Selection of Fuses in Small Home Appliance PCB Board

时间： 2023-12-08 来源：XC News

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The Fuses commonly used in PCB boards of small household appliances use self-recovery fuses to protect the circuit. The selection of self-recovery fuses in small household appliances can be divided into the following steps:

Firstly, determine the working voltage of the self-recovery fuse;

2. Based on the actual average operation of different products, determine whether the self-recovery fuse is the inactive current;

3. The maximum current ratio, temperature, and other parameters of household small appliances in actual work, as well as the time required for self-recovery fuse self-correction (self-recovery fuse action current amplification or reduction);

4. Revise it to an actual experiment and ensure that there is no false protection work, but it is necessary to self-recover the fuse parameters within the specified time and protect the motor from stalling. The change in the thermistor of a small motor is an easy choice, but after repeated experiments, the thermal resistance of the motor varies significantly

During the experiment, self-restore the resistance value of the fuse to determine the upper and lower limits.

Fig.1

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目录- Fuse Protection Upgrading Introduction Fused Circuit Protection Selection Advice Low Voltage Branch Circuit Fuses Low Voltage Supplemental Fuses and Limiters Electronic/PCB/Small Dimension Fuses High Speed Fuses IEC and British Standard Fuses Photovoltaic Fuses/Fuses Holders/Fuses Blocks Medium Voltage Fuses Fuse Blocks and Holders Power Distribution and Terminal Blocks Connector Products Disconnect Switches Quik-Spec™ Electrical Gear Surge Protective Devices Telecom Protection Products Fuse&Fuse Block Accessories Fuse&Fuse Block Cross Reference and Index Low-Peak™ Upgrade Program and Fuse Inventory Consolidation

