SPMWH3228FD5WAVKS4 LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD5WAVKS4 is a Samsung Semiconductor warm white LED (LM281BZ series) in 2835 metric package format. This surface mount LED operates at 3000K color temperature with 3.1V forward voltage and 150mA test current, delivering 64 lumens at 25°C. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Equivalent and substitute parts are necessary to support existing production requirements, maintenance operations, and design transitions to active product lines.

Substiute Parts

SPMWH3228FD5WAVKS4

Samsung Semiconductor, Inc.In Stock: 704SPMWH3228FD5WAVKS4 Datasheet

Current PartRFQ

SPMWH1228FD5WAV0S4

Samsung Semiconductor, Inc.In Stock: 12781SPMWH1228FD5WAV0S4 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5WAVMS4

Samsung Semiconductor, Inc.In Stock: 40732SPMWH1228FD5WAVMS4 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD5WAVUS4

Samsung Semiconductor, Inc.In Stock: 41217SPMWH1228FD5WAVUS4 Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAV0SG

Samsung Semiconductor, Inc.In Stock: 1182SPMWH3228FD5WAV0SG Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAVKSG

Samsung Semiconductor, Inc.In Stock: 785SPMWH3228FD5WAVKSG Datasheet

Parametric EquivalentRFQ

SPMWH3228FD5WAVMSG

Samsung Semiconductor, Inc.In Stock: 910SPMWH3228FD5WAVMSG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD5WAVKS4 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Color: White, Warm (3000K CCT)
• Flux @ 25°C, 150mA: 64 lm (62–66 lm range)
• Forward Voltage (Vf) Typical: 3.1V or 3.0V
• Test Current: 150mA
• Maximum Current: 160mA
• CRI: 80
• Viewing Angle: 120°
• Package / Case: 1113 (2835 Metric)
• Mounting Type: Surface Mount
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level: 2A (4 Weeks)

Substitute Categories:

Category A – LM281B Series (Tape & Reel Packaging): Parts SPMWH1228FD5WAV0S4, SPMWH1228FD5WAVMS4, and SPMWH1228FD5WAVUS4 are parametric equivalents with identical electrical and mechanical specifications to the main part. These parts differ only in packaging designation suffix and maintain "Not For New Designs" status.

Category B – LM281BZ+ Series (Bulk Packaging): Parts SPMWH3228FD5WAV0SG, SPMWH3228FD5WAVKSG, and SPMWH3228FD5WAVMSG are parametric equivalents with forward voltage of 3.0V (versus 3.1V) and efficiency of 142 lm/W (versus 138 lm/W). These parts carry "Active" product status and are supplied in bulk packaging rather than tape & reel. Flux output remains 64 lm at 150mA test current.

Parameter Comparison

Engineering Selection Recommendations

For Tape & Reel Packaging Requirements: When tape & reel packaging is mandatory for automated assembly processes, select from the LM281B series substitutes: SPMWH1228FD5WAVUS4, SPMWH1228FD5WAVMS4, or SPMWH1228FD5WAV0S4. These parts maintain identical electrical performance (3.1V Vf, 138 lm/W) and mechanical compatibility with the original SPMWH3228FD5WAVKS4. All three variants carry "Not For New Designs" status consistent with the main part. Inventory availability is significantly higher across all three variants (12,676 to 40,665 units), supporting sustained production operations.

For Active Product Line Integration: When transitioning to active product status, the LM281BZ+ series (SPMWH3228FD5WAV0SG, SPMWH3228FD5WAVKSG, SPMWH3228FD5WAVMSG) provides forward compatibility. These parts deliver improved efficiency (142 lm/W versus 138 lm/W) and reduced forward voltage (3.0V versus 3.1V), resulting in lower power dissipation. Bulk packaging requires adjustment to procurement and assembly workflows. All three variants maintain identical flux output (64 lm), CRI (80), and mechanical form factor (2835 metric package).

