Datasheet KTY81-252, KTY81-251, KTY81-250, KTY81-221, KTY81-210 Datasheet (Philips)

DISCRETE SEMICONDUCTORS

DATA SH EET

ook, halfpage

M3D053

KTY81-2 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 KTY81-2 series

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

KTY81-210 210
KTY81-220 220
KTY81-221 221
KTY81-222 222
KTY81-250 250
KTY81-251 251
KTY81-252 252

QUICK REFERENCE DATA

PINNING

PIN DESCRIPTION

1 electrical contact
2 electrical contact
3 not to be connected to a potential

handbook, halfpage

3

Fig.1 Simplified outline (SOD70).

1

2

MBH739

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

R

25

sensor resistance T

amb

=25°C; I

cont

=1mA
KTY81-210 1980 2020 Ω
KTY81-220 1960 2040 Ω
KTY81-221 1960 2000 Ω
KTY81-222 2000 2040 Ω
KTY81-250 1900 2100 Ω
KTY81-251 1900 2000 Ω
KTY81-252 2000 2100 Ω

T

amb

ambient operating

−55 +150 °C

temperature

1998 Mar 26 2

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

I

cont

T

amb

CHARACTERISTICS

=25°C, in liquid, unless otherwise specified.

T

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

R

25

TC temperature coefficient − 0.79 − %/K
R

100/R25

R

−55/R25

τ thermal time constant; note 1 in still air − 30 − s

continuous sensor current in free air; T

in free air; T

=25°C − 10 mA

amb

= 150 °C − 2mA

amb

ambient operating temperature −55 +150 °C

sensor resistance I

cont

=1mA
KTY81-210 1980 − 2020 Ω
KTY81-220 1960 − 2040 Ω
KTY81-221 1960 − 2000 Ω
KTY81-222 2000 − 2040 Ω
KTY81-250 1900 − 2100 Ω
KTY81-251 1900 − 2000 Ω
KTY81-252 2000 − 2100 Ω

resistance ratio T
resistance ratio T

= 100 °C and 25 °C 1.676 1.696 1.716

amb

= −55 °C and 25 °C 0.480 0.490 0.500

amb

in still liquid; note 2 − 5 − s
in flowing liquid; note 2 − 3 − s

rated temperature range −55 − +150 °C

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 KTY81-2 series

Table 1 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature

error for KTY81-210 and KTY81-220

I

= 1 mA.

cont

AMBIENT

TEMPERATURE

(°C) (°F) (%/K)

−55 −67 0.99 951 980 1009 ±3.02 941 980 1019 ±4.02

−50 −58 0.98 1000 1030 1059 ±2.92 990 1030 1070 ±3.94

−40 −40 0.96 1105 1135 1165 ±2.74 1094 1135 1176 ±3.78

−30 −22 0.93 1218 1247 1277 ±2.55 1205 1247 1289 ±3.62

−20 −4 0.91 1338 1367 1396 ±2.35 1325 1367 1410 ±3.45

−10 14 0.88 1467 1495 1523 ±2.14 1452 1495 1538 ±3.27

0 32 0.85 1603 1630 1656 ±1.91 1587 1630 1673 ±3.08
10 50 0.83 1748 1772 1797 ±1.67 1730 1772 1814 ±2.88
20 68 0.80 1901 1922 1944 ±1.41 1881 1922 1963 ±2.66
25 77 0.79 1980 2000 2020 ±1.27 1960 2000 2040 ±2.54
30 86 0.78 2057 2080 2102 ±1.39 2036 2080 2123 ±2.68
40 104 0.75 2217 2245 2272 ±1.64 2194 2245 2295 ±2.97
50 122 0.73 2383 2417 2451 ±1.91 2359 2417 2475 ±3.28
60 140 0.71 2557 2597 2637 ±2.19 2531 2597 2663 ±3.61
70 158 0.69 2737 2785 2832 ±2.49 2709 2785 2860 ±3.94
80 176 0.67 2924 2980 3035 ±2.8 2894 2980 3065 ±4.3
90 194 0.65 3118 3182 3246 ±3.12 3086 3182 3278 ±4.66

100 212 0.63 3318 3392 3466 ±3.46 3284 3392 3500 ±5.05
110 230 0.59 3523 3607 3691 ±3.93 3487 3607 3728 ±5.61
120 248 0.53 3722 3817 3912 ±4.7 3683 3817 3950 ±6.59
125 257 0.49 3815 3915 4016 ±5.26 3775 3915 4055 ±7.31
130 266 0.44 3901 4008 4114 ±6 3861 4008 4154 ±8.27
140 284 0.33 4049 4166 4283 ±8.45 4008 4166 4325 ±11.46
150 302 0.20 4153 4280 4407 ±14.63 4110 4280 4450 ±19.56

TEMP.

