Model

Ihold

Itrip

Vmax

Vmax

Imax Pd max

OP

Interrupt

Current

Time

Rmin

Rmax

R1max

(A)

(A)

(Vdc)

Vrms

(A)

(w)

(A)

(S)

(Ω)

(Ω)

(Ω)

K250-040U 0.040

0.08

60

250

3

1.0

0.5

0.2

30

60

80

K250-060U 0.060

0.12

60

250

3

1.0

0.5

0.5

200

60

90

K250-080U 0.080

0.16

60

250

3

1.0

1

0.25

14

22

33

K250-090U 0.090

0.18

60

250

3

1.0

1

0.5

10

20

31

K250-110U 0.110

0.22

60

250

3

1.0

1

1.1

6

12

16

K250-120

0.120

0.24

60

250

3

1.0

1

1.2

5

10

14

K250-120U 0.120

0.24

60

250

3

1.0

1

1.2

6

11

16

K250-145U 0.145

0.29

60

250

3

1.0

1

2.5

3.5

6.5

14

K250-180T 0.180

0.65

60

250

10

1.8

3

3.0

1.0

2.2

4

K250-180U 0.180

0.65

60

250

10

1.8

3

1.5

2

4

6

K250-200U 0.200

0.40

60

250

10

2.4

3

5.0

3

6

9

K250-400U 0.400

0.80

60

250

10

2.8

3

8.0

1

3

6

K250-600U 0.600

1.20

60

250

10

3.2

3

12.0

0.6

2

5

K250-800U 0.800

1.60

60

250

10

3.6

5

18.0

0.4

1

3

Ihold

Itrip

Vmax OP

Vmax Interrupt

Imax

Pd

Rmin/max

Rmax

R1max

*CAUTION

-40

-20

0

25

40

50

60

70

80

0.060

0.053

0.047

0.040

0.034

0.031

0.027

0.024

0.019

0.090

0.080

0.070

0.060

0.050

0.046

0.041

0.036

0.029

0.124

0.110

0.095

0.080

0.066

0.059

0.051

0.044

0.033

0.171

0.151

0.131

0.110

0.091

0.081

0.071

0.061

0.046

0.191

0.170

0.148

0.120

0.104

0.093

0.082

0.071

0.055

0.225

0.199

0.172

0.145

0.119

0.106

0.093

0.080

0.060

0.269

0.240

0.211

0.180

0.153

0.138

0.123

0.109

0.087

0.300

0.266

0.234

0.200

0.170

0.154

0.136

0.120

0.096

0.600

0.532

0.468

0.400

0.340

0.308

0.272

0.240

0.192

0.900

0.798

0.702

0.600

0.510

0.462

0.408

0.360

0.288

1.200

1.064

0.936

0.800

0.680

0.616

0.544

0.480

0.384

Electrical characteristics(25℃)

Minimum device resistance prior to tripping at 25℃.

Typical power dissipatde from device when in the tripped state in 25℃ still air environment at rated voltage

Maximum Time To Trip

Maximum operating volatge(Vdc) device can withstand without damage at ratde current(Imax).

Maximum interrupt volatge(Vac) device can withstand without damage at ratde current.

Maximum fault current device can withstand without damage at rated voltage.

Resistance

Hold Current:Maximum current device will not trip in 25℃ still air.

Trip current:Minimum current at which the device will always trip in 25℃ still air

K250-200U

Part number

K250-040U

K250-060U

Maximum device resistance prior to tripping at 25℃.

Maximum device resistance one hour after it is trippde at 25℃ .

Operation beyond the specified rating may result in damage and possible arcing.

K250-400U

K250-600U

K250-800U

Maximum ambidnt operating temperatures(℃)

Thermal Derating Chart-IH(A)

K250-080U

K250-110U

K250-120/120U

K250-145U

K250-180T/180U

PPTC/K250 Series

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REV.2014.05.01