Current:	3mA
Features:	--
Ingress Protection:	--
Termination Style:	Solder Lug
Viewing Angle:	45°
Wavelength - Peak:	--
Millicandela Rating:	1600mcd
Lens Style/Size:	Round with Flat Top, 14.00mm
Panel Cutout Dimensions:	0.47" (11.94mm)
Panel Cutout Shape:	Round
Series:	QS
Voltage:	220V
Ratings:	AC
Lens Transparency:	Diffused
Lens Color:	Blue
Lamp Color:	Blue
Moisture Sensitivity Level (MSL):	--
Type:	LED
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Panel Indicators, Pilot Lights

Panel indicators and pilot lights are visual displays used to indicate the status of pressure, temperature, flow, level, speed, and other process variables within a system. They come in many shapes, sizes, and materials, but their common purpose is to provide clear visual indication of the status of whatever is being monitored.QS121XXHB220 is a panel indicator and pilot light from Avago Technologies. It is a two-color LED-based indication device with an extended life and high reliability. The device is built for applications such as industrial signaling, gaming and entertainment, and automotive applications.The device comes in several configurations, including single-color, two-color, and RGB (Red-Green-Blue) versions. In its two-color version, the QS121XXHB220 can show either two colors simultaneously or alternately in a flashing or ‘breathing’ pattern, depending on the data signal received from the controller unit.This product also offers a variety of design features, such as a wide viewing angle, white LED for enhanced brightness, and wide range illumination. It also has other enhancements, such as active state power control and improved EMI (electromagnetic interference) protection, making it suitable for a wide range of applications.The QS121XXHB220’s working principle is based on pulse-width modulation (PWM), which is a method of sending data through a series of pulses. To do this, the device receives a signal from the controlling unit in the form of a PWM signal. The device then interprets this signal and outputs a setting for the LED indicator accordingly. For example, if the signal is a high voltage, the device turns on the red LED, and if the signal is a low voltage, the device turns on the green LED.In addition, the device also has protection features to prevent damage in the event of an unexpected surge in voltage. This includes a built-in ESD (electrostatic discharge) protection, over-current protection, and over-temperature protection.In conclusion, the QS121XXHB220 is a two-color LED-based indicator device that is designed for use in a variety of applications, such as industrial signaling, gaming and entertainment, and automotive applications. The device works by receiving a signal from the controlling unit and interpreting it to output a setting for the LED indicator accordingly. It also has various protection features to prevent damage from power surges and other issues.

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Part Number	Manufacturer	Price	Quantity	Description