PIR325 Datasheet PDF – Infrared Pyroelectric Sensor

Part Number: PIR325

Function: Infrared Pyroelectric Sensor

Package: TO-5 Type

Manufacturer: Glolab Corporation

Image and Pinouts:

PIR325 datasheet

 

Description

This is Infrared Pyroelectric Sensor. The PIR325 sensor has two sensing elements connected in a voltage bucking configuration. This arrangement cancels signals caused by vibration, temperature changes and sunlight. A body passing in front of the sensor will activate first one and then the other element as shown in figure 2 whereas other sources will affect both elements simultaneously and be cancelled. The radiation source must pass across the sensor in a horizontal direction when sensor pins 1 and 2 are on a horizontal plane so that the elements are sequentially exposed to the IR source.

Features

1.  With built-in window filter

2.  After 72 db amplifier gain

3.  At source pin 2 with 5 volts and 100K load

4.  Well filtered power supply

Pinout:

1. Drain

2. Source

3. Ground

Specifications and Dimensions :

ELEMENT SIZE 2 x 1, 2 elements

SPECTRAL RESPONSE μm (1) 5 ~ 14

NOISE μVpp 20

OUTPUT mv pp (2) 3900

OFFSET VOLTAGE volts (3) 1.0

SUPPLY VOLTAGE volts (4) 2.5 ~ 15

OPERATING TEMPERATURE ° C -30 ~ 70

STORAGE TEMPERATURE ° C -40 ~ 80

Other data sheets are available within the file: PIR-325

PIR325 Datasheet PDF Download


PIR325 pdf