LED COB SPHWW1HDNC27YHT3B3 Equivalent & Substitute Parts

Part Overview

The SPHWW1HDNC27YHT3B3 is a Chip On Board (COB) LED lighting engine manufactured by Samsung Semiconductor, Inc. This component is classified as an LC026B Gen3 series white, neutral white square configuration operating at 4000K color temperature with a 90 CRI rating. The part is currently marked as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support, production continuity, and system integration in LED lighting applications requiring neutral white illumination at 4000K.

Substiute Parts

SPHWW1HDNC27YHT3B3

Samsung Semiconductor, Inc.In Stock: 1124SPHWW1HDNC27YHT3B3 Datasheet

Current PartRFQ

SPHWHAHDNK28YZT3D2

Samsung Semiconductor, Inc.In Stock: 1123SPHWHAHDNK28YZT3D2 Datasheet

SimilarRFQ

CHM-18-40-90-36-AA00-F2-3

Luminus Devices Inc.In Stock: 835CHM-18-40-90-36-AA00-F2-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SPHWW1HDNC27YHT3B3 is determined by alignment across the following critical parameters:

Color Temperature & Chromaticity: All substitute parts operate at 4000K with 3-Step MacAdam Ellipse specification, matching the neutral white output of the main part.

Configuration & Form Factor: All candidates maintain square configuration with flat lens type, ensuring mechanical compatibility in existing optical and thermal designs.

Color Rendering Index (CRI): The main part specifies CRI 90. Substitute CHM-18-40-90-36-AA00-F2-3 maintains CRI 90 specification. Substitute SPHWHAHDNK28YZT3D2 does not specify CRI in provided data.

Electrical Characteristics: Forward voltage (Vf) ranges from 34.6V to 35.5V across all parts, indicating compatible driver circuit requirements. Maximum current ratings vary (1.3A to 2.76A), affecting thermal and power management considerations.

Luminous Flux Performance: The main part delivers 3488lm at 720mA/25°C. Substitute parts deliver higher flux outputs (4241lm to 4255lm) at elevated test temperatures (85°C) and higher test currents (1.08A to 1.2A), indicating improved efficiency in newer generations.

Optical Properties: All parts maintain 115° to 120° viewing angle range and flat lens configuration, preserving beam distribution characteristics.

Packaging & Handling: Moisture sensitivity levels differ (MSL 2A vs. MSL 1), affecting storage and assembly protocols.

Parameter Comparison

Engineering Selection Recommendations

SPHWHAHDNK28YZT3D2 (Samsung COB D Gen2):

This substitute is an active Samsung product from the COB D Gen2 series. It maintains identical color temperature (4000K), configuration (square), and optical properties (115° viewing angle, flat lens). Forward voltage (34.6V) is compatible with the main part's 35.5V specification. However, this substitute features a larger footprint (28.00mm x 28.00mm versus 21.50mm x 21.50mm) and larger LES diameter (22.00mm versus 17.00mm), requiring mechanical redesign of optical and thermal interfaces. CRI specification is not provided in available data. Maximum current rating (2.76A) exceeds the main part (1.3A), enabling higher flux output (4241lm) at elevated test conditions (85°C, 1.08A). Selection of this substitute requires verification of mechanical compatibility in existing fixture designs.

CHM-18-40-90-36-AA00-F2-3 (Luminus CHM-18):

This substitute is an active Luminus Devices product from the CHM-18 series. It maintains identical color temperature (4000K), configuration (square), CRI (90), and footprint dimensions (21.50mm x 21.50mm) as the main part, enabling direct mechanical compatibility. Forward voltage (35V) is equivalent to the main part (35.5V). Viewing angle (120°) exceeds the main part (115°), providing broader beam distribution. Height (1.37mm) is slightly reduced compared to the main part (1.50mm). LES diameter (17.50mm) is marginally larger than the main part (17.00mm). Maximum current (2.4A) exceeds the main part (1.3A), delivering higher flux output (4255lm) at elevated test conditions (85°C, 1.2A). Moisture sensitivity (MSL 1, Unlimited) is superior to the main part (MSL 2A, 4 Weeks), reducing handling and storage constraints. RoHS3 compliance and REACH unaffected status are documented. This substitute provides optimal compatibility for direct replacement applications.

