LED Module SI-B8V52156CUS Equivalent & Substitute Parts

Part Overview

The SI-B8V52156CUS is a Samsung Semiconductor LED Module classified as an obsolete linear light strip with warm white color temperature (3000K). This component is a LED Lighting COB Engine Module designed for applications requiring high luminous flux output in a compact linear configuration. The product's obsolete status necessitates identification of functionally equivalent substitute components to maintain design continuity and ensure supply chain availability for ongoing production or maintenance requirements.

Substiute Parts

SI-B8V52156CUS

Samsung Semiconductor, Inc.In Stock: 1334SI-B8V52156CUS Datasheet

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SI-B8V52256CUS

Samsung Semiconductor, Inc.In Stock: 986SI-B8V52256CUS Datasheet

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SI-B8V923B20WW

Samsung Semiconductor, Inc.In Stock: 903SI-B8V923B20WW Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SI-B8V52156CUS are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Shared base product number (SI-B8)
• Linear light strip configuration
• 3000K color temperature (warm white)
• Flat lens type
• Compatible physical dimensions (length and width)
• CRI of 80 or higher
• Manufacturer: Samsung Semiconductor, Inc.

Substitution Logic: The SI-B8V52156CUS can be substituted with components that maintain the same configuration, color temperature, and optical characteristics. Variations in luminous flux, forward voltage, and current ratings are acceptable provided the substitute operates within the same electrical envelope or can be accommodated by the application's power supply design.

Two substitute parts meet these criteria:

1. SI-B8V52256CUS – V-Series Gen2 variant with identical physical dimensions and color temperature, representing a direct generational upgrade within the same product family.

2. SI-B8V923B20WW – V Gen3 variant, the most current active product in the SI-B8 family, offering enhanced performance metrics while maintaining core compatibility parameters.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Footprint and Electrical Characteristics):

SI-B8V52256CUS is the preferred substitute when physical dimensions and electrical operating point must remain unchanged. This part maintains the same 560 mm length, 39.80 mm width, and 5.50 mm height as the original SI-B8V52156CUS. Forward voltage (46.5V) and test current (1.12A) are closely matched, requiring minimal or no modification to existing power supply designs. The part is classified as obsolete but remains available in inventory (916 pcs). Packaging differs (Bulk vs. Tray), which may affect procurement and handling procedures.

For Performance Enhancement with Design Modification:

SI-B8V923B20WW represents the current active product generation and offers significant performance improvements: 15140 lm luminous flux (110% increase), 167 lm/W efficiency (26% improvement), and 118° viewing angle specification. However, this substitute requires design consideration due to dimensional differences: the length is doubled (1120 mm), height is reduced (3.70 mm), and current requirements increase (2.02A test current). This part is suitable for applications where the increased length can be accommodated and power supply capacity can be upgraded. Active product status ensures long-term availability and supply chain stability.

Compliance and Certification:

All three parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, confirming regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can SI-B8V52256CUS be used as a direct drop-in replacement for SI-B8V52156CUS?

A: SI-B8V52256CUS maintains identical physical dimensions (560 × 39.80 × 5.50 mm) and similar electrical characteristics (46.5V Vf vs. 48.8V, 1.12A test current). It functions as a direct mechanical and electrical substitute with minimal design modification required. The primary difference is packaging format (Bulk vs. Tray).

Q: What are the key differences between SI-B8V52256CUS and SI-B8V923B20WW?

A: SI-B8V923B20WW is the newer generation (V Gen3 vs. V-Series Gen2) with doubled length (1120 mm vs. 560 mm), reduced height (3.70 mm vs. 5.50 mm), significantly higher luminous flux (15140 lm vs. 8300 lm), and higher current requirements (2.02A vs. 1.12A). It is the only active product among the three options.

Q: Why is SI-B8V923B20WW longer than the original part?

A: The SI-B8V923B20WW achieves higher total luminous flux through increased physical length rather than increased current density. This design approach maintains efficiency (167 lm/W) while providing greater total light output in a single module.

Q: Can I use SI-B8V923B20WW in an application designed for SI-B8V52156CUS?

A: SI-B8V923B20WW can be used if the application design can accommodate the doubled length (1120 mm vs. 560 mm) and the increased current draw (2.02A vs. 1.12A). The reduced height (3.70 mm vs. 5.50 mm) may also require mechanical redesign. The higher luminous flux provides performance benefits but requires corresponding power supply upgrades.

Q: What is the inventory status of these substitute parts?

A: SI-B8V52156CUS: 1246 pcs (Obsolete). SI-B8V52256CUS: 916 pcs (Obsolete). SI-B8V923B20WW: 875 pcs (Active). For long-term supply assurance, SI-B8V923B20WW is recommended despite requiring design modifications.

Q: Are there packaging considerations when switching between these parts?

A: SI-B8V52156CUS and SI-B8V923B20WW are supplied in Tray packaging, while SI-B8V52256CUS is supplied in Bulk packaging. Tray packaging typically provides better protection during storage and handling. Bulk packaging may require additional protective measures during procurement and inventory management.

Q: Do all three parts have the same color rendering index (CRI)?

A: Yes, all three parts specify CRI of 80, ensuring equivalent color rendering performance for lighting applications.