貼片自恢復(fù)保險(xiǎn)絲

1、貼片自恢復(fù)保險(xiǎn)絲自恢復(fù)保險(xiǎn)絲可分為貼片自恢復(fù)保險(xiǎn)絲同插件自恢復(fù)保險(xiǎn)絲，隨著產(chǎn)品要求的越來越小型化，貼片保險(xiǎn)絲的使用范圍已越來越廣泛。貼片自恢復(fù)保險(xiǎn)絲主要封裝有：0805、0603、1206、1812、2920，其工作原理為：自恢復(fù)保險(xiǎn)絲是由經(jīng)過特殊處理的聚合樹脂(Polymer)及分布在里面的導(dǎo)電粒子(CarbonBlack)組成。在正常操作下聚合樹脂緊密地將導(dǎo)電粒子束縛在結(jié)晶狀的結(jié)構(gòu)外，構(gòu)成鏈狀導(dǎo)電電通路，此時(shí)的可恢復(fù)保險(xiǎn)絲為低阻狀態(tài)

2、(a)，線路上流經(jīng)自恢復(fù)保險(xiǎn)絲的電流所產(chǎn)生的熱能小，不會(huì)改變晶體結(jié)構(gòu)。當(dāng)線路發(fā)生短路或過載時(shí)，流經(jīng)自恢復(fù)保險(xiǎn)絲的大電流產(chǎn)生的熱量使聚合樹脂融化，體積迅速增長(zhǎng)，形成高阻狀態(tài)(b)，工作電流迅速減小，從而對(duì)電路進(jìn)行限制和保護(hù)。當(dāng)故障排除后，PTC可恢復(fù)保險(xiǎn)絲重新冷卻結(jié)晶，體積收縮，導(dǎo)電粒子重新形成導(dǎo)電通路，自恢復(fù)保險(xiǎn)絲恢復(fù)為低阻狀態(tài)，從而完成對(duì)電路的保護(hù)，無須人工更換。應(yīng)用范圍通迅設(shè)備：程控交換機(jī)、用戶終端設(shè)備、總配線保安單元等。汽車電子：

3、汽車線束、汽車防盜器、汽車微電機(jī)、汽車電子產(chǎn)品等。電子行業(yè)：電源鎮(zhèn)流器、微電機(jī)、火災(zāi)報(bào)警、儀器儀表等。電器設(shè)備：衛(wèi)星接收機(jī)、安防設(shè)備、揚(yáng)聲器、工業(yè)自動(dòng)控制等?！?805貼片自恢復(fù)保險(xiǎn)絲電氣特性(23℃)IhItTripTimeVmaxImaxPdmaxResistanceModel型號(hào)AAASVAWRmin(W)Rtyp(W)Rmax(W)0805010150.100.300.51.5015.01000.51.0003.5006.000

4、080502090.200.508.00.029.01000.50.6502.0003.500080503560.350.758.00.106.01000.500.2500.7501.200080505060.501.008.00.106.01000.500.1500.5000.850080507560.751.508.00.206.0400.600.0900.2000.385080510061.001.958.00.306.0400.

5、600.0600.1200.260●0805點(diǎn)擊察看保護(hù)電流時(shí)間(IT)曲線圖●0805SMD自恢復(fù)保險(xiǎn)絲外形尺寸ABCDModel型號(hào)MinMaxMinMaxMinMaxMin0805010152.002.201.201.500.501.000.20080502092.002.201.201.500.451.000.20080503562.002.201.201.500.451.000.20080505062.002.201.201.

6、500.400.750.20080507562.002.201.201.500.651.250.20080510062.002.201.201.500.801.800.20●1206貼片自恢復(fù)保險(xiǎn)絲電氣特性(23℃)IhItTripTimeVmaxImaxPdmaxResistanceModel型號(hào)AAASVAWRmin(W)Rtyp(W)Rmax(W)1206005600.050.100.251.5060.01000.43.60012

7、.0050.001206010600.100.250.51.0060.01000.41.6006.00015.0001210005600.050.150.251.5060.0100.63.60025.00050.0001210010600.100.300.51.5060.0100.61.6007.00015.0001210020300.200.408.00.0230.0100.60.8002.9005.000121003560.350.

8、708.00.206.0400.60.3200.8101.300121005013.20.501.008.00.1013.2400.60.2500.5500.900121007560.751.508.00.106.0400.60.1300.2900.400121011061.102.208.00.306.0400.60.0600.1400.210121015061.503.008.00.506.0400.80.0400.0700.110

9、121017561.753.508.00.806.0400.80.0250.0500.08121020062.004.008.02.506.01000.80.0200.0400.060●1210點(diǎn)擊察看保護(hù)電流時(shí)間(IT)曲線圖●1210SMD自恢復(fù)保險(xiǎn)絲外形尺寸ABCDModel型號(hào)MinMaxMinMaxMinMaxMin1210005603.003.432.352.800.751.250.251210010603.003.432.

10、352.800.751.250.251210020303.003.432.352.800.601.000.25121003563.003.432.352.800.500.850.25121005013.23.003.432.352.800.500.850.25121007563.003.432.352.800.500.850.25121011063.003.432.352.800.901.300.25121015063.003.432.

11、352.800.801.800.25121017563.003.432.352.800.801.800.25121020063.003.432.352.800.801.800.25●1812貼片自恢復(fù)保險(xiǎn)絲電氣特性(23℃)IhItTripTimeVmaxImaxPdmaxResistanceModel型號(hào)AAASVAWRmin(W)Rtyp(W)Rmax(W)1812010300.100.300.51.5030.0100.80.750

12、2.00015.0001812010600.100.3080.0260.0100.80.7502.00015.0001812014600.140.341.50.1560.0100.80.6501.2006.5001812020300.200.408.00.0230.01000.80.3500.8005.0001812030300.300.608.00.1030.01000.80.2500.3503.0001812035300.350.7

13、58.00.1530.0400.80.2000.8003.0001812050150.501.008.00.1515.01000.80.1500.2501.0001812050240.501.008.00.0524.01000.80.1500.1501.0001812050300.501.008.00.1530.01000.80.1500.2501.0001812075130.751.508.00.2013.21000.80.0900.