3mm LDR Sensor Light Dependent Resistor Sensor

A 3mm LDR (Light Dependent Resistor) is a type of photoresistor that is commonly used in electronics. 3mm LDR is a small, inexpensive component that can be used to detect the presence or absence of light. The resistance of an LDR decreases as the amount of light striking it increases. This means that an LDR can use to measure the intensity of light.

3mm LDRs are typically made of cadmium sulfide (CdS) or cadmium selenide (CdSe). These materials are semiconductors that change their electrical properties in response to light. When light strikes an LDR, it excites the electrons in the semiconductor material. This causes the electrons to move more freely, which decreases the resistance of the LDR.

A 3mm LDR with 2 pins is a type of light dependent resistor (LDR) that has two leads or pins. The pins are typically located on opposite sides of the LDR, and they are used to connect the LDR to a circuit.

The resistance of a 3mm LDR with 2 pins decreases as the amount of light striking it increases. This means that the LDR can use to measure the intensity of light. The resistance of an LDR is typically in the range of megohms (MΩ) in the dark and a few ohms in bright light.

3mm LDRs are also used in more complex applications, such as light meters and photocells. Light meters use LDRs to measure the intensity of light. Photocells are used to detect the presence of light.

The input voltage of a 3mm LDR with 2 pins is typically between 3.3V and 5V. This means that the LDR can connect to a variety of voltage sources, including batteries, power supplies, and microcontrollers. The input voltage of an LDR is important because it determines the range of resistance values that the LDR can produce.

Features : –

A 3mm Light Dependent Resistor (LDR) is a type of photoresistor that commonly use in electronics. It is a small, inexpensive component that can use to detect the presence or absence of light. The resistance of an LDR decreases as the amount of light striking it increases. This means that an LDR can use to measure the intensity of light.

3mm Light Dependent Resistors (LDRs) have a number of benefits, including:

• Small size: LDRs are very small, making them easy to integrate into small devices.
• Inexpensive: LDRs are relatively inexpensive, making them a cost-effective way to add light sensing capabilities to a device.
• Easy to use: LDRs are easy to use and can connect to a variety of circuits.
• Sensitive to light: LDRs are very sensitive to light, making them ideal for applications where it is important to detect even small changes in light intensity.
• Wide range of resistance values: LDRs can have a wide range of resistance values, depending on the amount of light striking them. This makes them ideal for applications where it is important to measure the intensity of light.

3mm LDR Specifications : –

Overall, 3mm LDRs are a versatile and cost-effective way to add light sensing capabilities to a device. They are small, easy to use, and sensitive to light, making them ideal for a wide range of applications.

Here are some of the specifications of a 3mm Light Dependent Resistor (LDR):

• Diameter: 3mm
• Number of pins: 2
• Mounting type: PCB through hole
• Maximum operating temperature: +800°C (approx.)
• Dark resistance: 1-20M ohm
• Typical resistance in bright light: 10-100 ohms
• Spectral response: Peak wavelength of 550nm
• Response time: 10-100ms
• Sensitivity: 100-1000 ohms/lux

3mm LDR Applications : –

Here are some of the applications of 3mm LDRs:

• Light sensors
• Photocells
• Light meters
• Automatic light switches
• Security systems
• Toys
• Home automation
• Industrial automation
• Medical devices
• Scientific instruments

Package : –

1 x 3mm LDR Sensor Light Dependent Resistor Sensor

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