This is the 20mm variant of the 20mm GL20528 Light Sensitive Photoresistor LDR in Light Dependent Resistors (LDR). Available at ₹66.08 (₹56.00 + GST) with free shipping across India.
20mm GL20528 Light Sensitive Photoresistor LDR
The resistance of 20mm GL20528 Light Sensitive Photoresistor LDR changes with the change in the ambient light exposed on the surface of the sensor. As the light on the sensor increases then the resistance across the two leads decreases. Light Dependent Resistor is a type of photocell which finds excellent use in light sensing device application, whether it is automatic outdoor light ON/OFF switch or indoor automatic light switch; moreover, the 12mm LDR or photoresistor sensor works best in both light and dark regions. The photo-resistor is a staple of electronics. If you need a way to sense the level of ambient light, then there is no easier way to do it without an LDR/photo-resistor.
Two Cadmium Sulphide PhotoConductive Cells with spectral responses similar to that of the human eye. Cell resistance falls with increasing light intensity. Applications of this product include smoke detection, automatic lighting control, batch counting, and burglar alarm systems. Furthermore, some of the applications are given below.
Analog Applications:
- Camera exposure control
- Auto slide focus – dual cell
- Photocopy machines – the density of the toner
- Colorimetric test equipment
- Densitometer
- Electronics scales – dual cell
- Automatic gain control – modulated light source
- Automated rear view mirror
Digital Applications:
- Automatic headlight dimmer
- Nightlight control
- Oil burner flame out
- Streetlight control
- Absence/presence (beam breaker)
- Position sensor
Other applications:
- Annunciator
- Camera automatic photometry
- Electronic toy
- Industrial control
- Light control
- Light control lamp
- Photoelectric control
- Switch
To know more about photo-resistor, click here. What is photo-resistor?
Features:
- Coated with epoxy
- Good reliability
- High sensitivity
- Small volume
- Fast response
- Good spectrum characteristic
- Model: GL20528 ( GM20528 )
- Size: 20mm
- Max. voltage: 500 VDC
- Max. power: 500 mW
- Spectrum Peak Value (nm): 560
- Light resistance ( KΩ) : 10–20 kΩ
- Dark resistance ( KΩ): 2 kΩ.
- Υ value : 0.6.
- Increase response time: 30 mS.
- Decrease response time: 30 mS.
Package Includes :
Technical Specifications
| Model | GL20528 |
|---|---|
| Size | 20mm |
| SKU | AI1059 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The 20mm GL20528 Light Sensitive Photoresistor LDR is a versatile light dependent resistors (ldr) used across a wide range of applications including voltage dividers, current limiting, pull-up/pull-down networks, signal conditioning, and LED current limiting.
Common use cases:
- Limiting current through an LED
- Creating a voltage divider for analog sensing
- Pull-up resistor for I2C communication lines
This product is ideal for electronics students, hobbyists, and engineers.
Technical Tip: Use Ohm's Law (V=IR) to calculate the correct resistor value. Color bands indicate resistance: use an online calculator for quick reference.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Tanya Hegde –
This 20mm GL20528 Light Sensitive Photoresistor LDR is essential for any electronics lab. Good quality components.
Kabir Kohli (verified owner) –
Excellent 20mm GL20528 Light Sensitive Photoresistor LDR! Values are accurate and quality is great. Perfect for my projects.
Darshan Kulkarni (verified owner) –
This 20mm GL20528 Light Sensitive Photoresistor LDR is essential for any electronics lab. Good quality components.
Hemant Saxena (verified owner) –
Love this 20mm GL20528 Light Sensitive Photoresistor LDR. Great variety and all components are genuine. Highly recommended.
Raghav Mehta (verified owner) –
Great quality 20mm GL20528 Light Sensitive Photoresistor LDR. All values are within tolerance. Very reliable.
Sarthak Mukherjee (verified owner) –
Good 20mm GL20528 Light Sensitive Photoresistor LDR. Quality is reliable. Packaging keeps components organized.
Vivek Deshpande (verified owner) –
This 20mm GL20528 Light Sensitive Photoresistor LDR is essential for any electronics lab. Good quality components.
Jai Rajan –
Average 20mm GL20528 Light Sensitive Photoresistor LDR. Most are good quality but found a few out-of-spec pieces.
Daksh Thakur –
This 20mm GL20528 Light Sensitive Photoresistor LDR is essential for any electronics lab. Good quality components.
Ankit Vohra (verified owner) –
Love this 20mm GL20528 Light Sensitive Photoresistor LDR. Great variety and all components are genuine. Highly recommended.
Priya Gill (verified owner) –
Excellent 20mm GL20528 Light Sensitive Photoresistor LDR! Values are accurate and quality is great. Perfect for my projects.
Ravi Ghosh (verified owner) –
Superb 20mm GL20528 Light Sensitive Photoresistor LDR! Using these in all my circuit designs. Never had a failure.
Krishna Naidu –
Very satisfied. My college lab is stocked with these. Excellent value from Zbotic.
Ankur Sharma (verified owner) –
Nice 20mm GL20528 Light Sensitive Photoresistor LDR. Values are accurate. Good assortment for hobby projects.
Jatin Mittal (verified owner) –
Superb 20mm GL20528 Light Sensitive Photoresistor LDR! Using these in all my circuit designs. Never had a failure.
Ankit Joshi (verified owner) –
Superb 20mm GL20528 Light Sensitive Photoresistor LDR! Using these in all my circuit designs. Never had a failure.
Atharv Mehta (verified owner) –
Excellent 20mm GL20528 Light Sensitive Photoresistor LDR! Values are accurate and quality is great. Perfect for my projects.