Leaded Thermistors Interchangeable Thermistor KS 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 Low cost Long life EPOXY B COATING KYNAR Small size R/T Curve-matched A INSULATED WIRE C Part Numbering System D KS 1 0 2 J 2 Dimensions shown in inches. Series No Significance A B C D A B C D R-T Curve Resistance 25C 0.250 30 AWG 0.095 1.5 Base Value ( ) NOM 0.010 MAX 0.250 0.250 30 AWG 0.095 1.5 Nom 0.010 Max 0.250 Multiplier, power of 10 2 Ex. 102 = 10 x 10 = 1,000 KS & KT SERIES Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. EPOXY COATING 0.250 ( ) 30 AWG 0.010 KYNAR NOM INSULATED WIRE 0.095 MAX 1.5 .250 2018 Littelfuse, Inc. Revised: February 26, 2018 1 littelfuse.com Specifications are subject to change without notice. Leaded Thermistors Interchangeable Thermistor KS Series Standard Precision Interchangeable Thermistors Specifications Thermal Thermal Storage & Temperature Max. Dissipation Time Time Resistance Accuracy Temperature Operation Part R-T Coefficient Beta (K) Power Constant, Constant, Constant, Ohms (C) Rating Temp for Best Number Curve (% / C) 0-50C Rating Nominal Max. - Still Max. - Well 25C 0-70C (C) L/T Stability 25C (mW) (mW/C) Air Stirred Oil (C) (seconds) (seconds) KS102J2 1000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS222J2 2252 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS302J2 3000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS502J2 5000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS602J2 6000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS103G2 10000 0.1C G -4.04 3575 30 1 10 1 -80 to +135 -80 to +75 KS103J2 10000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS103J34 10000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS203J2 20000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS303J2 30000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS503J2 50000 0.1C J -4.4 3892 30 1 10 1 -80 to +135 -80 to +75 KS503R2 50000 0.1C R -4.68 4140 30 1 10 1 -80 to +135 -80 to +75 KS104R2 100000 0.1C R -4.68 4140 30 1 10 1 -80 to +135 -80 to +75 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 2018 Littelfuse, Inc. Revised: February 26, 2018 2 littelfuse.com Specifications are subject to change without notice.