ZTP-315 Thermometrics Thermopile IR Sensor The ZTP-315 thermopile IR sensor is used for non- Features contact surface temperature monitoring. The ZTP- 315 model consists of thermoelements, a flat IR Non-contact measurement filter, a thermistor for temperature compensation and a hermetically-sealed small-size package. Wider surface area measurement There is also a variety of filters available to maximize performance in specific applications. Small-size sensor package Included ambient temperature (thermistor) Applications sensor for compensation HVAC High sensitivity Occupancy detection Fast response time Automotive Low cost Amphenol Advanced SensorsThermopile Chip Thermistor Resistance (R-T Table) Parameter Limits Units Condition Tamb (C) Rmin (k Rcent (k) Rmax (k) -40 847.1 885.1 924.7 Min Typ Max 2 Chip Size 3.6 x 3.6 mm -35 624.1 650.2 677.2 2 Diaphragm Size 2.6 x 2.6 mm -30 464.0 481.9 500.5 2 Active Area 1.3 x 1.3 mm -25 348.0 360.3 373.1 -20 263.1 271.7 280.5 Internal 35 50 65 k 25 C Resistance -15 200,6 206.5 212.7 Resistance T.C. 0.12 %./ C -10 154.1 158.3 162.5 Responsivity 22 32 42 V/W 500K, 1Hz -5 119.3 122.2 125.2 Responsivity T.C. -0.11 %./ C 0 93.03 95.06 97.12 Noise Voltage 30 nV rms R.M.S., 25 C 5 73.07 74.48 75.91 1/2 NEP 0.94 nW/Hz 500K, 1 Hz 10 57.78 58.76 59.75 1/2 Detectivity 1.38 E08 cmHz /W 500K, 1 Hz 15 46.00 46.67 47.34 Time Constant 25 ms 20 36.85 37.30 37.76 25 29.70 30.00 30.30 30 23.98 24.27 24.57 Thermistor 35 19.47 19.75 20.03 Parameter Limits Units Condition 40 15.89 16.15 16.42 Min Typ Max 45 13.04 13.28 13.53 Resistance 29.7 30 30.3 k Tol.:1%, 25 C 50 10.76 10.98 11.20 Beta - Value 3773 3811 3849 K Tol.:1%, Defined at 55 8.914 9.112 9.314 25 C/50 C 65 6.202 6.362 6.526 70 5.204 5.348 5.495 75 4.383 4.512 4.644 80 3.704 3.820 3.938 85 3.141 3.244 3.350 Absolute Maximum Ratings 90 2.670 2.763 2.858 95 2.277 2.359 2.444 Operating Temperature 100 1.946 2.019 2.095 -20C ~ 100C 105 1.667 1.732 1.800 110 1.430 1.489 1.550 Storage Temperature 115 1.230 1.282 1.336 -40C ~ 120C 120 1.058 1.105 1.153