SPMWH3228FD7WAUMSG LED Equivalent & Substitute Parts

Part Overview

The SPMWH3228FD7WAUMSG is a Samsung Semiconductor surface-mount LED lighting component in the LM281BZ+ series, specified for warm white illumination at 3500K color temperature. This part is classified as Active product status and is RoHS compliant. The component operates at 3V forward voltage with a nominal test current of 150mA, delivering 55 lumens at 25°C with a color rendering index of 90. The 2835 metric package (1113) provides a compact form factor measuring 3.50mm × 2.80mm with a maximum seated height of 0.75mm, suitable for surface-mount assembly applications requiring warm white LED lighting.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require alternative specifications within compatible electrical and mechanical parameters.

Substiute Parts

SPMWH3228FD7WAUMSG

Samsung Semiconductor, Inc.In Stock: 1025SPMWH3228FD7WAUMSG Datasheet

Current PartRFQ

SPMWH1228FD7WAV0S3

Samsung Semiconductor, Inc.In Stock: 55070SPMWH1228FD7WAV0S3 Datasheet

Parametric EquivalentRFQ

SPMWH1228FD7WAVMS3

Samsung Semiconductor, Inc.In Stock: 1395SPMWH1228FD7WAVMS3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH3228FD7WAUMSG is determined by strict adherence to the following electrical and mechanical compatibility criteria:

Mandatory Compatibility Parameters:

• Package / Case: 1113 (2835 Metric) — ensures mechanical fit and thermal interface compatibility
• Mounting Type: Surface Mount — maintains assembly process compatibility
• Size / Dimension: 3.50mm × 2.80mm — preserves PCB layout and spacing requirements
• Height – Seated (Max): 0.75mm — ensures clearance and component stacking compatibility
• Viewing Angle: 120° — maintains optical performance characteristics
• Color: White, Warm — preserves color family classification
• CRI (Color Rendering Index): 90 — maintains color rendering performance
• Test Current: 150mA — establishes baseline electrical operating point
• Maximum Current: 160mA — defines absolute current limit
• RoHS Status: RoHS Compliant — ensures regulatory compliance
• Moisture Sensitivity Level (MSL): 2A (4 Weeks) — maintains handling and storage requirements

Allowable Variation Parameters:

• CCT (Correlated Color Temperature): 3000K–3500K range — warm white spectrum variants
• Forward Voltage (Vf) Typical: 3.0V–3.1V — acceptable voltage tolerance for series operation
• Flux @ 25°C: 53–57 lm range — luminous flux specification band
• Lumens per Watt: 118–122 lm/W — efficiency tolerance
• Thermal Resistance of Package: 17–25°C/W — thermal performance variation
• Product Status: Active or Not For New Designs — functional availability classification

The identified substitute parts SPMWH1228FD7WAV0S3 and SPMWH1228FD7WAVMS3 meet all mandatory compatibility criteria while operating within allowable variation parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: SPMWH3228FD7WAUMSG

The SPMWH3228FD7WAUMSG maintains Active product status and is recommended for new designs requiring warm white LED illumination at 3500K. This part delivers 122 lm/W efficiency and features a thermal resistance of 25°C/W. RoHS compliance and MSL 2A classification confirm suitability for standard manufacturing and storage environments.

Substitute Part 1: SPMWH1228FD7WAV0S3

The SPMWH1228FD7WAV0S3 is classified as Not For New Designs but remains functionally compatible with the primary part across all mandatory mechanical and electrical parameters. This substitute operates at 3000K color temperature (500K lower than the primary part) and exhibits improved thermal resistance at 17°C/W. The part is available in Tape & Reel packaging with 54,987 units in stock. RoHS compliance and MSL 2A classification are maintained. This substitute is suitable for legacy design support or applications where 3000K warm white is acceptable.

Substitute Part 2: SPMWH1228FD7WAVMS3

The SPMWH1228FD7WAVMS3 is classified as Not For New Designs and provides identical electrical and mechanical compatibility to SPMWH1228FD7WAV0S3. This part operates at 3000K color temperature with 17°C/W thermal resistance. Tape & Reel packaging is provided with 1,295 units in stock. RoHS compliance and MSL 2A classification are confirmed. This substitute is suitable for legacy design support or applications where 3000K warm white is acceptable.

Key Differences:

Both substitute parts operate at 3000K versus the primary part's 3500K, representing a warmer color temperature shift. Substitute parts exhibit superior thermal resistance (17°C/W versus 25°C/W), indicating improved heat dissipation characteristics. Substitute parts carry Not For New Designs status, indicating Samsung has transitioned these to legacy support. Lumens per watt efficiency is 118 lm/W for substitutes versus 122 lm/W for the primary part, representing a 3.3% efficiency reduction. Forward voltage increases from 3.0V to 3.1V in substitute parts, requiring circuit verification for series-connected applications.

