5×20 mm Ātri (Lēni) Cauruļu drošinātāji ar vadiem

Līdz 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 drošinātāji: fast-blow type (F tips) and slow-blow type (T tips). 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 netraucēts 0.79 collu, 5 netraucēts 20 mm (5amp)

2250 V 5 mm x 20 mm ātras darbības stikla caurules kasetnes drošinātājs

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

Attiecībā uz pielietošanas scenārijiem, šāda veida drošinātājus plaši izmanto sadzīves tehnikā, rūpnieciskās iekārtas, automobiļu elektronika un citas jomas. Parametri, kuriem jāpievērš uzmanība, pērkot, ietver nominālo strāvu, nominālais spriegums, kausēšanas īpašības (ātri vai lēni), un sertifikācijas standarti (piemēram, UL, CSA, Vde, utc).

There are also different types of 5*20 fuse holders, 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 diametrs, 20mm length) cylindrical circuit protection component, mainly used for overcurrent protection. The following is its core characteristics and application information:

Es. 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. ‌
Stikla caurule: transparent and visible, easy to observe the fuse status (common in low-voltage household appliances).
Keramikas caurule: strong high temperature resistance, suitable for industrial environments. ‌

‌Current and voltage range‌
Nominālais spriegums: mainstream is 250V, and some models support 125V. ‌
Pašreizējais diapazons: Covering ‌0.1A~30A‌, common segments include:
‌Small current‌ (≤1A): 0.1Izšķirt, 0.2Izšķirt, 0.25Izšķirt, 0.5Izšķirt, 1Izšķirt (precision instruments, LED apgaismojums);
‌Medium and high current‌ (>1Izšķirt): 2Izšķirt, 3Izšķirt, 5Izšķirt, 10Izšķirt, 15Izšķirt, 20Izšķirt, 30Izšķirt (power supply equipment, motors);

‌Fusing characteristics‌ ‌Fast-break type (F tips): Ātra atbilde, suitable for sensitive electronic equipment (marked such as F1A, F5A). ‌
Lēnā pārtraukuma veids (T tips): Resistant to instantaneous current shock, piemērots motoriem un transformatoriem (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 lēns trieciens 5 netraucēts 20 Kārtridžu drošinātājs

Ii. Key parameters and certifications ‌

Electrical performance‌ ‌Breaking capacity‌: 35A@250V (low current model) to 200A@250V (high current model), nodrošinot drošu atvienošanu īssavienojuma gadījumā. ‌
Temperatūras pielāgošanās spēja: Working temperature ‌-55℃~125℃‌, passed the hot and cold shock test (-40℃~90℃ cycle). ‌

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

🛠️ III. Application scenarios and accessories ‌Typical applications‌
Sadzīves tehnika: strāvas adapteris, small appliance circuit board (commonly used 1A~5A). ‌
Rūpnieciskās iekārtas: servo piedziņa, barošanas modulis (commonly used 10A~30A). ‌
‌Outdoor equipment‌: ūdensizturīgs drošinātāju turētājs (IP67 klase) for street lights and vehicle-mounted equipment. ‌

Atbilstošs drošinātāju turētājs
PCB instalācijas veids: straight leg/bent leg design (such as PTF-77), supporting 10A~20A current. ‌
‌Waterproof lead type‌: with PVC sheath and nickel-plated brass terminals (piemēram, H3-520E), suitable for harsh environments. ‌

💡 IV. Purchase recommendations ‌Current matching‌
Select according to 1.5 times the maximum operating current of the circuit (piemēram: the maximum current of the circuit is 2A → select a 3A fuse). ‌
‌Motor type‌: Prefer slow-break type (T) to avoid false fuse at startup. ‌Digital circuit‌: Select fast-break type (F) 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/gabals, 100 gabalu minimums) ‌
Retail replacement: Yaxun Electronics’ JD/Tmall (about $0.5 for 10 pieces). ‌

💎 Kopsavilkums
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.