B57020M2502A020 EPCOS Inc, B57020M2502A020 Datasheet - Page 3

• Manufacturer Part Number: B57020M2502A020
• Description: Thermistors - NTC M2020/5 K/A20 2% NTC Thermistor
• Manufacturer: EPCOS Inc

Specifications of B57020M2502A020

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Reliability data
Test
Storage in
dry heat
Storage in damp
heat, steady state
Storage in coldness
Rapid temperature
cycling (in air)
Storage in water
Temperature
cycling test
Voltage proof test
Insulation test
Please read Cautions and warnings and
Important notes at the end of this document.
Temperature measurement
Probe assemblies
Standard
IEC
60068-2-2
IEC
60068-2-78
IEC
60068-2-14
Test conditions
Storage at upper
category temperature
T: 80 C
t: 1000 h
Temperature of air: 40 C
Relative humidity of air: 93%
Duration: 56 days
Storage at lower
category temperature
T:
t: 1000 h
Lower test temperature:
Upper test temperature: 80 C
Time to change from lower to
upper temperature: <30 s
Number of cycles: 1000
Medium: air
Temperature of water: 30 C
t: 4000 h
Applied voltage with drop resistor
10 k : 10 V DC switched
between on (t
off (t
Lower test temperature:
Upper test temperature: 10 C
Test frequency <15 min under
wetness and frozen water
Number of cycles: 50000
Medium: air
3750 V AC,
1 min
The sensors are placed in a
vessel containing metallic balls of
1 mm diameter (with total
immersed head). The applied
voltage is 500 V DC.
40 C
off
= 30 min)
Page 3 of 9
on
= 30 min) and
40 C
30 C
(typical)
< 2%
< 2%
< 2%
< 2%
< 2%
< 2%
R
25
/R
25
Remarks
No visible
damage
No visible
damage
No visible
damage
No visible
damage
No visible
damage
No visible
damage
No flashover
Above
1000 M
B57020M2
M2020