What are the Classifications of Fuses
There are many types of fuses, including classification by protection form, scope of use, volume, rated voltage, breaking capacity, and fusing speed. Below, we will introduce the classification by type, which can be divided into current fuses: patch fuse, miniature fuses, plug-in fuses, and tubular fuses; Temperature fuse: RH square type, RP resistance type, RY metal case; Self recovery fuse: plug-in, laminated, patch.
1、Current fuse
Chip fuse. There are specifications such as 0805 and 1206, which use thin film technology to accurately control electrical characteristics. Due to its small size, it is an ideal choice for providing secondary protection for circuits in space limited applications, such as handheld portable electronic devices and various instruments and meters.
2、Temperature fuse
It is an irreparable disposable thermal protection device, available in RH, RF, RY, and other series. The product has a delicate appearance and structure, good sealing performance, sensitive and reliable operating temperature, small impact of current shock, and vibration resistance. It is mainly used in electric fans, rice cookers, electric fryers, disinfection cabinets, etc.
3、Self recovery fuse
This is a type of fuse that can automatically recover due to excessive current causing an open circuit in the circuit. It belongs to the multiple-use type and is suitable for overload protection circuits.
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旭程（XC）温控器选型指南
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
Calculation Method for Melt Current of Fuse Fuses
The current of a fuse includes two aspects, one is the rated current of the fuse tube, and the other is the rated current of the melt, which cannot be confused.
赛尔特（SETsafe丨SETfuse）小型熔断器选型指南
目录- Cartridge Fuse-links (CFL) Sub-miniature Fuse-links (SFL) Surface Mount Fuse-links (SMFL)
型号- SCF625PF15A,SCF1032F3.15A,SCF520F1A,SGF520-1.25A-L,SCT520T5A,SCF632P12A,SGT520-6.3A,SCF625PF6.3A,SGF520-3.15A,SCT520PT1.6A,SPF478-2.5A,SPT478-10A,SCF520,SCT520PT500MA,SCT6125T2.5A,SCT1032T160MA,SCF6125F2.5A,SCT1032T400MA,SCF63212.5A,SGT520-8A,SCF520PF1.6A,SCT520PT15A,SPT478-1.6A,SC625,SCF63220A,SCT6125T1.6A250V,SCT6125T250MA,SCT520T4A,SCF625F25A,SGF520-1A,SCF520F2A,SPT478-500MA,SCF632P25A,SCF625PF16A,SCT1032T8A,SCT1032T800MA,SCT1032T12A,SGF520,SCT6125T3.15A,SCF632,SPF478-10A,SCF520F500MA,SCF625,SCF1032F20A,SCF632P6.3A,SCT520P,SCF520PF12A,SCT520PT16A,SPF478-3.15A,SCF520PF12.5A,SCF520F12A,SCF632P,SCF520P SERIES,SCF63221A,SCF6321.6A,SGF520-1.6A,SCF6125 SERIES,SCT1032T6.3A,SCF625F16A,SCT520T3A,SGF520-15A,SCT520PT2.5A,SGT520-12A,SCT1032T100MA,SCF632P SERIES,SCF6125F8A,SCF520F1.25A,SC625FM10A,SPT478-5A,SCT1032T315MA,SCF520PF25A,SCF6125F1.6A,SCT520PT25A,SCT1032T1.25A,SGF520 