Philips kty85 DATASHEETS
DISCRETE SEMICONDUCTORS
DATA SH EET
ook, halfpage
M3D238
KTY85-1 series
Silicon temperature sensors
Product specification
Supersedes data of 1996 Dec 06
File under Discrete Semiconductors, SC17
1998 Mar 26
Philips Semiconductors Product specification
Silicon temperature sensors KTY85-1 series
DESCRIPTION
The temperature sensors in the KTY85-1 series have a
positive temperature coefficient of resistance and are
handbook, halfpage
ka
suitable for use in measurement and control systems.
The sensors are encapsulated in the SOD80 glass SMD
package.
Tolerances of 0.5% or other special selections are
MSB010 - 1
available on request.
The coloured marking band indicates the negative connection and
MARKING
TYPE NUMBER MARKING BAND COLOUR
the product type.
The sensor must be operated with the lower potential at the marked
connection.
KTY85-110 yellow
KTY85-120 red
Fig.1 Simplified outline (SOD80).
KTY85-121 white
KTY85-122 green
KTY85-150 grey
KTY85-151 black
KTY85-152 blue
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
R
25
sensor resistance T
amb
=25°C; I
cont
=1mA
KTY85-110 990 1010 Ω
KTY85-120 980 1020 Ω
KTY85-121 980 1000 Ω
KTY85-122 1000 1020 Ω
KTY85-150 950 1050 Ω
KTY85-151 950 1000 Ω
KTY85-152 1000 1050 Ω
T
amb
ambient operating temperature −40 +125 °C
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
I
cont
T
amb
continuous sensor current in free air; T
in free air; T
ambient operating temperature −40 +125 °C
=25°C − 10 mA
amb
= 125 °C − 2mA
amb
1998 Mar 26 2
Philips Semiconductors Product specification
Silicon temperature sensors KTY85-1 series
CHARACTERISTICS
T
=25°C, in liquid, unless otherwise specified.
amb
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
R
25
sensor resistance I
KTY85-110 990 − 1010 Ω
KTY85-120 980 − 1020 Ω
KTY85-121 980 − 1000 Ω
KTY85-122 1000 − 1020 Ω
KTY85-150 950 − 1050 Ω
KTY85-151 950 − 1000 Ω
KTY85-152 1000 − 1050 Ω
TC temperature coefficient − 0.76 − %/K
R
100/R25
R
−40/R25
resistance ratio T
resistance ratio T
τ thermal time constant; note 1 in still air − 20 − s
rated temperature range −40 − +125 °C
=1mA
cont
= 100 °C and 25 °C 1.65 1.67 1.69
amb
= −40 °C and 25 °C 0.569 0.577 0.585
amb
in still liquid; note 2 − 1 − s
in flowing liquid; note 2 − 0.5 − s
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
Silicon temperature sensors KTY85-1 series
Table 1 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature
error for KTY85-110 and KTY85-120
I
= 1 mA.
cont
AMBIENT
TEMPERATURE
(°C) (°F) (%/K)
−40 −40 0.93 562 577 592 ±2.81 556 577 598 ±3.88
−30 −22 0.91 617 632 647 ±2.62 611 632 654 ±3.72
−20 −4 0.88 677 691 706 ±2.42 670 691 713 ±3.56
−10 14 0.85 740 754 768 ±2.2 732 754 776 ±3.37
0 32 0.83 807 820 833 ±1.97 798 820 841 ±3.18
10 50 0.80 877 889 902 ±1.72 868 889 910 ±2.97
20 68 0.78 951 962 973 ±1.45 942 962 983 ±2.74
25 77 0.76 990 1000 1010 ±1.31 980 1000 1020 ±2.62
30 86 0.75 1027 1039 1050 ±1.44 1017 1039 1060 ±2.77
40 104 0.73 1105 1118 1132 ±1.7 1093 1118 1143 ±3.07
50 122 0.71 1185 1202 1219 ±1.98 1173 1202 1231 ±3.39
60 140 0.69 1268 1288 1309 ±2.27 1255 1288 1321 ±3.73
70 158 0.67 1355 1379 1402 ±2.58 1341 1379 1416 ±4.08
80 176 0.65 1445 1472 1500 ±2.9 1430 1472 1515 ±4.44
90 194 0.63 1537 1569 1601 ±3.24 1522 1569 1617 ±4.82
100 212 0.61 1633 1670 1707 ±3.59 1617 1670 1723 ±5.22
110 230 0.60 1732 1774 1816 ±3.95 1714 1774 1834 ±5.63
120 248 0.58 1834 1882 1929 ±4.34 1815 1882 1948 ±6.06
125 257 0.57 1886 1937 1987 ±4.53 1867 1937 2006 ±6.28
TEMP.
COEFF.
KTY85-110 KTY85-120
RESISTANCE
(Ω)
MIN. TYP. MAX. MIN. TYP. MAX.
TEMP.
ERROR
(K)
RESISTANCE
(Ω)
TEMP.
ERROR
(K)
1998 Mar 26 4
Loading...