PY-ITV-FLAME TO39(2+1) (REV. 5.0)
Thin Film Pyroelectric Flame Sensor
Introduction
The Pyreos thin film pyroelectric flame detectors offer
exceptionally high responsivity, a wide field of view of
typically 100 (*subject to filter band pass
specification) and class leading rapid recovery from
thermal and electrical shocks (<1 second downtime).
This current mode sensor has excellent signal to
noise at the signature 8-10 Hz flicker range of a flame,
and can provide accurate discrimination of flame
sources in triple IR flame detection systems. The
sensor element is built into a low noise circuit that has
an internal CMOS op amp with a 10G feedback
resistor outputting a voltage signal centred around
half the supply rail.
Sensor Characteristics Electrical Characteristics
Filter aperture 5.2 mm x 4.2 mm Max. Voltage (+V) 8.0 V
Element size 1000 m x 1000 m Min. Voltage (+V) 2.7 V
Package TO39 Output voltage normalised around mid-rail
1
Responsivity 150,000 V/W Microphonics S ~2 V/Hz at 10 Hz
vib
1 8
D* 3.5 x 10 cmHz/ W Time Constant ~12 ms
Operating
1
Noise Mean 70 VHz -40 to +85 C
Temperature
2
Field of View Typical 100 Storage Temperature -40 to +110 C
Op-Amp with 10 G feedback resistor
1
10 Hz, 500 K, room temperature, without
As per Filters Available
window and optics Filter
table
2
With reference to filter used in PY0573
Frequency Characteristics
For V across horizontal For V across vertical window For V across diagonal window
window aperture aperture aperture
Note: Normalised polar plots show max FoV achievable along x,y axis and diagonal without any
filter applied.
Please note: the information contained in this document is subject to change without further notification. Pyreos reserves the right to alter the
performance and any resulting specification. Pyreos may choose not to supply any engineering sample devices as a commercial product. No
responsibility is accepted for any consequential loss incurred. Pyreos Ltd, SMC, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK. Tel:
+441316507009, www.pyreos.com
1
PY-ITV-FLAME TO39(2+1) (REV. 5.0)
Order Information
Please quote PY-ITV-FLAMETO39(2+1) and your desired filter combination or quote specific part number
PYXXXX as per filter table.
Contact: sales@pyreos.com
Package Information
Filter window size
Note: Ensure that the sensor base is not in contact with the PCB in order to avoid shorts.
Filters Available
Part number PY1580 PY0575 PY0573 PY1600 PY0574 PY1601 PY0576
3.38 m 3.91 m 4.35 m 4.48 m 4.55 m 5.0 m 5.5 m
Filter name
bandpass bandpass bandpass bandpass band pass cut on cut on
Cut on wavelength typical
3.295 3.865 4.05 4.17 4.34 5.0 5.5
(m)
Cut off wavelength typical
3.475 3.955 4.65 4.79 4.76 - -
(m)
Note: An additional window is required to provide high wavelength blocking (above 8.0 m) and thermal shielding.
Please note: the information contained in this document is subject to change without further notification. Pyreos reserves the right to alter the
performance and any resulting specification. Pyreos may choose not to supply any engineering sample devices as a commercial product. No
responsibility is accepted for any consequential loss incurred. Pyreos Ltd, SMC, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK. Tel:
+441316507009, www.pyreos.com
2
Package dimensions Top View
Internal Scematic Bottom View