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B57504K0103A009

P1-P3P4-P6P7-P9P10-P11
NTC thermistors for
temperature measurement
Probe assemblies
Series/Type: B57504K
Date: January 2018
© EPCOS AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Applications
Temperature measurement in household
appliances (e.g. dryers, dish washers, small
appliances)
Features
NTC thermistor potted in a medium-resistant
stainless steel case
Short thermal response time in water
Wire heat-resistant up to 125 °C
(XLPE-insulated wire)
Options
Alternative casing, cable lengths, cable
material (PTFE), R/T characteristics and
connectors available on request.
Delivery mode
Bulk
Dimensional drawing
Dimensions in mm
Approx. weight 2.3 g
General technical data
Climatic category (IEC 60068-1) 20/125/42
Upper category temperature (wire) 125 °C
Maximum operating temperature (sensor head) T
op,max
150 °C
Resistance tolerance ∆R
R
/R
R
±2 %
Rated temperature T
R
70 °C
Dissipation factor (in air) δ
th
approx. 2 mW/K
Thermal time constant (in water) τ
a
< 2 s
Insulation resistance (V = 500 V DC) R
ins
> 100 MΩ
Test voltage (t = 1 s) V
test
1250 V AC
Electrical specification and ordering codes
R
70
Ω
R
25
Ω
No. of R/T
characteristic
B
25/100
K
Ordering code
2055 10000 7003 3625 ±0.8% B57504K0103A009
Temperature measurement B57504K
Probe assemblies K504
Page 2 of 11Please read Cautions and warnings and
Important notes at the end of this document.
Reliability data
Test Standard Test conditions ∆R
25
/R
25
(typical)
Remarks
Storage in
dry heat
IEC
60068-2-2
Storage at max. operating temperature
T: 150 °C
t: 168 h
Medium: air
< 3% No visible
damage
Storage in
coldness
Storage at lower category temperature
T: 20 °C
t: 1000 h
Medium: air
< 3% No visible
damage
Storage in damp
heat, steady state
Temperature of air: 60 °C
Relative humidity of air: 93%
Duration: 1000 h
< 3% No visible
damage
Rapid
temperature
cycling (in water)
Lower test temperature: 15 °C
Upper test temperature: 96 °C
Dwell time: 30 s
Time to change from lower to upper
temperature: <10 s
Number of cycles: 1000
Medium: water
< 3% No visible
damage
Vibration
resistance
IEC
60068-2-6
Frequency range: 10 to 2000 Hz
Amplitude: 1.5 mm, 10 g
Linear sweep; X, Y and Z direction
Duration: 3 × 2 h
< 3% No visible
damage
Natural falling
test
Drop sensor 3 times from a height of
75 cm spontaneously onto hard
surface
< 3% No visible
damage
Boiling test Storage at 96 °C in water for 6 h, then
natural cooling for 16 h
< 3% No visible
damage
Note
Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be
ensured that no water enters the NTC thermistors (e.g. through plug terminals).
Avoid dewing and condensation unless thermistor is specified for these conditions.
Temperature measurement B57504K
Probe assemblies K504
Page 3 of 11Please read Cautions and warnings and
Important notes at the end of this document.
P1-P3P4-P6P7-P9P10-P11

B57504K0103A009

Mfr. #:
Buy B57504K0103A009
Manufacturer:
EPCOS / TDK
Description:
Thermistors - NTC K504/10k/A9 2% NTC Therm Databook
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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