C1805 データシートの表示（PDF） - EPCOS AG

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C1805

PTC thermistors for overcurrent protection in telecom applications

EPCOS AG 

Overcurrent protection for telecom

Leaded disks

Reliability data

Test

Electrical endurance,

cycling

Electrical endurance,

constant

Damp heat

Standard

IEC 60738-1

IEC 60738-1

IEC 60738-1

Rapid change

of temperature

Vibration

IEC 60738-1

IEC 60738-1

Shock

Climatic sequence

IEC 60738-1

IEC 60738-1

Test conditions

Room temperature, ISmax; Vmax

Number of cycles: 10

∆R25/R25

< 20%

Storage at Vmax /Top,max (Vmax)

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 = Top,min (0 V), T2 = Top,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

Acceleration: 390 m/s2

Pulse duration: 6 ms; 6 × 4000 pulses

< 5%

Dry heat: T = Top,max (0 V)

Test duration: 16 h

< 10%

Damp heat first cycle

Cold: T = Top,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.

Page 7 of 12

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