MP Motion Sensor (AMN2, 3, 4)

Passive infrared

human detection sensor

with built-in amp.

MP MOTION SENSOR

‘’

FEATURES

1.

pyroelectric sensor modules contain the

necessary functions in a small package (TO-5). These

miniature, high-performance infrared human detection

sensors take the trouble out of circuit design and mounting.

2. Ideal for small-movement detection thanks to quad-type

pyroelectric element.

The quad-type pyroelectric element contained in

has four receptors. Since the detection zone within the

detection range is so precise, even small movements can

be detected.

3. Lenses can be miniaturized because the pyroelectric

element is small

A short focal length is all that’s required even when

detecting at the same distance, because the size of the

pyroelectric element is so small. This means that

high precision is maintained even though the lens is small

and the sensor itself has been miniaturized.

4. Small temperature differences also detected.

detects the temperature difference between the

detection target and its surroundings, and the lowest

required temperature difference to the background is 4

°C

7.2

This means that temperature differences can be accurately

detected not only in winter, when the temperature

differences are large, but also in summer, when

temperature differences are slight.

Standard

type

Slight motion

detection type

Spot type

10 m detection

type

Lens

Lens

Sensor module

IC

PIR element

Chip parts

PC board

Shielded plate

Capacitor

Lens

Quad-type

pyroelectric

element

Focal length

(distance between element and lens)

Representation of detection

Detection zone

Small

movement

Surface temperature: 34

°C 93.2°F

Winter

Floor temperature:

22

°C 71.6°F

Summer

Floor temperature:

30

°C 86.0°F

Large

temperature

difference

Temperature

difference:

12

°C 53.6°F

Small temperature

differences mean

difficult detection.

Temperature

difference:

4

°C 7.2°F

5. Excellent noise resistance (radiation noise, power supply noise)

The entire

circuitry is enclosed in a metal package, which means it has extremely high electromagnetic shielding

capabilities. With proven resistance against power supply noise, it is also resistant against power supply superimposed

noise.

GND

Vd

Radiation

noise

Power supply

superimposed

noise

OUT

ASCTB240E 201201-T

RoHS compliant