Luna Optoelectronics, NORPS-12 LDR (Light Dependent Resistor) 5.4 kΩ Light, 1MΩ Dark, 2-Pin TO-18

  • RS Stock No. 651-507
  • Mfr. Part No. NORPS-12
  • Brand Silonex
Technical Reference
Legislation and Compliance
RoHS Status: Not Applicable
COO (Country of Origin): CN
Product Details

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 include
Smoke detection
Automatic lighting
Control batch counting
Burglar alarm systems


Photodiodes, Silonex

Attribute Value
Minimum Light Resistance 5.4 kΩ
Dark Resistance 1MΩ
Typical Fall Time 55ms
Typical Rise Time 45ms
Resistor Material CdS
Number of Pins 2
Mounting Type Through Hole
Package Type TO-18
Maximum Light Resistance 12.6kΩ
Maximum Operating Temperature +75°C
Minimum Operating Temperature -60°C
Voltage Rating 250 V
Light Resistance Range 5.4 kΩ → 12.6 kΩ
Operating Temperature Range -60 → +75°C
Power Dissipation 50mW
Discontinued product