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4 Pins Passive Infrared Sensor BL412 for Alarm System

Senba Sensing Technology Co.,Ltd. is a professional pir sensor manufacturers. We provide Infrared Thermopile Sensor, Digital PIR Sensor, intelligent pir sensorand so on. Want to know about pir am312 datasheetand difference between ldr and phototransistor? Please contact us.

Overview

Senba PIR Motion Sensors are passive infrared type sensors. Passive infrared sensor working temperature is -20~ 85℃. There are 3type for PIR pins, 3pins, 4pins, 6pins. For 3 pins type, 2s not adjustable. For 4pins, delay time adjustable. For 6pins, delay time, sensitivity, lighting adjustable.

Features

Robust Design Against False Starts

Low Curvature Lens

Technical Data

  1. Maximum Ratings

Characteristics

Symbol

Unit

Remarks

Supply Voltage

VDD

-0.3

V

Working Temperature

TST

-20

85

Into

-100

100

mA

Storage Temperature

TST

-40

125

Characteristics

Symbol

Type

Unit

Remarks

Supply Voltage

VDD

3

V

IR=0.5mA

Working Current

IDD

9

11

μA

Sensitivity

VSENS

90

μA

Output REL

Output Low Current

IOL

10

mA

VOL<1V

Output High Current

IOH

-10

mA

VOL>(VDD-1V)

Lock time

TOL

s

On-time

TOH

2

3600

s

ONTIME

Input voltage

0

VDD

V

0Vto ¼ VDD

Input Bias Current

-1

1

μA

Oscillator & Filter

Low pass filter cut-off frequency

7

Hz

High pass filter cut-off frequency

Hz

Oscillator frequency on Chip

FCLK

64

kHz

Interior Block Diagram

Application

Intelligent security- burglar alarm

Wireless infrared detection alarm, uses advanced signal analysis and processing technology. When the intruder enters through the detection area, it sends alarm signal to control panel.

The PIR sensor is suitable for home, residential area, factory, shopping mall, warehouse, and offices.

FAQ

  1. Passive alarm sensors?

The sensor is called passive because it doesn't emit light to get measurements. The sensor in PIR is actually split into two parts. The reason for that is to measure motion. ... The sensor is also sensitive enough to even detect IR radiation source movement while the object is already in it's field of view.

Most low-cost motion detectors can detect up to distances of at least 15 feet (4.6 m).



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