NTC thermistors for
temperature measurement
Glass-encapsulated sensors,
standard type
Series/Type:
Date:
B57550G1
August 2014
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Temperature measurement
Glass-encapsulated sensors
B57550G1
G1550
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
General technical data
Climatic category
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
(IEC 60068-1)
(at 25
°C)
Dimensional drawing
Dimensions in mm
Approx. weight 40 mg
(in air)
(in air)
P
25
∆R
R
/R
R
T
R
δ
th
τ
c
C
th
55/300/56
32
±1, ±2, ±3
25
approx. 0.75
approx. 7
approx. 5
mW
%
°C
mW/K
s
mJ/K
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 22
Temperature measurement
Glass-encapsulated sensors
B57550G1
G1550
Electrical specification and ordering codes
R
25
Ω
5k
10 k
10 k
100 k
No. of R/T
characteristic
8326
7003
8307
8304
B
25/85
K
3483
3612
3478
4072
B
0/100
K
3456
3586
3450
4036
B
25/100
K
3497
±1%
3625
±1%
3492
±1%
4092
±1%
Ordering code
B57550G1502+000
B57550G1103+005
B57550G1103+000
B57550G1104+000
+ = Resistance tolerance
F =
±1%
G =
±2%
H =
±3%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 22
Temperature measurement
Glass-encapsulated sensors
B57550G1
G1550
Reliability data
Test
Storage in
dry heat
Standard
IEC
60068-2-2
Test conditions
∆R
25
/R
25
(typical)
< 3%
Remarks
No visible
damage
Storage in damp
heat, steady state
Rapid temperature
cycling
Storage at upper
category temperature
T: 300
°C
t: 1000 h
IEC
Temperature of air: 85
°C
60068-2-67 Relative humidity of air: 85%
Duration: 1000 h
IEC
Lower test temperature: 55
°C
60068-2-14 Upper test temperature: 200
°C
Number of cycles: 1000
< 2%
No visible
damage
No visible
damage
< 2%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 22
Temperature measurement
Glass-encapsulated sensors
B57550G1
G1550
Reliability data according to AEC Q200, Rev. D
Test
High temperature
exposure (storage)
Operational life
Standard
MIL-STD-202,
method 108
MIL-STD-202,
method 108
Test conditions
∆R
25
/R
25
(typical)
< 2%
< 2%
Remarks
No visible
damage
No visible
damage
No visible
damage
Temperature
cycling
Terminal strength
(leaded)
Mechanical shock
Storage at T = +125
°C
t = 1000 h
1000 h / +125
°C
Test voltage max. 0.3 V DC on
NTC
1)
JESD 22,
Lower test temperature: 55
°C
method JA-104 Upper test temperature: 125
°C
1000 cycles
Dwell time: max. 30 min at each
temperature
Transition time in air: max. 1 min
MIL-STD-202, Test leaded device integrity
method 211
Condition A: 2.27 N
2)
MIL-STD-202,
method 213,
condition C
MIL-STD-202,
method 204
Acceleration: 40
g
2)
Pulse duration: 6 ms
Number of bumps: 3, each
direction
Acceleration: 5
g
t = 20 min
12 cycles in each of 3 directions
Frequency range: 10 to 2000 Hz
< 2%
< 1%
< 1%
No visible
damage
No visible
damage
Vibration
< 1%
No visible
damage
1) Self heating of the NTC thermistor must not exceed 0.2 K, steady state. Test conditions deviating from AEC Q200, Rev. D.
2) Deviating from AEC Q200, Rev. D.
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.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 22
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