LED Module SI-B8UZ91B2CUS Equivalent & Substitute Parts

Part Overview

The SI-B8UZ91B2CUS is a linear LED light strip module manufactured by Samsung Semiconductor, Inc., classified as an LED Module within the LT-VB24F series. This component is designed for warm white lighting applications with a correlated color temperature (CCT) of 3500K and delivers 14976 lumens at nominal operating conditions.

The SI-B8UZ91B2CUS is currently listed with an Obsolete product status. Due to this obsolescence, identifying functionally equivalent substitute components is necessary to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Substiute Parts

SI-B8UZ91B2CUS

Samsung Semiconductor, Inc.In Stock: 863SI-B8UZ91B2CUS Datasheet

Current PartRFQ

SI-B8U923B20WW

Samsung Semiconductor, Inc.In Stock: 1025SI-B8U923B20WW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SI-B8UZ91B2CUS is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Color and CCT: Both parts must deliver White, Warm light at 3500K to maintain color consistency in end-use applications
• Configuration: Both parts must be Linear Light Strip modules to ensure mechanical and optical compatibility
• Base Product Number: Both parts share the SI-B8 base designation, indicating compatibility within the Samsung LED module platform
• CRI (Color Rendering Index): Both parts maintain CRI of 80, ensuring equivalent color rendering performance
• Lens Type: Both parts feature a Flat lens configuration for consistent light distribution characteristics
• Compliance and Certifications: Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, ensuring regulatory equivalence

Secondary Compatibility Parameters:

• Luminous flux output within acceptable operational ranges
• Forward voltage and current ratings compatible with existing driver circuits
• Physical dimensions permitting direct mechanical substitution
• Moisture Sensitivity Level (MSL) classification

The substitute part SI-B8U923B20WW meets all primary substitution criteria and is classified as Active product status, making it a direct functional equivalent for the obsolete SI-B8UZ91B2CUS.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SI-B8U923B20WW

The SI-B8U923B20WW is the direct functional equivalent for the obsolete SI-B8UZ91B2CUS. Selection of this substitute part is based on the following engineering factors:

Product Status Alignment: The SI-B8U923B20WW carries Active product status, ensuring ongoing manufacturing availability, supply chain continuity, and long-term support from Samsung Semiconductor, Inc. This contrasts with the Obsolete status of the SI-B8UZ91B2CUS, which presents supply risk and potential discontinuation of technical support.

Regulatory and Compliance Equivalence: Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, confirming equivalent export control and tariff treatment. No additional compliance documentation or re-certification is required when substituting the SI-B8U923B20WW for the SI-B8UZ91B2CUS.

Optical and Thermal Performance: Both parts deliver identical color specifications (White, Warm at 3500K) and CRI (80), ensuring equivalent color rendering in end-use applications. Test temperature conditions are identical at 65°C, confirming thermal performance equivalence.

Electrical Compatibility: The SI-B8U923B20WW operates at a lower forward voltage (45V typical versus 48.8V) and reduced maximum current (2.02A versus 3.24A), resulting in improved power efficiency (169 lm/W versus 137 lm/W). Existing driver circuits designed for the SI-B8UZ91B2CUS will operate the SI-B8U923B20WW within safe operating margins.

Mechanical Compatibility: The SI-B8U923B20WW maintains identical width (39.80mm) and reduced height (3.70mm versus 5.50mm), enabling direct mechanical substitution in most applications. The length difference (1120mm versus 1200mm) is 80mm shorter, which may require mechanical accommodation in length-critical designs.

Luminous Output: The SI-B8U923B20WW delivers 15360 lumens at test conditions, representing a 2.6% increase over the SI-B8UZ91B2CUS (14976 lumens), while operating at lower current and voltage. This performance improvement is attributable to the V Series Gen3 platform advancement.

Frequently Asked Questions (FAQ)

Q1: Can the SI-B8U923B20WW be used as a direct drop-in replacement for the SI-B8UZ91B2CUS?

A: The SI-B8U923B20WW is functionally equivalent and shares the same color (White, Warm), CCT (3500K), CRI (80), configuration (Linear Light Strip), and lens type (Flat). However, the SI-B8U923B20WW is 80mm shorter in length (1120mm versus 1200mm) and 1.8mm lower in height (3.70mm versus 5.50mm). Mechanical accommodation may be required in length-critical applications. Electrical compatibility is confirmed, as the substitute operates at lower voltage and current within safe driver operating ranges.

Q2: What are the key differences in electrical performance between these two parts?

A: The SI-B8U923B20WW operates at 45V forward voltage (versus 48.8V) and 2.02A maximum current (versus 3.24A), resulting in lower power consumption. The substitute delivers improved luminous efficacy at 169 lm/W compared to 137 lm/W for the original part. Luminous flux output is comparable: 15360 lumens (substitute) versus 14976 lumens (original), representing a 2.6% increase.

Q3: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. No additional compliance documentation, re-certification, or regulatory review is required when substituting the SI-B8U923B20WW for the SI-B8UZ91B2CUS.

Q4: Why is the SI-B8UZ91B2CUS listed as Obsolete?

A: The SI-B8UZ91B2CUS belongs to the LT-VB24F series, which has been superseded by the V Series Gen3 platform represented by the SI-B8U923B20WW. Samsung Semiconductor, Inc. has transitioned production to the newer generation, resulting in the Obsolete classification for the original part.

Q5: What is the packaging difference between these parts?

A: The SI-B8UZ91B2CUS packaging is not specified in the provided data. The SI-B8U923B20WW is supplied in Tray packaging. Confirm packaging requirements with your procurement or supply chain team to ensure compatibility with your assembly processes.

Q6: Can I use the SI-B8U923B20WW in applications requiring the exact 1200mm length of the SI-B8UZ91B2CUS?

A: The SI-B8U923B20WW is 80mm shorter (1120mm versus 1200mm). If your application requires the full 1200mm length, mechanical modification or alternative sourcing may be necessary. Consult your design team to determine if the shorter length is acceptable or if design changes are required.

Q7: What is the viewing angle specification for the SI-B8U923B20WW?

A: The SI-B8U923B20WW has a specified viewing angle of 118°. The viewing angle for the SI-B8UZ91B2CUS is not provided in the available data. If viewing angle is a critical parameter for your application, confirm that 118° meets your optical requirements.

Q8: Are both parts suitable for the same operating temperature range?

A: Both parts are tested at 65°C. The provided data does not specify the full operating temperature range for either part. Consult Samsung Semiconductor, Inc. technical documentation for complete thermal operating specifications if extended temperature operation is required.