Epcos B57620C5103 062 Series Handbuch - Seite 5

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SMD NTC Thermistor

SMD NTC Thermistor with Ni-Barrier Termination

Reliability

Tests of SMD NTC thermistors are made according to IEC 60068. The parts are mounted on standardized PCB

in accordance with IEC 60539-1.

Test

Standard

IEC 60068-2-2

Storage in

(=JIS C 0021)

dry heat

Storage in

IEC 60068-2-3

damp heat,

(=JIS C 0022)

steady state

Rapid

IEC 60068-2-14

temperature

(=JIS C 0025)

cycling

Endurance at

max

IEC 60068-2-58

Solderability

(=JIS C 0054)

Resistance

drift after

soldering

SEN NTC PD

Please read Cautions and warnings and

Important notes at the end of this document.

Test conditions

Storage at upper category

temperature

T: 125°C

t: 1000h

Temperature of air: 40°C

relative humidity of air: 93%

Duration: 21days

Lower test temperature: -55°C

Upper test temperature: 125°C

Number of cycles: 10

=210mW

max

Duration: 1000h

Solderability:

215°C/3s

235°C/2s

Resistance to soldering heat:

260°C/10s

reflow soldering profile

wave soldering profile

Page 5 of 13

B57620C5103*062

ΔR

/ R

Remarks

(typical)

< 3%

No visible damage

< 3%

< 5%

95% of termination

wetted

< 5%

2009-01-12