COEFF.

KTY81-210 KTY81-220

RESISTANCE

(Ω)

MIN. TYP. MAX. MIN. TYP. MAX.

TEMP.

ERROR

(K)

RESISTANCE

(Ω)

TEMP.

ERROR

(K)

1998 Mar 26 4

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

Table 2 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature

error for KTY81-221 and KTY81-222

I

= 1 mA.

cont

AMBIENT

TEMPERATURE

(°C) (°F) (%/K)

−55 −67 0.99 941 970 999 ±3.02 960 990 1020 ±3.02

−50 −58 0.98 990 1019 1049 ±2.92 1010 1040 1070 ±2.92

−40 −40 0.96 1094 1123 1153 ±2.74 1116 1146 1176 ±2.74

−30 −22 0.93 1205 1235 1264 ±2.55 1230 1260 1290 ±2.55

−20 −4 0.91 1325 1354 1382 ±2.35 1352 1381 1410 ±2.35

−10 14 0.88 1452 1480 1508 ±2.14 1481 1510 1538 ±2.14

0 32 0.85 1587 1613 1640 ±1.91 1619 1646 1673 ±1.91
10 50 0.83 1730 1754 1779 ±1.67 1765 1790 1815 ±1.67
20 68 0.80 1882 1903 1924 ±1.41 1920 1941 1963 ±1.41
25 77 0.79 1960 1980 2000 ±1.27 2000 2020 2040 ±1.27
30 86 0.78 2037 2059 2081 ±1.39 2078 2100 2123 ±1.39
40 104 0.75 2195 2222 2250 ±1.64 2239 2267 2295 ±1.64
50 122 0.73 2360 2393 2426 ±1.91 2407 2441 2475 ±1.91
60 140 0.71 2531 2571 2611 ±2.19 2582 2623 2664 ±2.19
70 158 0.69 2710 2757 2804 ±2.49 2764 2812 2860 ±2.49
80 176 0.67 2895 2950 3005 ±2.8 2953 3009 3065 ±2.8
90 194 0.65 3086 3150 3214 ±3.12 3149 3214 3279 ±3.12

100 212 0.63 3285 3358 3431 ±3.46 3351 3426 3501 ±3.46
110 230 0.59 3488 3571 3655 ±3.93 3558 3643 3728 ±3.93
120 248 0.53 3684 3779 3873 ±4.7 3759 3855 3951 ±4.7
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

TEMP.

COEFF.

KTY81-221 KTY81-222

RESISTANCE

(Ω)

MIN. TYP. MAX. MIN. TYP. MAX.

TEMP.

ERROR

(K)

RESISTANCE

(Ω)

TEMP.

ERROR

(K)

1998 Mar 26 5

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

Table 3 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature

error for KTY81-250 and KTY81-251

I

= 1 mA.

cont

AMBIENT

TEMPERATURE

(°C) (°F) (%/K)

