156120BS75000

Overview

The Würth Elektronik 156120BS75000 is a single-color blue surface-mount LED from the WL-SMRW series. It features a rectangular lens with water-clear transparency and emits light at a peak wavelength of 465 nm. The component operates with a forward current of 20 mA and a typical forward voltage of 3.2 V, resulting in a power rating of 95 mW. It provides an optical intensity of 50 mcd and offers a viewing angle of 140 degrees. Housed in a 1206 (3216 metric) package measuring 3.2 mm x 1.6 mm x 1.2 mm, it supports operation between -40°C and +85°C.

Feature Summary

• Rectangular lens design with water-clear transparency for consistent light distribution
• High viewing angle of 140 degrees suitable for broad indicator applications
• Standard 1206 surface-mount footprint for automated assembly compatibility

Applications

• General purpose electronic status indicators
• Panel mount signaling devices
• Consumer electronics status lights
• Industrial control panel illumination

Procurement Notes

Verify the specific ordering suffix to confirm the exact packaging format, such as cut tape or reel, as these affect handling procedures. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure storage conditions account for moisture sensitivity level 3 requirements to prevent damage during soldering processes.

Selection Notes

Select this component when a standard blue indicator with wide visibility is required. The 140-degree viewing angle makes it suitable for applications where the observer may not be directly aligned with the LED axis. Consider the 3.2V forward voltage drop when designing the current-limiting resistor network to ensure proper drive current stability across supply variations.

Part Context

This part belongs to the WL-SMRW series of single-color LEDs manufactured by Würth Elektronik. The series includes various colors and lens shapes within the 1206 package form factor. The WL-SMRW designation specifically denotes the rectangular lens variant, distinguishing it from dome-shaped alternatives like the 156120BS82500 which offers different optical characteristics.

Replacement Considerations

Direct substitutes within the same series include other color variants sharing the 1206 rectangular package, such as 156120YS75000 for yellow or 156120VS75000 for green. For dome-shaped replacements, consider 156120BS82500, though optical intensity and viewing angles will differ significantly.