NTC thermistors for
temperature measurement
Probe assemblies
Series/Type: B57703M
Date: March 2013
EPCOS AG 2015. 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.Temperature measurement B57703M
Probe assemblies M703
Applications Dimensional drawing
Surface temperature measurement,
e.g. on housings and heat sinks
Features
High accuracy
Easy mounting
Good thermal coupling through metal tag
Thermistor encapsulated in metal-tag case
AWG 30, PTFE-insulated leads of
silver-plated nickel wire or AWG 26
(stranded, 7 x AWG 34), PTFE-insulated
leads of silver-plated copper wire
UL approval (E69802)
Options
Alternative resistance ratings, rated
Dimensions in mm
temperatures, resistance tolerances, lead
Approx. weight 0.8 g
lengths and AWG 28 stranded wires
available on request.
Ordering code Wire length in mm
Delivery mode
Bulk B57703M0103A017 115 10
B57703M0103A018 200 10
B57703M0103A019 500 10
B57703M0103G040 45 3
B57703M0303G040 45 3
B57703M0502G040 45 3
General technical data
Climatic category (IEC 60068-1) 55/125/56
Max. power (at 25 C) P 150 mW
25
Resistance tolerance R /R 2 %
R R
Rated temperature T 25 C
R
1)
Dissipation factor (in air) approx. 3 mW/K
th
1)
Thermal cooling time constant (in air) approx. 50 s
c
1)
Heat capacity C approx. 150 mJ/K
th
Test voltage (t = 1 s) V 1000 V AC
test
1) Depends on mounting situation.
Please read Cautions and warnings and Page 2 of 9
Important notes at the end of this document.