B57820M Просмотр технического описания (PDF) - TDK Corporation

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Компоненты Описание

производитель

B57820M

NTC thermistors for temperature measurement

TDK Corporation 

Temperature measurement and compensation

Leadless NTCs

B57820M

M820

Reliability data

Test

Storage in

dry heat

Storage in damp

heat, steady state

Rapid temperature

cycling

Endurance

Long-term stability

(empirical value)

Standard Test conditions

IEC

60068-2-2

IEC

60068-2-78

IEC

60068-2-14

Storage at upper

category temperature

T: 155 °C

t: 1000 h

Temperature of air: 40 °C

Relative humidity of air: 93%

Duration: 21 days

Lower test temperature: 55 °C

Upper test temperature: 155 °C

Number of cycles: 100

Pmax: 180 mW

t: 1000 h

Temperature: 70 °C

t: 10000 h

∆R25/R25

(typical)

< 3%

< 3%

< 3%

< 3%

< 5%

Remarks

No visible

damage

No visible

damage

No visible

damage

No visible

damage

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.

Please read Cautions and warnings and

Important notes at the end of this document.

Page 3 of 18

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