SM303J1K LITTELFUSE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 3
Technical content
Features
- High temperature capability to +220°C
- Surface mountable
- Hermetically sealed glass package
- Low cost
- Excellent long-term stability Options
- Non-standard resistance values and tolerances
- Point matched at specified temperatures
- Tape and Reel Packaging GLASS BODY0.060" 0.005" 0.135" 0.012" 0.019" 0.005" TINNED DUMET CONTACT TABS GLASS BODY 0.060" ± 0.005"0.135" ± 0.012" 0.019" ± 0.005" TINNED DUMET CONTACT TABS A C B A B C Part Numbering System Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details. SM 10 2 B 1 K No Significance Multiplier, power of 10 Ex. 102 = 10 Ω x 102 = 1,000 Ω Resistance @ 25ºC Base Value R-T Curve Series Resistance T olerance F = ±1% K = ±10%
littelfuse.com© 2018 Littelfuse, Inc. Revised: February 26, 2018 Specifications are subject to change without notice. Specifications Part Number Resistance Ohms @25°C *Resistance Tol. ± % @ 25°C R-T Curve Temperature Coefficient (%/°C) @ 25°C Beta (K) 0-50°C Dissipation Constant, Nominal (mW/°C) Thermal Time Constant, Max. - Still Air (seconds) Temperature Rating (°C) SM102B1K 1000 10 B -3.3 2941 2 8 -55 to +220 SM102D1K 1000 10 D2 _ 3156 2 8 -55 to +220 SM102E1K 1000 10 E -3.67 3263 2 8 -55 to +220 SM202F1K 2000 10 F -3.86 3419 2 8 -55 to +220 SM222E1K 2186 10 E1 -3.82 3320 2 8 -55 to +220 SM252B1K 2500 10 B -3.31 2941 2 8 -55 to +220 SM252B4K 2500 10 B -3.31 2941 2 8 -55 to +220 SM103F5K 10000 10 F -3.86 3419 2 8 -55 to +220 SM103G1K 10000 10 G -4.04 3575 2 8 -55 to +220 SM103J1F 10000 1 J -4.4 3892 2 8 -55 to +220 SM103J1K 10000 10 J -4.4 3892 2 8 -55 to +220 SM403J1K 10000 10 J -4.4 3892 2 8 -55 to +220 SM472F1K 10000 10 F -3.86 3419 2 8 -55 to +220 SM472G1K 10000 10 G -4.03 3575 2 8 -55 to +220 SM501B1K 10000 10 B -3.31 2941 2 8 -55 to +220 SM153J1K 15000 10 J -4.4 3892 2 8 -55 to +220 SM602F1K 15000 10 F -3.86 3419 2 8 -55 to +220 SM203J1K 20000 10 J -4.4 3892 2 8 -55 to +220 SM253J1K 25000 10 J -4.4 3892 2 8 -55 to +220 SM303J1K 30000 10 J -4.4 3892 2 8 -55 to +220 SM104J1F 100000 1 J -4.4 3892 2 8 -55 to +220 SM104J1K 100000 10 J -4.4 3892 2 8 -55 to +220 *Resistance tolerances of ± 1%, 2%, and 5% are available upon request MELF Style Thermistor Surface Mount Thermistors LL 34 MiniMELF SM
littelfuse.com© 2018 Littelfuse, Inc. Revised: February 26, 2018 Specifications are subject to change without notice. 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 MELF Style Thermistor Surface Mount Thermistors Specifications Part Number Resistance Ohms @25°C *Resistance Tol. ± % @ 25°C R-T Curve Temperature Coefficient (% / °C) @ 25°C Beta (K) 0-50°C Dissipation Constant, Nominal (mW/°C) Thermal Time Constant, Max. - Still Air (seconds) Temperature Rating (°C) SM104J1O 100000 _ J -4.4 3892 2 8 -55 to +220 SM104R1K 100000 10 R -4.68 4140 2 8 -55 to +220 SM502F1K 100000 10 F -3.86 3419 2 8 -55 to +220 SM503J1K 100000 10 J -4.4 3892 2 8 -55 to +220 SM504R1K 100000 10 R -4.68 4140 2 8 -55 to +220 SM254R1K 250000 10 R -4.68 4140 2 8 -55 to +220 SM105V3K 1000000 10 V3 -4.93 4369 2 8 -55 to +220 SM105R1K 1000000 10 R -4.68 4140 2 8 -55 to +220 *Resistance tolerances of ± 1%, 2%, and 5% are available upon request