1-1624332-2

Temperature Sensing Chip Resistor (P.T.C. Thermistor) PRODUCT PLANNED FOR EOL Type LT73 Series Key Features Stable Alumina Substrate LTB 18/08/23 Solvent Resistant Coating Excellent Linearity Supplied on Tape and Reel Other TCR's available to order This thin film chip is manufactured by sputtering pure metals onto a high purity alumina base. This process ensures the element remains stable in performance over a long life. The LT73 is equally suited to temperature compensation or thermal protection when incorporated within the appropriate electronics. This range of sensors are finished in a tough epoxy seal and are available on tape for high speed auto placement. Characteristics – Electrical Resistance Range Resistance Tolerance Rated Power at 70°C Max. Working Voltage @ TA 70°C Max. Overload Voltage @ TA 70°C Operating Temperature Range TCR Measuring Temperature TCR Tolerance Insulation Resistance 0805 Size (2A) 510R - 3K0 1206 size (2B) 510R - 6K2 ±5% 0.1 Watt 0.125 Watt 50 volts 75 volts 100 volts 150 volts -40°C ~ +125°C +25°C ~ +75°C (See Graph) ±10% More than 10 Meg Marking – Black four digit on bronze body color te.com 1773244 Rev. E 05/2023 © 2023 TE Connectivity. All Rights Reserved. TE Connectivity, TE connectivity (logo) and Every Connection Counts are trademarks owned or licensed by TE Connectivity. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. Temperature Sensing Chip Resistor (P.T.C. Thermistor) Performance Characteristics Parameter Resistance TCR Overload (Short time) Re ui e e t Δ R ± % + . Ω Limit Typical Within specified tolerance Within specified tolerance ±1.0% ±0.23% Resistance to Solder Heat Rapid Change of Temperature ±1.0% ±0.1% ±1.0% ±0.1% Moisture Resistance ±3.0% ±0.54% Endurance at 70°C ±3.0% ±0.62% Test Method 25°C +25°C/+75°C Rated voltage x 2.5 or maximum overload volume for 5 seconds, whichever is lower 260°C ± 5°C, 10 seconds ± 1 second -40°C (30 minutes)/ +125°C (30 minutes), 5 cycles 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Construction and Dimensions Type te.com L W Dimensions (mm) c d 2A (0805 2.00±0.20 1.25±0.20 0.40±0.20 0.30 2B (1206) 3.20±0.20 1.60±0.20 0.50±0.30 0.40 t +.20 -.10 +.20 -.10 0.50±0.10 0.60±0.10 1773244 Rev. E 05/2023 © 2023 TE Connectivity. All Rights Reserved. TE Connectivity, TE connectivity (logo) and Every Connection Counts are trademarks owned or licensed by TE Connectivity. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. Temperature Sensing Chip Resistor (P.T.C. Thermistor) Derating Curve Temperature Characteristics Approximate expression for Resistance-Temperature Characteristics TCR x ⁻⁶/K) 3000 3300 3600 3900 4200 4500 te.com C 0.9288 0.9232 0.9175 0.9099 0.9026 0.8948 C 0.0028 0.0030 0.0032 0.0035 0.0038 0.0041 . . . . . . C x x x x x x ⁻⁶ ⁻⁶ ⁻⁶ ⁻⁶ ⁻⁶ ⁻⁶ 1773244 Rev. E 05/2023 © 2023 TE Connectivity. All Rights Reserved. TE Connectivity, TE connectivity (logo) and Every Connection Counts are trademarks owned or licensed by TE Connectivity. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. Temperature Sensing Chip Resistor (P.T.C. Thermistor) Packaging Carrier Tape Tape 2A 2B B 2.4±0.1 3.5±0.1 C 8.0±0.2 8.0±0.2 D 3.5±0.05 3.5±0.05 Tape E 1.75±0.1 1.75±0.1 A F 4.0±0.1 4.0±0.1 G 2.0±0.05 2.0±0.05 K T 2A (TE) 1.60±0.15 1.2 Max. 2B (TD) 2.0±0.2 --- H 4.0±0.1 4.0±0.1 T +0.2 0.75 -0 0.90±0.1 0.25±0.05 --- Reel Reel TE TD A 178±2.0 178±2.0 B 60±2.0 60±2.0 W 10±1.2 10±1.2 C 13±0.5 13±0.5 D 21±0.8 21±0.8 E 2.0±0.5 2.0±0.5 How To Order LT73 te.com Common Part LT73 3900 2A 1R0 J TE T.C.R. Size Resistance Value Tolerance Packaging 3000ppm/°C 3900ppm/°C 2A 0805 2B 1206 0.1Ω - R10 1Ω - 1R0 1KΩ- 1K0 J – 5% TE – 4000 RL (0805) TD – 5000 RL (1206) 1773244 Rev. E 05/2023 © 2023 TE Connectivity. All Rights Reserved. TE Connectivity, TE connectivity (logo) and Every Connection Counts are trademarks owned or licensed by TE Connectivity. All other logos, products and/or company names referred to herein might be trademarks of their respective owners.