Temperature measurement
B57864S
S864
Miniature sensors with bendable wires
Mounting instructions
1
Soldering
1.1
Leaded NTC thermistors
Leaded thermistors comply with the solderability requirements specified by CECC.
When soldering, care must be taken that the NTC thermistors are not damaged by excessive
heat. The following maximum temperatures, maximum time spans and minimum distances have
to be observed:
Dip soldering
max. 260 °C
max. 4 s
Iron soldering
max. 360 °C
max. 2 s
Bath temperature
Soldering time
Distance from thermistor
min. 6 mm
min. 6 mm
Under more severe soldering conditions the resistance may change.
1.1.1 Wave soldering
Temperature characteristic at component terminal with dual wave soldering
1.2
Leadless NTC thermistors
In case of NTC thermistors without leads, soldering is restricted to devices which are provided
with a solderable metallization. The temperature shock caused by the application of hot solder
may produce fine cracks in the ceramic, resulting in changes in resistance.
To prevent leaching of the metallization, solder with silver additives or with a low tin content
Please read Cautions and warnings and
Important notes at the end of this document.
Page 7 of 21