Pyreos
Pyreos is the world’s only thin film pyroelectric sensor supplier. Pyreos was formed in 2007 aiming at the growing market for e.g. advanced infrared sensor technology and spectroscopic analysis. Siemens contributed seed technology in the form of proprietary developments and a patent portfolio for ceramic thin film MEMS IR sensor technology. Siemens had already invested over 75 man years (around €10m) in this technology and spun it out into Pyreos to ensure broader market-based growth. Since then, Pyreos has optimised the sensor technology and combined it with additional semiconductor process developments and packaging techniques to create a new range of infrared sensor products. Pyreos has also continued to develop the patent portfolio and now has 27 patent families.
This post lists the components offered by Pyreos for developing miniaturised mid infrared (MIR) sensors. Sensors that can be incorporated in xSpectre’s handheld and mobile sensing system. The components are available from Mouser.
Spectral Filters
Available filters for Pyreos thin film pyroelectric sensors.
| CWL µm | HPB nm | Use |
| 2.55 | 90 | |
| 2.9 | 300 | |
| 3.3 | 160 | CH4 |
| 3.33 | 160 | H-C |
| 3.38 | 190 | H-C |
| 3.7 | 110 | Reference |
| 3.9 | 200 | N2O |
| 3.91 | 90 | Reference |
| 4.26 | 180 | CO2 |
| 4.43 | 60 | CO2 (Special) |
| 4.64 | 90 | CO |
| 4.64 | 180 | CO (Narrow) |
| 4.85 | 90 | |
| 4.9 | 130 | Reference |
| 5.3 | 180 | NO |
| 5.6 | 80 | Milk, Reference |
| 5.73 | 80 | Milk, Fat |
| 6.2 | 200 | NO2 |
| 6.46 | 130 | Milk, Protein |
| 6.7 | 120 | Milk, Reference |
| 7.3 | 200 | SO2 |
| 8.01 | 440 | |
| 8.42 | 180 | Refrigerants, Anaesthetics |
| 8.55 | 180 | Anaesthetics |
| 8.75 | 220 | Anaesthetics |
| 8.95 | 330 | Refrigerants |
| 9.5 | 400 | Sugar, Ethanol |
| 9.61 | 150 | Milk, Lactose, Sugar |
| 9.65 | 220 | Anaesthetics |
| 10.27 | 210 | |
| 12.23 | 210 | Anaesthetics |
Development boards
PY0234 Analog TO-39 CO2 gas sensing evaluation Kit
This seems to be the same (or contain) PY0430. When searching on Mouser, PY0430 appears as the search result.
PY0430 Optical Sensor Development Tools
Optical Sensor Development Tools Development Board for CO2 Gas Sensing; Includes Pyreos dual channel CO2 sensor PY0234, IR Emitter PY0735 (sapphire window, with reflector), brass gas cell (5 cm), PCB with microcontroller and ADC, 9 V power supply, micro USB cable and software CD.
The PY0430 Optical Sensor Development Tools has a lead time of 6 weeks and costs 1211 €.
PY3090 - Standalone board
Can not find this board, neither at Pyreos nor at Mouser, despite being part of the manual for PY3091 (see net sectiom).
PY3091 Infrared analog TO-3 9 sensor evaluation board
The PY3091 analog evaluation board has a lead time of 6 weeks and costs 535 €.
TO-39 analogue sensors
The analogue TO-39 packaged sensors are available as single, dual & quad channel. A range of standard filter combinations are directly available; other combinations can be ordered.
PY0213 single (3300 nm)
Infrared Detectors Single Channel Sensor; Filter: CH4 (3.30um/160nm), €46.
PY0293 single (3.375)
Infrared Detectors Single Channel Sensor; Filter: Filter: HydroCarbons (3.375um/190nm), €46.
PY0275 single (3.91)
Infrared Detectors Single Channel Sensor; Filter: Reference (3.91um/90nm), €46.
PY0175 single (4.26)
Infrared Detectors Single Channel Sensor; Filter: CO2 (4.26um/180nm), €46.
PY0211 single (4.64)
Infrared Detectors Single Channel Sensor; Filter: CO (4.64um/180nm), €46.
