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Product Detailed Parameters
- Description：LED RED CLEAR 2SMD BOTTOM ENT
- Series：WL-SMRW
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Color：Red
- Configuration：Independent
- Lens Color：Colorless
- Lens Transparency：Clear
- Millicandela Rating：1100mcd
- Lens Style：Round with Domed Top
- Lens Size：-
- Voltage - Forward (Vf) (Typ)：2V
- Current - Test：20mA
- Viewing Angle：20°
- Mounting Type：Surface Mount, Bottom Entry
- Wavelength - Dominant：624nm
- Wavelength - Peak：632nm
- Features：-
- Package / Case：1206 (3216 Metric)
- Supplier Device Package：2-SMD
- Size / Dimension：3.20mm L x 1.60mm W
- Height (Max)：1.95mm
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 156120RS82500 is a single-color surface-mount LED from the WL-SMRW series. It emits red light with a peak wavelength of 624 nm and features a water-clear lens. The component utilizes a reverse mount configuration in a 3216 (1206) package, measuring 3.2 mm x 1.6 mm x 1.85 mm. Key electrical parameters include a forward voltage of 2.1 V at 20 mA and a maximum power dissipation of 48 mW. It offers a viewing angle of 20 degrees and operates within a temperature range of -40°C to +85°C.
Feature Summary
- Reverse mount design for bottom entry connectivity
- Water-clear dome lens for optimized light transmission
- Compact 3216 SMD footprint suitable for space-constrained applications
Applications
- General electronic equipment status indicators
- Panel mounting signal lights
- Consumer device front panels
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct binning and lens characteristics. Confirm that the reverse mount orientation aligns with the PCB silkscreen and pad layout. Check RoHS compliance documentation for the specific production batch. Ensure storage conditions respect moisture sensitivity levels prior to soldering.
Selection Notes
Select this component when a low-profile red indicator is required with bottom-entry terminals. The reverse mount style simplifies assembly for certain panel configurations. Compare the 20 mA forward current requirements against available drive circuits. Consider the 20-degree viewing angle for direct line-of-sight visibility needs.
Part Context
This part belongs to the WL-SMRW family of mono-color LEDs. The series includes various colors and lens types in the same 3216 package. Other variants may differ in wavelength, luminous intensity, or forward voltage. The reverse mount feature distinguishes it from standard top-mount SMD LEDs in the same product line.
Replacement Considerations
Direct substitutes must match the 3216 package, reverse mount polarity, and 624 nm red emission. Verify identical forward voltage and current ratings to maintain circuit compatibility. Cross-reference mechanical dimensions to ensure board fit.
