B57153 データシートの表示（PDF） - EPCOS AG

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B57153

NTC thermistors for inrush current limiting

EPCOS AG 

Inrush current limiters

ICLs

Wave soldering

Temperature characteristic at component terminal with dual wave soldering

B57153

S153

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).

Please read Cautions and warnings and

Important notes at the end of this document.

Page 9 of 15

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