1) For details on the capacitance C
test
please refer to "Application notes", chapter 1.6.
Applications
Inrush current limiting, e.g. in switch-mode power
supplies, soft-start motors
Features
Leaded and coated NTC thermistors
Tinned copper wire, kinked
Coating material flame retardant to UL 94 V-0
Component marking includes the manufacturer's
logo, resistance value and date code
Highly stable electrical characteristics
Approvals
UL 1434 (file number E69802)
Options
Resistance tolerance <20% and alternative lead
configurations available on request
Delivery mode
Bulk
Dimensional drawing
Dimensions in mm
Approx. weight 10 g
General technical data
Climatic category (IEC 60068-1) 55/170/21
Max. power (at 25 °C) P
max
10.0 W
Resistance tolerance ∆R
R
/R
R
±20 %
Rated temperature T
R
25 °C
Dissipation factor (in air) δ
th
approx. 50 mW/K
Thermal cooling time constant (in air) τ
c
approx. 200 s
Heat capacity C
th
approx. 10000 mJ/K
Electrical specification and ordering codes
R
25
Ω
I
test
A
I
max
(0 ...
25 °C)
A
C
test
1)
280 V AC
µF
C
test
1)
240 V AC
µF
C
test
1)
120 V AC
µF
Maximum
energy
J
R
min
(@ I
test
,
25 °C)
Ω
Ordering code
0.5 30 24 1300 3500 16000 200 0.011 B57127P0508M301
1 30 22 1300 3500 16000 200 0.013 B57127P0109M301
2 23 16 1300 3500 16000 200 0.022 B57127P0209M301
5 20 12 1300 3500 16000 200 0.033 B57127P0509M301
7 17 11 1300 3500 16000 200 0.045 B57127P0709M301
10 15 9 1300 3500 16000 200 0.058 B57127P0100M301
Inrush current limiters B57127P0***M301
ICLs P27
Page 2 of 19Please read Cautions and warnings and
Important notes at the end of this document.