Compliance Considerations: All substitute parts maintain RoHS compliance and 2A moisture sensitivity level (4 weeks), ensuring regulatory and handling requirements remain unchanged. Selection between tape & reel and bulk packaging variants should be determined by assembly equipment capability and supply chain requirements rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1228FD5WAVUS4, SPMWH1228FD5WAVMS4, and SPMWH1228FD5WAV0S4 be used interchangeably with SPMWH3228FD5WAVKS4?

A: Yes. These three LM281B series parts are parametric equivalents with identical electrical specifications (3.1V Vf, 64 lm flux, 138 lm/W efficiency, 150mA test current) and mechanical compatibility (2835 metric package, 120° viewing angle, surface mount). All maintain tape & reel packaging and "Not For New Designs" status. The suffix designations (US4, MS4, 0S4) indicate packaging reel configuration only and do not affect component performance.

Q: What is the difference between the LM281B and LM281BZ+ series substitutes?

A: The LM281BZ+ series (SPMWH3228FD5WAV0SG, SPMWH3228FD5WAVKSG, SPMWH3228FD5WAVMSG) differs in three aspects: (1) Forward voltage is 3.0V instead of 3.1V, reducing power dissipation by approximately 3%; (2) Efficiency is 142 lm/W instead of 138 lm/W; (3) Product status is "Active" rather than "Not For New Designs," supporting long-term availability. Flux output (64 lm), color temperature (3000K), and package form factor (2835 metric) remain identical. The LM281BZ+ series is supplied in bulk packaging rather than tape & reel.

Q: Are the LM281BZ+ parts suitable for automated assembly lines using tape & reel feeders?

A: No. The LM281BZ+ series is supplied in bulk packaging, not tape & reel format. Automated pick-and-place assembly equipment requires tape & reel packaging. For automated assembly compatibility, use the LM281B series substitutes (SPMWH1228FD5WAVUS4, SPMWH1228FD5WAVMS4, SPMWH1228FD5WAV0S4), which maintain tape & reel packaging identical to the original part.

Q: Does the 0.1V difference in forward voltage (3.1V versus 3.0V) affect circuit design?

A: The forward voltage difference between LM281B (3.1V) and LM281BZ+ (3.0V) series is within typical LED manufacturing tolerance and does not require circuit redesign for standard current-limiting applications. However, designs with tight voltage budgets or precision current regulation should account for the 0.1V reduction when selecting LM281BZ+ parts. Both series operate at identical test current (150mA) and maximum current (160mA).

Q: What is the significance of the packaging suffix codes (US4, MS4, 0S4, KSG, MSG)?

A: These suffix codes designate packaging reel configuration, tape width, and supply format. For tape & reel parts (US4, MS4, 0S4), the codes indicate different reel specifications used by component distributors and manufacturers. For bulk parts (KSG, MSG, 0SG), the codes indicate bulk packaging format. The electrical and mechanical performance of the LED itself is independent of these packaging designations.

Q: Can I mix LM281B and LM281BZ+ series parts in the same production batch?

A: Mixing series is not recommended within a single production batch due to forward voltage differences (3.1V versus 3.0V) and efficiency variations (138 lm/W versus 142 lm/W). These differences may result in inconsistent brightness or color uniformity in the final product. Maintain series consistency within each production run. Transition between series should occur at defined batch boundaries with appropriate documentation.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (LM281B and LM281BZ+ series) are RoHS compliant and maintain identical moisture sensitivity level (2A, 4 weeks) as the original SPMWH3228FD5WAVKS4. No additional compliance verification is required for regulatory purposes.

Q: What inventory levels should I consider when selecting a substitute?

A: Inventory availability varies significantly across substitutes. The LM281B series offers higher stock levels (12,676 to 40,665 units) compared to the original part (681 units) and LM281BZ+ series (769 to 1,144 units). For sustained production requirements, the LM281B series provides greater supply security. For long-term projects, the LM281BZ+ "Active" status ensures continued availability beyond the "Not For New Designs" lifecycle of other options.