Luna Optoelectronics 硫化镉 光敏电阻 NSL-19M51, 20 kΩ → 100 kΩ亮电阻, 20MΩ暗电阻, 50mW, 2针 TO-18封装

CdS cell, NSL series, Silonex

Light dependent resistors are two cadmium sulphide (cDS) photoconductive cells with responses similar to that of the human eye. The cell resistance falls with increasing light intensity.

Solid-state photosensor that uses photoconductivity to lower resistance value when irradiated with light
Ceramic package with sensitivity up to 690 nm
TO-5 and TO-18 packages
Suitable for use in applications like street light auto-flashers and camera light metres

Applications

Applications include
Smoke detection
Automatic lighting
Control batch counting
Burglar alarm systems