型号- PV-1A10F,FNA-2-1/4,FWA-300B,FNA-2-1/2,170M3317,TD3-D,170M3316,170M3319,GBB-7-R,170M3318,170M3313,170M3312,TPA-B-30,170M5974,170M3315,170M5975,170M3314,170M5972,170M5973,_CIF21,170M5970,170M3311,ABC-1/2-R,170M5971,170M3310,CH142DU,CHM3DU,KLU-800,FWC-4A10F,DOOR-508,40FE,170M5989,170M4658,170M4659,170M5987,170M5988,170M5985,170M5986,HLQ SERIES,170M5983,170M3320,FRS-R-400,170M5984,170M5981,170M5982,170M3321,170M5990,170M4660,NTN-R-400,100LET,FRS-R-40*,40ET,5BCLS,GMD-600-R,FWH-125B,TCF40RN,BBS-3/4,JJN-600,170M5958,170M5959,170M5956,BRKT-FLT,170M5957,170M5954,_CIF06,170M5955,170M5952,CCP2RL-—-30M,170M5953,KRP-CL-300,RD40-3-508,15CLPT-_M-B,15CLPT-_M-A,FWH SERIES,FWX-1A14F,LPS-RK-8/10SP,FNA-6/10,C519-—-R,170M3309,KTK-R-1/10,170M5969,C5268-—,FWJ-2000A,KDD SERIES,170M5967,170M3308,ER_-800L3PB,170M5968,PV-_A-01XL,TPA-B-20,170M5966,170M5961,170M5960,TPA-B-25,FNM-3/4,HM25600-_,200FEE,MDQ-10,MDQ-12,FWP-60B,NTS-R-400,MDQ-15,170M4609,170M4608,FL3T_,170M5930,FWP-16G14F,170M5931,TP15900-,S506-1-R,FNQ-R-17-1/2,CHM3DIU,15HLE-_E,FWH-12A14F,FWH-300A,CH22—,KBC-_,170M4618,170M4619,FWH-50B,170M4616,170M4617,170M4614,170M4615,8CLPT-_M-B,170M4612,8CLPT-_M-A,170M4613,170M4610,170M4611,CCPLP-—-20G-—,500MMT,WCF1RN,12TKLEJ,GMC-125-R,GMC-2-R,FWK-50A25F,UHJ-T,BSPMA2-S3GR,ER_-25N3PB,FWA-1200AH,UHJ-M,ER_-80N6SB,170M5929,LPS-RK_SP,FWS-15A20F,170M5927,170M5928,170M5925,170M5926,170M5923,1A1706-_,170M5924,MT12-1-2,AGC-6-R,170M5922,FNQ-R-5-6/10,UHJ-W,FRN-R-400,_NZ02,5.5ABWNA_E,_NZ01,FRN-R-40*,RM60060-_,S500-32-R,71FE,JTN60030,SD1-D,ANN-500,NO.263-R,FWJ-350A,3.6WDLSJ,KBC-250,BCCMM603-3_,FRN-R-450,8NCLPT- E-B,FRN-R-45*,2NCLPT-,GMA-6-R,T-_,LPN-RK-90SP**,LPS-RK-10SP**,FNA-1/8,FWX-175A,FWH-250A,FNA-1/4,FNA-1/2,NITD-_,450MMT,CH22-CTP,KDA SERIES,TPSFH-N30,TSH1-,FWP-12G10F,LPS-RK-80SP**,C518-4-R,HBV-M,J101,14004-_,HBV-I,FRS-R-450,C518-2.5-R,LPN-RK-17-1/2SP,CVR_-RH-60030,FRS-R-45*,38 CAV,170H3004,SD4-S1600,170H3003,LPJ-600SP,BCM603-_,TCFH30N,C519-250-R,FWA-3000AH,CHM3DNIU,C515-600-R,170H3006,170H3005,CCP2SL-—-30CC,CCP2SL-—-30CF,C519-500-R,FRS-R-3-1/2,TCF17-1/2RN,S500-1.6-R,TCF35RN,MDL-7-R,AGC-1/4-R,OPM-NG-S_,MDQ--R,258GXZSJ_E,LPN-RK-2/10SP,FL3K_,FWX-700A,KIT-6POLE,GMD-315-R,KBC-225,FWJ-175A,SC-1-1/2,FNQ-1-6/10,DFJ-600,350FM,FNQ-R-2-1/4,CCP2R-—-30CC,FWP-500A,FNQ-R-2-1/2,CCP2R-—-30CF,5AHLE-_E,MDQ-2/10,FWP-_G22F,FWS-12A20FI,HM25200-_,9841,MDA-8-R,GBB-20-R,60/100BS,HM_ SERIES,BC-_,KCZ SERIES,24TXMEJ,CH223DNIU,1A5601,1A5602,GMD-4-R,1A5600,9838,180MMT,FWH-4A14F,4164,FWA-125B,KBC-200,LPS-RK-1/10SP,MDQ-1/100,GMQ SERIES,KRP-CL-350,LPS-RK-4SP,CVR_-RH-60060,KRP-C-4000SP,LPN-RK-1/2SP,GMC-500-R,FWP-50G14FI,NOS-50,GBB-V-_-R,C519-1.25-R,JKS-250,15100-,S500-4-R,PV-_A10F85L,KTU-1600,NOS-60,LPS-RK-5SP,JM60200-_,TPHCS-B-ML,LPS-RK-35SP**,LPN-RK-2SP,LPJ-60SP*,ATC-FHID,LPN-RK-20SP,36ABGNA,NOS-75,70M-8A,GBB-1-1/4-R,LP-CC-5-6/10,FWP-150A,FWJ-90A,MDL-8-R,LPJ-1-1/4SP,CCP2SL-—-60CF,AGC-3/16-R,170M5158,NOS-70,170M5159,CH22—DU,170M5165,170M5166,NTS-R-30,170M5163,170M5164,BNQ21-_,TB200-_,170M5161,155GXQSJ_E,C515-5-R,170M5162,TPN-400,170M5160,FWP-_G14F,HPF-L,BBS-,CHSF-,T30400-_,LPJ-35SP*,NOS-80,T30030-_,LPN-RK-600SP**,GMT-A,170M5167,FWP-50A22FI,170M5168,FG-_,CH14-MS3,CH14-MS1,GMA-V- -R,AGC-35-R,LP-CC-3-2/10,NOS-600,TPC-90,NOS-10,NOS-12,NOS-15,FWH-025A6FR,170M6469,SCY SERIES,170M6468,170M6467,170M6466,70B-2A,170M6465,TPN-90,ED-_,170M6471,LPJ-200SP,170M6470,LPN-RK-100SP**,LUG2-_,5AHLE,S500-80-R,NOS-20,CCP2RL-—-100CF,MDL-3-2/10-R,NOS-25,17.5TFLSJ,FRN-R-5-6/10,TPN-80,TPHCS-B-MAV,TSH4-_,GMC-250-R,TPN-450,15CLE-_M-D,MC-250,15CLE-_M-E,15CLE-_M-C,NOS-30,NOS-35,10CT,FWP-12G14F,170M5118,170M5116,170M5117,170M5114,170M5115,170M5112,170M5113,S501-1.25-R,HHF SERIES,KLM-3/10,TPN-70,CCP2R-—-60CF,KLU-3000,LPN-RK-125SP**,TPC-60,GMA-5-R,SH5-_,NOS-45,S505H-3.15-R,170M6459,KDT SERIES,170M6458,KCS SERIES,NOS-40,170M6464,CVR_-RH-60100,JJN-1000,170M6463,170M6462,170M6461,FNA-6-1/4,170M6460,TPN-60,TPC-75,MDA-1/2-R,NTS-R-60,KRP-C-801SP,FWA-250B,FRS-R-4/10,GMC-1-R,NON-300,FWP-25G14F,NO.2641-R,FNM-15/100,170M6421,TPN-50,170M 7498,TPC-40,NON-8/10,_NHG4B-690,FWH-25A14F,FWP-40A22F,FWA-600A,170M5109,CH22-IP20,170M5108,ATR-_,FWL-20A20F,170M5110,170M5111,NO.663-R,C519-125-R,MDL-2-1/4-R,TPN-40,JCL-B-_R,FRN-R-1-4/10,TPC-50,TPN-45,170M6409,170M6408,5.5AMWNA_E,3.6ADLSJ,8CLPT,TPC-25,TPC-20,TPN-30,LPS-RK-1-1/2SP,TPN-35,NO.1,NO.2,NO.4,C515-350-R,FWH-40B,170M6419,170M6418,170M6417,170M6416,170M6415,FNA-15/100,170M6414,NO.5,170M6413,NO.6,NON-3/4,170M6412,NO.7,170M6411,NO.8,170M6410,FRN-R-2/10,FWX-80A,KFZ SERIES,TI250,TPN-20,TPN-25,TPC-30,C520-—-R,ER_-30N3PB,FWH-600A,C5268-3,SOU SERIES,C5268-4,FWX-5A14F,C5268-5,170M4689,C5268-1,170M3359,C5268-2,170M3358,170M4688,BBS-6/10,CCP2R-—-100CF,170M3360,170M4692,170M4693,170M3362,170M4690,170M3361,170M4691,RS_ SERIES,S500-_-R,FWP-100G22F,TPN-10,FWP-25G10F,FWC-25A10F,TPN-15,PV-_A-01XL-B-15,HLR-2A,710LMMT,225FM,LPN-RK_SP,PV15M-4A-CT,170M3368,170M3367,RDF30J-3-COMP,170M3369,TPS-70L,170M3364,170M4696,170M3363,170M4697,ER_-16N3PB,170M3366,170M4694,170M3365,170M4695,170M3371,170M3370,LP-CC-8/

