Surface Mount Thermistors End Banded Chip Thermistor KR Series 0805 End-Banded Chip Thermistors Description Littelfuse surface mount end-banded thermistor elements are designed for use on hybrid substrates, integrated circuits or printed circuit boards. They have a solder coated metallization which is suitable for various contact techniques including wire bond, epoxy or solder. Since they are manufactured using the most advanced equipment and technology available, their dimensional parameters are extremely uniform making the devices especially suitable for use with automatic handling and placement equipment. Options Non-standard Tape and reel resistance values packaging and tolerances Solder coated metallization Dimensions Features Surface mountable Low cost Small size Nickel Barrier B C Part Numbering System A THICKNESS KR 10 2 D 0 J Series Resistance Tolerance SOLDER PLATED J = 5% D Resistance 25C TERMINATIONS BAND WIDTH No Significance Base Value R-T Curve Multiplier, power of 10 Dimensions shown in inches. 2 Ex. 102 = 10 x 10 = 1,000 A B C D Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. A B C D 0.050 0.0787 0.0492 0.016 Max 0.008 0.008 Nom 0.050 0.016 0.0787 0.0492 MAX NOM 0.008 0.008 KR SERIES 0.0787 0.008 0.0492 THICKNESS: 0.008 0.050 MAX 2018 Littelfuse, Inc. Revised: February 26, 2018 1 littelfuse.com Specifications are subject to change without notice. BAND WIDTH: 0.016 SOLDER PLATED NOMINAL TERMINATIONSSurface Mount Thermistors End Banded Chip Thermistor KR Series 0805 End-Banded Chip Thermistors Specifications Temperature Maximum Resistance *Resistance Temperature Part Coefficient Beta (K) Beta (K) Power Ohms Tol. % Rating Number (% / C) 25/50C 25-85C Rating 25C 25C (C) 25C (mW) KR102D0J 1000 5 3250 300 -40 to +125 KR252L0J 2500 5 4100 300 -40 to +125 KR272G0J 2700 5 3750 -40 to +125 KR502F0J 5000 5 3550 300 -40 to +125 KR103E0J 10000 5 3435 300 -40 to +125 KR103G0J 10000 5 3712 3750 300 -40 to +125 KR103J0J 10000 5 - 4.4 3976 -40 to +125 KR303K0J 30000 5 4000 300 -40 to +125 KR503L0J 50000 5 4150 300 -40 to +125 KR104R0J 100000 5 4250 300 -40 to +125 KR204R0J 200000 5 4250 300 -40 to +125 *Resistance tolerances of 1%, 2%, and 5% are available upon request Packaging Packaging Option Packaging Code Standard Tape and Reel -TR / -2 EIA-481 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.