SPMWH3228FD5WAPKS4 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAPKS4 is a Samsung Semiconductor LM281BZ cool white LED in 2835 metric package (1113 case). This surface mount LED operates at 3.1V forward voltage with 150mA test current, delivering 67 lumens at 25°C with a color temperature of 6500K and 80 CRI. The part is designated as Not For New Designs, indicating it has been superseded in Samsung's product portfolio. Equivalent substitute parts are available with improved specifications and active product status.

Substiute Parts

SPMWH3228FD5WAPKS4

Samsung Semiconductor, Inc.In Stock: 980SPMWH3228FD5WAPKS4 Datasheet

Current PartRFQ

SPMWH3228FD5WAP0SG

Samsung Semiconductor, Inc.In Stock: 801SPMWH3228FD5WAP0SG Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPKSG

Samsung Semiconductor, Inc.In Stock: 1004SPMWH3228FD5WAPKSG Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAPMSG

Samsung Semiconductor, Inc.In Stock: 938SPMWH3228FD5WAPMSG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of SPMWH3228FD5WAPKS4 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Color: White, Cool
• Color Temperature: 6500K
• Flux @ 25°C, 150mA: 67 lm (65-69 lm range)
• Test Current: 150mA
• Maximum Current: 160mA
• Viewing Angle: 120°
• Package / Case: 1113 (2835 Metric)
• Mounting Type: Surface Mount
• CRI: 80
• Thermal Resistance: 25°C/W
• RoHS Status: RoHS Compliant
• MSL Rating: 2A (4 Weeks)

Allowable Variation:

• Forward Voltage (Typ): 3.0V to 3.1V (minor reduction acceptable within operational tolerance)
• Lumens/Watt: 144-149 lm/W (efficiency variation within specification range)
• Series designation: LM281BZ or LM281BZ+ (product line evolution)
• Product Status: Active status preferred over Not For New Designs

All three substitute parts meet these criteria and are manufactured by Samsung Semiconductor, Inc.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

SPMWH3228FD5WAPKSG and SPMWH3228FD5WAPMSG are the preferred substitutes. Both parts carry Active product status, indicating ongoing manufacturing support and compliance with current Samsung specifications. These parts feature the LM281BZ+ series designation, representing the current generation of this LED family.

Secondary Substitute:

SPMWH3228FD5WAP0SG is also an Active product with equivalent electrical and optical characteristics. All three substitutes deliver improved efficiency (149 lm/W versus 144 lm/W) while maintaining identical luminous flux output.

Voltage Consideration:

The substitute parts operate at 3.0V typical forward voltage compared to 3.1V for the main part. This 0.1V reduction is within normal LED manufacturing tolerance and does not affect circuit compatibility for applications designed to the 2835 package specification.

Compliance:

All substitute parts maintain RoHS compliance and identical MSL ratings, ensuring compatibility with standard surface mount assembly processes and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, or SPMWH3228FD5WAPMSG be used as direct replacements for SPMWH3228FD5WAPKS4?

A: Yes. All three parts are parametric equivalents with identical optical output (67 lm at 6500K), identical current ratings (150mA test, 160mA maximum), identical viewing angle (120°), and identical package dimensions (1113/2835 metric). The forward voltage difference of 0.1V is within standard LED tolerance and does not affect circuit operation.

Q: What is the difference between the three substitute parts?

A: SPMWH3228FD5WAP0SG, SPMWH3228FD5WAPKSG, and SPMWH3228FD5WAPMSG are electrically and optically identical. The differences are in packaging configuration (indicated by the suffix codes) and current inventory levels. Selection should be based on packaging requirements and supplier availability.

Q: Why is the main part marked "Not For New Designs"?

A: This designation indicates that Samsung has transitioned to the LM281BZ+ series (represented by all three substitute parts). For new product development, the LM281BZ+ variants with Active status should be specified to ensure long-term supply continuity and access to manufacturing improvements.

Q: Are the substitute parts compatible with existing PCB designs for SPMWH3228FD5WAPKS4?

A: Yes. The substitute parts share identical package dimensions (0.138" L x 0.110" W, 3.50mm x 2.80mm), identical height (0.030" maximum), and identical thermal resistance (25°C/W). PCB footprints and thermal management designs require no modification.

Q: What is the significance of the 0.1V forward voltage reduction in the substitute parts?

A: The reduction from 3.1V to 3.0V typical represents normal manufacturing variation within the LED product family. For series-connected LED strings, this results in approximately 0.1V lower total voltage drop per LED, which is negligible in most lighting applications and does not require circuit redesign.

Q: Do all parts meet the same environmental and compliance standards?

A: Yes. All parts are RoHS Compliant with identical MSL ratings of 2A (4 Weeks), ensuring compatibility with standard surface mount assembly processes, moisture control requirements, and environmental regulations.

Q: Which substitute part should be selected for maximum availability?

A: SPMWH3228FD5WAPKSG offers the highest current inventory at 905 pieces, followed by SPMWH3228FD5WAPMSG at 867 pieces. Both are suitable for immediate procurement.