Datasheet

1) For details on the capacitance C
test
as well as on the parameters k and n refer to "Application notes", chapters 1.6 and 1.7.
Applications
Switch-mode power supplies
Features
Useable in series connections
up to 265 VRMS
Coated thermistor disk
Kinked leads of tinned copper wire
Wide resistance range
UL approval (E69802)
Options
Resistance tolerance <20% and alternative
lead configurations available on request
Delivery mode
Bulk (standard),
cardboard tape, reeled or in Ammo pack
Dimensional drawing
Dimensions in mm
Approx. weight 1 g
General technical data
Climatic category (IEC 60068-1) 55/170/21
Max. power (at 25 °C) P
max
2.1 W
Resistance tolerance ∆R
R
/R
R
±20 %
Rated temperature T
R
25 °C
Dissipation factor (in air) δ
th
approx. 10 mW/K
Thermal cooling time constant (in air) τ
c
approx. 70 s
Heat capacity C
th
approx. 700 mJ/K
Electrical specification and ordering codes
R
25
Ω
I
max
(0...65 °C)
A
B
25/100
K
C
test
1)
230 V
µF
C
test
1)
110 V
µF
Param.
for R(I)
1)
k
Param.
for R(I)
1)
n
Ordering code
2.2 6.0 2700 200 800 0.806 1.30 B57236S0229M000
2.5 5.5 2700 200 800 0.621 1.27 B57236S0259M000
3 5.0 2700 300 1200 0.804 1.34 B57236S0309M000
4.7 4.6 2800 300 1200 0.740 1.30 B57236S0479M000
5 4.5 2800 300 1200 0.761 1.30 B57236S0509M000
8 3.7 2900 300 1200 1.11 1.34 B57236S0809M000
10 3.5 2900 300 1200 0.942 1.32 B57236S0100M000
12 3.2 2900 300 1200 1.00 1.32 B57236S0120M000
16 2.9 2965 300 1200 1.08 1.33 B57236S0160M000
20 2.8 3065 300 1200 1.13 1.34 B57236S0200M000
25 2.5 3065 300 1200 1.22 1.34 B57236S0250M000
50 1.9 3165 300 1200 1.44 1.38 B57236S0500M000
Inrush current limiters B57236
ICLs S236
Page 2 of 15Please read Cautions and warnings and
Important notes at the end of this document.