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 -40C ~ +125C +25C ~ +75C (See Graph) 10% More than 10 Meg Resistance Range: Resistance Tolerance: Rated Power at 70C: Max. Working Voltage @ TA 70C: Max. Overload Voltage @ TA 70C: Operating Temperature Range: TCR Measuring Temperature: TCR Tolerance: Insulation Resistance: This tiny thin film chip is manufactured 1206 Size (2B) 510R - 6K2 5% 0.125 watt 75 volts 150 volts -40C ~ +125C +25C ~ +75C (See Graph) 10% More than 10 Meg by sputtering pure metals onto a high purity alumina base. This process ensures the element remains stable in Characteristics Mechanical performance over a long life. The LT73 Seal Cover: Marking Ink Colour: is equally suited to temperature Orange Black compensation or thermal protection 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. Key Features Stable Alumina Substrate Solvent Resistant Coating Wide Value Range Excellent Linearity 08 05 Small Size 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: 260C 5C, 10 seconds 1 second Solderabililty: 235C 5C, 3 seconds 0.5 second Power Derating 100 80 Rated Power (%) Characteristics Cleaning Stocked in 3900ppm/C Other TCR's Available to Order Supplied on Tape and Reel Custom Design Enquiries Welcome R (%) when 60 40 20 60 50 40 30 20 10 0 -10 -20 -30 -50 TCR (ppm/C) 4500 3300 2400 1600 -25 0 25 50 75 100 125 Ambient Temperature (C) 0 -55 -25 0 30 60 70 90 120 125 Ambient Temperature (C) Dimensions L d W Chip Size L W H D d Weight /1000 2A-0805 2.00.2 1.250.2 0.50.1 0.40.2 0.350.15 4.54g 2B-1206 3.20.2 1.600.2 0.60.1 0.50.3 0.450.15 9.14g H D How to Order LT73 3900 2A 103 1K0 J Common Part T.C.R Size Resistance Value Tolerance Pack Style 3000ppm/C 2A - 0.1W J 5% 3900ppm/C 2B - 0.125W The first two digits are significant figures of resistance value and the third denotes the number of zeros following. Taped - 4000 on Reel LT73 - Standard e.g. 510R: 511 1K0: 102 3K0: 302 Literature No. 1773244 Issued: 04-05 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com