Gentec-EO Discrete Pyroelectric Sensor QS9-IF

Name: Gentec-EO Discrete Pyroelectric Sensor QS9-IF
Brand: Gentec-EO
Availability: InStock

Description

Our pyroelectric detectors are a class of room temperature thermal detectors that produce a current output that is directly proportional to the rate of change of temperature when exposed to a source of radiation.

They are best described by an AC current source, capacitor and resistor. Their current output is governed by the equation I = p(T)·A·dT/dt, where I is current, p(T) is the pyro coefficient, A is the area as defined by the front electrode, and dT/dt is the rate of temperature change of the pyro crystal.

The advantages of a pyroelectric detector over other IR detectors are: room temperature operation, broad spectral response, high sensitivity (D*) and fast response (sub-nsec into 50 Ω).

Our passive discrete pyroelectric detectors range from 1 to 9 mm in diameter and are provided in two configurations: high sensitivity or high average power. They present a pyroelectric detector element covered with our metallic coating (MT) and are packaged in a miniature TO-5 or TO-8 can. The diagram shown left identifies the pin-out for both types of detectors.

Our organic black coating (BL), increases the optical absorption and helps flatten the spectral response. We also offer a number of permanent IR Windows that can be added to the TO can. These discrete pyro detectors are ideal for pulsed laser applications.

Specifications

Detector Type:	Pyroelectric
Spectral Range:	0.1 – 1000 um
Size:	9 mm
Maximum Power:	0.05 W
Noise Equivalent Power:	0.16 uW
Max Average Power Density:	5.0E-5 kW/cm2
Maximum Average Power:	50 mW
Spectral Range:	0.1 - 1000 μm
Current Responsivity:	0.25 μA/W
Thermal Frequency:	0.25 Hz
Voltage Responsivity:	25 V/W
Feedback Resistor:	100 MΩ
Supply Voltage:	±12 V
Aperture Diameter:	9 mm
Dimensions:	15.2Ø x 6.4D mm
Weight:	0.0015 kg
Package:	TO8

Download Data Sheet

Features

Broad Spectral Response: Covers a wide range from 0.1 to 1000 µm, making it versatile for various applications.

Four Product Families:
- QS-L: Discrete pyro detectors with low noise level.
- QS-H: Discrete pyro detectors designed for high average power.
- QS-IF: Hybrid pyro detectors in current mode with fast response.
- QS-IL: Hybrid pyro detectors in current mode with low noise level.

Easy to Integrate: Available in TO5 and TO8 packages, making them compact and easy to incorporate into existing systems.

Large Area Sensors: Features 5 mm and 9 mm diameter pyroelectric sensors for easier optical alignment.

Multiple IR Window Options:
- Quartz: 0.2 – 3.5 µm
- Barium Fluoride: 0.2 – 17.5 µm
- Sapphire: 0.1 – 7.0 µm
- Silicon: 1.2 – 9.0 µm and 22 – 100 µm
- AR Germanium: 1.8 – 23 µm (10.6 µm peak)

Measurement Capabilities:
- Maximum Average Power: 50 mW
- Noise Equivalent Power: 160 nW
- Current Responsivity: 0.25 μA/W
- Thermal Frequency: 0.25 Hz
- Voltage Responsivity: 25 V/W
- Feedback Resistor: 100 MΩ
- Supply Voltage: ±12 V

Physical Characteristics:
- Aperture Diameter: 9 mm
- Absorber: MT

Applications

Thermal measurements

Laser optics

Metrology

Inspection

Biomedical

Military

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since 2014

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Frequently Asked Questions

What are the advantages of a pyroelectric detector over other IR detectors?

Pyroelectric detectors have room temperature operation, broad spectral response, high sensitivity, and fast response.

What are the dimensions of the Gentec-EO Discrete Pyroelectric Sensor QS9-IF?

The QS9-IF comes in two configurations: high sensitivity or high average power and ranges from 1 to 9 mm in diameter.

What are the measurement capabilities of the QS9-IF?

The QS9-IF has a maximum average power of 50 mW, noise equivalent power of 160 nW, spectral range of 0.1 - 1000 μm, and current responsivity of 0.25 μA/W.

What are the physical characteristics of the QS9-IF?

The QS9-IF has an aperture diameter of 9 mm, absorber MT, dimensions of 15.2Ø x 6.4D mm, and weight of 0.0015 kg. It is packaged in a TO8 can.

What is a pyroelectric sensor?

A pyroelectric sensor is a thermal detector that produces a current output proportional to the rate of change of temperature when exposed to radiation.