2322 626 1.... Vishay BCcomponents NTC Thermistors, Glass Encapsulated Miniature Bead FEATURES • Small diameter • Quick response to changes in temperature • High stability over long time periods • High temperature operation • Resistant to aggressive environments • High degree of isolation between tip and environment QUICK REFERENCE DATA PARAMETER APPLICATIONS VALUE Resistance value at 25 °C Tolerance on R25-value B25/85-value Tolerance on B25/85-value Maximum dissipation at 55 °C Dissipation factor Response time; note 1 Thermal time constant Operating temperature range: at zero dissipation Temperature measurement and control. 1 kΩ to 1 MΩ ±5%; ±10% 2075 to 4100 K ±5% 100 mW ≈1.2 mW/K ≈1 s ≈10 s at maximum dissipation Dielectric withstanding voltage (RMS) between terminals and glass envelope Insulation resistance between terminals and glass envelope at 100 V Mass Bead thermistor with negative temperature coefficient, in a glass envelope with two tinned durnet (CuNiFe) leads. The device is non-flammable. MARKING The thermistors are marked with four colored dots on the glass envelope; see Component Outline drawing and Electrical Data and Ordering Information table. −55 to +200 °C or −55 to +300 °C 0 to 55 °C min. 1 500 V MOUNTING min. 100 MΩ By soldering in any position. ≈0.27 g Note 1. Response time in silicone oil MS200/50. This is the time needed for the sensor to reach 63.2% of the total temperature difference when subjected to a temperature change from 25 °C in air to 85 °C in oil. PACKAGING The thermistors are packed in cardboard boxes; the smallest packaging quantity is 100 units. ELECTRICAL DATA AND ORDERING INFORMATION R25 (kΩ) B25/85-VALUE TC (%/K) MAX. TEMPERATURE (°C) 1 2.2 4.7 10 22 47 100 220 470 1000 2075 K ±5% 2285 K ±5% 2485 K ±5% 3750 K ±5% 3560 K ±5% 3750 K ±5% 3900 K ±5% 3860 K ±5% 3950 K ±5% 4100 K ±5% −2.3 −2.6 −2.8 −4.2 −4.0 −4.2 −4.4 −4.3 −4.5 −4.6 200 200 200 200 200 300 300 300 300 300 CATALOG NUMBER 2322 626 1.... R25 ±10% R25 ±5% 3102 2102 3222 2222 3472 2472 3103 2103 3223 2223 3473 2473 3104 2104 3224 2224 3474 2474 3105 2105 COLOUR CODE (see Component outline drawing and note 1) I brown red yellow brown red yellow brown red yellow brown II black red violet black red violet black red violet black III red red red orange orange orange yellow yellow yellow green Note 1. Dependent upon R25-tolerance, the dot IV is coloured as follows: a) for R25 ±5%, dot IV is coloured gold; b) for R25 ±10%, dot IV is coloured silver. 2. R25-values, temperature coefficients, catalog numbers and coding. 3. The thermistors have a 12-digit catalog number starting with 2322 626 1. The subsequent 4 digits indicate the resistance and tolerance. Document Number: 29061 Revision: 10-Oct-03 For technical questions contact: [email protected] www.vishay.com 121 2322 626 1.... Vishay BCcomponents NTC Thermistors, Glass Encapsulated Miniature Bead DIMENSIONS in millimeters Component outline. ΙΙΙ ΙΙ Ι ΛΙ ∅0.3 ∅2.5 max. 33 max. 30 min. CCB203 Maximum bow in the centre of the glass envelope is 1 mm. DERATING P (%) 100 0 −55 0 55 85 300 Tamb (°C) Power derating curve. www.vishay.com 122 For technical questions contact: [email protected] Document Number: 29061 Revision: 10-Oct-03