B57238S 509M EPCOS Inc, B57238S 509M Datasheet - Page 2

• Manufacturer Part Number: B57238S 509M
• Description: NTC Thermistor
• Manufacturer: EPCOS Inc

Specifications of B57238S 509M

• Thermistor Type: NTC
• Resistance: 5ohm
• Thermistor Tolerance: ± 20%
• Beta Value (k): 2965
• Operating Temperature Range: -55°C To +170°C
• Operating Voltage Range: 265V
• Thermistor Case Style: Radial Lead
• No. Of Pins: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Applications
Features
Options
Resistance tolerance <20% and alternative
lead configurations available on request
Delivery mode
Bulk (standard),
cardboard tape, reeled or in Ammo pack
General technical data
Climatic category
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
Electrical specification and ordering codes
R
10
15
16
1) For details on the capacitance C
Please read Cautions and warnings and
Important notes at the end of this document.
Inrush current limiters
ICLs
2.5
3
4.7
5
7
8
25
Switch-mode power supplies
Soft-start motors, e.g. in vacuum cleaners
Useable in series connections
up to 265 V
Coated thermistor disk for line applications
Kinked leads of tinned copper wire
Wide resistance range
UL approval (E69802)
I
(0...65 C)
A
8.4
7.4
6.6
6.4
6.0
5.5
5.0
4.4
4.0
max
RMS
B
K
2800
2900
2965
2965
2965
3065
3065
3165
3165
25/100
test
as well as on the parameters k and n refer to "Application notes", chapters 1.6 and 1.7.
C
230 V
700
700
700
700
700
700
700
700
700
F
(IEC 60068-1)
(at 25 C)
(in air)
(in air)
test
1)
C
110 V
2800
2800
2800
2800
2800
2800
2800
2800
2800
F
test
Page 2 of 15
1)
Param.
for R(I)
k
0.984
1.04
1.20
1.23
1.34
1.40
1.50
1.67
1.69
Dimensional drawing
Dimensions in mm
Approx. weight 3 g
P
T
C
c
th
R
R
max
th
1)
R
/R
Param.
for R(I)
n
R
1.36
1.36
1.37
1.37
1.38
1.39
1.39
1.40
1.39
55/170/21
3.9
25
approx. 20
approx. 80
approx. 1600
20
1)
Ordering code
B57238S0259M000
B57238S0309M000
B57238S0479M000
B57238S0509M000
B57238S0709M000
B57238S0809M000
B57238S0100M000
B57238S0150M000
B57238S0160M000
W
%
mW/K
s
mJ/K
B57238
C
S238