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B57220K Datasheet(PDF) 2 Page - EPCOS

Part # B57220K
Description  NTC thermistors for temperature measurement
PDF  12 Pages
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Manufacturer  EPCOS [EPCOS]
Direct Link  http://www.epcos.com
Logo EPCOS - EPCOS

B57220K Datasheet(HTML) 2 Page - EPCOS

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1) Depends on mounting situation
Applications
Temperature measurement and
compensation
Features
Front surfaces silver-plated
For clamp contacting
UL approval (E69802)
Options
Alternative resistance ratings, rated
temperatures and resistance tolerances
available on request.
Delivery mode
Bulk
Dimensional drawing
∅d = 2.9 ±0.3 mm
th = 1.3
±0.3 mm
Approx. weight 50 mg
General technical data
Climatic category
(IEC 60068-1)
55/250/21
Max. power
(at 25
°C)
P25
180
mW
Resistance tolerance
∆R
R/RR
±5
%
Rated temperature
TR
20
°C
Dissipation factor
(in air)
δ
th
1)
approx. 2.5
mW/K
Thermal cooling time constant
(in air)
τ
c
1)
approx. 12
s
Heat capacity
Cth1)
approx. 30
mJ/K
Electrical specification and ordering codes
R20
Ω
R25
Ω
No. of R/T
characteristic
B25/100
K
Ordering code
2.5 k
2056.9
1008
3560
±1.5%
B57220K0212A003
Temperature measurement and compensation
B57220K
Leadless NTCs
K220
Page 2 of 12
Please read Cautions and warnings and
Important notes at the end of this document.



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