QTLP9123 Optoelectronics

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Introduction

The QTLP9123 is a discrete LED indication unit for utilization in a wide range of applications, such as automotive, industrial, telecommunications, and consumer electronics. This unit offers a high level of performance and reliability, coupled with a robust design. It can be used in virtually any type of application where a reliable and consistent indicator is required.

The QTLP9123 basic unit consists of one or more LEDs mounted with a plastic housing and encapsulated inside a reflective cup. This unit has been designed for two types of mounting: surface mounted and PCB mounted, and allows easy integration into the system depending on the application and the intended purpose.

Features

The QTLP9123 offers a wide range of features that make it one of the most reliable and robust LED indication units available. It is rated to IP65, allowing the unit to be used in both indoor and outdoor environments and can operate from -40°C to +60°C from -40°C to +70°C, including sunlight. It also has vibration and shock resistance for robust performance in challenging conditions. The unit is also RoHS and FCC compliant.

The main features of the QTLP9123 are:

1. Two surface mount and PC board mount options.
2. Integrated high-efficiency indicator and light output.
3. IP65 rating and approved to FCC, UL, CE, RoHS standard.
4. Wide operational temperature range.
5. LED switchable with multiple color and monochromatic options.
6. Three wire installation compatible with all automotive connection standards.
7. Easy integration with other systems.

Working Principle

The working principle of the QTLP9123 is fairly simple. The unit is an LED indicator system that uses a diode to emit a distinct light when the appropriate voltage is applied. When the voltage reaches a certain level, the diode can no longer pass current, and the light output is limited. The unit has two specific types of series diodes: one for direct current (DC) and one for alternating current (AC). The DC diode will require an extra voltage requirement in order to maintain its state.

The QTLP9123\'s LED indicator has two modes of operation. The first mode uses an active load at the input terminal of the diode, which allows for a low-current, constant-voltage startup. When this active load is applied, a certain amount of current flows through the diode to provide a predictable level of illumination. The second mode uses an LED driver, which is a specialized driver designed to provide bi-directional control of the LED. This allows the LED to be switched between "on" and "off" states with a single command.

The QTLP9123 is a versatile system with a wide range of applications. It is ideal for any application where reliable and consistent indication is required for use in many industries, including automotive, industrial, telecommunications, and consumer electronics. The unit is also extremely cost effective, making it an attractive choice for those seeking a reliable LED indicator without breaking the bank.

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