302JH1K

Leaded Thermistors Glass Encapsulated Thermistor DO-41 Standard Series Glass Encapsulated Thermistors Description Littelfuse low cost glass encapsulated thermistors are manufactured using super stable NTC chips which are hermetically sealed in a glass (DO-41 diode style) package. The result is a device which exhibits excellent long term reliability and stability even when subjected to severe environmental or thermal conditions. Their uniform dimensions and axial lead configuration make them especially suitable for use with automatic insertion equipment. Options • Non-standard • Tape and Reel resistance values and tolerances Packaging • Point matched at Dimensions specified temperatures Features GLASS BODY A • High temperature • Excellent long-term • Hermetically sealed glass package • Tinned CSS Lead capability to +300°C B • Low cost • High voltage insulation C A 0.0256" ±0.003" Diam 22 AWG TINNED CCS 0.0256”±0.003” 1.0" LONG MIN Dia 22 AWG Tinned CCS 1.0” Long Min B 0.110" MAX B C 0.170" MAX 0.110” Max Wires are Solderable or Weldable Part Numbering System Dimensions shown in inches. A stability C 10 1 B H 1 K 0.170” Max Resistance @ 25ºC Base Value GLASS ENCAPSULATED THERMISTORS Multiplier, power of 10 Ex. 101 = 10 Ω x 101 = 100 Ω GLASS BODY Resistance Tolerance K = ±10% No Significance DO-41 Glass Package R-T Curve 22 AWG (0.0256" 0.003" DIA) TINNED CCS, 1.0" LONG MIN Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. 0.110" MAX 0.170" MAX © 2021 Littelfuse, Inc. Revised: March 23, 2021 Specifications are subject to change without notice. 1 littelfuse.com Leaded Thermistors Glass Encapsulated Thermistor DO-41 Standard Series Glass Encapsulated Thermistors Specifications Beta (K) 0-50°C Dissipation Constant, Nominal (mW/°C) Thermal Time Constant, Max. Still Air (seconds) Thermal Time Constant, Max. - Well Stirred Oil (seconds) Temperature Rating (°C) -3.31 2941 3 8 2 -55 to +220 F -3.86 3419 3 8 2 -55 to +300 10 F -3.86 3419 3 8 2 -55 to +300 2000 10 J -4.4 3892 3 8 2 -55 to +300 222JH1K 2252 10 J -4.4 3892 3 8 2 -55 to +300 302JH1K 3000 10 J -4.4 3892 3 8 2 -55 to +300 502JH1K 5000 10 J -4.4 3890 3 8 2 -55 to +300 203RH1K 20000 10 R -4.68 4140 3 8 2 -55 to +300 333RH1K 33000 10 R -4.68 4140 3 8 2 -55 to +300 Part Number Resistance Ohms @25°C *Resistance Tol. ± % @ 25°C R-T Curve Temperature Coefficient (% / °C) @ 25°C 101BH1K 100 10 B 501FH1K 500 10 102FH1K 1000 202JH1K *Resistance tolerances of ± 1%, 2%, and 5% are available upon request Packaging Packaging Option Packaging Code Standard Quantity Standard Tape and Reel -TR 5000 EIA-296 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 Specifications are subject to change without notice. 2 littelfuse.com