacing (10.00 mm), and physical dimensions (30.00 mm diameter, 25.00 mm height). The primary difference is enhanced thermal performance with a maximum operating temperature of 105°C versus 85°C. No PCB modifications are required.

Q: What are the dimensional differences between LLS2W151MELA and LLS2W151MELB?

A: Both parts have identical lead spacing (10.00 mm) and electrical specifications. LLS2W151MELA has a can diameter of 25.00 mm and height of 30.00 mm, while LLS2W151MELB has a can diameter of 30.00 mm and height of 25.00 mm. PCB layout clearance must be verified before substitution.

Q: What are the dimensional differences between LLS2W151MELZ and LLS2W151MELB?

A: Both parts have identical lead spacing (10.00 mm) and electrical specifications. LLS2W151MELZ has a can diameter of 22.00 mm and height of 40.00 mm, while LLS2W151MELB has a can diameter of 30.00 mm and height of 25.00 mm. PCB layout clearance must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LGW2W151MELB25, LLS2W151MELA, and LLS2W151MELZ are all ROHS3 compliant, matching the compliance status of the LLS2W151MELB.

Q: What is the primary reason to select LGW2W151MELB25 over LLS2W151MELB?

A: Selection of LGW2W151MELB25 is appropriate when the application requires operation at temperatures exceeding 85°C or when extended thermal margin is necessary. The LGW2W151MELB25 is rated for continuous operation up to 105°C with 3000-hour lifetime at that temperature.

Q: Can LLS2W151MELZ be used in space-constrained applications?

A: LLS2W151MELZ has a smaller can diameter (22.00 mm) than LLS2W151MELB (30.00 mm), making it suitable for radial space constraints. However, its height is greater (40.00 mm vs. 25.00 mm), requiring verification of axial clearance. PCB layout analysis is mandatory before implementation.