30V datasheet(3/3 Pages) LEIDITECH

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术语说明

IH=HOLD CURRENT: MAXIMUM CURRENT AT WHICH THE DEVICE WILL NOT TRIP AT 25℃ STILL AIR.

IH：保持电流―――25℃静态空气环境中PPTC不工作的最高电流

IT=TRIP CURRENT: MINIMUM CURRENT AT WHICH THE DEVICE WILL ALWAYS TRIP AT 25℃ STILL AIR.

IT：触发电流―――25℃空气环境中PPTC动作所需的最小电流

TTRIP=MAXIMUM TIME TO TRIP(S) AT ASSIGNED CURRENT.

TTRIP：动作时间――－25℃空气环境5倍IH时最大动作时间

VMAX=MAXIMUM VOLTAGE DEVICE CAN WITHSTAND WITHOUT DAMAGE AT RATED CURRENT.

VMAX：最大工作电压―――PPTC的最大工作电压

IMAX=MAXIMUM FAULT CURRENT DEVICE CAN WITHSTAND WITHOUT DAMAGE AT RATED VOLTAGE.

IMAX：PPTC最大承受电流

RMIN=MINIMUM DEVICE RESISTANCE AT 25℃ PRIOR TO TRIPPING.

RMIN：最小电阻―――25℃环境温度下PPTC最小零功率阻值

RMAX=MAXIMUM DEVICE RESISTANCE AT 25℃ PRIOR TO TRIPPING.

RMAX：最大电阻―――25℃环境温度下 PPTC 最大零功率阻值

F. Thermal Derating Chart (A)

G. Test Procedures and Requirements

测试条件

Test 测试项目

Test Conditions 测试条件

Accept/Reject Criteria判定标准

Resistance

In still air @ 25℃

Rmin≤R≤R1max

Time to Trip

Vmax, 25℃

, In still air @ 25℃

T≤max. time to trip(seconds)

Hold Current

30 min. at IH

, In still air @ 25℃

No trip

Trip Cycle Life

Vmax, Imax, 100 cycles

, In still air

@ 25℃

No arcing or burning

Trip Endurance

Vmax, 1 hours

, In still air @ 25℃

No arcing or burning

Series

30V

Shanghai Leiditech Electronic Co.,Ltd

Email: sale1@leiditech.com

Tel : +86- 021 50828806

Fax : +86- 021 50477059

Rev :

www.leiditech.com

01.06.2015

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