19-21/GHC-YR1S2/3T

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LED Indication - Discrete is the category for the 19-21/GHC-YR1S2/3T application field and working principle. The 19-21/GHC-YR1S2/3T is a light emitting diode (LED) indicator with three terminals. It is used as an on/off indicator in devices such as telephones, switch panels, medical equipment, and digital meters. This article will discuss how the 19-21/GHC-YR1S2/3T works and its applications.

Working Principle

The 19-21/GHC-YR1S2/3T consists of two terminals, a cathode and anode, along with a center terminal. The center terminal is called the control terminal. When the control terminal is connected to the ground or 0V, the current flow from the anode to the cathode is blocked. When the control terminal is connected to the positive voltage, the current will flow freely from the anode to the cathode and light up the LED.

The 19-21/GHC-YR1S2/3T is designed to operate at a voltage of 19 Volts (V). It can be operated at 12V, 15V, and 24V, although the brightness may not be consistent with these different voltages. The 19-21/GHC-YR1S2/3T LED has a greater life expectancy than other LED indicators due to its low power consumption. It only draws 150 milliamps (mA) when fully illuminated and 10mA when not illuminated. This results in an efficiency rating of more than 85%.

Applications

The 19-21/GHC-YR1S2/3T is used in many applications. It can be found in medical devices, such as blood pressure monitors and pulse oximeters, to indicate the user’s readings. It is also commonly used in telephones, switch panels, and other consumer electronic devices to indicate when a device is on or off. It can also be used in digital meters to indicate the reading of the device.

The 19-21/GHC-YR1S2/3T is also suitable for a variety of operating temperature ranges. It can withstand up to 85°C for continuous operation and up to 100°C for short-term operation. It is available in different colors, which can be used to indicate different statuses or events. It also has a wide range of viewing angles, which makes it suitable for both indoor and outdoor applications.

Conclusion

The 19-21/GHC-YR1S2/3T is a light emitting diode (LED) indicator with three terminals. It is used as an on/off indicator in devices such as medical equipment, digital meters, and phones. The indicator works by blocking current flow when the center terminal is grounded, and allowing current to flow freely through the anode-cathode when the center terminal is connected to the positive voltage. It is designed to operate at a voltage of 19V, but can be operated at other voltages with varying levels of brightness. The indicator is suitable for applications in different operating temperatures, colors, and viewing angles, making it suitable for indoor and outdoor applications.

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