135-103LFW-J01

TEMPERATURE - THERMISTORS TEMPERATURE - THERMISTORS Temperature Sensors Thermistors Thermistors change resistance with a change in temperature. They do not amplify, rectify, polarize or generate a signal. The thermistor temperature may be changed by the surrounding temperature or by self-heating the thermistor by passing a current through it. Most applications such as temperature measurement and control or copper coil compensation require that the power dispersed in a thermistor be kept to a minimum so as not to perceptibly self-heat the thermistor. Other applications depend entirely on the self-heating effect. When the surrounding temperature is fixed, the resistance of a thermistor is largely a function of power being dispersed within it, raising its temperature above its environment. Under these operating conditions, the temperature may rise 100 °C to 200 °C [121 °F to 392 °F] and the resistance may be lowered to 1/1000th of its original value at low current. This self-heating characteristic provides a whole field of uses for the thermistor. In the self-heat state it is thermally sensitive (its resistance will be changed) to any condition, changing the rate at which heat is conducted away from it. If the rate of heat removal is ideally fixed, then the thermistor is sensitive to power input and suited for use in voltage or power level control applications. Glass Encapsulated Chip (GEC) Thermistors OPTIONS At 25 °C [77 °F] The GECs are high-quality, hermetically-sealed, glass-encapsulated chip thermistors in an axial lead package. They cover the full temperature range of -60 °C to 300 °C [-76 °F to 572 °F]. These rugged sensors are designed for applications which demand reliability at low cost. The uniform dimensions are ideally suited for automated assembly. Operating temperature: -60 °C to 300 °C [-76 °F to 572 °F] Encapsulation: DO-35 glass Lead material: Tinned copper-clad steel Dissipation constant (DC): 2.5 mW/°C in still air min. Time constant (TC): 4 s in still air max. Resistance range at 25 °C [77 °F]: 1 kOhm to 1 MOhm CHIP THERMISTOR 2,0 DIA. [0.08] GLASS ENCAPSULATION 28,6 [1.125] 4,6 [0.81] OHM 1,000 2,000 3,000 5,000 5,000 10,000 10,000 10,000 20,000 30,000 50,000 50,000 100,000 100,000 200,000 500,000 1M % TOLERANCE 10 10 10 5 10 5 10 5 10 10 5 10 5 10 10 10 10 REFERENCE 135-102DAG-J01 135-202FAG-J01 135-302FAG-J01 135-502FAF-J01 135-502FAG-J01 135-103FAF-J01 135-103FAG-J01 135-103LAF-J01 135-203LAG-J01 135-303KAG-J01 135-503LAF-J01 135-503LAG-J01 135-104LAF-J01 135-104LAG-J01 135-204QAG-J01 135-504QAG-J01 135-105QAG-J01 Interchangeable R/T curve matched ±1 °C from 0 °C to 100 °C [32 °F to 212 °F] OHM 10,000 20,000 30,000 50,000 100,000 0,51 DIA. TINNED COPPER CLAD STEEL [0.020] 18 R/T CURVE 10A 10 10 10 10 10 16 16 16 16 16 16 16 16 1 1 1 www.honeywell.com/sensing R/T CURVE 16 16 16 16 16 REFERENCE 135-103LFW-J01 135-203LFW-J01 135-303LFW-J01 135-503LFW-J01 135-104LFW-J01