ST60 TO-5

Features

A single-channel silicon-based thermopile provides lowest cost solutions in a small active area of 0.61mm x 0.61mm in a TO-5 package. Time constant of 18ms with Nitrogen encapsulation gas. Delivers a very low Temperature Coefficient of Responsivity of -0.04%/°C. This detector has a very short thermal shock response to ambient temperature change.

Applications

Excellent for non-contact temperature, fire suppression, horizon sensor, and gas analysis.

Benefit

Low cost and small active area size with medium output.

Options

See Standard Windows and Filters (PDF) for list of optical filter options.
See Thermopile Configuration Table for more options.
Internal 30kΩ 5% NTC chip thermistor provides ambient package temperature measurement. See DC-4005 section of Thermistor Options (PDF).
ST60R TO-5 version offers a low-cost (20% tolerance) poly-silicon resistor to be used as a PTC thermistor.

ST60 Thermopile Detector
ST60 Detector circuit overlay

Datasheet

For more detailed information see the datasheet:

ST60 TO-5 254.19 KB

Download

Parameter	Min	Typical	Max	Symbol	Units	Comments
Active Area size		.61 x .61		AA	mm	Hot junction size, per element.
Element Area		.37		A	mm²
Number of Junctions		80				Per element.
Number of Channels		1				Per detector package.
Output Voltage	80	110	130	V_s	μV	DC, H=330μW/cm² (3)
Signal-to-Noise Ratio	2,365	3,513	4,792	SNR	√Hz	DC, SNR=V_s/V_n
Responsivity	65.2	89.7	105.9		V/W	DC, =V_s/HA (2)
Resistance	45	60	70	R	kΩ	Detector element
Temperature Coefficient of		-.04			%/°C	Best linear fit, 0° to 85°C (1)
Temperature Coefficient of R		.11			%/°C	Best fit, 0° to 85°C (1)
Noise Voltage	27.1	31.3	33.8	V_n	nV/√Hz	V_n²=4kTR
Noise Equivalent Power	.26	.35	.52	NEP	nW/√Hz	DC, NEP= V_nHA/V_s (2)
Detectivity	1.17	1.75	2.38	D*	10⁸√Hz/W	DC, D*=V_s/ V_nH√A (2)
Time Constant		18		Τ	ms	Chopped, -3dB point (1)
Field of View		72°/90°		FOV	Degrees	See Assembly Drawings for FOV Description.
Package Type		TO-5				Standard package hole size: Ø.150″
Operating Temperature	-50		100	T_a	°C
ST60R Thermistor Options	24	30	36	R_T	kΩ	PTC Poly-Silicon resistor on detector die.
ST60R Thermistor Temperature Coefficient of R	.107	.11	.113		%/°C	ΔR/(RΔT), Best fit, 0° to 85°C (1)

Specifications apply at 23°C with KBr Window and Nitrogen encapsulating gas

General Specifications:

Flat spectral response from 100nm to > 100µm. Linear signal output from 10^-6 to 0.1W/cm².
Maximum incident radiance 0.1W/cm², damage threshold ≥ .5W/cm²

Notes:

(1) Parameter is not 100% tested. 90% of all units meet these specifications.
(2) A is detector area in cm².
(3)Test Conditions: 500K Blackbody source; Detector active surface 10cm from 0.6513cm Diameter Blackbody Aperture.