20mm - LDR (Light Dependent Resistor)

DESCRIPTIONS

LDR (Light Dependent Resistor) is a resistor whose resistance varies inversely with the amount of light falling on it. It is also known as photo resistor, photocell, photo conductive cell etc. LDR are available in 5mm, 12mm and 20mm dimensions.

LDR is made of high resistance semiconductor material. Semiconductor material used for the photo resistors is cadmium sulphide, CdS. When it’s dark, LDR has high resistance known as dark resistance. Usually dark resistance will be in the range of mega ohms. When light falls on LDR, resistance reduce to kilo ohms range.

Working principle: when light falls on LDR i.e. when photons fall on LDR, valence band electrons get sufficient energy to get excited to the conduction band. Incident photons must have energy greater than the forbidden energy gap of the semiconductor. When light having enough energy falls on the device, more electrons will get excited to conduction band. As the number of free electrons increases, more current flows through the circuit. Hence it is said that, as light falls on LDR, resistance decreases.

FEATURES

• Epoxy Coated
• High reliability
• Highly Sensitivity
• Quick response
• Good spectrum characteristic
• Size: 20mm 

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20mm - LDR (Light Dependent Resistor)

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Depending upon the weight and destination, the shop will automatically calculate shipping charges for the order (refer to Shipping Charges for more details). It normally takes 1-10 days to reach any location in India.

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Furthermore, no warranty will apply if the product has been subjected to misuse, static discharge, neglect, accident, modification, or has been soldered or altered in any way. Due to the nature of the products and the competitive prices that we offer we are unable to provide a return without our strict valid examination.

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Return:

We make our best efforts to provide accurate descriptions and the best quality products as mentioned on the website. We can not assure the customer that the descriptions are accurate as they come from third-party sources. For any queries regarding the product, you are encouraged to contact our Customer Support.

In the interest of protecting our customers from shipping damage, item mismatch or missing parts, we provide customers with 7 days from the date of delivery to report the issue to our customer relations executive via the chat window available on our website or reach us on + 91 86066 50999, our Customer Support engineers will verify the issue and guide you through the Return/Refund Process. 

All returns must include a copy of the original packing list that came with your shipment.

On receiving the product, our experts will identify the cause of the damage and proceed with the return.

The replacement items will be sent to the customer immediately with shipping costs borne by Tomson Electronics. In case the product is out of stock during the process and the customer is no longer in a position to wait, we will provide a 100% refund to the customer.

All refunds will be received by the customer in a gap of 2-3 days from the approval of your refund.

Furthermore, no warranty will apply if the product has been subject to misuse, static discharge, neglect, accident, modification, or has been soldered or altered in any way. Due to the nature of the products and the competitive prices that we offer we are unable to provide order cancellation and return without our strict valid examination.

Limits of Responsibility: 

We accept no responsibility for the improper installation of products. Electrical polarity must be properly observed in hooking up electrical components.

Tomson Electronics reserves the right to take the final decision on all cancellation and refund requests.

IMPORTANT

Generally, our webstore predicts accurate shipping charges but in the case of any problem or error, we may recalculate shipping charges and will only dispatch such orders after acceptance from you. If you are not accepting the shipping charges, you will get a full refund.

The above-mentioned shipping time is the best case. Your package may get delayed due to processing, weather conditions, or other reasons. We do not take any responsibility to deliver the packages on time as it completely depends on the service provider.