SPMWH3228FD5WATKSE LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WATKSE is a surface-mount LED lighting component manufactured by Samsung Semiconductor, Inc., featuring the LM281BZ+ series with neutral white 4000K color temperature. This part is classified as Active product status and is RoHS Compliant. The component is designed for applications requiring 3V operation at 150mA test current with a 120° viewing angle in the compact 2835 metric package format.

Substitute parts are identified when product availability changes, manufacturing transitions occur, or design revisions necessitate component alternatives. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances for this LED category.

Substiute Parts

SPMWH3228FD5WATKSE

Samsung Semiconductor, Inc.In Stock: 1008SPMWH3228FD5WATKSE Datasheet

Current PartRFQ

SPMWH1228FD5WAT0S3

Samsung Semiconductor, Inc.In Stock: 18353SPMWH1228FD5WAT0S3 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5WATMS3

Samsung Semiconductor, Inc.In Stock: 37091SPMWH1228FD5WATMS3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWH3228FD5WATKSE is determined by the following critical parameters:

Color and CCT Match: All substitute parts maintain White, Neutral 4000K specification, ensuring identical color output characteristics.

Luminous Flux Compatibility: All parts deliver 63 lm (61–65 lm range) at 25°C under 150mA test current, maintaining consistent brightness output.

Electrical Parameters: Test current remains 150mA across all parts. Forward voltage (Vf) ranges from 3.0V to 3.1V, which falls within acceptable circuit design tolerances for standard LED driver configurations.

Mechanical Compatibility: All parts use identical 2835 metric package (1113 case code) with matching dimensions (3.50 × 2.80 mm) and maximum seated height (0.75 mm), ensuring PCB layout and thermal management compatibility.

Viewing Angle: All parts maintain 120° viewing angle specification.

Thermal and Environmental Compliance: All parts share identical thermal resistance (25°C/W), RoHS compliance status, and MSL rating (2A, 4 Weeks).

The substitute parts SPMWH1228FD5WAT0S3 and SPMWH1228FD5WATMS3 differ from the main part in series designation (LM281B versus LM281BZ+) and product status (Not For New Designs), but maintain full electrical and mechanical interchangeability within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (SPMWH3228FD5WATKSE): This component carries Active product status and is recommended for new design implementations. It features the LM281BZ+ series designation with RoHS Compliant certification. The part delivers 140 lm/W efficiency at the specified test current.

Substitute Part SPMWH1228FD5WAT0S3: This part is classified as Not For New Designs but maintains full electrical and mechanical compatibility. It features the LM281B series with RoHS Compliant certification. Forward voltage is 3.1V (compared to 3.0V for the main part) and efficiency is 135 lm/W. This part is suitable for replacement applications or legacy design support where component availability of the primary part is constrained.

Substitute Part SPMWH1228FD5WATMS3: This part is classified as Not For New Designs and features the LM281B series with ROHS3 Compliant certification (enhanced RoHS compliance). Forward voltage is 3.1V and efficiency is 135 lm/W. This part is suitable for replacement applications or legacy design support where component availability of the primary part is constrained. The ROHS3 compliance designation indicates adherence to the most current RoHS requirements.

Selection Basis: Component selection should prioritize the Active-status primary part for new designs. Substitute parts are appropriate for existing production lines, field replacements, or situations where primary part availability is limited. The 0.1V forward voltage difference (3.0V versus 3.1V) between the main part and substitutes is within standard LED driver tolerance ranges and does not require circuit redesign. All parts maintain identical luminous flux output, color temperature, viewing angle, and package dimensions.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAT0S3 or SPMWH1228FD5WATMS3 be used as direct replacements for SPMWH3228FD5WATKSE in existing designs?

A: Yes. Both substitute parts maintain identical electrical output (63 lm at 150mA test current, 4000K color temperature, 80 CRI), mechanical compatibility (2835 package, 3.50 × 2.80 mm dimensions, 0.75 mm height), and thermal characteristics (25°C/W). The forward voltage difference of 0.1V (3.1V versus 3.0V) is within standard LED driver tolerance ranges and does not require circuit modification.

Q: What is the difference between the main part and substitute parts?

A: The primary differences are: (1) Series designation—SPMWH3228FD5WATKSE uses LM281BZ+ while substitutes use LM281B; (2) Product status—the main part is Active while substitutes are Not For New Designs; (3) Forward voltage—main part is 3.0V typical, substitutes are 3.1V typical; (4) Efficiency—main part is 140 lm/W, substitutes are 135 lm/W; (5) RoHS certification—main part is RoHS Compliant, SPMWH1228FD5WATMS3 is ROHS3 Compliant. All other parameters are identical.

Q: Are there packaging differences between the main part and substitutes?

A: The main part SPMWH3228FD5WATKSE packaging designation is not specified in the provided data. Both substitute parts are supplied in Tape & Reel (TR) format. All three parts use the identical 2835 metric package (1113 case code) with matching physical dimensions and mounting characteristics.

Q: What does "Not For New Designs" status mean?

A: This designation indicates that the substitute parts are legacy or transitional components. They remain fully functional and compatible but are not recommended for incorporation into new product designs. These parts are appropriate for replacement in existing production, field service, or legacy system support.

Q: How do the efficiency ratings differ, and does this affect circuit design?

A: The main part delivers 140 lm/W while substitutes deliver 135 lm/W at 150mA test current. This 5 lm/W difference represents approximately 3.6% lower efficiency in the substitute parts. For applications where luminous output is critical, this difference should be evaluated against the specific brightness requirements. Standard LED driver circuits do not require modification to accommodate this efficiency variation.

Q: Are all parts RoHS compliant?

A: Yes. The main part SPMWH3228FD5WATKSE is RoHS Compliant. Substitute part SPMWH1228FD5WAT0S3 is RoHS Compliant. Substitute part SPMWH1228FD5WATMS3 is ROHS3 Compliant, which represents the current RoHS standard. All parts meet environmental compliance requirements.

Q: What is the MSL (Moisture Sensitivity Level) rating, and what does it mean?

A: All three parts carry MSL 2A (4 Weeks) rating. This indicates that the components must be stored in a controlled moisture environment and have a shelf life of 4 weeks after the moisture barrier bag is opened. Standard moisture-controlled storage and handling procedures apply.