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PPTC自恢復(fù)保險(xiǎn)絲 PPTC自恢復(fù)保險(xiǎn)絲廠(chǎng)家直銷(xiāo) 雷卯供
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PPTC自恢復(fù)保險(xiǎn)絲 PPTC自恢復(fù)保險(xiǎn)絲廠(chǎng)家直銷(xiāo) 雷卯供
自恢復(fù)保險(xiǎn)絲, 簡(jiǎn)稱(chēng)PPTC。是一種正溫度系數(shù)聚合物熱敏電阻,作過(guò)流保護(hù)用,可代替電流保險(xiǎn)絲。電路正常工作時(shí)它的阻值很?。▔航岛苄。?,當(dāng)電路出現(xiàn)過(guò)流使它溫度升高時(shí),阻值急劇增大幾個(gè)數(shù)量級(jí),使電路中的電流減小到安全值以下,從而使后面的電路得到保護(hù),過(guò)流消失后自動(dòng)恢復(fù)為低阻值。其效果與開(kāi)關(guān)組件類(lèi)似,只是響應(yīng)速度較慢。
PPTC的選用技巧:
1.確定以下的電路運(yùn)行參數(shù):
正常工作電流 - IHOLD
電路電壓相當(dāng)大值 - VMAX
相當(dāng)大中斷電流 - IMAX
工作環(huán)境溫度
2. 選擇合適的封裝形式:貼片PTC或者插件PTC。
3. 比較的VMAX和IMAX的PTC數(shù)據(jù)表中的評(píng)級(jí),以確保電路參數(shù)不超過(guò)這些額定值。
4. 驗(yàn)證PTC的運(yùn)行環(huán)境溫度為它的正常工作范圍內(nèi)。確定Ihold和IMAX的溫度曲線(xiàn)。
上海雷卯電子科技有限公司,品牌LEIDITECH, 過(guò)壓過(guò)流保護(hù)元件專(zhuān)業(yè)供應(yīng)商,PPTC貼片封裝SMD0603系列,SMD0805系列,SMD1206系列,SMD1210系列,SMD1812系列,SMD2018系列,SMD2920系列,插件封裝有HL06系列,HL16系列,HL30系列,HL60系列,HL250系列,HL600系列。
PPTC可供應(yīng)型號(hào),請(qǐng)登錄雷卯官網(wǎng)具體查詢(xún)。
SMD0603P004TF
SMD0603P005TF
SMD0603P010TF
SMD0603P020TF
SMD0603P020TF/16
SMD0603P025TF
SMD0603P025TF/16
SMD0603P035TF
SMD0603P050TF
SMD0603P050TF/12
SMD0603P075TF
SMD0603P100TF
TSML100
TSML200
SMD0805P010TF
SMD0805P020TF
SMD0805P035TF
SMD0805P050TF
SMD0805P075TF
SMD0805P100TF
SMD0805P110TF
ISML110
ISML200
PSMD100
SMD1206P005TF
SMD1206P010TF
SMD1206P012TF
SMD1206P016TF
SMD1206P020TF
SMD1206P020TF/30
SMD1206P025TF
SMD1206P035TF
SMD1206P050TF
SMD1206P050TF/13.2
SMD1206P050TF/8
SMD1206P075TF
SMD1206P075TF/13.2
SMD1206P100TF
SMD1206P100/16
SMD1206P110TF
SMD1206P150TF
SMD1206P175TF
SMD1206P200TF
SMD1210P005TF
SMD1210P010TF
SMD1210P020TF
SMD1210P035TF
SMD1210P050TF
SMD1210P075TF
SMD1210P110TF
SMD1210P150TF
SMD1812P010TF
SMD1812P014TF
SMD1812P020TF
SMD1812P030TF
SMD1812P050TF
SMD1812P050TF/30
SMD1812P075TF
SMD1812P075TF/24
SMD1812P075TF/33
SMD1812P100TF/16
SMD1812P110TF/8
SMD1812P110TF/16
SMD1812P110TF/24
SMD1812P110TF/33
SMD1812P125TF/16
SMD1812P125TF
SMD1812P150TF
SMD1812P150TF/12
SMD1812P150TF/24
SMD1812P160TF
SMD1812P200TF
SMD1812P200TF/16
SMD1812P260TF
SMD1812P260TF/12
SMD1812P300TF
SMD1812P350TF
MSM150/6
MSM150/16
SM150/33
MSM014
SMD1812-010
SMD1812-014
SMD1812-020
SMD1812-030
SMD1812-050
SMD1812-075
SMD1812-110
SMD1812-110/16
SMD1812-125
SMD1812-150
SMD1812-150/24
SMD1812-160
SMD1812-200
SMD1812-200-12V
SMD1812-200-24V
SMD1812-250
SMD1812-260
SMD1812-260/12V
SMD1812-260/24V
SMD1812-300/16V
SMD1812-350
SMD2018P030TF
SMD2018P050TF
SMD2018P100TF
SMD2018P100TF/33
SMD2018P150TF
SMD20180200TF
SMD2920P030TF
SMD2920P050TF
SMD2920P075TF
SMD2920P075TF/60
SMD2920P100TF
SMD2920P100TF/60
SMD2920P125TF
SMD2920P150TF
SMD2920P185TF
SMD2920P200TF
SMD2920P200TF/24
SMD2920P250TF
SMD2920P260TF
SMD2920P300TF
SMD2920P300TF/15
SMD2920P300TF24
HL06-075
HL06-090
HL06-110
HL06-120
HL06-135
HL06-160
HL06-185
HL06-250
HL16-250
HL16-300
HL16-400
HL16-500
HL16-600
HL16-700
HL16-800
HL16-900
HL16-1000
HL16-1100
HL16-1200
HL16-1400
HL30-090
HL30-110
HL30-135
HL30-160
HL30-185
HL30-250
HL30-300
HL30-400
HL30-500
HL30-600
HL30-700
HL30-800
HL30-900
HL60-010
HL60-017
HL60-020
HL60-025
HL60-030
HL60-040
HL60-050
HL60-065
HL60-075
HL60-090
HL60-110
HL60-135
HL60-160
HL60-185
HL60-250
HL60-300
HL60-375
HL250-030
HL250-040
HL250-060
HL250-080
HL250-090
HL250-110
HL250-120
HL250-145
HL250-180
HL250-200
HL250-400
HL250-600
HL250-800
HL600-150
HL600-160
HL90-250
HL75-250F
HP75-160F
HL90-185
上海雷卯電子科技有限公司
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