| Allicdata Part #: | LTL291-ND |
| Manufacturer Part#: |
LTL291 |
| Price: | $ 0.00 |
| Product Category: | Optoelectronics |
| Manufacturer: | Lite-On Inc. |
| Short Description: | LED RED DIFF 3MM ROUND T/H |
| More Detail: | Red 621nm LED Indication - Discrete 2V Radial |
| DataSheet: |  LTL291 Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | 0.00000 |
Specifications
| Voltage - Forward (Vf) (Typ): | 2V |
| Height (Max): | 5.25mm |
| Size / Dimension: | -- |
| Supplier Device Package: | -- |
| Package / Case: | Radial |
| Features: | -- |
| Wavelength - Peak: | 630nm |
| Wavelength - Dominant: | 621nm |
| Mounting Type: | Through Hole |
| Viewing Angle: | 76° |
| Current - Test: | 20mA |
| Series: | -- |
| Lens Style/Size: | Round with Domed Top, 3.00mm |
| Millicandela Rating: | 8.7mcd |
| Lens Transparency: | Diffused |
| Lens Color: | Orange |
| Color: | Red |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Obsolete |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Bulk |
Description
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LED indication can be an efficient way of highlighting, releasing and communicating different types of information. In the discrete category, an innovative product called the LTL291 is gaining popularity. This light dependent resistor can be used to detect and indicate light levels from the environment, allowing for an impressive range of applications. In this article, we will take a look at the possible application fields for the LTL291, as well as its basic working principle.
Applications of the LTL291
Due to its light-dependent operating mode, the LTL291 can be used in a variety of application fields. One example is in the automotive industry, where it can be used to control the lighting inside the car. When it is dark outside, the LTL291 responds to the low light levels and turns on the lights, as well as providing an indication of when the lights should be switched off. This helps to reduce power consumption and makes driving safer. Another application of the LTL291 is in the industrial sector, where it is often used in automatic lighting control. Here, it helps to maintain a comfortable level of light in the factory or warehouse, reducing energy costs while ensuring that there is enough light to continue working.
The LTL291 can also be used in consumer electronics, such as computers and mobile phones. It can be used to indicate when the device should be turned off or put into sleep mode, helping to conserve battery power. In addition, it can also be integrated into products such as night lights, alarms and motion detectors, allowing for a more automated and efficient control system.
Working Principle of the LTL291
The LTL291 is a light dependent resistor (LDR), which is a semiconductor device that detects and reacts to changes in the light level illuminating it. It works by using a photoresistor element to measure the amount of light that falls on it. The element is usually made from cadmium sulfide, but other materials such as silicon can also be used. When the light levels are low, the device has a high resistance, but when the light levels are high it has a low resistance.
This change in resistance can be used to detect when there is a certain amount of light. For example, in the automotive application mentioned above, the device can be used to detect when the lighting level falls below a certain threshold and switch on the headlights. It can also be used to switch off the lights once the threshold is exceeded. The same principle also applies to other applications such as detecting motion or measuring light levels.
In addition to detecting light levels, the LTL291 can also be used to indicate the level of light. This can be done by attaching the device to a circuit which can act as an indicator. When the light level is low, the resistance of the device increases and this can be used to light up an LED. This indicates that the light level is low and that it needs to be adjusted or switched on.
Conclusion
The LTL291 is an innovative and versatile light dependent resistor, capable of detecting and indicating light levels. It can be used in a variety of application fields, such as automotive, industrial and consumer electronics, providing an efficient and cost effective way of controlling lighting environments. As well as detecting and indicating light levels, the device can also be used to switch on and off lights automatically and provide a visual indication of the presence of light. In addition to its wide range of applications, the device is also relatively low cost, making it a popular choice for many practical applications.
The specific data is subject to PDF, and the above content is for reference
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