SPMWH3228FD5WAT0S2 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAT0S2 is a Samsung Semiconductor LM281BZ neutral white LED in 2835 metric package format, rated for 4000K color temperature with 150mA nominal current and 3.1V forward voltage. This component is classified as Not For New Designs, indicating it has reached end-of-life status in Samsung's product portfolio. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design transitions to active product lines.

Substiute Parts

SPMWH3228FD5WAT0S2

Samsung Semiconductor, Inc.In Stock: 742SPMWH3228FD5WAT0S2 Datasheet

Current PartRFQ

SPMWH3228FD5WAT0SC

Samsung Semiconductor, Inc.In Stock: 1031SPMWH3228FD5WAT0SC Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WATKSC

Samsung Semiconductor, Inc.In Stock: 1205SPMWH3228FD5WATKSC Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WATMSC

Samsung Semiconductor, Inc.In Stock: 1033SPMWH3228FD5WATMSC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPMWH3228FD5WAT0S2 are identified based on strict parametric equivalence across the following critical criteria:

Matching Parameters:

• Color: White, Neutral
• CCT: 4000K
• Flux @ 25°C, 150mA: 59lm (57–61lm range)
• Current - Test: 150mA
• Current - Max: 160mA
• Viewing Angle: 120°
• Package / Case: 1113 (2835 Metric)
• Physical Dimensions: 3.50mm × 2.80mm
• Height - Seated (Max): 0.75mm
• CRI: 80
• Thermal Resistance: 25°C/W
• RoHS Status: RoHS Compliant
• MSL: 2A (4 Weeks)

Allowable Variation:

• Forward Voltage (Vf): The main part specifies 3.1V typical. Substitute parts rated at 3.0V typical represent a 0.1V reduction, which falls within acceptable tolerance for LED forward voltage drift across manufacturing batches and thermal operating ranges.
• Lumens/Watt: Substitute parts rated at 131 lm/W versus the main part at 127 lm/W represent improved efficiency while maintaining identical lumen output at test current.
• Product Status: Substitute parts are classified as Active, providing ongoing availability and manufacturing support.

All three substitute parts meet these criteria and are direct parametric equivalents suitable for replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The three substitute parts—SPMWH3228FD5WAT0SC, SPMWH3228FD5WATKSC, and SPMWH3228FD5WATMSC—are direct parametric equivalents to the SPMWH3228FD5WAT0S2 and are suitable for replacement in applications requiring neutral white 4000K LED lighting at 150mA nominal current in 2835 metric package format.

Compliance and Certification: All substitute parts maintain RoHS compliance and identical moisture sensitivity levels (MSL 2A, 4 Weeks), ensuring compatibility with existing manufacturing and storage protocols. The transition from LM281BZ to LM281BZ+ series represents an active product line continuation with enhanced efficiency (131 lm/W versus 127 lm/W) while maintaining identical optical and thermal characteristics.

Forward Voltage Consideration: The 0.1V reduction in typical forward voltage (3.0V versus 3.1V) in substitute parts reflects normal manufacturing tolerance ranges for LED components and does not impact circuit design or thermal management. Existing current-limiting resistor or driver circuits designed for the main part will operate within specification with the substitute parts.

Availability and Production Support: The substitute parts offer significantly higher inventory levels (991–1165 units) compared to the main part (728 units) and are classified as Active products, providing long-term manufacturing support and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SPMWH3228FD5WAT0SC, SPMWH3228FD5WATKSC, and SPMWH3228FD5WATMSC be used interchangeably with SPMWH3228FD5WAT0S2?

A: Yes. All three substitute parts are parametric equivalents meeting identical specifications for color temperature (4000K), luminous flux (59lm at 150mA), current ratings (150mA nominal, 160mA maximum), viewing angle (120°), package format (2835 metric), and compliance certifications (RoHS, MSL 2A). The 0.1V reduction in forward voltage and improved efficiency are within acceptable operating tolerances.

Q: What is the difference between the LM281BZ and LM281BZ+ series?

A: The LM281BZ+ series represents an active product line continuation of the LM281BZ series. Both series share identical optical, thermal, and mechanical specifications. The primary difference is product status: LM281BZ is classified as Not For New Designs, while LM281BZ+ is Active. The LM281BZ+ also demonstrates improved luminous efficacy (131 lm/W versus 127 lm/W) while maintaining the same lumen output at test current.

Q: Are there any circuit design changes required when substituting these parts?

A: No circuit design changes are required. The substitute parts operate at the same nominal current (150mA) and maximum current (160mA) as the main part. The 0.1V reduction in typical forward voltage does not necessitate resistor recalculation or driver reconfiguration in existing designs.

Q: Do the substitute parts have the same thermal characteristics?

A: Yes. All substitute parts maintain identical thermal resistance (25°C/W) and maximum seated height (0.75mm), ensuring equivalent thermal performance and PCB layout compatibility.

Q: What is the moisture sensitivity level, and how does it affect handling?

A: All parts, including the main part and substitutes, are rated MSL 2A (4 Weeks). This classification indicates the component can be exposed to ambient conditions (30°C, 60% relative humidity) for up to 4 weeks before soldering. Storage in dry conditions or desiccant packaging extends shelf life and prevents moisture absorption that could compromise solder joint reliability.

Q: Are the substitute parts RoHS compliant?

A: Yes. All three substitute parts are RoHS compliant, matching the compliance status of the main part and meeting regulatory requirements for restricted substances in electrical and electronic equipment.

Q: Which substitute part should be selected if multiple options are available?

A: All three substitute parts are functionally equivalent. Selection can be based on inventory availability, supplier lead times, or packaging preferences. SPMWH3228FD5WATKSC offers the highest inventory level (1165 units), while SPMWH3228FD5WAT0SC and SPMWH3228FD5WATMSC provide alternative sourcing options with comparable availability (991 and 970 units, respectively).