5×20 ملم سريع (بطيئة) صمامات الأنبوب مع خيوط

ال 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 الصمامات: fast-blow type (و نوع) and slow-blow type (نوع t). 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 س 0.79 بوصة, 5 س 20 مم (5amp)

2250 فولت 5 مم × 20 مم من خرطوشة الأنبوب الزجاجي سريع المفعول

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

بخصوص سيناريوهات التطبيق, يستخدم هذا النوع من الصمامات على نطاق واسع في الأجهزة المنزلية, المعدات الصناعية, إلكترونيات السيارات وغيرها من الحقول. تشمل المعلمات التي يجب إيلاء الاهتمام بها عند الشراء الحالي, الجهد المقنن, خصائص دمج (سريع أو بطيء), ومعايير الشهادات (مثل UL, وكالة الفضاء الكندية, VDE, إلخ.).

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

أنا. 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. ‌
‌أنبوب زجاجي: transparent and visible, easy to observe the fuse status (common in low-voltage household appliances).
‌أنبوب سيراميك‌: strong high temperature resistance, suitable for industrial environments. ‌

‌Current and voltage range‌
‌الجهد المقدر‌: mainstream is 250V, and some models support 125V. ‌
‌النطاق الحالي‌: Covering ‌0.1A~30A‌, common segments include:
‌Small current‌ (≤1A): 0.1أ, 0.2أ, 0.25أ, 0.5أ, 1أ (precision instruments, إضاءة LED);
‌Medium and high current‌ (>1أ): 2أ, 3أ, 5أ, 10أ, 15أ, 20أ, 30أ (power supply equipment, محرك);

‌Fusing characteristics‌ ‌Fast-break type (و نوع): Quick response, suitable for sensitive electronic equipment (marked such as F1A, F5A). ‌
‌نوع الكسر البطيء (نوع t): Resistant to instantaneous current shock, مناسبة للمحركات والمحولات (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 ضربة بطيئة 5 س 20 خرطوشة الصمامات

الثاني. Key parameters and certifications ‌

Electrical performance‌ ‌Breaking capacity‌: 35A@250V (low current model) to 200A@250V (high current model), ضمان فصل آمن في حالة حدوث ماس كهربائي. ‌
‌القدرة على التكيف مع درجات الحرارة‌: Working temperature ‌-55℃~125℃‌, passed the hot and cold shock test (-40℃~90℃ cycle). ‌

‌Safety certification‌
Mainstream products have passed ‌UL, وكالة الفضاء الكندية, سي سي سي, VDE, RoHS‌ certification and meet international safety standards. ‌

🛠️ III. Application scenarios and accessories ‌Typical applications‌
‌household Appliances‌: power adapter, small appliance circuit board (commonly used 1A~5A). ‌
‌المعدات الصناعية: محرك سيرفو, وحدة الطاقة (commonly used 10A~30A). ‌
‌Outdoor equipment‌: حامل فيوز مقاوم للماء (درجة IP67) for street lights and vehicle-mounted equipment. ‌

‌مطابقة حامل الصمامات‌
‌نوع تركيب ثنائي الفينيل متعدد الكلور‌: straight leg/bent leg design (such as PTF-77), supporting 10A~20A current. ‌
‌Waterproof lead type‌: with PVC sheath and nickel-plated brass terminals (مثل H3-520E), suitable for harsh environments. ‌

💡 IV. Purchase recommendations ‌Current matching‌
Select according to 1.5 times the maximum operating current of the circuit (على سبيل المثال: the maximum current of the circuit is 2A → select a 3A fuse). ‌
‌Motor type‌: Prefer slow-break type (ت) to avoid false fuse at startup. ‌Digital circuit‌: Select fast-break type (و) 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: ياكسون للإلكترونيات’ 1688 platform ($0.02/قطعة, 100 قطع الحد الأدنى) ‌
Retail replacement: ياكسون للإلكترونيات’ JD/Tmall (عن $0.5 ل 10 pieces). ‌

💎 ملخص
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.