HM104J1A Littelfuse

Surface Mount Thermistors MELF Style Thermistor HM Series LL-34 MiniMELF Thermistors Description Littelfuse LL-34 MiniMELF style interchangeable glass encapsulated surface mount thermistors are manufactured using super stable NTC chips which are hermetically sealed in a glass package. The result is a device which exhibits excellent long-term reliability and stability even when subjected to severe environmental or thermal conditions. They are well suited for uses where their interchangeability eliminates the necessity for costly individual circuit calibration. Their uniform dimensions make them especially suitable for use with automatic insertion equipment. Options Non-standard Point matched at resistance values specified temperatures and tolerances Tape and Reel Packaging Dimensions Features A High temperature Low cost capability to +220C Excellent long-term TINNED Surface mountable stability DUMET CONTACT Hermetically sealed TABS glass package C B GLASS BODY Part Numbering System HM 10 3 J 1 A Dimensions shown in inches. A B C A B C Series Resistance Tolerance 0.060 0.135 0.019 0.135 0.019 0.0603 0.005 Resistance 25C 0.012 0.005 0.012 0.005 0.005 Base Value No Significance Multiplier, power of 10 R-T Curve 3 Ex. 103 = 10 x 10 = 10,000 0.135 Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. 0.012 TINNED DUMET CONTACT TABS GLASS 0.060 BODY 0.005 0.019 0.005 2018 Littelfuse, Inc. Revised: February 26, 2018 1 littelfuse.com Specifications are subject to change without notice. Surface Mount Thermistors MELF Style Thermistor Specifications Thermal Temperature Dissipation Time Resistance *Resistance Accuracy Temperature Part R-T Coefficient Beta (K) Constant, Constant, Ohms Tol. % (0C to Rating Nominal Max. - Number Curve (% / C) 0-50C 25C 25C +50C) (C) (mW/C) Still Air 25C (seconds) HM103J1A 10000 0.5 0.5 C J -4.4 3892 2 8 -55 to +220 HM153J1A 15000 0.5 0.5C J -4.4 3892 2 8 -55 to +220 HM203J1A 20000 0.5 0.5C J -4.4 3892 2 8 -55 to +220 HM503J1A 50000 0.5 0.5C J -4.4 3892 2 8 -55 to +220 HM104J1A 100000 0.5 0.5C J -4.4 3892 2 8 -55 to +220 * Resistance tolerances of 1%, 2%, and 5% are available upon request Packaging Packaging Option Packaging Code Standard Quantity Standard Tape and Reel -TR 2500 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.