S981 Datasheet, PDF (4/27 Pages) EPCOS – NTC thermistors for temperature measurement

Temperature measurement
Leaded NTC thermistors, lead spacing 2.5 mm
B57981S
S981
Reliability data according to AEC Q200, Rev. D
Test
Standard
Test conditions
High temperature
exposure (storage)
Biased humidity
Operational life
Temperature
cycling
Terminal strength
(leaded)
Mechanical shock
Vibration
MIL-STD-202,
method 108
MIL-STD-202,
method 103
Storage at T = 125 °C
t = 1000 h
T = 85 °C
Relative humidity of air 85%
t = 1000 h
Test voltage max. 0.3 V DC on
NTC¹⁾
MIL-STD-202,
method 108
T = 125 °C
t = 1000 h
Test voltage max. 0.3 V DC on
NTC¹⁾
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 N²⁾
MIL-STD-202, Acceleration: 40 g ²⁾
method 213,
condition C
Pulse duration: 6 ms
Number of bumps: 3, each
direction
MIL-STD-202, Acceleration: 5 g
method 204 t = 20 min
12 cycles in each of 3 directions
Frequency range: 10 to 2000 Hz
∆R₂₅/R₂₅
(typical)
< 2%
<2%
Remarks
No visible
damage
No visible
damage
< 2%
No visible
damage
< 2%
No visible
damage
< 1%
< 1%
No visible
damage
No visible
damage
< 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.
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