LR253K0F Littelfuse

Surface Mount Thermistors End Banded Chip Thermistor LR Series 1206 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 Tape and reel Non-standard packaging resistance values and tolerances Solder coated metallization Dimensions Features B Surface mountable Low cost Small size Nickel Barrier C A THICKNESS Part Numbering System LR 10 2 D 0 J D SOLDER PLATED BAND WIDTH TERMINATIONS Series Resistance Tolerance J = 5% Resistance 25C No Significance Dimensions shown in inches. Base Value R-T Curve A B C D Multiplier, power of 10 2 Ex. 102 = 10 x 10 = 1,000 A B C D 0.050 0.126 0.063 0.022 Max 0.008 0.008 0.014 0.050 0.022 0.126 0.063 Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. 0.014 MAX 0.008 0.008 2018 Littelfuse, Inc. Revised: February 26, 2018 1 littelfuse.com Specifications are subject to change without notice. Surface Mount Thermistors End Banded Chip Thermistor LR Series 1206 End-Banded Chip Thermistors Specifications Beta (K) Part Resistance *Resistance Tol. Maximum Power Temperature Number Ohms 25C % 25C Rating (mW) Range (C) 25-85C LR102D0J 1000 5 3250 400 -40 to +125 LR222E0J 2200 5 3400 -40 to +125 LR252L0J 2500 5 4100 400 -40 to +125 LR502F0J 5000 5 3550 400 -40 to +125 LR103G0J 10000 5 400 -40 to +125 3750 LR303K0J 30000 5 4000 400 -40 to +125 LR503L0J 50000 5 4000 400 -40 to +125 320 LR104J0J 100000 5 3975 -40 to +125 LR204R0J 200000 5 4250 400 -40 to +125 LR504M0J 500000 5 4050 320 -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.