B57235S809M EPCOS Inc, B57235S809M Datasheet - Page 8
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B57235S809M
Manufacturer Part Number
B57235S809M
Description
Thermistors - NTC 8 Ohms 3.5amps 2900k
Manufacturer
EPCOS Inc
Type
NTCr
Series
B57235r
Datasheet
1.B57235S0609M000.pdf
(15 pages)
Specifications of B57235S809M
Resistance
8 Ohms
Tolerance
20 %
Termination Style
Radial
Operating Temperature Range
- 55 C to + 170 C
Current Rating
3.5 Amps
Dimensions
9.5 mm Dia. x 6 mm W x 14 mm H
Lead Spacing
5 mm
Power Rating
1.8 W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Mounting instructions
1
1.1
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:
Bath temperature
Soldering time
Distance from thermistor
Under more severe soldering conditions the resistance may change.
Solderability (test to IEC 60068-2-58)
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Wetting of soldering areas 95%.
Solder
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)
1.1.1
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Leaching of side edges 1/3.
Solder
SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)
Please read Cautions and warnings and
Important notes at the end of this document.
Inrush current limiters
ICLs
Soldering
Leaded NTC thermistors
Resistance to soldering heat (test to IEC 60068-2-58)
Dip soldering
max. 260 C
max. 4 s
min. 6 mm
Page 8 of 15
Bath temperature ( C)
245 3
Bath temperature ( C)
260
Iron soldering
max. 360 C
max. 2 s
min. 6 mm
5
Dwell time (s)
3
Dwell time (s)
10
B57235
S235