B5910 Datasheet, PDF (3/10 Pages) EPCOS – PTC thermistors as inrush current limiters

Inrush current limiters
PTC thermistors in phenolic resin plastic case
Reliability data
Test
Electrical endurance,
cycling
Standard
Electrical endurance,
constant
Damp heat
IEC 60738-1
IEC 60738-1
Rapid change
of temperature
Vibration
IEC 60738-1
IEC 60738-1
Climatic sequence
IEC 60738-1
Test conditions
Room temperature, V_link,max
applied energy < C_th  (T_ref  T_A)
Number of cycles: 100 000
∆R₂₅/R₂₅
< 25%
Storage at V_max /T_op,max (V_max)
Test duration: 1000 h
< 25%
Temperature of air: 40 °C
Relative humidity of air: 93%
< 10%
Duration: 56 days
Test according to IEC 60068-2-78
T₁ = T_op,min (0 V), T₂ = T_op,max (0 V)
Number of cycles: 5
< 10%
Test duration: 30 min
Test according to IEC 60068-2-14, Test Na
Frequency range: 10 to 55 Hz
< 5%
Displacement amplitude: 0.75 mm
Test duration: 3 × 2 h
Test according to IEC 60068-2-6, Test Fc
Dry heat: T = T_op,max (0 V)
Test duration: 16 h
< 10%
Damp heat first cycle
Cold: T = T_op,min (0 V)
Test duration: 2 h
Damp heat 5 cycles
Tests performed according to
IEC 60068-2-30
Please read Cautions and warnings and
Important notes at the end of this document.
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