B59550T1120A262
Inrush current limiters B57237S0***M0**
ICLs S237
Applications
Switch-mode power supplies
Soft-start motors, e.g. in vacuum cleaners
Features
Useable in series connections
up to 265 V
RMS
Coated thermistor disk
Kinked leads of tinned copper wire
Wide resistance range
Manufacturer's logo, NTC and resistance value
stamped on
UL approval (E69802)
Options
Resistance tolerance <20% and alternative lead
configurations available on request
Delivery mode
Bulk (standard) or with cardboard tape on 500-mm reel
General technical data
Climatic category (IEC 60068-1) 55/170/21
Max. power (at 25 °C) P
1) For details on the capacitance C
test
please refer to "Application notes", chapter 1.6.
max
Dimensional drawing
Dimensions in mm
Approx. weight 2 g
3.1 W
Resistance tolerance ∆R
±20 %
Rated temperature T
R
R
/R
R
25 °C
Dissipation factor (in air) δ
approx. 17 mW/K
Thermal cooling time constant (in air) τ
th
approx. 90 s
Heat capacity C
Electrical specification and ordering codes
R
Ω
25
I
max
(0...25 °C)
A
** = Delivery mode
00 = Bulk
51 = Reel packing
C
test
1)
230 V AC
µF
C
test
1)
110 V AC
µF
c
th
R
min
(@ I
max
approx. 1530 mJ/K
, 25 °C)
Ω
Ordering code
1 9.0 700 2800 0.038 B57237S0109M0**
2.2 7.0 700 2800 0.064 B57237S0229M0**
2.5 6.5 700 2800 0.074 B57237S0259M0**
4.7 5.1 700 2800 0.120 B57237S0479M0**
5 5.0 700 2800 0.125 B57237S0509M0**
7 4.2 700 2800 0.172 B57237S0709M0**
