B57237S220M51 EPCOS Inc, B57237S220M51 Datasheet - Page 2

• Manufacturer Part Number: B57237S220M51
• Description: CURRENT LIMITER INRSH 22 OHM 20%
• Manufacturer: EPCOS Inc
• Type: NTCr
• Series: B57237r

Specifications of B57237S220M51

• Tolerance: ±20%
• Lead Spacing: 0.295" (7.50mm)
• R @ 25°c: 22 Ohm
• Current - Steady State Max: 2.8A
• Diameter: 0.59" (15mm)
• Resistance: 22 Ohms
• Termination Style: Radial
• Operating Temperature Range: - 55 C to + 170 C
• Current Rating: 2.8 Amps
• Dimensions: 15 mm Dia. x 7 mm W x 22 mm H
• Power Rating: 3.1 W
• Thermistor Type: NTC
• Thermistor Tolerance: ± 20%
• Beta Value (k): 3300K
• Thermistor Case Style: Radial Leaded
• No. Of Pins: 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• R @ Current: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: B57237S 220M 51; B57237S0220M051

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
22
33
60
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
1
2.2
2.5
4.7
5
7
25
Switch-mode power supplies
Soft-start motors, e.g. in vacuum cleaners
Useable in series connections
up to 265 V
Coated thermistor disk
Kinked leads of tinned copper wire
Wide resistance range
UL approval (E69802)
I
(0...25 C)
A
9.0
7.0
6.5
5.1
5.0
4.2
3.7
3.0
2.8
2.5
1.6
max
RMS
B
K
2700
2800
2800
2900
2900
3000
3060
3000
3300
3300
4000
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
900
400
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
3600
1600
F
test
Page 2 of 15
1)
Param.
for R(I)
k
0.622
0.806
0.843
1.03
1.05
1.16
1.29
1.49
1.57
1.78
1.77
Dimensional drawing
Dimensions in mm
Approx. weight 2 g
P
T
C
c
th
R
R
max
th
1)
R
/R
Param.
for R(I)
n
R
1.27
1.30
1.30
1.32
1.32
1.33
1.34
1.33
1.37
1.37
1.44
55/170/21
3.1
25
approx. 17
approx. 90
approx. 1530
20
1)
Ordering code
B57237S0109M000
B57237S0229M000
B57237S0259M000
B57237S0479M000
B57237S0509M000
B57237S0709M000
B57237S0100M000
B57237S0150M000
B57237S0220M000
B57237S0330M000
B57237S0600M000
W
%
mW/K
s
mJ/K
B57237
C
S237