LT7330003K0JTG

**Temperature Sensing Chip Resistor (P.T.C. Thermistor)** 

## **Type LT73 Series** 

## **Type LT73 Series** 

This tiny 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. 

## **Key Features** 

## **Characteristics - Electrical** 

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|---|---|---|
|0805 Size (2A)|1206 Size (2B)|
|Resistance Range:|510R - 3K0|510R - 6K2|
|Resistance Tolerance:|±5%|±5%|
|Rated Power at 70°C:|0.1 watt|0.125 watt|
|Max. Working Voltage @ TA 70°C:|50 volts|75 volts|
|Max. Overload Voltage @ TA 70°C:|100 volts|150 volts|
|Operating Temperature Range:|-40°C ~ +125°C|-40°C ~ +125°C|
|TCR Measuring Temperature:|+25°C ~ +75°C (See Graph)|+25°C ~ +75°C (See Graph)|
|TCR Tolerance:|± 10%|± 10%|
|Insulation Resistance:|More than 10 Meg|More than 10 Meg|

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## **Characteristics - Mechanical** 

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|Seal Cover:|Orange|
|Marking Ink Colour:|Black|

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## **Characteristics - Cleaning** 

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 

- I **Stable Alumina Substrate** 

- I **Solvent Resistant Coating** 

- I **Wide Value Range** 

- I **Excellent Linearity** 

- I **08 05 Small Size** 

- I **Stocked in 3900ppm/°C** 

- I **Other TCR's Available to Order** 

- I **Supplied on Tape and Reel** 

- I **Custom Design Enquiries Welcome** 

## **Power Derating** 

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100<br>TCR<br>60 (ppm/°C)<br>80 50 4500<br>40<br>30 3300<br>60 20 2400<br>1600<br>10<br>40 0<br>-10<br>-20<br>20<br>-30<br>-50 -25 0 25 50 75 100 125<br>0 Ambient Temperature (°C)<br>-55 -25 0 30 60 70 90 120 125<br>Ambient Temperature (°C)<br>R (%)<br>∆<br>Rated Power (%)<br>**----- End of picture text -----**<br>


## **Dimensions** 

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|---|---|---|---|---|---|---|
|d|L|
|W|
|Chip|L|W|H|D|d|Weight|
|Size|/1000|
|2A-0805|2.0±0.2|1.25±0.2|0.5±0.1|0.4±0.2|0.35±0.15|4.54g|
|2B-1206|3.2±0.2|1.60±0.2|0.6±0.1|0.5±0.3|0.45±0.15|9.14g|
|H|
|:|Zs|D|_ 7|
|How to Order|
|LT73|3900|2A|103|1K0|J|
|Common Part|T.C.R|Size|Resistance Value|Tolerance|Pack Style|
|The first two digits|
|are significant figures|
|3000ppm/°C|2A - 0.1W|of resistance value|
|LT73 - Standard|and the third denotes|J ±5%|Taped - 4000|
|3900ppm/°C|2B - 0.125W|the number of zeros|on Reel|
|following.|
|e.g. 510R: 511|
|1K0: 102|
|3K0: 302|

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Dimensions are in millimetres Specifications subject to unless otherwise specified. change. 

Literature No. 1773244 Dimensions are shown for Issued: 04-05 reference purposes only. 

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