Electrical specification and ordering codes

Ω

No. of R/T

characteristic

K

Ordering code

1 k

1011

3730

±3%

B57045K0102K000

2.2 k

1013

3900

±3%

B57045K0222K000

4.7 k

4001

3950

±3%

B57045K0472K000

6.8 k

2903

4200

±3%

B57045K0682K000

10 k

2904

4300

±3%

B57045K0103K000

33 k

1012

4300

±3%

B57045K0333K000

47 k

4003

4450

±3%

B57045K0473K000

68 k

2005

4600

±3%

B57045K0683K000

100 k

2005

4600

±3%

B57045K0104K000

150 k

2005

4600

±3%

B57045K0154K000

Reliability data

Test

Standard

Test conditions

∆R

(typical)

Remarks

Storage in

dry heat

IEC

60068-2-2

Storage at upper

category temperature

T: 125

°C

t: 1000 h

< 3%

No visible

damage

Storage in damp

heat, steady state

IEC

60068-2-78

Temperature of air: 40

°C

Relative humidity of air: 93%

Duration: 56 days

< 3%

No visible

damage

Endurance

t: 1000 h

< 3%

No visible

damage

Long-term stability

(empirical value)

Temperature: 100

°C

t: 10000 h

< 5%

No visible

damage

Note

Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be

ensured that no water enters the NTC thermistors (e.g. through plug terminals).

Avoid dewing and condensation unless thermistor is specified for these conditions.

Temperature measurement

B57045K

Probe assemblies

K45

Page 3 of 11

Please read Cautions and warnings and

Important notes at the end of this document.