R25

W

Material

System

B Value

25/85°C

K

Maximum

Operating

Temperature

°F (°C)

Code

R25°C ± 1%

Code

R25°C ± 2%

Code

R25°C ± 3%

Code

R25°C ± 5%

Code

R25°C ± 10%

500

2

3540±1%

257(125)

NK501C2*2

NK501C2*3

NK501C2*5

NK501C*R10

500

2A

3627±1%

257(125)

NK501C2A*2

NK501C2A*3

NK501C2A*5

NK501C2A*10

1000

2

3540±1%

257(125)

NK102C2*2

NK102C2*3

NK102C2*5

NK102C2*10

1000

2A

3627±1%

257(125)

NK102C2A*2

NK102C2A*3

NK102C2A*5

NK102C2A*10

2000

2

3540±1%

257(125)

NK202C2*2

NK202C2*3

NK202C2*5

NK202C2*10

2000

2A

3627±1%

257(125)

NK202C2A*2

NK202C2A*3

NK202C2A*5

NK202C2A*10

2200

1

3977±0.75%

311(155)

NK222C1*1

NK222C1*2

NK222C1*3

NK222C1*5

NK222C1*10

2700

1

3977±0.75%

311(155)

NK272C1*1

NK272C1*2

NK272C1*3

NK272C1*5

NK272C1*10

5000

1

3977±0.75%

311(155)

NK502C1*1

NK502C1*2

NK502C1*3

NK502C1*5

NK502C1*10

5000

4A

3436±1%

311(155)

NK502C4A*1

NK502C4A*2

NK502C4A*3

NK502C4A*5

NK502C4A*10

10000

1

3977±0.75%

311(155)

NK103C1*1

NK103C1*2

NK103C1*3

NK103C1*5

NK103C1*10

10000

4A

3436±1%

311(155)

NK103C4A*1

NK103C4A*2

NK103C4A*3

NK103C4A*5

NK103C4A*10

10000

5

3740±1%

311(155)

NK103C5*1

NK103C5*2

NK103C5*3

NK103C5*5

NK103C5*10

12000

5

3740±1%

311(155)

NK123C5*1

NK123C5*2

NK123C5*3

NK123C5*5

NK123C5*10

30000

8

3977±1%

311(155)

NK303C8*1

NK303C8*2

NK303C8*3

NK303C8*5

NK303C8*10

50000

8

3977±1%

311(155)

NK503C8*1

NK503C8*2

NK503C8*3

NK503C8*5

NK503C8*10

See separate tables for resistance - temperature data.

3 mm

max

Ø 0.0195 in (0.5 mm)

3 mm

max

1.56 in (40 mm) min

0.195 in (5 mm)

max

0.27 in (7 mm)

max

0.0975 in (2.5 mm) nom

TypeNK

Specifications

Chipthermistorwithsolder-coatedwires

Ordering Information

Replace * in the codes shown above

as follows:

• Loose-packed:R

• Bandoliered:B

Options

Otherresistancevalueswithintherangesshown;

• e.g.codeNK701C2*2for700

W±2%at77°F

(25°C)

• Referencetemperaturesotherthan77°F(25°C)

• Wirelengths0.47into1.57in(12mmto40

mm)(±1mm)

Data

• Minimumoperatingtemperature:-40°F(-40°C)

• Maximumoperatingtemperature:Seetable

• Thermaltimeconstant:15s(cooling),2.45

(ambientchange)

• Dissipationfactor:2.2mW/K

• Mass:0.00040lbs(0.18g)

• Packing/MOQ:1000/box(loose)

2000/reel(bandoliered)

NTC Type NK Dimensions

AAS-920-573C 09/2015

www.amphenol-sensors.com

©2015AmphenolCorporation.AllRightsReserved.Specificationsaresubjecttochangewithoutnotice.

Othercompanynamesandproductnamesusedinthisdocumentaretheregisteredtrademarksor

trademarksoftheirrespectiveowners.

Amphenol

Advanced Sensors