SERIES,SPT478-125MA,SCF632P10A,SCF520F25A,SPT478-200MA,SCF63210A,SCT520PT8A,SGF520-16A,SCF625F15A,SPT478-250MA,SCT61251200MA,SGT520 SERIES,SPT478-4A,SCF6328A,SCF632P12.5A,SGT520-5A,SCF1032F30A,SCT520T16A,SCT6125T8A,SCF6322.5A,SCE520PF16A,SCF63225A,SCT6125T2A,SGT520-1.25A,SCT520T1A,SCF520PF800MA,SGT520-1.6A,SCT520T1.25A250V,SCF6325A,SCT1032T15A,SCF520F5A,SPF478-2A,SCF520PF15A,SPT478-6.3A,SC625FM3A,SPT478-160MA,SCF520F15A,SCT520P SERIES,SCF632P20A,SCF520F800MA,SCT520PT630MA,SCF520P,SCT520PT400MA,SCF63212A,SPT478-315MA,SCT6125T1A,SCF625PF12A,SCF520F630MA,SCT1032T1.6A250V,SPT478-2A,SCF6326A,SCF6321.25A,SCF1032F12A,SGF520-12.5A,SCF520PF1A,SCT520PT12A,SCT520PT3.15A,SGT520-500MA,SCF520PF630MA,SCF632P21A,SCF6326.3A,SCF632P1.6A,SCT520T30A,SCF520F16A,SCF63215A,SCF625PF25A,SGT520-16A,SGF5201.25A,SCT6125 SERIES,SCF520F12.5A,SCF520F1.25A250V,SPT478-1A,SGT520-2.5A,SCT520T12.5A,SCF1032F2A,SCT1032T125MA,SCF520F3A,SCF6321.25A250V,SCF625F12.5A,SC625FM5A,SCF520PF2A,SCT520 SERIES,SCF520PF2.5A,SPT478-100MA,SCT520PT800MA,SCF632P30A,SCF625PF5A,SPF478 SERIES,SCT6125T5A,SCF632P1A,SGT520-15A,SCF520F400MA,SCF63216A,SCT6125T3A,SCF632PF6A,SCF1032F1A,SGF520-500MA,SCF6324A,SCF520F4A,SPT478-1.25A,SPF478-1A,SCF520PF3A,SCT520PT10A,SCF520PF400MA,SPT478T1A250V,SCT520T500MA,SCF1032F10A,SCF6125F20A,SC625 SERIES,SCF625F50A,SCT6125T200MA,SGT520-12.5A,SCT6125T4A,SCT1032T200MA,SGF520-2.5A,SCF632P2A,SCF632P4A,SGF520-800MA,SCT520PT1A,SCF1032F2.5A,SGT520,SCF632P3.15A,SCF6125F1.6A250V,SCF6125F3.15A,SCF6321A,SGF520-8A,SCF1032F15A,SCF520PF5A,SCF625F12.5A250V,SCF520PF4A,SCF520F1.6A,SCF1032F5A,SCT61251630MA,SC625FM7A,SCT6125T400MA,SCT6125T630MA,SCT520T6.3A,SCF632P5A,SCT1032T3.15A,SCT520T800MA,SCT520T630MA,SCF6322A,SCF1032F16A,SCF1032F3A,SPT478,SCF625PF20A,SCT520PT20A,SCF6125F10A,SCF6125F2A,SCF1032F4A,SCF625F40A,SCF1032F1.25A,SGF520-630MA,SCF625 SERIES,SCT520T10A,SCT520T1.25A,SPF478-6.3A,SCF1032F1.6A,SCF632P6A,SCT6125T315MA,SCF1032F25A,SCT6125T6.3A,SCT6125T1.25A,SPF478-4A,SCF520F2.5A,SC625FM13A264V,SCT6125T800MA,SPF478-1.25A,SCF625F5A,S0T1032T250MA,SCF1032,SCT520PT12.5A,SCT520T400MA,SGF520-20A,SCF520PF500MA,SCT1032 SERIES,SGT520-630MA,SCF520F8A,SCT6125T12A,SCF625PF10A,SCF520PF8A,SCF6125F12A,SCT520PT30A,SCT1032,SPF478-5A,SGT520-800MA,SCF625F30A,SCF632P2.5A,SCF625PF8A,SCF625F6A,SCT520T20A,SCT1032T2.5A,SCF625P,SCT1032T5A,SCF632P16A,SCT520PT6.3A,SCT1032T500MA,SCF632P8A,SCF625F10A,SGF520-4A,SGT520-1.25A-L,SCF520F6.3A,SCF520PF6.3A,SGT520-10A,SPT478-3.15A,SCT6125T500MA,SGT520-4A,SPF478F1A250V,SCF520PF3.15A,SCT520T15A,SCF1032 SERIES,SCT520PT4A,SCT1032T4A,SGF520-10A,SCT520T1.6A,SSCF625PF50A,SGF520-5A,SCF625PF40A,SCF520F3.15A,SCF520PF20A,SCF1032F8A,SC625FM13A,SCF1032F12.5A,SPT478-400MA,SCF1032F40A,SCF632 SERIES,SCF520PF1.25A,SCF520F20A,SCT6125T10A,SCF625P