Temperature Sensing Chip Resistor (P.T.C. Thermistor) Type LT73 Series Type LT73 Series Characteristics Electrical 0805 Size (2A) 510R - 3K0 ±5% 0.1 watt 50 volts 100 volts -40°C ~ +125°C +25°C ~ +75°C (See Graph) ± 10% More than 10 Meg 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: This tiny thin film chip is manufac- 1206 Size (2B) 510R - 6K2 ±5% 0.125 watt 75 volts 150 volts -40°C ~ +125°C +25°C ~ +75°C (See Graph) ± 10% More than 10 Meg tured by sputtering pure metals onto a high purity alumina base. This process ensures the element Characteristics Mechanical remains stable in performance over Seal Cover: Marking Ink Colour: a long life. The LT73 is equally suited to temperature compensation or thermal protection when the appropriate electronics. This range of sensors are finished in a tough epoxy seal and are available on tape for high speed auto placement. Key Features ■ Stable Alumina Substrate ■ Solvent Resistant Coating ■ Wide Value Range ■ Excellent Linearity TCR (ppm/°C) 60 100 50 80 08 05 Small Size ■ Stocked in 3900ppm/°C ■ Other TCR's Available to Order ■ Supplied on Tape and Reel Custom Design Enquiries Welcome The washing process is very important to ensure long term reliability because ionic impurity from flux may cause electrolytic corrosion of the metal film. Short time Overload: Rated Voltage x 2.5 maximum Overload Voltage for 5 seconds, whichever is less Resistance to Soldering Heat: 260°C ± 5°C, 10 seconds ± 1 second Solderabililty: 235°C ± 5°C, 3 seconds ± 0.5 second Power Derating ■ ■ Characteristics Cleaning 4500 40 3300 30 60 ΔR (%) within Rated Power (%) incorporated Orange Black 40 2400 20 1600 10 0 -10 20 -20 -30 0 -55 -25 0 30 60 70 90 -50 120 125 -25 0 25 50 75 100 125 Ambient Temperature (°C) Ambient Temperature (°C) Dimensions L d W Chip Size W H D d Weight /1000 2A-08.05 2.0±0.20 1.25±0.2 0.5±0.1 0.4±0.2 0.35±0.15 4.54g 2B-12.06 3.2±0.20 1.60±0.2 0.6±0.1 0.5±0.3 0.45±0.15 9.14g L H D How to Order LT73 3900 2A 1R0 J TE Common Part T.C.R Size ResistanceValue Tolerance Pack Style 0.1 ohm (100 milli ohms) R10 LT73 - Standard 3000ppm/°C 2A - 0.1W 3900ppm/°C 2B - 0.125W 1 ohm (1000 milli ohms) 1R0 1K ohm (1000 ohms) 1K0 Literature No. 1773244 Issued: 07-08 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. J ±5% 2A (0805) - TE Taped 4000 per Reel 2B (1206) - TD Taped 5000 per Reel tycoelectronics.com passives.tycoelectronics.com