DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
M3D053
KTY81-2 series
Silicon temperature sensors
Product specification |
1998 Mar 26 |
Supersedes data of 1996 Dec 06
File under Discrete Semiconductors, SC17
Philips Semiconductors |
Product specification |
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Silicon temperature sensors |
KTY81-2 series |
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DESCRIPTION
The temperature sensors in the KTY81-2 series have a positive temperature coefficient of resistance and are suitable for use in measurement and control systems. The sensors are encapsulated in the SOD70 leaded plastic package.
Tolerances of 0.5% or other special selections are available on request.
MARKING
TYPE NUMBER |
CODE |
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KTY81-210 |
210 |
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KTY81-220 |
220 |
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KTY81-221 |
221 |
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KTY81-222 |
222 |
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KTY81-250 |
250 |
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KTY81-251 |
251 |
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KTY81-252 |
252 |
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QUICK REFERENCE DATA
PINNING
PIN |
DESCRIPTION |
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1 |
electrical contact |
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2 |
electrical contact |
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3 |
not to be connected to a potential |
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handbook, halfpage |
1 |
3
2
MBH739
Fig.1 Simplified outline (SOD70).
SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
MAX. |
UNIT |
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R25 |
sensor resistance |
Tamb = 25 °C; Icont = 1 mA |
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KTY81-210 |
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1980 |
2020 |
Ω |
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KTY81-220 |
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1960 |
2040 |
Ω |
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KTY81-221 |
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1960 |
2000 |
Ω |
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KTY81-222 |
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2000 |
2040 |
Ω |
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KTY81-250 |
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1900 |
2100 |
Ω |
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KTY81-251 |
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1900 |
2000 |
Ω |
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KTY81-252 |
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2000 |
2100 |
Ω |
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Tamb |
ambient operating |
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−55 |
+150 |
°C |
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temperature |
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1998 Mar 26 |
2 |
Philips Semiconductors |
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Product specification |
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Silicon temperature sensors |
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KTY81-2 series |
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LIMITING VALUES |
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In accordance with the Absolute Maximum Rating System (IEC 134). |
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SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
MAX. |
UNIT |
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Icont |
continuous sensor current |
in free air; Tamb = 25 °C |
− |
10 |
mA |
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in free air; Tamb = 150 °C |
− |
2 |
mA |
Tamb |
ambient operating temperature |
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−55 |
+150 |
°C |
CHARACTERISTICS
Tamb = 25 °C, in liquid, unless otherwise specified.
SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
TYP. |
MAX. |
UNIT |
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R25 |
sensor resistance |
Icont = 1 mA |
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KTY81-210 |
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1980 |
− |
2020 |
Ω |
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KTY81-220 |
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1960 |
− |
2040 |
Ω |
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KTY81-221 |
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1960 |
− |
2000 |
Ω |
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KTY81-222 |
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2000 |
− |
2040 |
Ω |
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KTY81-250 |
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1900 |
− |
2100 |
Ω |
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KTY81-251 |
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1900 |
− |
2000 |
Ω |
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KTY81-252 |
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2000 |
− |
2100 |
Ω |
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TC |
temperature coefficient |
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− |
0.79 |
− |
%/K |
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R100/R25 |
resistance ratio |
Tamb = 100 °C and 25 °C |
1.676 |
1.696 |
1.716 |
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R−55/R25 |
resistance ratio |
Tamb = −55 °C and 25 °C |
0.480 |
0.490 |
0.500 |
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τ |
thermal time constant; note 1 |
in still air |
− |
30 |
− |
s |
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in still liquid; note 2 |
− |
5 |
− |
s |
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in flowing liquid; note 2 |
− |
3 |
− |
s |
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rated temperature range |
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−55 |
− |
+150 |
°C |
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Notes
1.The thermal time constant is the time taken for the sensor to reach 63.2% of the total temperature difference. For example, if a sensor with a temperature of 25 °C is moved to an environment with an ambient temperature of 100 °C, the time for the sensor to reach a temperature of 72.4 °C is the thermal time constant.
2.Inert liquid, e.g. FC43 manufactured by the 3M company.
1998 Mar 26 |
3 |
Philips Semiconductors |
Product specification |
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Silicon temperature sensors |
KTY81-2 series |
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Table 1 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature error for KTY81-210 and KTY81-220
Icont = 1 mA.
