LED COB SPHWW1HDNB27YHT2B3 Equivalent & Substitute Parts

Part Overview

The SPHWW1HDNB27YHT2B3 is a Chip On Board (COB) LED lighting engine manufactured by Samsung Semiconductor, Inc. This component is classified as an LC019B Gen3 white neutral square configuration operating at 4000K color temperature. The part is currently marked as obsolete, necessitating identification of functionally equivalent substitute components for ongoing design and procurement requirements. Substitute parts must maintain compatibility across optical, electrical, and mechanical parameters to ensure system-level performance equivalence.

Substiute Parts

SPHWW1HDNB27YHT2B3

Samsung Semiconductor, Inc.In Stock: 715SPHWW1HDNB27YHT2B3 Datasheet

Current PartRFQ

SPHWHAHDNG28YZT2D2

Samsung Semiconductor, Inc.In Stock: 858SPHWHAHDNG28YZT2D2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SPHWW1HDNB27YHT2B3 is based on strict alignment of the following critical parameters:

Critical Matching Parameters:

• Type: Chip On Board (COB) configuration
• Color: White, Neutral specification
• CCT: 4000K 2-Step MacAdam Ellipse
• Configuration: Square geometry
• Lens Type: Flat optical surface

High-Priority Electrical Parameters:

• Forward Voltage (Vf) range compatibility
• Test current and maximum current ratings
• Luminous flux output within acceptable tolerance

High-Priority Mechanical Parameters:

• Overall footprint dimensions (length × width)
• Height clearance
• Light Emitting Surface diameter

The substitute part SPHWHAHDNG28YZT2D2 satisfies the critical parameter requirements while demonstrating variations in electrical performance characteristics and physical dimensions. These variations are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The SPHWHAHDNG28YZT2D2 is a valid substitute for the obsolete SPHWW1HDNB27YHT2B3 based on matching critical optical and thermal parameters. Both components are manufactured by Samsung Semiconductor, Inc., share identical CCT specifications (4000K), color classification (White, Neutral), and optical configuration (Square, Flat lens, 115° viewing angle).

Key Considerations:

1. Product Status: The substitute part is classified as Active, ensuring ongoing availability and supply chain continuity compared to the obsolete main part.

2. Electrical Performance Variance: The substitute exhibits lower efficiency (112 lm/W vs. 134 lm/W) but higher maximum current rating (1.84 A vs. 980 mA). Forward voltage is slightly lower (34.6 V vs. 35.5 V), requiring verification of driver circuit compatibility.

3. Mechanical Compatibility: The substitute footprint is larger (19.00 × 19.00 mm vs. 17.00 × 17.00 mm) with a proportionally larger Light Emitting Surface (14.50 mm Dia vs. 12.40 mm Dia). Height remains identical at 1.50 mm. PCB layout and thermal management design must accommodate the increased footprint.

4. Optical Output: The substitute delivers higher luminous flux (2786 lm vs. 2578 lm) at different test conditions (720 mA @ 85°C vs. 540 mA @ 25°C), indicating enhanced light output capability.

5. Compliance: Both components share identical export control (EAR99) and tariff classifications (HTSUS 8541.41.0000), maintaining regulatory compliance.

Selection Criteria:

• Use SPHWHAHDNG28YZT2D2 when PCB layout can accommodate the larger 19 mm × 19 mm footprint
• Verify driver circuit operates within the substitute's forward voltage range (34.6 V)
• Confirm thermal management design supports the higher maximum current rating
• Accept the luminous flux increase as a system-level benefit

Frequently Asked Questions (FAQ)

Q1: Why is the SPHWW1HDNB27YHT2B3 marked as obsolete?

A: The SPHWW1HDNB27YHT2B3 is part of the LC019B Gen3 series, which has reached end-of-life status. Samsung Semiconductor has transitioned to newer COB D Gen2 series components. The substitute SPHWHAHDNG28YZT2D2 represents the active replacement platform.

Q2: Can the SPHWHAHDNG28YZT2D2 be used as a direct drop-in replacement?

A: No. While both components share identical color temperature (4000K), configuration (Square), and optical angle (115°), the substitute has a larger footprint (19 mm × 19 mm vs. 17 mm × 17 mm). PCB layout modifications are required. Additionally, the forward voltage is 0.9 V lower, requiring driver circuit verification.

Q3: What is the impact of the larger Light Emitting Surface (LES) diameter?

A: The substitute's LES diameter is 14.50 mm compared to 12.40 mm on the main part. This 2.10 mm increase affects optical beam distribution and thermal characteristics. Optical design and thermal modeling must be re-evaluated for the specific application.

Q4: How do the efficiency ratings compare?

A: The main part delivers 134 lm/W at 540 mA @ 25°C, while the substitute delivers 112 lm/W at 720 mA @ 85°C. The main part is more efficient under its test conditions. However, the substitute produces higher absolute luminous flux (2786 lm vs. 2578 lm), which may offset efficiency differences in system-level performance.

Q5: Are there any supply chain advantages to using the substitute?

A: Yes. The SPHWHAHDNG28YZT2D2 is classified as Active with 788 pieces in stock, compared to the obsolete main part with 670 pieces. The active status ensures long-term availability and supply continuity.

Q6: What packaging format is the substitute supplied in?

A: The SPHWHAHDNG28YZT2D2 is supplied in Tray packaging. Verify compatibility with your assembly and handling processes.

Q7: Do both parts share the same export classification?

A: Yes. Both components are classified as EAR99 for export control purposes and share the identical HTSUS tariff code (8541.41.0000), maintaining regulatory compliance across supply chain operations.

Q8: Is CRI (Color Rendering Index) data available for the substitute?

A: CRI data is not provided for the SPHWHAHDNG28YZT2D2. The main part specifies CRI 90. Contact Samsung Semiconductor for CRI specifications of the substitute if this parameter is critical for your application.

Q9: What are the test condition differences between the two parts?

A: The main part is tested at 540 mA @ 25°C, while the substitute is tested at 720 mA @ 85°C. These different test conditions affect direct performance comparison. Normalized performance data at identical conditions would be required for precise equivalence determination.

Q10: Can the substitute handle higher current than the main part?

A: Yes. The substitute's maximum current rating is 1.84 A compared to 980 mA for the main part. However, higher current operation generates increased thermal load. Thermal management design must be verified to maintain safe junction temperatures.