BetaCurve Interchangeable Thermistor Series I Features Fast time response (1 second typical in liquids). DC (Dissipation Constant) = 0.75 mW/o C typical in still air at 25C. Available in custom probe Introduction The BetaCURVE Thermistor Series I are small epoxy coated devices with assemblies. Tight tolerance available - +/- 0.1o C solid tin plated lead wires. The series offers a choice of precision temperature from 0o C to 70o C . tolerance classifications for a wide variety of customer applications, such as temperature measurements, temperature indication, temperature control, and thermal compensation. Proven Stability and Reliability. Min./Max Temperature Exposure = -80C to +150C. The BetaCURVE Series history of "long term" stability and reliability performance have been demonstrated in critical medical, scientific instrumentation, military/aerospace and industrial applications. Alloy lead wires for reduced thermal conductivity ("stem effect"). Thermistor interchangeability has become an important factor for cost efficiency in advanced thermal performance applications. The need for expensive individual thermistor calibration is not necessary. The BetaCURVE Applications Series interchangeability means that each device will match the published Resistance-Temperature Characteristics for a given thermistor and will be within the specified deviation (tolerance, ie. 0.1C, 0.2C, 0.5C and 1.0C) limits over the temperature range 0C to 70C. Temperature sensing, control and compensation. Medical equipment and patient monitoring. Aerospace instrumentation and Shape and Dimensions crystal oscillator compensation. Liquid or gas temperature control and monitoring. Assembly into probes for a wide variety of applications. Part Numbering System Electrical Specifications Part Color Resistance @ Resistance 25C (Ohms) Tol. @ 25C Temperature Tolerance and Alpha 0/50 C Curve # Number Code Range @ 25C Beta Value 2.2K3A1A Brown 2252 0.25% 0.1 C (0 to 70 C) -4.39 %/C 3892 3 2.2K3A1B Brown 2252 0.50% 0.2 C (0 to 70 C) -4.39 %/C 3892 3 2.2K3A1C Brown 2252 1.00% 0.5 C (0 to 70 C) -4.39 %/C 3892 3 2.2K3A1D Brown 2252 2.00% 1.0 C (0 to 70 C) -4.39 %/C 3892 3 3K3A1A Red 3000 0.25% 0.1 C (0 to 70 C) -4.39 %/C 3892 3 3K3A1B Red 3000 0.50% 0.2 C (0 to 70 C) -4.39 %/C 3892 3 3K3A1C Red 3000 1.00% 0.5 C (0 to 70 C) -4.39 %/C 3892 3 3K3A1D Red 3000 2.00% 1.0 C (0 to 70 C) -4.39 %/C 3892 3 5K3A1A Orange 5000 0.25% 0.1 C (0 to 70 C) -4.39 %/C 3892 3 5K3A1B Orange 5000 0.50% 0.2 C (0 to 70 C) -4.39 %/C 3892 3 5K3A1C Orange 5000 1.00% 0.5 C (0 to 70 C) -4.39 %/C 3892 3 5K3A1D Orange 5000 2.00% 1.0 C (0 to 70 C) -4.39 %/C 3892 3 10K3A1A Yellow 10000 0.25% 0.1 C (0 to 70 C) -4.39 %/C 3892 3 10K3A1B Yellow 10000 0.50% 0.2 C (0 to 70 C) -4.39 %/C 3892 3 10K3A1C Yellow 10000 1.00% 0.5 C (0 to 70 C) -4.39 %/C 3892 3 10K3A1D Yellow 10000 2.00% 1.0 C (0 to 70 C) -4.39 %/C 3892 3 10K4A1A Black 10000 0.25% 0.1 C (0 to 70 C) -4.04 %/C 3575 4 10K4A1B Black 10000 0.50% 0.2 C (0 to 70 C) -4.04 %/C 3575 4 10K4A1C Black 10000 1.00% 0.5 C (0 to 70 C) -4.04 %/C 3575 4 10K4A1D Black 10000 2.00% 1.0 C (0 to 70 C) -4.04 %/C 3575 4 30K5A1A White 30000 0.25% 0.1 C (0 to 70 C) -4.30 %/C 3811 5 30K5A1B White 30000 0.50% 0.2 C (0 to 70 C) -4.30 %/C 3811 5 30K5A1C White 30000 1.00% 0.5 C (0 to 70 C) -4.30 %/C 3811 5 30K5A1D White 30000 2.00% 1.0 C (0 to 70 C) -4.30 %/C 3811 5 30K6A1A Green 30000 0.25% 0.1 C (0 to 70 C) -4.68 %/C 4143 6 30K6A1B Green 30000 0.50% 0.2 C (0 to 70 C) -4.68 %/C 4143 6 30K6A1C Green 30000 1.00% 0.5 C (0 to 70 C) -4.68 %/C 4143 6 30K6A1D Green 30000 2.00% 1.0 C (0 to 70 C) -4.68 %/C 4143 6 50K6A1A Blue 50000 0.25% 0.1 C (0 to 70 C) -4.68 %/C 4143 6 50K6A1B Blue 50000 0.50% 0.2 C (0 to 70 C) -4.68 %/C 4143 6 50K6A1C Blue 50000 1.00% 0.5 C (0 to 70 C) -4.68 %/C 4143 6 50K6A1D Blue 50000 2.00% 1.0 C (0 to 70 C) -4.68 %/C 4143 6 100K6A1A Violet 100000 0.25% 0.1 C (0 to 70 C) -4.68 %/C 4143 6 100K6A1B Violet 100000 0.50% 0.2 C (0 to 70 C) -4.68 %/C 4143 6 100K6A1C Violet 100000 1.00% 0.5 C (0 to 70 C) -4.68 %/C 4143 6 100K6A1D Violet 100000 2.00% 1.0 C (0 to 70 C) -4.68 %/C 4143 6 Rev 1 Sales: sales@betatherm.com Sales: sales@betatherm-usa.com Tel: +353 91 753238/753612 Tel: 508 842 0516 Fax: +353 91 770789/753615 Fax: 508 842 0748 03007