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目录- 公司介绍 Company Profile 温控器 Thermostat 保险丝 Fuses 企业资质与专利 Qualification and Patents Certifications

型号- C0015302Z,9K7.SK-B5,KSD305系列,9K7.SK-B3,CG-B,CG-A,SK-B1系列,9K7CG-XXX,SK-B5系列,KSD301系列,KSD307B,SK-A1,KSD307 SERIES,SK-A4,C0015301Z,9K7.SK-C2,SK-C2系列,C0025302Z,C4000302Z,KT SERIES,9K7.JW-A072,C2000302Z,CG-B系列,C0080303Z,9K7.SK-B11,JW-C系列,KSD305B,JW,KSD305-XXXX/XXXX,SK-C2,9K7SK-XXXX/XXXXX,C4000301Z,C5000301Z,SK,CG SERIES,9K4307-XXXX/XXXX,C0020302Z,CG,KT,KSD9700 SERIES,SK-B1,C5000302Z,C1000302Z,C0050303Z,SK-B5,C0035302Z,C0020303Z,C0040302Z,KSD307系列,KSD301-XXX/XXXXXX/XXX,9K7KT-XXXX/XXXXX,9K7.SK-F3,SK-F5系列,JW-B系列,C0060303Z,KSD9700,C0030301Z,KT系列,C7500301Z,C0070303Z,C0040303Z,SK-A1系列,9K9.9700-XXXXXXX,KSD305,KSD307,KT-A2,KT-A1,KSD301,C0030302Z,JW SERIES,JW系列,C0020301Z,C7500302Z,C0010302Z,9K4.307B,JW-A系列,CG-A1,C0025301Z,CG系列,KSD9700系列,C3000301Z,C2000301Z,C0030303Z,KT-A系列,SK SERIES,JW-B,JW-C,SK系列,KSD301 SERIES,KSD305 SERIES,CG-B2,C0010301Z,SK-F5,C3000302Z,SK-F6,9K7JW-XXXX,CG-A系列,KSD307-XXXX/XXXX,KT-A,9K4.307

