NTC thermistors for
temperature measurement
Glass-encapsulated sensors,
standard type
Series/Type: B57550G1
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
Features
Glass-encapsulated, heat-resistive and
highly stable
For temperature measurement up to
300 °C
Very short response time
Small dimensions
Leads: dumet wires (copper-clad FeNi)
Options
Leads: nickel-plated dumet wires
Alternative dimensions available on request
Delivery mode
Bulk
Dimensional drawing
Dimensions in mm
Approx. weight 40 mg
General technical data
Climatic category (IEC 60068-1) 55/300/56
Max. power (at 25 °C) P
25
32 mW
Resistance tolerance R
R
/R
R
±2, ±3 %
Rated temperature T
R
25 °C
Dissipation factor (in air) δ
th
approx. 0.75 mW/K
Thermal cooling time constant (in air) τ
c
approx. 6 s
Heat capacity C
th
approx. 4.5 mJ/K
Temperature measurement B57550G1
Glass-encapsulated sensors G1550
Page 2 of 26Please read Cautions and warnings and
Important notes at the end of this document.
Electrical specification and ordering codes
R
25
No. of R/T
characteristic
B
25/85
K
B
0/100
K
B
25/100
K
Ordering code
+ = Resistance tolerance
G = ±2%
H = ±3%
2 k 8320 3406 3379 3420 ±1% B57550G1202+000
2.5 k 7006 3546 3517 3560 ±1% B57550G1252+000
5 k 8326 3483 3456 3497 ±1% B57550G1502+000
10 k 8307 3478 3450 3492 ±1% B57550G1103+000
10 k 7003 3612 3586 3625 ±1% B57550G1103+005
20 k 8332 3993 3965 4006 ±1% B57550G1203+000
30 k 8344 3992 3965 4006 ±1% B57550G1303+000
50 k 8344 3992 3965 4006 ±1% B57550G1503+000
100 k 8304 4072 4036 4092 ±1% B57550G1104+000
230 k 8350 4240 4198 4264 ±1% B57550G1234+000
Note
For ordering code B57550G1202+000 and B57550G1252+000 the R/T curve is defined for short
wire length (5 mm). In dependence of the real wire length of the glass-encapsulated sensor the
wire resistance can be considered for temperatures higher than 100 °C additionally with following
equation:
Temperature measurement B57550G1
Glass-encapsulated sensors G1550
Page 3 of 26Please read Cautions and warnings and
Important notes at the end of this document.

B57550G1104H000

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
NTC Thermistors G550/ 100 K/ 3% NTC Thermistor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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