LED LM281A COOL WHITE 6500K 2835 (SPMWHT228FD5BAP0S0) - Equivalent & Substitute Parts

Part Overview

The SPMWHT228FD5BAP0S0 is a surface-mount LED lighting component manufactured by Samsung Semiconductor, Inc., featuring cool white 6500K color temperature in a 2835 package format. This component delivers 61 lumens at 25°C under 150mA test current with a forward voltage of 3.15V and 120° viewing angle. The product is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

SPMWHT228FD5BAP0S0

Samsung Semiconductor, Inc.In Stock: 873SPMWHT228FD5BAP0S0 Datasheet

Current PartRFQ

EAHC2835WD6

Everlight Electronics Co LtdIn Stock: 17869EAHC2835WD6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWHT228FD5BAP0S0 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Color and correlated color temperature (CCT): White, Cool 6500K
• Luminous flux range at 25°C under 150mA test current: 56–66 lm
• Forward voltage (Vf): 3.1–3.15V nominal
• Test current: 150mA
• Viewing angle: 120°
• Mounting type: Surface Mount
• Package format: 2835 or equivalent metric 1411 (3528)
• Thermal resistance: ≤24°C/W
• RoHS compliance status

Substitute Identified: The EAHC2835WD6 manufactured by Everlight Electronics Co Ltd meets all primary substitution criteria. This part operates at 6500K cool white, delivers 66 lumens at 25°C under 150mA test current (within the 56–66 lm specification range), maintains 3.1V forward voltage, and is housed in a 2-PLCC package (1411/3528 metric equivalent). Both parts are surface-mount components with 120° viewing angles and compatible thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: EAHC2835WD6 (Everlight Electronics Co Ltd)

The EAHC2835WD6 is the qualified substitute for the obsolete SPMWHT228FD5BAP0S0. Selection is based on the following engineering factors:

1. Product Status: The EAHC2835WD6 maintains active product status, ensuring long-term availability and supply chain continuity compared to the obsolete Samsung component.

2. Electrical Compatibility: Both parts operate at identical test current (150mA) and deliver luminous flux within overlapping specification ranges (61 lm vs. 66 lm at 25°C). Forward voltage differential (3.15V vs. 3.1V) is within acceptable circuit tolerance for standard LED driver designs.

3. Compliance Certifications: The EAHC2835WD6 carries ROHS3 compliance, meeting current regulatory requirements. The original part holds RoHS Compliant status. Both components are classified under ECCN EAR99 and HTSUS 8541.41.0000.

4. Thermal Performance: The substitute part exhibits superior thermal resistance (21°C/W vs. 24°C/W), providing improved thermal management in high-density applications.

5. Optical Characteristics: The EAHC2835WD6 delivers enhanced color rendering (CRI 90 vs. CRI 80) and higher luminous efficacy (142 lm/W vs. 129 lm/W), offering performance advantages in color-critical lighting applications.

6. Mechanical Compatibility: Package dimensions (3.50 × 2.80 mm vs. 3.32 × 2.80 mm) and height (0.85 mm vs. 0.75 mm) are compatible with standard 2835 footprints used in surface-mount PCB designs. Moisture sensitivity level (MSL 3 vs. MSL 2A) requires standard handling protocols.

Frequently Asked Questions (FAQ)

Q1: Why is the SPMWHT228FD5BAP0S0 classified as obsolete?

A: The SPMWHT228FD5BAP0S0 is marked as obsolete by Samsung Semiconductor, Inc., indicating discontinued manufacturing and end-of-life status. The EAHC2835WD6 from Everlight Electronics maintains active product status and serves as the functional equivalent for new designs and legacy system support.

Q2: Are the package dimensions identical between the main part and substitute?

A: The packages are compatible but not identical. The SPMWHT228FD5BAP0S0 measures 3.32 × 2.80 mm with 0.75 mm seated height, while the EAHC2835WD6 measures 3.50 × 2.80 mm with 0.85 mm seated height. Both conform to the 2835 package standard and are compatible with standard surface-mount PCB footprints. The 0.18 mm length difference and 0.10 mm height difference fall within typical PCB design tolerances.

Q3: What is the luminous flux difference between these parts?

A: The SPMWHT228FD5BAP0S0 delivers 61 lumens at 25°C under 150mA test current (specification range 56–66 lm). The EAHC2835WD6 delivers 66 lumens under identical test conditions (specification range 55–76 lm). The 5-lumen difference represents approximately 8% higher output from the substitute part, which remains within acceptable tolerance for most lighting applications.

Q4: How do the forward voltages compare?

A: The SPMWHT228FD5BAP0S0 specifies 3.15V typical forward voltage, while the EAHC2835WD6 specifies 3.1V. This 0.05V difference is negligible in standard LED driver circuits and does not require circuit redesign. Both parts operate within the same voltage class for constant-current LED applications.

Q5: What is the significance of the CRI difference?

A: The SPMWHT228FD5BAP0S0 has CRI 80, while the EAHC2835WD6 has CRI 90. CRI measures color rendering accuracy on a scale of 0–100. The substitute part's higher CRI (90) indicates superior color fidelity and is advantageous for applications requiring accurate color representation, such as retail display lighting or photography. For general illumination applications, both CRI values are acceptable.

Q6: Are there moisture sensitivity considerations?

A: The SPMWHT228FD5BAP0S0 carries MSL 2A (4 weeks), while the EAHC2835WD6 carries MSL 3 (168 hours). MSL 3 requires more stringent moisture control during storage and handling. Both parts require standard moisture-sensitive device (MSD) handling protocols, including dry storage and controlled reflow conditions. The substitute part's MSL 3 rating is standard for modern surface-mount LEDs.

Q7: Can the EAHC2835WD6 be used as a direct drop-in replacement?

A: The EAHC2835WD6 is functionally equivalent and electrically compatible for direct substitution in applications designed for the SPMWHT228FD5BAP0S0. PCB footprints must accommodate the slightly larger package dimensions (3.50 × 2.80 mm vs. 3.32 × 2.80 mm). Standard 2835 footprints provide adequate clearance. No circuit modifications are required.

Q8: What is the thermal resistance significance?

A: Thermal resistance (Rθ) measures heat dissipation efficiency. The EAHC2835WD6 exhibits 21°C/W compared to 24°C/W for the original part, indicating superior thermal performance. Lower thermal resistance reduces junction temperature under identical operating conditions, extending component lifespan and improving reliability in high-ambient-temperature environments.

Q9: Are both parts RoHS compliant?

A: The SPMWHT228FD5BAP0S0 is RoHS Compliant. The EAHC2835WD6 is ROHS3 Compliant, representing current regulatory compliance standards. Both parts meet hazardous substance restrictions and are suitable for applications requiring RoHS certification.

Q10: What is the lumens-per-watt advantage of the substitute?

A: The SPMWHT228FD5BAP0S0 delivers 129 lm/W, while the EAHC2835WD6 delivers 142 lm/W at their respective test currents. The substitute part's 10% higher luminous efficacy indicates improved energy efficiency, resulting in lower power consumption for equivalent light output or higher light output for equivalent power consumption.