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目录- Company Profile Circuit Protection - Fuses & Circuit Breakers Fuse Blocks, Holders & Terminal Blocks Power Distribution Modules Battery Management Relays & Solenoids Battery & Master Disconnect Switches Ignition Switches Rocker Switches Toggle Switches Momentary Switches Push-Pull, Rotary & Foot Switches Vehicle Connectors Indicator Devices Appendix

型号- 5558-BX,0AGC010.V,M-531-BP,68362-BX,097019BP,9118-BX,MIC2015.VP,24812,24063-08,30171-15-BX,M-531-BX,M-497-BX,30409-15-BX,58332-21-BP,9245-BX,0MIN030.ZXPRO,M-584,4721-P12-BX,98628-BX,46377-6,9245-BP,0AGC010.VP,46377-8,0MCB020.X,0FHZ00854-BX,31101,55025-01,54104-BX,0PAL4100XP,0CNN800E.V,RC-400112-RN,55025-04,JLLN225.X,55025-02,PL-525-AC,00970019X,55025-03,99025-BX,5558-BP,54104-BP,24612-10,95613-BX,48070-BX,M-284-02-BX,0PAL040.X,11041-06,M-550,00940367ZP,0FHA0001SXJ,0ATO004.V,0MAX030.X,0PAL160.X,0MAX030.V,08010200,58332-33-BP,PL-524-GC-BX,58027-02-BX,LMIN015.ZXPROA,JLLS1000X,0AGC0004ZP,MAHC0001TXJ,RC-700112-RN,57014-03-BX,91800-BX,LMIN020.VP,JLLN060.T,57300-11-BX,12301-BX,90036-02-BX,0MEG100.XP,24624-10,58027-02-BP,PL-86-AC000,90036-10,40100-BX,0185100.XP,PL-521-AC-BX,M-641-01-BP,59071-BX,0695XXX.LPXPS,MIC2010.V,956-3127-BX,5543-09,0PAL330.XP,0AGU060.VPG,M-641-01-BX,58312-G4-BX,JCAS060.X,58328-04-BX,PL-2,0SFE020.VP,0FLC014.XP,JCAS060.V,0812015.ZXST,95535-BX,55049-01,00940422Z,55016-BX,0FHM0002Z,0PAL280.X,5543-15,12063-BX,95062-57-BX,3298250.H,75600-02-BX,1254-BX,0AGC001.V,LMIN005.V,00940570ZXA,12804,81264-BP,MCAS050.VS,3298250.Z,DL-2 1,12805,0MIN030.VP,81264-BX,95522-A,90048-01,9576-BX,MIC3010.VP,00940557ZXA,83379-BX,M-597,02980900TXN,M-598,M-115,55016-06-BP,24214-BX,M-850-BP,56027-01,211020BP,58311-18,M-850-BX,0UCBXXX.X,00940553Z,24612-03,08081400,PDM33001ZXM,0SFE014.V,M-121,59024-110-BX,PL-85,PL-86,0211010.XP,0MAX020.XP,0CNN100E.V,24022-BX,12077-01-BX,M-448-BX,91812-BX,00940554Z,880064S,75600-25,PL-521-GC,48160-BX,0CNNXXX.V,PL-521-RC-BX,0AGC030.VP,55021-BP,JLLN025.T,880064,M-489-03,880062,MCAS025.XP,0PAL530.X,55065-02-BX,0812040.ZXST,68159 - 05,58311-02,PL-36-GC000-BX,58311-01,956-3135,00940551Z,3298125.Z,0PAL4100X,00940301ZP,PL-36-AC000-BX,48090-BX,55021-BX,0BPF0001ZP,PL-525,PL-524,PL-523,PL-522,55033-01-BX,PL-521,CNN200E,3298125.H,3298080.H,58311-08,58311-07,58311-13-BX,PL-526,0MIN003.VPGLO,75600-05,75600-04,58311-13,00940552Z,0AGW003.V,58311-11,75600-07,3298080.Z,46210-03-BX,03500418TXN,75600-02,75600-01,PL-118-GC001-BX,58326-27-BX,3298500.ZXSTA,9180-BX,3031-30,097026,55014-05-BX,880086,24 812,D9AB-14526-BA,097023,PDM71003ZXM,0MEG175.X,0CCB025.X,0695015.LPXPS,0MIN004.V,0MID050.XP,0MIN010.VP,55025-03-BP,0AGA0003ZP,LMIN010.V,JLLN003.T,2484-03-BX,0PAL440.XP,0MEG175.L,00940562ZPA,880076,M-288-BX,4721-P14,880073,4721-P12,4721-P10,24401,55025-03-BX,24402,0498200.TXN,097019,00940550Z,3031-20,86126-12,0AGC005.VP,30138-30-BX,0FHM0002SXJ,75125,JCAS060.XP,FHM200,04980932ZXT,0185050.X,7785-01,9050-01,0AGA005.V,JLLS100.V,00940462Z,880014,JLLS090.V,24505-01,86099-5-BX,880015,04980900ZXT,30409-20-BX,FHA30,54101-01,097038,0FHM0001XP,30409-20-BP,24 812-01,RC-400112-NN,08098981-BX,PL-521-AC,0MAB0001XP,50036-BX,58332-28-BP,JLLS002.T,1222-BX,12400,0AGC005.V,12401,M-428-BX,24124-BX,M-428-BP,JLLS015.T,9500-BX,12080-11-BX,0CNN275E.V,04980921GXM5,0AGU020.T,JCAS025.X,M-414-01-BP,58327-06-BP,57000-23-BX,033707.5LXS,FNY2,58327-06-BX,FNY1,LJCAXXX.X,24848,5011,0MID080.X,LJCA040.V,FNY1BP,0AGC07.5VP,LJCA040.X,57013-08-BX,M-485-BX,95060-BX,956-3126,956-3125,MCAS025.VS,956-3127,956-3122,956-3124,M-485-BP,5007,956-5307,0AGAXXX.VP,0211030.XP,PL-118,00940565ZPA,JCAS020.V,55065-02,PL-116,55065-03,JCAS020.X,0813050.ZXST,24115-B X,0AGU040.VPG,CNN035E,M-628-BP,0185XXX.XP,81264-01-BX,JLLS050.T,12063-01-BX,24107-BX,155 300,81264-01-BP,AGC2ZP,FHM200BP,08099080-BP,ZCAS175.XP,0OMN0002XP,0RBOX001Z,7792-BX,0MIN002.VP,0PAL060.XP,08099080-BX,11172-03,0SFEXXX.V,MIC3XXX.VP,92107-04,094480,11172-02,PL-525-RC,8487-BX,0MAX060.XP,P L- 612- A- B X,0MAX040.XPGLO,55093-BX,59024-36-BX,82159-2,50070-BX,82159-3,50203,95062-50-BX,0MINXXX.VP,0RBOX002Z,M-456-BX,551001-BX,M-320-RC000-BX,0ATO030.VPGLO,24063-BX,956-4138-BX,98628,82159-1,30056-50,11042,0GBC016.VP,95597,59024,95591,95593,9270-01,0AGU060.T,72079-01,1258-BX,12080-BX,9183-BX,0RBOX003Z,RA-700112-RN-BX,185100BP,0PAL440.X,0RBOX004Z,PL-524-RC-BX,MIC2XXX.ZXPRO,4721-P2-BX,HWB18,30056-40,0FHM0002XP,0337015.LXS,55036-BX,HWB12,5050,95582,08098780,M-628-BX,JLLS300.X,0ATO005.ZXPRO,0ATO030.V,30063-20-BX,0695040.LPXP,91812-02,0RBOX005Z,55017-02,30056-30,M-432-BX,30171-20-BX,48785,95521-B-BX,M-493-BP,98647,57300-03-BX,950601-01,12092-BX,901-325,0FNY0020XP,PDM61001ZXM,30090-2-BX,59024-12-BX,M-432-BP,0AGC025.VP,0695040.US,75920-05,50001-BX,0RBOX006Z,30056-20,58312-R4-BX,JLLS006.T,30056-25,68159-05-BX,30137-15,30137-10,580 27-11,95060-07-BX,0SFE009.V,5584-15,46379-6-BX,0PAL1120.X,55021-04,JLLN1000X,30056-10,5543-BX,90048-BX,0AGA005.VP,55021-07,LLN001.T,30056-15,298,0AFH0002XP,MCAS020.V,4112-RC000-BX,3298300.H,MRS7A,9 011,FHJC10 01G,30137-20,58332-04-BP,59071,9216-BX,CNN250E,M-284-BX,55033-02,24452-BX,RC-700112-DN,55033-01,55054-04-BX,75920-10,08098900-BX,0MIN005.VPGLO,3298XXX.ZXSTA,30137-30,LECLFMX0007Z-01,M-284-BP,00940362ZP,24420-BX,95060-03-BX,83285-01,M-612,58312-A4-BX,PL-86-GC000,0MAX040.XP,PL-624-A,00940565ZXA,211025BP,0PAL040.XP,0AGAXXX.V,PL-624-B,094413,86126-2,04980904ZXT,4 6 37 7-12,55046,74601-12,86126-4,HWB60,094

