Leaded Thermistors Interchangeable Thermistor PT Series Standard Precision Interchangeable Thermistors Description Littelfuse precision interchangeable thermistors are low cost, highly accurate, stable devices designed specifically for temperature sensing and control applications. They are particularly suited for uses where their precision interchangeability eliminates the necessity for costly individual circuit calibration. Options Non-standard Special encapsulants or probe housings resistance values and tolerances Special lead materials and lengths Features Dimensions High accuracy Epoxy encapsulated Fast thermal response High stability EPOXY A Low cost Long life COATING TINNED ALLOY Small size R/T Curve-matched WIRE B C Part Numbering System PT 1 0 2 J 2 Dimensions shown in inches. A B C Series No Significance A B C 30 AWG 0.095 1.5 ( ) 0.010 MAX Min R-T Curve Resistance 25C 30AWG 0.095 1.5 Base Value 0.010 Max Min Multiplier, power of 10 2 PS & PT SERIES Ex. 102 = 10 x 10 = 1,000 EPOXY ( ) 30 AWG 0.010 Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. COATING TINNED ALLOY WIRE 0.095 MAX 1.5 MIN 2021 Littelfuse, Inc. Revised: April 15, 2021 1 littelfuse.com Specifications are subject to change without notice. Leaded Thermistors Interchangeable Thermistor PT Series Standard Precision Interchangeable Thermistors Specifications Thermal Thermal Storage & Temperature Dissipation Time Time Resistance Accuracy Temperature Operation Part R-T Coefficient Beta (K) Constant, Constant, Constant, Ohms (C) Rating Temp for Best Number Curve (% / C) 0-50C Nominal Max. - Still Max. - Well 25C 0-70C (C) L/T Stability 25C (mW/C) Air Stirred Oil (C) (seconds) (seconds) PT102J2 1000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT222J2 2252 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT302J2 3000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT502J2 5000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT602J2 6000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT103G2 10000 0.2C G -4.04 3575 1 10 1 -80 to +150 -80 to +120 PT103J2 10000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT203J2 20000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT303J2 30000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT503J2 50000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT503R2 50000 0.2C R -4.68 4140 1 10 1 -80 to +150 -80 to +120 PT104J2 100000 0.2C J -4.4 3892 1 10 1 -80 to +150 -80 to +120 PT104R2 100000 0.2C R -4.68 4140 1 10 1 -80 to +150 -80 to +120 Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics 2021 Littelfuse, Inc. Revised: April 15, 2021 2 littelfuse.com Specifications are subject to change without notice.