AMBIENT |
TEMP. |
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KTY81-210 |
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KTY81-220 |
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TEMPERATURE |
COEFF. |
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RESISTANCE |
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TEMP. |
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RESISTANCE |
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TEMP. |
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(Ω) |
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(Ω) |
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(°C) |
(°F) |
(%/K) |
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ERROR |
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ERROR |
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MIN. |
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TYP. |
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MAX. |
(K) |
MIN. |
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TYP. |
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MAX. |
(K) |
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−55 |
−67 |
0.99 |
951 |
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980 |
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1009 |
±3.02 |
941 |
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980 |
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1019 |
±4.02 |
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−50 |
−58 |
0.98 |
1000 |
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1030 |
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1059 |
±2.92 |
990 |
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1030 |
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1070 |
±3.94 |
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−40 |
−40 |
0.96 |
1105 |
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1135 |
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1165 |
±2.74 |
1094 |
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1135 |
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1176 |
±3.78 |
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−30 |
−22 |
0.93 |
1218 |
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1247 |
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1277 |
±2.55 |
1205 |
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1247 |
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1289 |
±3.62 |
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−20 |
−4 |
0.91 |
1338 |
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1367 |
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1396 |
±2.35 |
1325 |
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1367 |
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1410 |
±3.45 |
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−10 |
14 |
0.88 |
1467 |
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1495 |
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1523 |
±2.14 |
1452 |
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1495 |
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1538 |
±3.27 |
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0 |
32 |
0.85 |
1603 |
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1630 |
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1656 |
±1.91 |
1587 |
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1630 |
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1673 |
±3.08 |
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10 |
50 |
0.83 |
1748 |
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1772 |
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1797 |
±1.67 |
1730 |
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1772 |
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1814 |
±2.88 |
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20 |
68 |
0.80 |
1901 |
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1922 |
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1944 |
±1.41 |
1881 |
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1922 |
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1963 |
±2.66 |
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25 |
77 |
0.79 |
1980 |
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2000 |
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2020 |
±1.27 |
1960 |
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2000 |
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2040 |
±2.54 |
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30 |
86 |
0.78 |
2057 |
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2080 |
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2102 |
±1.39 |
2036 |
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2080 |
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2123 |
±2.68 |
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40 |
104 |
0.75 |
2217 |
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2245 |
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2272 |
±1.64 |
2194 |
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2245 |
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2295 |
±2.97 |
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50 |
122 |
0.73 |
2383 |
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2417 |
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2451 |
±1.91 |
2359 |
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2417 |
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2475 |
±3.28 |
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60 |
140 |
0.71 |
2557 |
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2597 |
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2637 |
±2.19 |
2531 |
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2597 |
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2663 |
±3.61 |
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70 |
158 |
0.69 |
2737 |
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2785 |
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2832 |
±2.49 |
2709 |
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2785 |
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2860 |
±3.94 |
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80 |
176 |
0.67 |
2924 |
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2980 |
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3035 |
±2.8 |
2894 |
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2980 |
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3065 |
±4.3 |
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90 |
194 |
0.65 |
3118 |
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3182 |
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3246 |
±3.12 |
3086 |
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3182 |
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3278 |
±4.66 |
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100 |
212 |
0.63 |
3318 |
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3392 |
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3466 |
±3.46 |
3284 |
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3392 |
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3500 |
±5.05 |
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110 |
230 |
0.59 |
3523 |
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3607 |
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3691 |
±3.93 |
3487 |
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3607 |
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3728 |
±5.61 |
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120 |
248 |
0.53 |
3722 |
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3817 |
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3912 |
±4.7 |
3683 |
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3817 |
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3950 |
±6.59 |
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125 |
257 |
0.49 |
3815 |
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3915 |
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4016 |
±5.26 |
3775 |
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3915 |
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4055 |
±7.31 |
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130 |
266 |
0.44 |
3901 |
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4008 |
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4114 |
±6 |
3861 |
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4008 |
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4154 |
±8.27 |
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140 |
284 |
0.33 |
4049 |
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4166 |
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4283 |
±8.45 |
4008 |
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4166 |
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4325 |
±11.46 |
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150 |
302 |
0.20 |
4153 |
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4280 |
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4407 |
±14.63 |
4110 |
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4280 |
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4450 |
±19.56 |
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1998 Mar 26 |
4 |
Philips Semiconductors |
Product specification |
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Silicon temperature sensors |
KTY81-2 series |
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Table 2 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature error for KTY81-221 and KTY81-222
Icont = 1 mA.
