GAG22K7MCD419

## GLASS BEAD FAST TIME RESPONSE PROBE 

## SPECIFICATIONS 

- **NTC Temperature Sensor** 

- **Rapid time response** 

- **Small bead diameter (Ø0.38mm Max)** 

- **Selection of resistance values and Resistance/Temperature characteristics available** 

- **Various lead types and lengths available** 

- **Custom designs available** 

Hermetically sealed glass-encapsulated thermistor welded to 40 AWG Solid Nickel leads with Polyester Type Insulation. Unit potted in polyimide tube using Epoxy Resin. The glass encapsulated thermistor bead extends from tube. Probe supplied on small spools with calibration data at +37 ºC. 

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## FEATURES 

Rapid Time Constant (30 milliseconds in liquids). Selection of resistance values and Resistance/Temperature characteristics available 0.3 mW/°C typ. Dissipation Constant in air at 25°C. Smaller than mini-BetaCURVE device. Temperature range 0ºC to +70ºC 

## APPLICATIONS 

Incorporation in catheters Insertion in hypodermic needles Insertion in small housings for instrumentation or medical applications 

Use in situation where fast time response is critical. Temperature control for bath showers. DNA research sensors. 

## PERFORMANCE SPECS 

|**Parameters**|**Units**|**Value**|
|---|---|---|
|Resistance @ +25°C|Ohms|22,000|
|Resistance @ +37°C|Ohms|14,004|
|Resistance tolerance @ 37°C|%|± 15|
|Alpha Value @ 25°C|%/°C|- 3.87|
|Beta Value25/85|K|3499|
|Time response in Liquids|milliseconds|30|
|Dissipation Constant  in still air|mW/°C|0.3|



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## MECHANICAL DETAILS 

|Dimension|Dimension|Dimension|Dimension|
|---|---|---|---|
|A|B|C|D|
|6.35 ± 1mm|1830 ± 50mm|1.75mm Typical|Ø 0.38mm Max|



Figure 1: Glass Bead Fast Time Response Probe 

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|RESISTANCE V TEMPERATURE TABLE||||||||
|---|---|---|---|---|---|---|---|
|**Temp.oC **<br>**Ohms**<br>**Temp.oC **<br>**Ohms**||**Temp.oC **||**Ohms**||**Temp.oC **|**Ohms**|
|0<br>62,150<br>1<br>59,437<br>2<br>56,858<br>3<br>54,406<br>4<br>52,074<br>5<br>49,855<br>6<br>47,743<br>7<br>45,733<br>8<br>43,819<br>9<br>41,995<br>10<br>40,258<br>11<br>38,603<br>12<br>37,025<br>13<br>35,521<br>14<br>34,086<br>15<br>32,717<br>16<br>31,410<br>17<br>30,163<br>18<br>28,973<br>19<br>27,836<br>20<br>26,750<br>21<br>25,713<br>22<br>24,721<br>23<br>23,773<br>24<br>22,867<br>**25**<br>**22,000**<br>26<br>21,171<br>27<br>20,377<br>28<br>19,618<br>29<br>18,891<br>30<br>18,195<br>31<br>17,528<br>32<br>16,890<br>33<br>16,278<br>34<br>15,691<br>35<br>15,129<br>36<br>14,590<br>37<br>14,004<br>38<br>13,577<br>39<br>13,101<br>40<br>12,645<br>41<br>12,206<br>42<br>11,786<br>43<br>11,382<br>44<br>10,994<br>45<br>10,621<br>46<br>10,263<br>47<br>9,918<br>48<br>9,588<br>49<br>9,269<br>50<br>8,964<br>51<br>8,669<br>52<br>8,386<br>53<br>8,114<br>54<br>7,852<br>55<br>7,599<br>56<br>7,357<br>57<br>7,123<br>58<br>6,897<br>59<br>6,680<br>60<br>6,471<br>61<br>6,270<br>62<br>6,076<br>63<br>5,889<br>64<br>5,708<br>65<br>5,534<br>66<br>5,366<br>67<br>5,204<br>68<br>5,048<br>69<br>4,897<br>70<br>4,752<br>~~aEEE~~||||||||
|ORDERING INFORMATION||||||||
|**Part Number **<br>**Description **||||**Ω@25ºC**||**MOQ**||
|G22K7MCD419<br>Glass Bead Fast Time response Probe||||22,000||1000 *||



* For quantities less than Minimum Order Quantity – contact distribution 

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NORTH AMERICA EUROPE ASIA<br>Measurement Specialties, Inc.,  Measurement Specialties (Europe), Ltd.,  Measurement Specialties (China), Ltd.,<br>a TE Connectivity Company  a TE Connectivity Company  a TE Connectivity Company<br>910 Turnpike Road  Ballybrit Business Park  No. 26 Langshan Road<br>Shrewsbury, MA 01545  Galway Ireland  Shenzhen High-Tech Park (North)<br>Tel:  1-508-842-0516  Tel:   +353-91-753238  Nanshan District, Shenzhen 518057<br>Fax: 1-508-842-0342  Fax:  +353-91-770789  China<br>Sales:  Sales:   Sales: temperature.cs.asia@meas-spec.com<br>temperature.cs.amer@meas-spec.com  temperature.cs.emea@meas-spec.com<br>**----- End of picture text -----**<br>


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