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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.

Gentec-EO Discrete Pyroelectric Sensor QS3-IF

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Specifications

Detector Type: Pyroelectric
Spectral Range: 0.1 – 1000 um
Size: 3 mm
Maximum Power: 0.05 W
Noise Equivalent Power: 0.08 uW
Noise Equivalent Power: 80 nW
Current Responsivity: 0.5 μA/W
Thermal Frequency: 0.8 Hz
Voltage Responsivity: 50 V/W
Feedback Resistor: 100 MΩ
Supply Voltage: ±12 V
Aperture Diameter: 3 mm
Dimensions: 9.1Ø x 6.4D mm
Weight: 0.001 kg
Package: TO5

Got questions about specs? Use the inquiry form to ask.

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Features

  • Broad Spectral Response: Capable of detecting wavelengths from 0.1 to 1000 µm.
  • Product Variety: Choose from four families:
    • QS-L: Discrete pyro detectors with low noise level.
    • QS-H: Discrete pyro detectors 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 Integration: Available in TO5 and TO8 packages for seamless integration into existing systems.
  • Large Area Sensors: Features 5 mm and 9 mm diameter pyroelectric sensors for easier optical alignment.
  • Optional IR Windows: Choose from various IR windows to suit your needs:
    • 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: 80 nW
    • Spectral range: 0.1 - 1000 μm
    • Current responsivity: 0.5 μA/W
    • Thermal frequency: 0.8 Hz
    • Voltage responsivity: 50 V/W
    • Feedback resistor: 100 MΩ
    • Supply voltage: ±12 V
  • Physical Characteristics:
    • Aperture diameter: 3 mm
    • Absorber: MT
    • Dimensions: 9.1Ø x 6.4D mm
    • Weight: 0.001 kg
    • Package: TO

Applications

  • Thermal measurements
  • Laser optics
  • Metrology
  • Inspection
  • Biomedical
  • Military

Frequently Asked Questions

What are the advantages of using a pyroelectric detector over other IR detectors?
The advantages of using a pyroelectric detector include room temperature operation, broad spectral response, high sensitivity, and fast response.
What are the different configurations of the Gentec-EO Discrete Pyroelectric Sensor?
The Gentec-EO Discrete Pyroelectric Sensor is provided in two configurations: high sensitivity or high average power.
What are the measurement capabilities of the Gentec-EO Discrete Pyroelectric Sensor?
The Gentec-EO Discrete Pyroelectric Sensor has an aperture diameter of 3 mm, absorber MT, dimensions of 9.1Ø x 6.4D mm, weight of 0.001 kg, and is packaged in TO5.
What are the physical characteristics of the Gentec-EO Discrete Pyroelectric Sensor?
The physical characteristics of the Gentec-EO Discrete Pyroelectric Sensor include a maximum average power of 50 mW, noise equivalent power of 80 nW, spectral range of 0.1 - 1000 μm, current responsivity of 0.5 μA/W, thermal frequency of 0.8 Hz, voltage responsivity of 50 V/W, feedback resistor of 100 MΩ, and supply voltage of ±12 V.
What is a pyroelectric detector?
A pyroelectric detector is a thermal detector that produces a current output proportional to the rate of change of temperature when exposed to radiation.

Got more questions? Use the inquiry form to ask the supplier directly.

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