SI-B8T341B2CUS LED Module V Series White Neutral Linear Light Strip 4000K Equivalent & Substitute Parts

Part Overview

The SI-B8T341B2CUS is a Samsung Semiconductor LED Module from the V Series, designed as a white neutral linear light strip with 4000K color temperature. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity. The module features a linear light strip configuration with flat lens optics, rated at 700mA test current and 48V forward voltage, delivering 4920 lumens at 146 lm/W efficiency. Due to its obsolete status, equivalent alternatives from the active product portfolio or compatible generation variants are necessary for new designs and production continuity.

Substiute Parts

SI-B8T341B2CUS

Samsung Semiconductor, Inc.In Stock: 1251SI-B8T341B2CUS Datasheet

Current PartRFQ

SI-B8T243B20WW

Samsung Semiconductor, Inc.In Stock: 1023SI-B8T243B20WW Datasheet

SimilarRFQ

SI-B8T342B2CUS

Samsung Semiconductor, Inc.In Stock: 1252SI-B8T342B2CUS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI-B8T341B2CUS is determined by strict alignment across the following critical parameters:

Form Factor & Configuration Requirements:

• Configuration must be Linear Light Strip
• Lens Type must be Flat
• Physical dimensions (length × width) must be 1120.00 mm × 18.00 mm
• Base Product Number must be SI-B8 (same product family)

Optical Specifications:

• Color must be White, Neutral
• CCT must be 4000K
• CRI must be 80 or higher

Electrical Interface Parameters:

• Forward voltage (Vf) must be compatible with 48V nominal system design (acceptable range: 44.4V to 48V based on available alternatives)
• Current ratings must support 700mA test current operation

Identified Substitute Parts:

1. SI-B8T342B2CUS — V-Series Gen2, Obsolete status, same packaging (Bulk), identical dimensions, matching electrical and optical specifications with higher luminous flux (5620 lm) and improved efficiency (173 lm/W)

2. SI-B8T243B20WW — V Gen3, Active status, Tray packaging, identical dimensions, matching optical specifications with lower forward voltage (44.4V), reduced test current (530mA), and superior efficiency (187 lm/W)

All three parts share the SI-B8 base product number, confirming family compatibility and interchangeability within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Product Replacement:

The SI-B8T243B20WW (V Gen3) is the primary recommended substitute. This part carries Active product status, ensuring long-term availability and supply chain stability. While forward voltage is reduced to 44.4V (3.6V lower than the original 48V), this falls within acceptable tolerance for most 48V-class LED driver circuits. The test current is reduced to 530mA, requiring driver recalibration but delivering superior efficiency at 187 lm/W. The reduced height (3.70 mm versus 5.50 mm) may require mechanical redesign of mounting fixtures but provides form factor optimization. Tray packaging is standard for active production components.

For Interim Compatibility:

The SI-B8T342B2CUS (V-Series Gen2) maintains identical electrical test current (700mA) and mechanical height (5.50 mm), minimizing design modification requirements. Forward voltage of 46.4V is closer to the original 48V specification. However, this part also carries Obsolete status, limiting its long-term viability as a permanent solution. This option is suitable only for short-term production runs or bridge applications pending full migration to the V Gen3 platform.

Compliance & 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-B8T243B20WW be used as a direct drop-in replacement for SI-B8T341B2CUS?

A: SI-B8T243B20WW is electrically and optically compatible but requires driver circuit adjustment. The forward voltage is 3.6V lower (44.4V vs. 48V), and test current is reduced to 530mA. The mechanical height is reduced by 1.8 mm (3.70 mm vs. 5.50 mm). These differences necessitate recalibration of the LED driver and potential modification of mechanical mounting interfaces. The part is not a true drop-in replacement without circuit and mechanical redesign.

Q: What is the difference between SI-B8T341B2CUS and SI-B8T342B2CUS?

A: Both are V-Series LED modules with identical physical dimensions (1120 × 18 × 5.50 mm), color temperature (4000K), and test current (700mA). The primary difference is luminous flux: SI-B8T342B2CUS delivers 5620 lm compared to 4920 lm for SI-B8T341B2CUS, representing a 14% increase in light output. Forward voltage is slightly lower (46.4V vs. 48V), and maximum current is reduced (0.9A vs. 1.08A). Both parts are obsolete.

Q: Why is SI-B8T243B20WW supplied in Tray packaging instead of Bulk?

A: Tray packaging is the standard supply format for active production components from Samsung Semiconductor. The V Gen3 series, being an active product line, uses Tray packaging as part of standard manufacturing and logistics protocols. Bulk packaging is associated with legacy or phase-out product lines. If Bulk packaging is required, contact the supplier regarding special order availability.

Q: Are all three parts compatible with the same 48V LED driver circuit?

A: No. SI-B8T341B2CUS and SI-B8T342B2CUS are designed for 48V nominal operation (Vf = 48V and 46.4V respectively). SI-B8T243B20WW operates at 44.4V nominal, requiring a different driver circuit or reconfiguration of the existing driver. Forward voltage differences of this magnitude cannot be accommodated by simple current limiting adjustments; the power supply or driver topology must be redesigned.

Q: What is the significance of the 3-Step MacAdam Ellipse specification on SI-B8T341B2CUS?

A: The 3-Step MacAdam Ellipse notation indicates color temperature tolerance. This specification is not provided for the substitute parts (SI-B8T342B2CUS and SI-B8T243B20WW), but all three parts maintain 4000K nominal CCT and 80 CRI, confirming optical compatibility for neutral white lighting applications. The absence of MacAdam notation on substitute parts does not indicate inferior color consistency; it reflects different specification documentation practices across product generations.

Q: Can SI-B8T243B20WW be used in applications requiring 1.08A maximum current?

A: No. SI-B8T243B20WW has a maximum current rating of 1.8A, which is higher than the original 1.08A specification. However, the test current is 530mA, significantly lower than the original 700mA. Applications designed for 700mA operation must be recalibrated to 530mA, which will reduce light output proportionally. The higher maximum current rating does not allow operation at the original 700mA without driver modification.

Q: Are there any moisture sensitivity or storage requirement differences between these parts?

A: SI-B8T341B2CUS and SI-B8T243B20WW are both classified as MSL Not Applicable, indicating no moisture sensitivity restrictions. SI-B8T342B2CUS is classified as MSL 1 (Unlimited), also indicating no moisture sensitivity. All three parts can be stored and handled under standard industrial conditions without special humidity control or baking procedures.

Q: What is the viewing angle difference between SI-B8T341B2CUS (120°) and SI-B8T243B20WW (118°)?

A: The 2° difference in viewing angle is negligible for practical lighting applications. Both specifications indicate wide-angle light distribution suitable for general illumination. SI-B8T342B2CUS does not specify viewing angle, but the flat lens design and identical physical configuration suggest comparable optical distribution. This parameter difference does not affect substitution eligibility.