−55 −67 0.99 911 980 1049 ±7.04 913 956 999 ±4.52

−50 −58 0.98 959 1030 1101 ±6.99 960 1004 1048 ±4.45

−40 −40 0.96 1060 1135 1210 ±6.91 1061 1106 1152 ±4.3

−30 −22 0.93 1168 1247 1327 ±6.84 1169 1216 1263 ±4.16

−20 −4 0.91 1283 1367 1451 ±6.77 1285 1333 1381 ±4.01

−10 14 0.88 1407 1495 1583 ±6.69 1408 1457 1507 ±3.84

0 32 0.85 1538 1630 1721 ±6.61 1539 1589 1639 ±3.67
10 50 0.83 1677 1772 1867 ±6.51 1678 1728 1778 ±3.48
20 68 0.80 1824 1922 2021 ±6.41 1825 1874 1923 ±3.28
25 77 0.79 1900 2000 2100 ±6.35 1900 1950 2000 ±3.18
30 86 0.78 1974 2080 2185 ±6.55 1975 2028 2080 ±3.33
40 104 0.75 2127 2245 2362 ±6.97 2129 2189 2248 ±3.64
50 122 0.73 2287 2417 2547 ±7.4 2289 2357 2425 ±3.97
60 140 0.71 2453 2597 2741 ±7.85 2455 2532 2609 ±4.31
70 158 0.69 2626 2785 2943 ±8.31 2628 2715 2802 ±4.67
80 176 0.67 2805 2980 3154 ±8.79 2807 2905 3003 ±5.05
90 194 0.65 2990 3182 3374 ±9.29 2993 3102 3212 ±5.43

100 212 0.63 3182 3392 3602 ±9.81 3185 3307 3429 ±5.84
110 230 0.59 3379 3607 3836 ±10.65 3382 3517 3652 ±6.45
120 248 0.53 3569 3817 4065 ±12.25 3573 3721 3870 ±7.53
125 257 0.49 3658 3915 4173 ±13.45 3662 3817 3973 ±8.33
130 266 0.44 3741 4008 4274 ±15.06 3745 3907 4070 ±9.4
140 284 0.33 3883 4166 4450 ±20.49 3887 4062 4237 ±12.96
150 302 0.20 3982 4280 4578 ±34.35 3987 4173 4359 ±22.02

TEMP.

COEFF.

KTY81-250 KTY81-251

RESISTANCE

(Ω)

MIN. TYP. MAX. MIN. TYP. MAX.

TEMP.

ERROR

(K)

RESISTANCE

(Ω)

TEMP.

ERROR

(K)

1998 Mar 26 6

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

Table 4 Ambient temperature, corresponding resistance, temperature coefficient and maximum expected temperature

error for KTY81-252

I

= 1 mA.

cont

AMBIENT

TEMPERATURE

(°C) (°F) (%/K)

−55 −67 0.99 959 1005 1050 ±4.52

−50 −58 0.98 1009 1055 1102 ±4.45

−40 −40 0.96 1115 1163 1211 ±4.3

−30 −22 0.93 1229 1278 1328 ±4.16

−20 −4 0.91 1351 1401 1452 ±4.01

−10 14 0.88 1480 1532 1584 ±3.84

0 32 0.85 1618 1670 1723 ±3.67
10 50 0.83 1764 1817 1869 ±3.48
20 68 0.80 1919 1970 2022 ±3.28
25 77 0.79 2000 2050 2100 ±3.18
30 86 0.78 2077 2132 2187 ±3.33
40 104 0.75 2238 2301 2364 ±3.64
50 122 0.73 2406 2478 2549 ±3.97
60 140 0.71 2581 2662 2743 ±4.31
70 158 0.69 2763 2854 2946 ±4.67
80 176 0.67 2951 3054 3157 ±5.05
90 194 0.65 3147 3262 3376 ±5.43

100 212 0.63 3349 3477 3605 ±5.84
1 10 230 0.59 3556 3697 3839 ±6.45
120 248 0.53 3756 3912 4068 ±7.53
125 257 0.49 3850 4013 4177 ±8.33
130 266 0.44 3937 4108 4278 ±9.4
140 284 0.33 4087 4271 4455 ±12.96
150 302 0.20 4191 4387 4583 ±22.02

TEMP. COEFF. KTY81-252

RESIST ANCE

(Ω)

MIN. TYP. MAX.

TEMP.

ERROR

(K)

1998 Mar 26 7

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

T

-221

-222

amb

MGG695

(°C)

15

handbook, halfpage

∆T

(K)

10

5

0

−5

−10

−15

KTY81-251

-252

KTY81-220

KTY81-210

−50 150

0 50 100

Fig.2 Maximum expected temperature error (∆T).

T

MSA922

amb

(°C)

4.8

handbook, halfpage

R

(kΩ)

3.2

1.6

0

−100 −50 0

I

= 1 mA.

cont

50 100 150 200

Fig.3 Sensor resistance as a function of ambient

temperature; average values.

handbook, halfpage

5

R

(kΩ)

4

3

2

1

0

−1

10

To keep the temperature error low, an operating current of

= 1 mA is recommended for temperatures above 100 °C.

