LN440YCP Optoelectronics

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LED Indication - Discrete

LN440YCP, part of the industrial-grade optical components manufactured by Sierra-Olympic Technologies, Inc., is a light-emitting diode (LED) indicator driven by a DC signal. It is designed to display digital or binary signals in the form of an illuminated dot. The LN440YCP is available in a variety of colors, and provides users with an array of extended options. Its applications range from simple “on/off” status readings, to displaying digital interfaces with illuminated displays.

Working Principle

The LED (LN440YCP) indicator is powered by a DC signal, typically of a few milliamps. The current through the LED is controlled by a prominent circuit component called the switching transistor. This component allows the current to flow through the LED depending on the voltage across its terminals. In effect, the output at the emitter of the switching transistor controls the forward current through the LED. The optional logic circuit in this configuration adds flexibility, enabling the display to accept logic drive inputs such as TTL and CMOS logic.

Output Responsiveness Tactics

To control the on/off state of the LED, the ubiquitous resistor-capacitor (RC) technique is used. This technique provides an adjustable control element, facilitating an extended control range. The resistor-capacitor (RC) part of the circuit creates an output delay, which provides a clean, consistent output response when the LED is driven by digital input signals.

Application Fields

The LN440YCP LEDs are used in a variety of industrial, medical, military, and aviation applications. Their luminous output can be used for brightening medical instruments, warning lights for control panels and displays, and for indicating operational status within a machine. This product can be used to customize a variety of illuminated panels and indicators, among which are 0-9 numerical displays, binary and hexadecimal displays, complex function displays, and indicator lights for hazardous equipment.

In conclusion, the LN440YCP is a reliable, high-intensity LED indicator designed for a variety of applications. With its remarkable resistance to shock and vibration, the LN440YCP can conveniently be used in harsh environments.

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