SERIES,SCF625F20A,SCT520T8A,SCF6125F12.5A,SCT1032T3A,SCT520PT5A,SCF625F8A,SGF520-6.3A,SCT1032T1.6A,SCT520PT3A,SCT52012A,SCF1032F1.6A250V,SCF625F12A,SGF520-2A,SCF1032F6.3A,SPF478,SCF6125F15A,SGT520-20A,SPF478-1.6A,SCF6323.15A,SCF6125F4A,SCT6125T1.6A,SCF6125F3A,SPF478-8A,SPT478-2.5A,SCF6125F6.3A,SCT520,SGT520-3.15A,SCF6125,SCT520T25A,SCF63230A,SCT1032T12.5A,S0T1032T630MA,SCT1032T2A,SGT520-2A,SCT520PT2A,SCF520 SERIES,SCF632P15A,SCT520T3.15A,SCT520T2.5A,SGF520-12A,SCT6125T12.5A,SCF632P1.25A,SCF6125F16A,SCF625PF12.5A,SCF6125F5A,SCT520PT1.25A,SPT478-8A,SCF625PF30A,SCT6125,SPT478-630MA,SCF520PF10A,SCF520F10A,SCT1032T10A,SCT520T12A,SCF625F6.3A,SGT520-1A,SPT478-800MA,SCT1032T1A
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.
赛尔特（SETsafe丨SETfuse）贴片熔断体选型指南（中英文）
目录- Surface Mount Fuse-links Introduction SCF1032 Series SCT1032 Series SCF6125 Series SCT6125 Series
型号- SCF1032F2.5A,SCT6125T2A,SCT1032T5A,SCF6125F1.6A250V,SCT1032T500MA,SCT1032T250MA,SCF6125F3.15A,SCF1032F15A,SCT1032T15A,SCT6125T2.5A,SCT6125T500MA,SCT1032T160MA,SCF6125F2.5A,SCT1032T400MA,SCF1032F5A,SCT1032T630MA,SCT6125T1.6A250V,SCT6125T400MA,SCT6125T630MA,SCF1032 SERIES,SCT6125T250MA,SCF132F12.5A,SCT6125T1A,SCT1032T4A,SCT1032T1.6A250V,SCT1032T3.15A,SCT1032T8A,SCT1032T800MA,SCT1032T12A,SCF1032F16A,SCT6125T3.15A,SCF1032F3A,SCF1032F12A,SCF1032F20A,SCF1032F8A,SCF1032F40A,SCF6125F10A,SCF6125F2A,SCF1032F4A,SCT6125T10A,SCT1032T1OA,SCF132F3.15A,SCF1032F1.25A,SCF6125F12.5A,SCT1032T3A,SCT1032T1.6A,SCT1032T6.3A,SCF6125 SERIES,SCF1032F1.6A,SCF1032F1.6A250V,SCT6125T315MA,SCF1032F6.3A,SCT6125 SERIES,SCF6125F15A,SCT1032T100MA,SCF6125F8A,SCF1032F2A,SCT1032T125MA,SCF6125F4A,SCF1032F25A,SCT6125T1.6A,SCT6125T6.3A,SCT1032T315MA,SCT6125T1.25A,SCF6125F1.6A,SCF6125F3A,SCF6125F6.3A,SCT1032T1.25A,SCT6125T800MA,SCF6125,SCT1032T12.5A,SCT6125T5A,SCT1032T2A,SCF1032,SCT6125T3A,SCT6125T12.5A,SCT1032 SERIES,SCF6125F16A,SCT6125T12A,SCF1032F1A,SCF6125F5A,SCF6125F12A,SCT6125,SCF1032F10A,SCT1032,SCF6125F20A,SCF1032F30A,SCT6125T8A,SCT6125T200MA,SCT6125T4A,SCT1032T200MA,SCT1032T1A,SCT1032T2.5A
Encapsulation Forms of Current Fuses
The encapsulation of current fuses is an important aspect that affects their performance, durability, and safety.
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.
The Installation Precautions for Current Fuses
The installation of current fuses is crucial for ensuring the safety and proper functioning of electrical circuits. Here are some important installation precautions to keep in mind.
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.
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.
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.
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.
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