PTS AT

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Vishay Beyschlag

Revision: 25-Jun-2019

4

Document Number: 28899

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FUNCTIONAL PERFORMANCE

The temperature resistance relationships of the PTS series

follow different equations:

For the temperature range of -55 °C up to 0 °C:

RT = R0 x (1 + A x T + B x T2 + C x (T - 100 °C) x T3)

And for the temperature range of 0 °C up to +175 °C:

RT = R0 x (1 + A x T + B x T2)

RT: Resistance as a function of temperature

R0: Nominal resistance value at 0 °C

T: Temperature in °C

According to IEC 60751 the values of the coefficients are:

A = 3.9083 x 10-3 °C-1



B = -5.775 x 10-7 °C-2



C = -4.183 x 10-12 °C-4

The tolerances values of the PTS AT series are classified by

the following equations as specified by IEC 60751:

Class F0.3:

T

F0.3 = ± (0.3 + 0.005 x |T|)

Class F0.6:

T

F0.6 = ± (0.6 + 0.010 x |T|)

NOMINAL RESISTANCE VALUES AND TEMPERATURE TOLERANCE

TEMPERATURE

in °C

NOMINAL RESISTANCE in



TOLERANCE in K

R0 = 100 

R0 = 500 

R0 = 1000 

CLASS F0.3

CLASS F0.6

-55

78.319

391.59

783.19

± 0.58

± 1.15

-50

80.306

401.53

803.06

± 0.55

± 1.10

-25

90.192

450.96

901.92

± 0.43

± 0.85

0

100.00

500.00

1000.00

± 0.30

± 0.60

25

109.73

548.67

1097.35

± 0.43

± 0.85

50

119.40

596.99

1193.97

± 0.55

± 1.10

75

128.99

644.94

1289.87

± 0.68

± 1.35

100

138.51

692.53

1385.06

± 0.80

± 1.60

125

147.95

739.76

1479.51

± 0.93

± 1.85

150

157.33

786.63

1573.25

± 1.05

± 2.10

175

166.63

833.13

1666.27

± 1.18

± 2.35

- 75

0

175

Temperature in °C

- 50

- 25

25

50

75

100

125

150

Ratio RT/R0

0.7

0.8

1.0

1.2

1.4

1.6

1.7

0.9

1.1

1.3

1.5

- 75

0

175

Temperature in °C

- 50

- 25

25

50

75

100

125

150

0.0

0.2

2.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0.4

Tolerances for ClassF0.3 and F0.6

0.0

0.1

1.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

0.2

F0.6 Temp. Tol.

F0.6

R

0 Tol.

F0.3

R

0 Tol.

F0.3 Temp. Tol.