5×20 mm Брзо (Бавно) Цевки осигурувачи со кабли

На 520 fuse is a cylindrical glass or ceramic fuse tube with a diameter of 5mm and a length of 20mm. The rated voltage is usually 250V, and the current ranges from 0.1A to 30A.

There are two main types of 5*20 осигурувачи: fast-blow type (Тип F) and slow-blow type (Т тип). Fast-blow type is suitable for general electronic equipment, while slow-blow type is suitable for equipment with large starting current such as motors. The current specifications are very wide, ranging from the smallest 0.1A to the largest 30A.

F5AL Fast-Blow Fuse 5A 250V Glass Fuses 0.2 x 0.79 инчи, 5 x 20 мм (5засилувач)

2Осигурувач за касети од стаклена цевка со брзо дејство 250V 5mm x 20mm

5 * 20mm Axial Glass fuse tube With Lead Wire size picture

Во однос на сценаријата за апликација, овој тип на осигурувачи е широко користен во домашните апарати, индустриска опрема, автомобилска електроника и други области. Параметрите на кои треба да се обрне внимание при купувањето вклучуваат номинална струја, номинален напон, карактеристики на спојување (брзо или бавно), и стандарди за сертификација (како што е UL, АДС, VDE, итн.).

There are also different types of 5*20 држачи за осигурувачи, such as direct plug-in type, waterproof type with leads, and PCB mounting type. Waterproof fuse holders are suitable for harsh environments such as outdoor lighting. The current carrying capacity of the fuse holder is usually 6-10A, and can reach up to 30A.

5*20 fuse is a standard size (5mm дијаметар, 20mm length) cylindrical circuit protection component, mainly used for overcurrent protection. The following is its core characteristics and application information:

Јас. Basic specifications and types
‌Size standard‌
Unified cylindrical design with a diameter of 5mm×length of 20mm, glass or ceramic package, and metal cap electrodes at both ends. ,
Стаклена цевка: transparent and visible, easy to observe the fuse status (common in low-voltage household appliances).
Керамичка цевка: strong high temperature resistance, suitable for industrial environments. ,

‌Current and voltage range‌
Номинален напон: mainstream is 250V, and some models support 125V. ,
Тековен опсег: Covering ‌0.1A~30A‌, common segments include:
‌Small current‌ (≤1A): 0.1А, 0.2А, 0.25А, 0.5А, 1А (precision instruments, LED осветлување);
‌Medium and high current‌ (>1А): 2А, 3А, 5А, 10А, 15А, 20А, 30А (power supply equipment, мотор);

‌Fusing characteristics‌ ‌Fast-break type (Тип F): Quick response, suitable for sensitive electronic equipment (marked such as F1A, F5A). ,
Тип со бавно прекинување (Т тип): Resistant to instantaneous current shock, погоден за мотори и трансформатори (marked such as T2A, T10A). ,

5 * 20mm Axial Glass fuse tube Fast Blow 250V With Lead Wire 0.5A/1A/2A/3A/3.15A/4A/5A/6.3A/8A/10A/12A/15A

5 * 20mm Axial Glass Fuse Quick Fast Break 250V with Lead Wire 0.5A-25A

520S-250mA .25A 250V Бавен удар 5 x 20 Осигурувач за кертриџ

II. Key parameters and certifications ‌

Electrical performance‌ ‌Breaking capacity‌: 35A@250V (low current model) to 200A@250V (high current model), обезбедување на безбедно исклучување во случај на краток спој. ,
Температурна приспособливост: Working temperature ‌-55℃~125℃‌, passed the hot and cold shock test (-40℃~90℃ cycle). ,

‌Safety certification‌
Mainstream products have passed ‌UL, АДС, CCC, VDE, RoHS‌ certification and meet international safety standards. ,

🛠️ III. Application scenarios and accessories ‌Typical applications‌
Апарати за домаќинство: power adapter, small appliance circuit board (commonly used 1A~5A). ,
Индустриска опрема: серво погон, модул за напојување (commonly used 10A~30A). ,
‌Outdoor equipment‌: водоотпорен држач за осигурувачи (IP67 одделение) for street lights and vehicle-mounted equipment. ,

Соодветен држач за осигурувачи
Тип на инсталација на ПЦБ: straight leg/bent leg design (such as PTF-77), supporting 10A~20A current. ,
‌Waterproof lead type‌: with PVC sheath and nickel-plated brass terminals (како што е H3-520E), suitable for harsh environments. ,

💡 IV. Purchase recommendations ‌Current matching‌
Select according to 1.5 times the maximum operating current of the circuit (на пример: the maximum current of the circuit is 2A → select a 3A fuse). ,
‌Motor type‌: Prefer slow-break type (Т) to avoid false fuse at startup. ‌Digital circuit‌: Select fast-break type (Ф) to enhance overcurrent response. ,
‌Certification and reliability‌
Confirm that the product has the ‌UL/CCC‌ mark to avoid uncertified brands (high safety risks). ,

‌Purchase channels‌
Bulk purchase: Yaxun Electronics’ 1688 platform ($0.02/парче, 100 парчиња минимум) ,
Retail replacement: Yaxun Electronics’ JD/Tmall (за $0.5 за 10 pieces). ,

💎 Резиме
5*20 fuse is the basic protection component of electronic circuits. The selection needs to be based on current demand, fusing characteristics and environmental conditions. Give priority to brand products with complete certifications (such as Litte and Huade), and match them with corresponding fuse holders to ensure stable installation. ‌ For industrial or outdoor scenes, be sure to choose waterproof and high temperature resistant models to ensure long-term reliability.