KC203J2K Littelfuse

Leaded Thermistors Epoxy Coated Thermistor KC Series Miniature Thermistors Description Littelfuse miniature leaded epoxy coated thermistors are manufactured using the same state of the art manufacturing techniques as those used to produce Littelfuse precision interchangeable devices. This results in devices with superior long- term reliability characteristics especially suitable for temperature measurement, temperature control and temperature compensation applications. Options Non-standard Special encapsulants or probe housings resistance values and tolerances Point matched at specified temperatures Special lead materials and lengths Dimensions Features Kynar insulated Epoxy encapsulated lead wires Small size EPOXY B COATING Low cost Fast thermal KYNAR INSULATED High reliability response time A WIRE C Part Numbering System D KC 10 3 J 2 K Dimensions shown in inches. A B C D Series Resistance Tolerance F = 1% A B C D 0.250 0.095 1.5 28 AWG K = 10% ( ) 0.013 Resistance 25C NOM MAX 0.250 No Significance 0.2500 28 AWG 0.0095 1.5 Base Value Nom 0.013 Max 0.250 R-T Curve Multiplier, power of 10 KC SERIES 3 Ex. 103 = 10 x 10 = 10,000 EPOXY COATING Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. 0.250 TEFLON NOM INSULATED WIRE 0.095 MAX 1.5 0.250 2021 Littelfuse, Inc. Revised: March 23, 2021 1 littelfuse.com Specifications are subject to change without notice. Leaded Thermistors Epoxy Coated Thermistor KC Series Miniature Thermistors Specifcations Temperature Dissipation Thermal Time Thermal Time Resistance *Resistance Temperature Part R-T Coefficient Beta (K) Beta (K) Constant, Constant, Constant, Max. Ohms Tol. % Rating Number Curve (% / C) 0-50C 25-50C Nominal Max. - Still -Well Stirred 25C 25C (C) 25C (mW/C) Air (seconds) Oil (seconds) KC101B2K 100 10 B -3.3 2941 1 10 1 -55 to +100 KC102F2K 1000 10 F -3.86 3419 1 10 1 -55 to +135 KC222J2K 2252 10 J -4.4 3892 1 10 1 -55 to +135 KC302J2K 3000 10 J -4.4 3892 1 10 1 -55 to +135 KC502J2K 5000 10 J -4.4 3892 1 10 1 -55 to +135 KC103G2K 10000 10 G -4.04 3575 1 10 1 -55 to +135 KC103J2K 10000 10 J -4.4 3892 1 10 1 -55 to +135 KC203J2K 20000 10 J -4.4 3892 1 10 1 -55 to +135 KC203N3F 20000 1 N1 -4.5 4050 -55 to +125 KC303J2K 30000 10 J -4.4 3892 1 10 1 -55 to +135 KC503J2K 50000 10 J -4.4 3892 1 10 1 -55 to +135 KC104R2K 100000 10 R -4.68 4140 1 10 1 -55 to +135 * Resistance tolerances of 1%, 2%, and 5% are available upon request 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: March 23, 2021 2 littelfuse.com Specifications are subject to change without notice.