Wave soldering

Temperature characteristic at component terminal with dual wave soldering

2

Robustness of terminations

The leads meet the requirements of IEC 60068-2-21. They may not be bent closer than 4 mm

from the solder joint on the thermistor body or from the point at which they leave the feed-

throughs. During bending, any mechanical stress at the outlet of the leads must be removed. The

bending radius should be at least 0.75 mm.

Tensile strength:

Test Ua1:

Leads

0.50 <

∅ ≤0.80 mm = 10.0 N

0.80 <

∅ ≤1.25 mm = 20.0 N

Bending strength: Test Ub:

Two 90

°-bends in opposite directions at a weight of 0.25 kg.

Torsional strength: Test Uc: severity 2

The lead is bent by 90

° at a distance of 6 to 6.5 mm from the thermistor body.

The bending radius of the leads should be approx. 0.75 mm. Two torsions of

180

° each (severity 2).

Inrush current limiters

B57237S0***M0**

ICLs

S237

Page 8 of 14

Please read Cautions and warnings and

Important notes at the end of this document.