LTST-C21KRKT Optoelectronics

LED Indication - Discrete

LTST-C21KRKT is a lightweight, low-cost light-emitting diode (LED) indicator module specifically designed for discrete light-emitting application fields in a wide range of industrial environments. It is a light weight, bright and robust indicator module, which includes two identical light sources spaced at a distance of 20 mm, two opal diffusers in a 57 mm housing with integrated seals and two guards for optional mounting in hard environments. The LTST-C21KRKT is designed to meet all the lighting requirements of multi-zone industrial equipment to provide different colour options. The two-zone settings reduce the possibility of colour bleed and create a consistent visual identity.

LTST-C21KRKT is suitable for on/off and blinking-indication as well as rotating-display applications. The indicator module is also suitable for an array of applications, particularly those which require accurate localization of controllers and displays. Common examples include conveyors, robots, switches and actuators, motion control systems and task control systems. The module is often used in industrial equipment applications and the associated circuitry has been designed and tested for shock and vibration.

Working Principle

The LTST-C21KRKT LED Indicator Module is based on the principle of tunnel-diode driving technology. A tunnel-diode is a two-terminal device, and its working principle is that when a voltage is added, the diode current flows through the tunnel-diode, and thus the light emission begins. When the current reaches a given point, the light emission saturates and intensifies. The characteristics of tunnel-diodes are such that even with a very small voltage, large current flows through them; and thus, the light emission process becomes fast, steady and reliable.

The LTST-C21KRKT module is a high-reliability, self-contained system, capable of operating over a wide range of temperatures, currents and voltages. It is also able to deal with external electrical interference with ease. The module is equipped with two high-efficiency LEDs with a beam angle of 70°, giving uniform illumination while maintaining maximum efficiency. The LEDs are supported by a constant-current power supply which enables flawless and precise performance. Furthermore, the combination of a clear epoxy lens and the diffuser makes sure that the light emitted is distributed smoothly across the entire area.

Conclusion

In conclusion, the LTST-C21KRKT is a low-cost, yet reliably efficient LED indicator module. Its tunnel-diode based working principle ensures fast, steady and reliable light emission, and it has been designed to meet a range of lighting requirements in the industrial arena, from motion control to task control. Its superior construction makes it resistant to shock, vibration and intense electric fields, and its two-zone settings make sure that it produces a consistent, uniform illumination.