SKU: SENS-0821
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MemsFrontier MPY20-A112T Infrared Pyroelectric Gas Sensor (CO2) - TO-39 Package

₹4,369.00 (Inclusive of all taxes)
Out of Stock

The MemsFrontier MPY20-A112T is a dual-channel, voltage-mode infrared pyroelectric gas sensor designed for CO2 detection. It utilizes a lithium tantalate single crystal sensing element for high stability and operates from 2-10V, making it suitable for integration into industrial and medical monitoring systems.

Features

  • Dual-channel pyroelectric sensor with integrated thermal compensation for stable output.
  • Lithium tantalate (LiTaO3) single crystal sensing element with a high Curie temperature (>600°C).
  • Wide operating voltage range of 2-10V DC with a 47kΩ optimum output load.
  • TO-39 metal package ensuring robust performance from -40°C to +80°C.
  • Excellent spectral response consistency across the 1-20μm wavelength range.

Out of stock

Description

The MPY20-A112T pyroelectric gas sensor employs a high-performance lithium tantalate crystal as its sensitive element. This material offers a small relative dielectric constant and a high specific detection rate, enabling precise infrared absorption measurement for gases like CO2. Its pyroelectric coefficient remains remarkably stable across a broad temperature range, resulting in a minimal output signal drift of only 1-2‰ per degree Celsius.

Designed in a TO-39 package with a JFET integrated for impedance matching, the sensor operates in voltage mode. It features a fast thermal time constant of 150 ms and a high internal feedback resistance of 50 GΩ, making it highly responsive to changes in infrared radiation. This sensor is engineered for applications requiring reliable, long-term gas concentration monitoring without frequent recalibration.

Key Features

  • Dual-element sensing structure with built-in thermal compensation for drift reduction.
  • High-stability lithium tantalate (LiTaO3) pyroelectric crystal core.
  • Optimized for voltage-mode operation with a recommended 2-10V supply.
  • Robust TO-39 metal housing for consistent performance in harsh environments.
  • Low temperature coefficient ensures signal stability across the -40°C to +80°C range.
  • Fast response time with a thermal time constant of 150 milliseconds.
  • High input impedance (50 GΩ) paired with an integrated JFET buffer.
  • Consistent spectral response across the infrared spectrum (1-20μm).

Applications

  • Medical gas analyzers and capnography equipment for patient monitoring.
  • Industrial safety systems for CO2 leak detection and process control.
  • HVAC and building automation for indoor air quality (IAQ) management.
  • Agricultural greenhouse climate control and CO2 fertilization monitoring.
  • Scientific research instrumentation for infrared gas spectroscopy.

Technical Specifications

Manufacturer Part NumberMPY20-A112T
Sensing Element MaterialLithium Tantalate (LiTaO3) Single Crystal
Sensing Element Size1.6 x 1.6 mm²
Window Size2.5 x 2.5 mm²
Operating Voltage2 to 10 V DC (Recommended)
Optimum Output Load47 kΩ
Feedback Resistance50 GΩ
Thermal Time Constant150 ms
Operating Temperature-40°C to +80°C
Storage Temperature-40°C to +80°C
Package TypeTO-39
Output ModeVoltage Mode
Channel ConfigurationDual Channel
Integrated ComponentJFET
Spectral Response Range1 to 20 μm

Frequently Asked Questions

What is the recommended operating voltage for the MPY20-A112T sensor?

The MPY20-A112T is designed for a recommended operating voltage range of 2 to 10 volts DC. While it can tolerate up to 12V, optimal performance and signal stability are achieved within the 2-10V range. Always refer to the datasheet for specific biasing and circuit design guidelines.

Does this sensor module include any connectors or signal conditioning circuitry?

No, the MPY20-A112T is supplied as a standalone sensor in a TO-39 package. It does not include a connector, breakout board, or signal converter. You will need to design an external circuit with the recommended 47kΩ load resistor and appropriate biasing for the integrated JFET to interface it with your data acquisition system.

What is the purpose of the dual-channel design and thermal compensation?

The dual-channel configuration allows for differential measurement, which helps cancel out common-mode noise and environmental drift. The integrated thermal compensation minimizes the sensor's output signal variation due to ambient temperature changes, providing a stable baseline crucial for accurate long-term gas concentration monitoring.

Can this sensor be used for detecting gases other than CO2?

While optimized for CO2 detection within the 4.26μm absorption band, the MPY20-A112T's broad spectral response (1-20μm) makes it sensitive to other infrared-absorbing gases. However, specific application requires careful optical filtering and calibration for the target gas. Its primary design and published performance data are for CO2 measurement.

Package Includes

  • 1 x MemsFrontier MPY20-A112T Infrared Pyroelectric Gas Sensor

Additional Information

Weight 0.01 kg
Dimensions 5 × 4 × 2 cm