Frequently Asked Questions (FAQ)

Q: Why is the SPHWW1HDNC27YHT3B3 marked as obsolete?

A: The SPHWW1HDNC27YHT3B3 is classified as obsolete by Samsung Semiconductor, Inc., indicating end-of-life status and discontinuation of production. Substitute parts from active product lines must be identified for ongoing design support and production continuity.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: (1) Color temperature at 4000K with 3-Step MacAdam Ellipse chromaticity; (2) Square configuration with flat lens type; (3) Forward voltage within the 34.6V to 35.5V range; (4) CRI 90 specification where applicable; (5) Viewing angle between 115° and 120°; (6) Mechanical footprint and height compatibility with existing optical and thermal designs.

Q: Can SPHWHAHDNK28YZT3D2 be used as a direct replacement?

A: SPHWHAHDNK28YZT3D2 matches color temperature, configuration, and electrical characteristics but features a larger footprint (28.00mm x 28.00mm versus 21.50mm x 21.50mm) and larger LES diameter (22.00mm versus 17.00mm). Direct replacement requires mechanical redesign of optical and thermal interfaces. CRI specification is not provided in available data.

Q: Can CHM-18-40-90-36-AA00-F2-3 be used as a direct replacement?

A: CHM-18-40-90-36-AA00-F2-3 maintains identical footprint dimensions (21.50mm x 21.50mm), color temperature (4000K), CRI (90), and forward voltage (35V) as the main part. Height is marginally reduced (1.37mm versus 1.50mm), and LES diameter is slightly larger (17.50mm versus 17.00mm). This substitute provides optimal mechanical and electrical compatibility for direct replacement in existing designs.

Q: How do luminous flux outputs compare across parts?

A: The main part delivers 3488lm at 720mA and 25°C test conditions. Substitute SPHWHAHDNK28YZT3D2 delivers 4241lm at 1.08A and 85°C. Substitute CHM-18-40-90-36-AA00-F2-3 delivers 4255lm at 1.2A and 85°C. Higher flux outputs in substitutes reflect improved efficiency in newer generation COB technology. Flux comparison must account for different test currents and temperatures.

Q: What are the moisture sensitivity differences?

A: The main part specifies MSL 2A (4 Weeks), requiring controlled storage and assembly conditions. Substitute CHM-18-40-90-36-AA00-F2-3 specifies MSL 1 (Unlimited), eliminating moisture sensitivity constraints and reducing handling complexity. Substitute SPHWHAHDNK28YZT3D2 does not specify MSL in available data.

Q: Are all parts compliant with export and trade regulations?

A: All parts are classified under ECCN EAR99 and HTSUS 8541.41.0000. Substitute CHM-18-40-90-36-AA00-F2-3 is documented as RoHS3 compliant and REACH unaffected. Regulatory compliance documentation should be verified with manufacturers for specific applications and jurisdictions.

Q: What is the maximum current rating difference between parts?

A: The main part specifies maximum current of 1.3A. Substitute SPHWHAHDNK28YZT3D2 specifies 2.76A maximum current. Substitute CHM-18-40-90-36-AA00-F2-3 specifies 2.4A maximum current. Higher maximum current ratings in substitutes enable operation at elevated power levels, requiring thermal management verification in existing driver circuits.

Q: How do viewing angles differ?

A: The main part specifies 115° viewing angle. Substitute SPHWHAHDNK28YZT3D2 maintains 115° viewing angle. Substitute CHM-18-40-90-36-AA00-F2-3 provides 120° viewing angle, offering broader beam distribution. Viewing angle differences affect optical system design and light distribution characteristics.