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LDR 10 mm (Photoresistor)

Name: LDR 10 mm (Photoresistor)
Price: 10.0 EGP

10 mm LDR (Photoresistor) – Light-Dependent Resistor

Ideal for light-sensing applications, this 10 mm CdS photoresistor (LDR) reliably changes resistance with light intensity. Perfect for DIY electronics—like light meters, night lights, and automatic lighting systems.

📊 Technical Specifications

Parameter	Value
Diameter	10 mm
Dark Resistance	1–8 MΩ depending on model
Spectral Peak	~540–560 nm (green light)
Max Voltage	150–250 V DC (typical)
Power Rating	100–250 mW
Response Time	~20 ms rise, ~30–120 ms fall
Operating Temperature	–30 °C to +70 °C
Package	Epoxy-encapsulated through-hole with 0.5 mm leads

💡 Key Features

Compact 10 mm photosensitive surface for improved accuracy
High sensitivity in low light (high dark resistance)
Durable, epoxy-sealed housing
Versatile for light-activated electronics

🔧 Arduino Wiring Guide

Parts needed: LDR + 10 kΩ resistor → form voltage divider.


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5 V ── LDR ── A0 ── 10 kΩ ── GND

Sample Arduino code:

cpp
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const int LDRpin = A0;
void setup() {
  Serial.begin(9600);
}
void loop() {
  int val = analogRead(LDRpin);
  Serial.println(val);
  delay(500);
}

Use this to build light meters, automatic LEDs, etc. youtube.com+12projecthub.arduino.cc+12d229kd5ey79jzj.cloudfront.net+12 components101.com+3en.wikipedia.org+3d229kd5ey79jzj.cloudfront.net+3 createlabz.store+12theorycircuit.com+12youtube.com+12 youtube.com+5reddit.com+5hub360.com.ng+5