SI-B8V521B2CUS LED Module Equivalent & Substitute Parts

Part Overview

The SI-B8V521B2CUS is a Samsung Semiconductor LED Module classified as an LED Lighting COB Engine Module, specifically a warm white linear light strip with 3000K color temperature. This component is designated as Obsolete product status. The module delivers 7214 lumens at nominal test conditions and operates at 48.8V forward voltage with a test current of 1.12A. Due to its obsolete classification, equivalent substitute parts are necessary for ongoing production requirements, maintenance applications, and design continuity. Substitute parts must maintain compatibility across electrical performance, physical dimensions, and optical characteristics while meeting current availability and product status requirements.

Substiute Parts

SI-B8V521B2CUS

Samsung Semiconductor, Inc.In Stock: 1418SI-B8V521B2CUS Datasheet

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SI-B8V463B20WW

Samsung Semiconductor, Inc.In Stock: 1125SI-B8V463B20WW Datasheet

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SI-B8V522B2CUS

Samsung Semiconductor, Inc.In Stock: 966SI-B8V522B2CUS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SI-B8V521B2CUS are selected based on strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Configuration: Linear Light Strip (mandatory match)
• Color: White, Warm (mandatory match)
• CCT: 3000K (mandatory match)
• Base Product Number: SI-B8 (mandatory match)
• Lens Type: Flat (mandatory match)
• Physical Dimensions: 1120.00 mm L × 18.00 mm W (mandatory match)
• CRI: 80 (mandatory match)
• Manufacturer: Samsung Semiconductor, Inc. (mandatory match)

Secondary Compatibility Parameters:

• Voltage – Forward (Vf) Typ: Within acceptable operating range for driver compatibility
• Current – Test and Current – Max: Within acceptable power delivery specifications
• Lumens/Watt efficiency: Performance indicator for optical output consistency
• Height: Physical form factor consideration for mechanical integration

Two substitute parts meet these criteria: SI-B8V463B20WW and SI-B8V522B2CUS. Both maintain identical physical dimensions, color temperature, CRI, lens type, and base product classification. Electrical parameters vary within acceptable ranges for linear light strip applications.

Parameter Comparison

Engineering Selection Recommendations

SI-B8V463B20WW (Active Status Substitute)

This substitute is classified as Active product status, ensuring long-term availability and supply chain continuity. The SI-B8V463B20WW maintains identical physical dimensions (1120 mm × 18 mm), color temperature (3000K), CRI (80), and lens type (Flat) as the main part. Electrical parameters show reduced forward voltage (45V vs. 48.8V) and lower test current (1.01A vs. 1.12A), resulting in improved efficiency (166 lm/W vs. 132 lm/W). The luminous flux output is higher at 7570 lm. Height is reduced to 3.70 mm, which may require mechanical form factor verification in existing designs. Maximum current rating is higher at 2.02A. This part is suitable for new designs and ongoing production requiring active product status support.

SI-B8V522B2CUS (Obsolete Status Substitute)

This substitute maintains Obsolete product status classification, similar to the main part. Physical dimensions, height (5.50 mm), color temperature (3000K), CRI (80), and lens type (Flat) are identical to SI-B8V521B2CUS. Forward voltage is 46.5V and test current is 1.12A, closely matching the main part electrical profile. Luminous flux output is higher at 8300 lm. Maximum current is lower at 1.35A. Packaging differs (Bulk vs. Tray). This part provides direct electrical and mechanical compatibility but does not resolve obsolescence concerns due to matching Obsolete status.

Selection Basis:

For applications requiring long-term supply assurance and active product support, SI-B8V463B20WW is the primary substitute. Mechanical form factor (height reduction from 5.50 mm to 3.70 mm) must be verified for compatibility with existing mechanical assemblies. For applications requiring immediate replacement with minimal design modification, SI-B8V522B2CUS provides closer electrical and dimensional matching, though obsolescence status remains unchanged.

Frequently Asked Questions (FAQ)

Q: Can SI-B8V463B20WW be used as a direct replacement for SI-B8V521B2CUS?

A: SI-B8V463B20WW meets all critical substitution criteria: identical physical dimensions (1120 mm × 18 mm), color temperature (3000K), CRI (80), lens type (Flat), and base product number (SI-B8). However, the height is reduced from 5.50 mm to 3.70 mm. Mechanical integration must be verified to ensure the reduced height does not create clearance or mounting issues in the existing assembly. Electrical parameters are compatible with standard LED driver circuits designed for 45–50V forward voltage range.

Q: What is the difference between SI-B8V522B2CUS and SI-B8V521B2CUS?

A: Both parts share identical physical dimensions, height (5.50 mm), color temperature (3000K), CRI (80), and lens type (Flat). The SI-B8V522B2CUS has a forward voltage of 46.5V (vs. 48.8V) and test current of 1.12A (identical). Luminous flux is higher at 8300 lm. Maximum current is lower at 1.35A. Packaging differs: SI-B8V522B2CUS is supplied in Bulk format, while SI-B8V521B2CUS is supplied in Tray format. Both are classified as Obsolete.

Q: Why is SI-B8V463B20WW recommended despite the height difference?

A: SI-B8V463B20WW is the only substitute with Active product status, ensuring continued availability and manufacturing support. The 1.80 mm height reduction (from 5.50 mm to 3.70 mm) is a secondary consideration compared to supply chain continuity. Applications with strict mechanical constraints should evaluate SI-B8V522B2CUS as an alternative, though it maintains Obsolete status.

Q: Are all three parts compatible with the same LED driver circuit?

A: All three parts operate within compatible voltage ranges (45–48.8V forward voltage). Driver circuits designed for 48V nominal operation with ±10% tolerance will accommodate all three parts. Current ratings must be verified: SI-B8V521B2CUS and SI-B8V522B2CUS require 1.12A test current; SI-B8V463B20WW requires 1.01A test current. Maximum current ratings differ and should be considered for thermal management design.

Q: What is the impact of the color specification difference in SI-B8V522B2CUS?

A: SI-B8V522B2CUS is specified as White, Cool, while SI-B8V521B2CUS is specified as White, Warm. Both operate at 3000K color temperature. The color descriptor difference may reflect manufacturing generation or binning criteria but does not alter the 3000K CCT specification. Visual appearance should be consistent at the specified 3000K color temperature.

Q: Can packaging format (Tray vs. Bulk) affect substitution decisions?

A: Packaging format affects handling, storage, and logistics but does not impact electrical or optical performance. SI-B8V521B2CUS is supplied in Tray packaging; SI-B8V522B2CUS is supplied in Bulk packaging. Selection should consider inventory management practices and handling requirements for the specific application environment.

Q: What certifications apply to all substitute parts?

A: All three parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, indicating equivalent export control and tariff treatment. Moisture Sensitivity Level (MSL) differs: SI-B8V521B2CUS and SI-B8V463B20WW are Not Applicable; SI-B8V522B2CUS is MSL 1 (Unlimited). Storage and handling requirements should follow the most restrictive MSL specification if parts are used interchangeably in inventory.