AMBIENT |
TEMP. |
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KTY81-221 |
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KTY81-222 |
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TEMPERATURE |
COEFF. |
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RESISTANCE |
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TEMP. |
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RESISTANCE |
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TEMP. |
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(Ω) |
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(Ω) |
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(°C) |
(°F) |
(%/K) |
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ERROR |
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ERROR |
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MIN. |
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TYP. |
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MAX. |
(K) |
MIN. |
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TYP. |
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MAX. |
(K) |
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−55 |
−67 |
0.99 |
941 |
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970 |
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999 |
±3.02 |
960 |
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990 |
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1020 |
±3.02 |
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−50 |
−58 |
0.98 |
990 |
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1019 |
|
1049 |
±2.92 |
1010 |
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1040 |
|
1070 |
±2.92 |
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−40 |
−40 |
0.96 |
1094 |
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1123 |
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1153 |
±2.74 |
1116 |
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1146 |
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1176 |
±2.74 |
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−30 |
−22 |
0.93 |
1205 |
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1235 |
|
1264 |
±2.55 |
1230 |
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1260 |
|
1290 |
±2.55 |
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−20 |
−4 |
0.91 |
1325 |
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1354 |
|
1382 |
±2.35 |
1352 |
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1381 |
|
1410 |
±2.35 |
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−10 |
14 |
0.88 |
1452 |
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1480 |
|
1508 |
±2.14 |
1481 |
|
1510 |
|
1538 |
±2.14 |
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0 |
32 |
0.85 |
1587 |
|
1613 |
|
1640 |
±1.91 |
1619 |
|
1646 |
|
1673 |
±1.91 |
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10 |
50 |
0.83 |
1730 |
|
1754 |
|
1779 |
±1.67 |
1765 |
|
1790 |
|
1815 |
±1.67 |
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20 |
68 |
0.80 |
1882 |
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1903 |
|
1924 |
±1.41 |
1920 |
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1941 |
|
1963 |
±1.41 |
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25 |
77 |
0.79 |
1960 |
|
1980 |
|
2000 |
±1.27 |
2000 |
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2020 |
|
2040 |
±1.27 |
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30 |
86 |
0.78 |
2037 |
|
2059 |
|
2081 |
±1.39 |
2078 |
|
2100 |
|
2123 |
±1.39 |
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40 |
104 |
0.75 |
2195 |
|
2222 |
|
2250 |
±1.64 |
2239 |
|
2267 |
|
2295 |
±1.64 |
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50 |
122 |
0.73 |
2360 |
|
2393 |
|
2426 |
±1.91 |
2407 |
|
2441 |
|
2475 |
±1.91 |
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60 |
140 |
0.71 |
2531 |
|
2571 |
|
2611 |
±2.19 |
2582 |
|
2623 |
|
2664 |
±2.19 |
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70 |
158 |
0.69 |
2710 |
|
2757 |
|
2804 |
±2.49 |
2764 |
|
2812 |
|
2860 |
±2.49 |
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80 |
176 |
0.67 |
2895 |
|
2950 |
|
3005 |
±2.8 |
2 953 |
|
3009 |
|
3065 |
±2.8 |
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90 |
194 |
0.65 |
3086 |
|
3150 |
|
3214 |
±3.12 |
3149 |
|
3214 |
|
3279 |
±3.12 |
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100 |
212 |
0.63 |
3285 |
|
3358 |
|
3431 |
±3.46 |
3351 |
|
3426 |
|
3501 |
±3.46 |
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110 |
230 |
0.59 |
3488 |
|
3571 |
|
3655 |
±3.93 |
3558 |
|
3643 |
|
3728 |
±3.93 |
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|
120 |
248 |
0.53 |
3684 |
|
3779 |
|
3873 |
±4.7 |
3759 |
|
3855 |
|
3951 |
±4.7 |
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125 |
257 |
0.49 |
3776 |
|
3876 |
|
3976 |
±5.26 |
3853 |
|
3955 |
|
4056 |
±5.26 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
130 |
266 |
0.44 |
3862 |
|
3967 |
|
4073 |
±6 |
3940 |
|
4048 |
|
4155 |
±6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
140 |
284 |
0.33 |
4009 |
|
4125 |
|
4241 |
±8.45 |
4090 |
|
4208 |
|
4326 |
±8.45 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
150 |
302 |
0.20 |
4112 |
|
4237 |
|
4363 |
±14.63 |
4195 |
|
4323 |
|
4451 |
±14.63 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1998 Mar 26 |
5 |