Dual Elements Passive Infrared Sensor Used for Alarm System D203B

Overview
D203B with big angle windows. It widely used in light sensor.Dual compensated sensing elements are applied to suppress the interference resulting from temperature variation.
Senba Pyroelectric passive infrared sensor with high sensitivity, low noise and reliable performance. We have our own research and development department, with international technology and Hybrid IC technique expertise developed more than 15 years.
Features
Large detection angle
Custom design is available
Higher in cost-performance
Item D203B
Encapsulation Type TO-5
IR Receiving Electrode 2×1mm, 2 elements
Window Size 5×3.8mm
Spectral Response 5—14μm
Transmittance ≥75%
Output Signal[Vp-p] ≥3500mV
Sensitivity ≥3300V/W
Detectivity (D*) ≥1.4 ×108 cmHz1/2/W

Noise[Vp-p] <70mV
Output Balance <10%
Offset Voltage 0.3～1.2V
Supply Voltage 3—15V
Operating Temp -30—70ºC
Storage Temp -40—80ºC
Applications
Lighting Switch
Vending machines
Automatic control
FAQ
1. How far can a motion sensor detect?
PIR D203B can detect up to distances of 8-10M.
2. Do PIR sensors work in the dark?
Yes, passive ir motion sensor work in the dark. The way that a motion sensor detects movement has nothing to do with how light or dark it is in the immediate area. ... Since infrared energy is present and can be detected regardless of the amount of light in the environment, a PIR motion sensor will work just fine in the dark.