GM 20537 photoresistor Φ20mm voltage 500VDC 20-50KΩ dark resistance 1MΩ applied in toys, lamps, cameras, light detectors

GM205series photoresistor

A photoresistor is a resistor made of a semiconductor material whose conductivity changes linearly as the illuminance changes. Photoresistor is widely used in toys, lamps, cameras and other industries.

Structure diagram
Unit: mm

Performance and characteristics

Epoxy resin package has Good reliability

Small size High sensitivity

Fast reaction speed Good spectral characteristics

Scope of application

The camera automatically measures light Photoelectric control
Indoor light control Alarm apparatus
Industrial control Light-controlled switch
Electronic toy Light control lights

Model and specification

Test condition

Maximum applied voltage: the maximum voltage that can be continuously applied to a component in the dark;
Dark resistance: resistance value of 10 seconds after 10Lux illumination is turned off;
Maximum power consumption: the maximum power consumption when the ambient temperature is 25℃;
Bright resistance: After 2 hours of irradiation with 400-600Lux, the test value under 10Lux light of standard light source (color temperature 2854K);
Gamma value: The logarithm of the ratio of the standard

resistance value at 10Lux and 100Lux.
Lg (R10/R100)
Gamma = =Lg(R10/R100)
Lg (100/10)
R10 and R100 are resistance values of 10Lux and

100Lux illumination respectively (tolerance of γ is ±0.1)

Main characteristic curve

Illumination-resistance characteristic curve

Matters needing attention

1. This product is packed with environmentally friendly materials, 50 pieces of small packaging, 200 pieces of large packaging;
2. Avoid storing the product in humid and high temperature environment;
3. It should be stored in a non-erosive gas, otherwise it will lead to oxidation of the tin layer and decrease of weldability.
Therefore, after opening the package should be used as soon as possible
4. Working environment humidity ≦95%
5. Welding time as short as possible; Soak the tin liquid (Sn63 Pb37) at 230℃ to 5mm away from the CdS photoresistor body, and maintain 3-5s.
6. Note that the lead welding position should be more than 4mm away from the ceramic base.

Product Description:

The Light Dependent Resistor (LDR) is a 3mm series photoresistor, designed to detect light and control electrical signals. It is a light-sensitive resistor that can be used to measure light intensity and adjust electrical signals. The LDR has a peak response of 540nm and a dark resistance of 2-3 MΩ. It has a power consumption of 50 Nmw and a model number of GM3537. As a light-sensitive resistor, the LDR provides a reliable and accurate way to measure light intensity and can be used in a wide range of applications.

Features:

• Product Name: Light Dependent Resistor
• Max VoltageVDC: 100 V
• Model: GM3537
• Environment temperature℃: -30~+70°C
• Lead Length: 3mm
• Dark resistance: 2-3 MΩ
• Size: 3mm series photoresistor, 7mm series photoresistor

Technical Parameters: