156125YS75000

Overview

The Würth Elektronik 156125YS75000 is a single-color surface-mount LED from the WL-SMRW series, designed for indicator applications. It emits yellow light with a peak wavelength of 591 nm and a dominant wavelength of 589 nm. The component features a 1205 (3212 metric) package measuring 3.20 mm in length, 1.20 mm in width, and a maximum height of 1.20 mm. Key electrical parameters include a typical forward voltage of 2.1 V at a test current of 20 mA. The optical output provides an intensity of 70 mcd with a viewing angle of 140 degrees.

Feature Summary

• Utilizes a bottom-entry surface mount configuration within a compact 1205 footprint.
• Features a square lens with a flat top design and colorless transparency.
• Provides wide-angle visibility through a 140-degree viewing cone.
• Complies with RoHS 3 standards and operates within a standard temperature range.

Applications

• General equipment status indicators
• Control panel signal lights
• Consumer electronics status displays

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging format, such as tape and reel or cut tape, as these affect handling procedures. Confirm moisture sensitivity level requirements and reflow soldering profiles against your assembly specifications. Check for any recent product change notices regarding labeling or material composition updates before finalizing procurement orders.

Selection Notes

Select this component when a low-profile yellow indicator is required for space-constrained designs. The 1205 package offers a balance between visibility and board real estate. Ensure the driving circuit accommodates the 2.1 V forward voltage drop. Consider the 70 mcd intensity sufficient for direct line-of-sight applications without additional optics.

Part Context

This part belongs to the WL-SMRW series of single-color LEDs manufactured by Würth Elektronik. The series includes various colors and intensities sharing similar mechanical dimensions and mounting characteristics. The 156125YS75000 specifically denotes the yellow variant with standard intensity in the 1205 case size.

Replacement Considerations

Direct substitutes require matching the 1205 package, yellow wavelength around 589-591 nm, and similar forward voltage. Verify pinout compatibility and luminous intensity requirements. Cross-reference with other manufacturers offering 3212 metric yellow SMD LEDs with comparable viewing angles.