选型指南 - LITTELFUSE - Rev: 1-A-050219 - 2019年05月02日 PDF 英文下载

The Role of Current Fuses in Smart Meters

Current fuses play a vital role in smart meters. Firstly, they provide protection against overcurrent events. Smart meters are used to measure and manage electricity consumption accurately. However, electrical circuits can sometimes experience sudden surges in current due to various reasons such as power outages and subsequent restoration, short circuits in the electrical grid, or the malfunction of connected electrical appliances.

技术探讨发布时间 : 2024-11-08

Factors Affecting the Lifespan of Fuses and Their Evaluation

In this article, XC tells factors that affect the lifespan of fuses.

技术探讨发布时间 : 2023-12-17

Professional Knowledge of Self-healing Fuses

The operating principle of a self-healing fuse is a dynamic balance of energy. The current flowing through the self-healing fuse generates a certain amount of heat due to the thermal effect of the current (self-healing fuses all have resistance values), and the generated heat is completely or partially dissipated into the environment. The heat that is not dissipated will increase the temperature of the self-healing fuse components. The temperature during normal operation is relatively low, and the heat generated and dissipated reaches a balance.

技术探讨发布时间 : 2023-11-30

Several Factors Influence the Lifetime of Current Fuses

The lifetime of a current fuse is influenced by several factors. Firstly, the current rating of the fuse plays a crucial role. If a fuse is constantly operating near or at its rated current, it will experience more heat buildup and stress over time, which can shorten its lifetime.

技术探讨发布时间 : 2024-11-06

Explanation of Parameters in the PPTC Specification for Self Healing Fuses

This is very simple. As long as you know the meaning represented by the parameters in the specification book, you can clearly and quickly view the PTC specification book for self recovery fuses.

技术探讨发布时间 : 2024-08-21

Self Recovery Performance and Working Process of Self Recovery Fuses

Traditional fuses are installed in circuits. When an overcurrent occurs due to a fault or abnormality in the circuit, the fuse itself melts to cut off the current and protect the circuit. However, due to the fact that traditional fuses can only protect once and need to be replaced if burned out, some products still cannot resume operation after troubleshooting or abnormal overcurrent disappears. As a new type of overcurrent protection device, the self-recovery fuse has the function of automatic recovery, which can meet the performance requirements of similar applications.

技术探讨发布时间 : 2023-12-15

Electric Vehicle Malfunctions Due to Lack of Fuses or Diodes

With the development of life, electric vehicles have also become popular. In order to facilitate people‘s travel, many families have started to use electric vehicles, which are convenient and affordable. However, there are still many unknown problems that arise during use. Today, the editor will briefly talk about the structural issues of electric vehicles.

技术探讨发布时间 : 2023-12-06

Essential Knowledge for Selecting Automotive Fuses

When a certain overload current passes through, the heat generated is radiated to the surrounding environment through the melt and shell, and the heat dissipated through convection, conduction, and other means gradually reaches a balance with the heat generated. If the generated heat is greater than the dissipated heat, the melt temperature can increase； When the temperature reaches or exceeds the melting point of the melt, the melt melts, fuses, and cuts off the current, playing a role in safety protection of the circuit.

技术探讨发布时间 : 2023-12-10