I

cont

150 °C
125 °C

100 °C

75 °C
50 °C

25 °C

0 °C

−25 °C

−50 °C

110

I

cont

MGG700

(mA)

Fig.4 Sensor resistance as a function of operating

current.

1998 Mar 26 8

12

handbook, halfpage

I

cont

(mA)

8

4

0

−50 0 50 150

100

T

Fig.5 Maximum operating current for safe

operation.

amb

MGG705

(°C)

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

(mA)

MGG703

2

handbook, halfpage

30

∆R

(Ω)

20

10

0

−10

01

T

=25°C.

amb

I

cont

Fig.6 Deviation of sensor resistance as a function

of operating current in still liquid.

APPLICATION INFORMATION

SYMBOL PARAMETER CONDITIONS TYP. UNIT

∆R

25

drift of sensor resistance at 25 °C 10000 hours continuous operation;

T

= 150 °C

amb

0.5 Ω

1998 Mar 26 9

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

PACKAGING

Sensors in SOD70 encapsulation are delivered in bulk packaging, and also reel packaging for automatic placement on
hybrid circuits and printed-circuit boards (see Fig.7).

Note: Types in bulk packaging have a lead-to-lead distance of 2.54 millimetres, whereas the distance for types packaged
on reel is 5.08 millimetres.

handbook, full pagewidth

H

1

H

0

P

A

1

A

H

2

L

F

12

P

2

F

F

P

0

D

0

(p)

W

2

W

0

W

1

W

MBH795

T

∆h∆h

t

1

t

Fig.7 Configuration of bandolier.

1998 Mar 26 10

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

Table 5 Tape specification

SYMBOL DIMENSION

REMARKS

MIN. NOM. MAX. TOL. UNIT

SPECIFICATIONS

A

1

body width 4.4 − 4.8 − mm
A body height 5 − 5.2 − mm
T body thickness 3.6 − 3.9 − mm
P pitch of component − 12.7 −±1mm
P

0

feed hole pitch − 12.7 −±0.3 mm

cumulative pitch error −−−±0.1 note 1
P

2

feed hole centre to component

centre

− 6.35 −±0.4 mm to be measured at bottom
of clinch

F lead-to-lead distance − 5.08 − +0.6/−0.2 mm
∆h component alignment − 01− mm at top of body
W tape width − 18 −±0.5 mm
W
W
W
H
H

0
1

2
0
1

hold-down tape width − 6 −±0.2 mm
hole position − 9 − +0.7/−0.5 mm
hold-down tape position − 0.5 −±0.2 mm
lead wire clinch height − 16.5 −±0.5 mm

component height −−23.25 − mm
L length of snipped leads −−11 − mm
D

0

t total tape thickness −−1.2 − mm t

, F

F

1

H

2

feed hole diameter − 4 −±0.2 mm

lead to snipped lead distance − 2.54 − +0.4/−0.2 mm

2

clinch height − 2.5 − +0.5/0 mm

= 0.3 to 0.6

1

(p) pull-out force 6 −−− N

Note

1. Measured over 20 devices.

1998 Mar 26 11

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

PACKAGE OUTLINE

Plastic near cylindrical single-ended package; 2 in-line leads SOD70

c

E

d

A L

1

D

2

b

1

0 2.5 5 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT

Notes

1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.

mm

OUTLINE

VERSION

SOD70

A

5.2

5.0

b

0.48

0.40

b

c

D

d

1

0.66

0.45

0.40

4.8

4.4

0.56

IEC JEDEC EIAJ

E

1.7

4.2

1.4

3.6

REFERENCES

e

2.54

L

14.5

12.7

(1)

L

1

max.

2.5

L

2

L

1

L

2

0.7

0.5

EUROPEAN

PROJECTION

b

e

ISSUE DATE

97-05-30

1998 Mar 26 12

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

DEFINITIONS

Data Sheet Status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

1998 Mar 26 13

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

NOTES

1998 Mar 26 14

Philips Semiconductors Product specification

Silicon temperature sensors KTY81-2 series

NOTES

1998 Mar 26 15

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Printed in The Netherlands 115106/00/03/pp16 Date of release: 1998 Mar 26 Document order number: 9397 750 03623