PY0212 single (4.64)
Narrow band version of PY0211. Infrared Detectors Single Channel Sensor; Filter: CO (4.64um/90nm), €46.
PY0253 single (5.3)
Infrared Detectors Single Channel Sensor; Filter: NO (5.30um/180nm), €59
PY0254 single (7.3)
Infrared Detectors Single Channel Sensor; Filter: SOx (7.30um/200nm), €59
PY1456 single (10.27)
Not available from Mouser.
PY0317 dual (3.30 & 3.91)
PY2486 dual (3.33 & 3.91)
Possible to use for testing and evaluation. (Available)
Infrared Detectors Dual Channel Sensor; Filters: HC (3.33um/160nm); Reference (3.91um/90nm), €57.
PY0261 dual (3.37 & 3.91)
Possible to use for testing and evaluation. (Available)
Infrared Detectors Dual Channel Sensor; Filters: HC (3.375um/190nm); Reference (3.91um/90nm), €57.
PY2343 dual (3.91 & 4.26)
Possible to use for testing and evaluation. (Available)
Infrared Detectors Dual CO2 sensor; Filters: CO2 (4.26um/180nm); Reference (3.70um/110nm, €57)
PY2572 dual (4.90 & 4.26)
Possible to use for testing and evaluation. (Available)
Infrared Detectors Dual Channel Sensor; Filters: CO2 (4.26um/180nm); Reference (4.90um/130nm), €57)
PY2197 dual (5.73 & 5.60)
Infrared Detectors Fat A (5.73um/80nm) Fat A Ref (5.60um/80nm), €235
PY2544 quad (3.375, 3.91um, 4.26um & 4.64)
Possible to use for testing and evaluation (Available).
PY2213 quad (3.90, 3.90, 4.26 & 8.416)
PY2435 quad (8.75, 9.65, 12.25 & 8.55um)
PY0235 quad (4.26, 4.64, 3.30 & 3.91)
Not Available, lead time 20 weeks.
System setup for analogue testing
To test a quad (4) band solution using analogue sensors, the following breakout boards and sensors are needed:
| item | price ($) |
| PY3091 development breakout board | 535 |
| PY0430 development tool | 1211 |
| PY2544 quad sensor | 248 |
| PY2435 quad sensor | 302 |
| PY2343 dual sensor | 57 |
| PY2572 dual sensor | 57 |
| Boston electronics IR emitter HSL-5-115 (3.0-4.5 µm) | 30 |
| Boston electronics IR emitter IR-75 (2) + driver | 600 |
| Total |
SMD development breakout board (for digital sensors)
To test different digital spectral sensors intended for Surface Mounted Device (SMD) for breakout boards or printed circuit boards (PCBs), Pyreos has developed a breakout board available from Mouser at €382. The next sections lists the digital SMD products attached to a connector that fits with the SMD breakout board.
Digital Sensors
When writing this in July 2021, the digital sensors are restricted to broad band (e.g. motion detectors) and narrow band sensors from 3300 to 5300 nm as listed below.
EPY12221-B1 CH4 (3300 nm)
EPY12221-B1 €35
EPY12211-B1 Reference (3910 nm)
EPY12211-B1 €35
EPY12231-B1 CO2 (4260 nm)
EPY12231-B1 €35
EPY12251-B1 CO2 (4480 nm)
CO2 Optimised for uniform sensitivity across FoV
EPY12251-B1 €35
EPY12241-B1 CO (4640 nm)
EPY12241-B1 €35
EPY12261-B1 NO (5300 nm)
EPY12261-B1 €35
System setup for digital SMD testing
To test a quad (4) band solution using digital SMD’s, the following breakout boards are needed:
| item | price ($) |
| development breakout board | 382 |
| EPY12221-B1 CH4 (3300 nm) | 35 |
| EPY12211-B1 Reference (3910 nm) | 35 |
| EPY12231-B1 CO2 (4260 nm) | 35 |
| EPY12261-B1 NO (5300 nm) | 35 |
| EMIRS200 IR-emitter | 200 |
| Total cost |
Additional single breakout boards available at €35 each.