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Home > Products > Optoelectronics > LED White Lighting > SPMWH1228FD7WAT0SG
Samsung Semiconductor, Inc.
MFG LM281B series.jpg ImageView larger image
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SPMWH1228FD7WAT0SG

In Stock 1569183 pcs Reference Price(In US Dollars)
40000+
$0.0161
Manufacturer Part Number:
SPMWH1228FD7WAT0SG
Manufacturer / Brand
Samsung Semiconductor, Inc.
Part of Description:
LED LM281B+
Datasheets:
SPMWH1228FD7WAT0SG(1).pdfSPMWH1228FD7WAT0SG(2).pdfSPMWH1228FD7WAT0SG(3).pdf
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 1569183 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SPMWH1228FD7WAT0SG
Manufacturer / Brand Samsung Semiconductor, Inc.
Stock Quantity 1569183 pcs Stock
Category Optoelectronics > LED White Lighting
Description LED LM281B+
Lead Free Status / RoHS Status: RoHS Compliant
Voltage - Forward (Vf) (Typ) 3V
Viewing Angle 120°
Thermal Resistance of Package 25°C/W
Supplier Device Package 2835
Size / Dimension 0.138" L x 0.110" W (3.50mm x 2.80mm)
Series LM281B+
Package / Case 1113 (2835 Metric)
Package Tape & Reel (TR)
Mounting Type Surface Mount
Lumens/Watt @ Current - Test 133 lm/W
Height - Seated (Max) 0.030" (0.75mm)
Flux @ 85°C, Current - Test -
Flux @ 25°C, Current - Test 61lm (60lm ~ 63lm)
Current - Test 150mA
Current - Max 160mA
Color White, Neutral
CRI (Color Rendering Index) 90
CCT (K) 4000K
Base Product Number SPMWH1228

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
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Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can SPMWH1228FD7WAT0SG be driven directly from a 3V rail in a compact LED lighting design?
SPMWH1228FD7WAT0SG has a typical forward voltage of 3V at 150mA, but it should not be connected directly to a fixed 3V supply without current regulation. LED forward voltage varies with temperature and production tolerance, so a constant-current driver or a current-limited circuit is needed to keep the operating current within the 160mA maximum rating.
What should I check before replacing another 2835 neutral white LED with SPMWH1228FD7WAT0SG?
When replacing another 2835 LED with SPMWH1228FD7WAT0SG, compare the footprint, polarity marking, optical center, forward voltage, drive current, luminous flux, CRI, CCT, and thermal path. Although SPMWH1228FD7WAT0SG uses a 2835 package, differences in pad layout, lens geometry, or brightness binning can affect PCB compatibility, light uniformity, and driver current settings.
Is SPMWH1228FD7WAT0SG suitable for high-CRI indoor lighting applications?
SPMWH1228FD7WAT0SG is suitable for many indoor lighting designs that require neutral white 4000K output and CRI 90 color rendering. Its 61lm typical flux at 150mA and 133lm/W typical efficacy support use in panels, linear fixtures, task lighting, and commercial luminaires where color quality and moderate efficiency are both design targets.
When should I avoid using SPMWH1228FD7WAT0SG in an LED module?
SPMWH1228FD7WAT0SG may not be the best fit if the design requires very high drive current, narrow beam control from the LED package itself, RGB or tunable-white output, very high-power single-emitter performance, or operation beyond the thermal limits of a 2835 mid-power LED. For such cases, a high-power LED package, secondary optics, or a multi-CCT architecture may be more appropriate.
How should thermal design be handled when using SPMWH1228FD7WAT0SG at 150mA or near 160mA?
SPMWH1228FD7WAT0SG has a package thermal resistance of 25°C/W, so PCB copper area, solder joint quality, board material, and fixture airflow affect junction temperature. Designs running SPMWH1228FD7WAT0SG near the 160mA maximum should use adequate copper spreading and verify LED temperature under worst-case ambient conditions, because excess junction temperature can reduce luminous flux and accelerate lumen depreciation.
Can SPMWH1228FD7WAT0SG be used in constant-voltage LED strip designs?
SPMWH1228FD7WAT0SG can be used in a constant-voltage strip only if each LED string includes suitable current-setting components or a regulated driver stage. Since SPMWH1228FD7WAT0SG is a 3V-class LED, string length must be selected according to the supply voltage, resistor headroom, thermal dissipation, and expected voltage variation across LEDs.
What design changes may be needed when migrating from a lower-CRI Samsung LM281B+ LED to SPMWH1228FD7WAT0SG?
Migrating to SPMWH1228FD7WAT0SG may require checking optical output, color bin, thermal loading, and efficiency because CRI 90 LEDs often have different efficacy and spectral characteristics than lower-CRI versions. SPMWH1228FD7WAT0SG provides neutral white 4000K output with 61lm typical flux at 150mA, so the LED count or drive current may need adjustment to match the previous fixture brightness.
Is SPMWH1228FD7WAT0SG compatible with automated SMT assembly and reflow soldering?
SPMWH1228FD7WAT0SG is supplied in Tape & Reel packaging and uses a surface-mount 2835 package, making it suitable for automated pick-and-place assembly. Because SPMWH1228FD7WAT0SG has MSL 2A moisture sensitivity, storage time after bag opening and baking procedures should follow standard moisture handling practices before reflow.
How does the 120° viewing angle of SPMWH1228FD7WAT0SG affect fixture optics?
SPMWH1228FD7WAT0SG has a 120° viewing angle, which works well for diffuse lighting, light panels, linear luminaires, and applications using reflectors or diffusers. If the design needs a tight beam, wall-wash control, or low glare, SPMWH1228FD7WAT0SG will typically require secondary optics, spacing optimization, or mechanical shielding.
Can SPMWH1228FD7WAT0SG be used in industrial lighting with long operating hours?
SPMWH1228FD7WAT0SG can be used in long-hour industrial lighting if the design controls junction temperature, current stress, solder reliability, and environmental exposure. For SPMWH1228FD7WAT0SG, running below maximum current, maintaining good PCB heat spreading, and validating performance at the fixture’s maximum ambient temperature will support more stable flux and color behavior over time.
What should I consider when using SPMWH1228FD7WAT0SG in parallel LED strings?
SPMWH1228FD7WAT0SG should not be placed in unmanaged parallel strings without current balancing. Forward-voltage differences between SPMWH1228FD7WAT0SG devices can cause unequal current sharing, especially as temperature changes. Using separate current-regulated channels, ballast resistors, or matched string designs helps reduce current imbalance.
Is SPMWH1228FD7WAT0SG a good choice for 4000K office lighting panels?
SPMWH1228FD7WAT0SG is a practical option for 4000K office lighting panels because it combines neutral white CCT, CRI 90 color rendering, 120° emission, and 2835 package compatibility. In panel designs, the final result will depend on LED spacing, diffuser transmission, driver ripple, thermal distribution, and bin consistency across the assembled module.

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