SCK datasheet(19/22 Pages) THINKING

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NTC Thermistor：SCK Series

Power Thermistor for Limiting Inrush Current

THINKING ELECTRONIC INDUSTRIAL CO., LTD.

www.thinking.com.tw

2018.05

All specifications are subject to change without notice.

 Reliability

Item

Standard

Test conditions / Methods

Specifications

Tensile Strength

of Terminals

IEC 60068-2-21

Gradually apply the specified force and keep the unit fixed for 10±1

sec.

Terminal diameter

Force

(mm)

(Kg)

0.5<d≦0.80

1.0

0.8<d≦1.25

2.0

∣

△ R25/R25∣≦ 10 %

Solderability

IEC 60068-2-20

245 ±3℃, 3 ± 0.3 sec

At least 95% of terminal

electrode is covered by

new solder

Resistance to

Soldering Heat

IEC 60068-2-20

260 ± 3℃, 10 ± 1 sec

No visible damage

∣

△ R25/R25∣≦ 10 %

High Temperature

Storage

IEC 60068-2-2

Tu ± 5 ℃ , 1000± 24 hrs

No visible damage

∣

△ R25/R25∣≦ 20 %

Damp Heat,

Steady State

IEC 60068-2-78

40 ± 2℃, 90~95% RH, 1000 ± 24 hrs

No visible damage

∣

△ R25/R25∣≦ 20 %

Rapid Change of

Temperature

IEC 60068-2-14

The conditions shown below shall be repeated 5 cycles.

Step

Temperature (℃)

Period (minutes)

TL ± 5

30 ± 3

Room temperature

5 ± 3

TU ± 5

30 ± 3

Room temperature

5 ± 3

No visible damage

∣

△ R25/R25∣≦ 20 %

Max. Current

IEC 60539-1

4.26.1

25 ± 5℃, Imax. , 1000± 24 hrs

No visible damage

∣

△ R25/R25∣≦ 20 %

Endurance

Specification

Standard

25 ± 5℃, Imax. , Cth, 1min ON / 5 mins OFF x 1000 cycles

Cth= Capacitance at 240 Vac

No visible damage

∣

△ R25/R25∣≦ 20 %

Insulation Test

MIL-STD-202F

-Method 302

1000 VDC , 1 min

≧

500 MΩ

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