Frequently Asked Questions (FAQ)

Q1: Can SPMWH1228FD7WAV0S3 or SPMWH1228FD7WAVMS3 be used as direct replacements for SPMWH3228FD7WAUMSG?

A: Both substitute parts meet all mandatory mechanical and electrical compatibility criteria: identical 2835 metric package, 3.50mm × 2.80mm dimensions, 0.75mm maximum seated height, 120° viewing angle, 150mA test current, 160mA maximum current, 90 CRI, RoHS compliance, and MSL 2A classification. However, the 500K color temperature difference (3000K versus 3500K) and 0.1V forward voltage increase must be evaluated for specific application requirements. Thermal performance improves with substitutes (17°C/W versus 25°C/W).

Q2: What is the significance of the "Not For New Designs" product status on substitute parts?

A: Not For New Designs status indicates Samsung has classified these parts as legacy components. While functionally compatible and available in inventory, Samsung recommends using Active status parts (SPMWH3228FD7WAUMSG) for new product development. Substitute parts remain suitable for design revisions, legacy product support, or applications where inventory constraints necessitate alternative sourcing.

Q3: How do the color temperature differences affect application compatibility?

A: The primary part operates at 3500K (neutral warm white), while substitutes operate at 3000K (deeper warm white). This 500K difference produces a visually warmer appearance. Applications requiring precise color temperature matching (such as architectural lighting or display backlighting) must account for this shift. Applications with broader color temperature tolerance can accommodate the substitution.

Q4: What is the impact of the forward voltage increase from 3.0V to 3.1V?

A: The 0.1V increase in forward voltage affects circuit design, particularly in series-connected LED strings. For a string of N LEDs, total forward voltage increases by 0.1V × N. In 3V supply applications with single LEDs, this 3.3% increase is typically accommodated by standard voltage regulation. In series strings or current-limited designs, verify that the power supply and current-limiting circuit can accommodate the higher voltage drop.

Q5: Why do substitute parts show improved thermal resistance (17°C/W versus 25°C/W)?

A: Thermal resistance values are provided in the specifications as supplied. The lower thermal resistance of substitute parts (17°C/W) indicates superior heat dissipation characteristics compared to the primary part (25°C/W). This improvement benefits applications operating at elevated ambient temperatures or with continuous high-current operation, reducing junction temperature rise.

Q6: Are packaging format differences between parts significant?

A: The primary part SPMWH3228FD7WAUMSG does not specify packaging format in the provided data. Both substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated assembly. Tape & Reel packaging is compatible with standard pick-and-place equipment and does not affect component performance or compatibility.

Q7: How should inventory availability influence substitution decisions?

A: The primary part SPMWH3228FD7WAUMSG has 979 units in stock. Substitute SPMWH1228FD7WAV0S3 has 54,987 units available, and SPMWH1228FD7WAVMS3 has 1,295 units available. When primary part inventory is depleted, substitute parts with higher stock levels provide supply chain continuity. However, substitution should be driven by technical compatibility rather than inventory alone.

Q8: What compliance certifications apply to all parts in this substitution group?

A: All three parts (primary and substitutes) are RoHS Compliant, confirming compliance with Restriction of Hazardous Substances regulations. All parts carry MSL 2A (4 Weeks) classification, indicating moisture sensitivity level requiring controlled storage and handling within 4 weeks of package opening. ECCN EAR99 and HTSUS 8541.41.0000 classifications are consistent across all parts.

Q9: Can substitute parts be mixed in the same assembly or circuit?

A: Both substitute parts (SPMWH1228FD7WAV0S3 and SPMWH1228FD7WAVMS3) are electrically and mechanically identical, differing only in packaging format and inventory source. They can be used interchangeably in the same assembly. However, mixing primary part (3500K) with substitute parts (3000K) in the same visible application creates color temperature inconsistency and is not recommended for applications requiring uniform color appearance.

Q10: What testing or verification is required before implementing a substitution?

A: Substitution decisions must be based on the provided electrical and mechanical parameters. Verify that the 3000K color temperature, 3.1V forward voltage, and 118 lm/W efficiency meet application requirements. Confirm that circuit design accommodates the 0.1V voltage increase. Validate that color temperature uniformity is acceptable if mixing with primary parts. No additional testing parameters are specified in the provided data.