Datasheet

1) For details on the capacitance C
test
as well as on the parameters k and n refer to "Application Notes", chapters 2.6 and 2.7.
Applications
Switch-mode power supplies
Features
Useable in series connections up to 265 V
rms
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
B value tolerance ∆B/B ±3 %
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
No. of
R/T char-
acteristic
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
2.5 5.5 1201 2700 200
800
0.621 1.27 B57236S0259M000
3
5.0 1201 2700 300
1200
0.804 1.34 B57236S0309M000
5
4.5 1202 2800 300
1200
0.761 1.30 B57236S0509M000
8
3.5 1203 2900 300
1200
1.11 1.34 B57236S0809M000
10
3.5 1203 2900 300
1200
0.942 1.32 B57236S0100M000
12
3.2 1203 2900 300
1200
1.00 1.32 B57236S0120M000
16
2.9 1207 2965 300
1200
1.08 1.33 B57236S0160M000
20
2.8 1208 3065 300
1200
1.13 1.34 B57236S0200M000
25
2.5 1208 3065 300
1200
1.22 1.34 B57236S0250M000
50
1.9 1209 3165 300
1200
1.44 1.38 B57236S0500M000
80
1.6 1304 3300 400
1600
1.64 1.37 B57236S0800M000
Inrush current limiters B57236
ICLs S236
Page 2 of 6Please read Important notes and
Cautions and warnings at the end of this document.