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B57237S259M53

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
Types of packing
Reel packing
Reel dimensions (in mm)
Reel type Series pcs. per reel d f n w
I S153, S235 1500 360 max. 31 ±1 approx. 45 54 max.
I S236 1000 360 max. 31 ±1 approx. 45 54 max.
II P11, P13 1500 500 max. 23 ±1 approx. 59 72 max.
II S237, S238, S364 1000 500 max. 23 ±1 approx. 59 72 max.
Ammo packing
Ammo
type
Series pcs. per
package
x y z
I S153,
S235,
S236
1000 45 335 272
II P11,
P13,
S237,
S238,
S364
750 55 340 340
Ammo packing dimensions (in mm)
Bulk packing
The components are packed in cardboard boxes, the size of which depends on the order quantity.
Series S464 and P27 is only available as bulk.
Inrush current limiters B57237S0***M0**
ICLs S237
Page 13 of 21Please read Cautions and warnings and
Important notes at the end of this document.
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 Iron soldering
Bath temperature max. 260 °C max. 360 °C
Soldering time max. 4 s max. 2 s
Distance from thermistor min. 6 mm min. 6 mm
Under more severe soldering conditions the resistance may change.
Solderability (test to IEC 60068-2-20)
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Wetting of soldering areas ≥95%.
Solder Bath temperature (°C) Dwell time (s)
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9) 245 ±3 3
1.1.1 Resistance to soldering heat (test to IEC 60068-2-20)
Preconditioning: Immersion into flux F-SW 32.
Solder Bath temperature (°C) Dwell time (s)
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9) 260 5 10
Inrush current limiters B57237S0***M0**
ICLs S237
Page 14 of 21Please read Cautions and warnings and
Important notes at the end of this document.
1.1.2 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 15 of 21Please read Cautions and warnings and
Important notes at the end of this document.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

B57237S259M53

Mfr. #:
Buy B57237S259M53
Manufacturer:
EPCOS / TDK
Description:
Inrush Current Limiters NTC Thermistor S 237/2.5 /M 53
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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