4pins Digital Smart Pyroelectric Detector BS412

Overview

Senba is one of the most professionalPIR sensor manufacturersfor more than 15 years. We are the most advanced factory with complete categories. With strong R&D center, there are digital type and analog type, dual elements and four elements for you choose. The market cover domestic market, Korean, Amertica, Turkey and Europe.

BS412 is a newest smart digital motion detector with a small window size. Pyroelectric motion sensoroffers a complete motion detector solution, with all electronic circuitry built into the detector housing. Only a power supply and power-switching components need to be added to make the entire motion switch.

BS412 includes the time setting only.

Features

Built-in filter, screen the interference by other frequency

Excellent power supply rejection, Insensitive to RF interference

Technical Dataof pyroelectronic infrared sensor

Characteristics	Symbol			Unit	Remarks
Supply Voltage	VDD	-0.3		V
Working Temperature	TST	-20	85	°C
	Into	-100	100	mA
Storage Temperature	TST	-40	125	°C

Characteristics	Symbol		Type		Unit	Remarks
Supply Voltage	VDD		3		V	IR = 0.5mA
Working Current	IDD	9		11	μA
Sensitivity	VSENS		90		μV
Output REL
Output Low Current	InOL	10			mA	VOL<1V
Output High Current	1NC			-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

Applications

home security systems

As its ability to sense warm, moving objects such as people walking into a room is coupled with simplicity and cost effectiveness.

FAQ

PIR-based Motion Detection: In this case motion is detected by means of a PIR sensor, a passive infrared sensor. This sensor detects emitted infrared energy from objects (humans and animals, but also cars) in the form of heat.

Yes, motion sensors 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.

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