--- product_id: 165860847 title: "BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20)" brand: "bojack" price: "433626₫" currency: VND in_stock: true reviews_count: 9 category: "Bojack" url: https://www.desertcart.vn/products/165860847-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp store_origin: VN region: Vietnam --- # Slow-blow time-delay tech 4A current rating 250V voltage capacity BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) **Brand:** bojack **Price:** 433626₫ **Availability:** ✅ In Stock ## Summary > ⏳⚡ Fuse smarter, not harder — protect your power with BOJACK precision! ## Quick Answers - **What is this?** BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) by bojack - **How much does it cost?** 433626₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/165860847-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp) ## Best For - bojack enthusiasts ## Why This Product - Trusted bojack brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust 250 Volt Endurance:** Built to handle high-voltage demands, safeguarding your equipment from overloads and surges. - • **Compact 5x20mm Glass Design:** Sleek, space-saving fuse fits perfectly in tight spots like vacuums and microwaves, blending seamlessly with your gear. - • **Reliable 4 Amp Current Rating:** Delivers consistent protection for circuits up to 4A, balancing safety and performance with ease. - • **Precision Time-Delay Protection:** Engineered to withstand inrush currents without nuisance blows, ensuring your devices start smoothly every time. - • **Convenient 20-Pack with Storage Case:** Stay prepared with a bulk pack neatly organized in a durable plastic case—perfect for pros on the go. ## Overview The BOJACK T4AL250V is a pack of 20 high-quality 5x20mm slow-blow glass fuses rated at 4 amps and 250 volts. Designed with time-delay technology, these fuses absorb energy from inrush currents to prevent premature blowing, making them ideal for sensitive electronics and appliances. Compact and reliable, they come in a handy storage case, perfect for professionals and DIY enthusiasts seeking dependable circuit protection. ## Description BOJACK 20 Pcs High Quality Slow-blow Glass Fuse Fuse model:T4AL250V Fuse Current: 4A Fuse Voltage: 250V Fuse Dimension:5x20mm/0.2x0.78 Inch The role of the Slow-blow fuse：The slow-blow fuse is also called a time-delay fuse. Its delay characteristic is maintained in the circuit when it has a non-fault pulse current and can protect against long-term overload. Some circuits have a current greater than a few times the normal operating current at the switching instant. Although this current peak is very high, it occurs for a short period of time. We call it a pulse current or an inrush current or a surge current. Ordinary fuses can not withstand such currents. If such a circuit uses an ordinary fuse, it may not be able to start normally. If a larger fuse is used, it will not be protected when the circuit is overloaded. The melt of the time-delay fuse is specially processed to absorb energy. By adjusting the energy absorption, it can resist the inrush current and protect the overload. Review: So far so good - So I was a little weary buying Chicom components. I usually stay away but this was the only one I could get of this value. Seems to work and does the job. It fits perfectly. For those of you who may not know this is the shorter fuse. You might find in vacuums, microwaves and so on Review: GOOD PRODUCT - Im a service tech. bought these to have on my truck ## Features - BOJACK 20 Pcs High Quality Slow-blow Glass Fuse - Fuse Dimension: 5x20mm/0.2x0.78 Inch - Fuse Current: 4A - Fuse Voltage: 250V - Package Quantity: 20 pcs Packed in a plastic storage case ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X3N43CH | | Best Sellers Rank | #77,870 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #111 in Cartridge Fuses | | Brand Name | BOJACK | | Current Rating | 4 Amps | | Customer Reviews | 4.7 4.7 out of 5 stars (199) | | Item Dimensions | 2.76 x 1.97 x 0.59 inches | | Manufacturer | BOJACK | | Material Type | Glass | | Maximum Current | 4 Amps | | Model | BJ-SBF250-4A | | Mounting Type | Through-Hole Mount | | Part Number | BJ-SBF250 | | UPC | 769390171614 | | Unit Count | 20 Count | | Voltage | 250 Volts | ## Product Details - **AC Adapter Current:** 4 Amps - **Brand:** BOJACK - **Item dimensions L x W x H:** 2.76 x 1.97 x 0.59 inches - **Material:** Glass - **Voltage:** 250 Volts ## Images ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) - Image 1](https://m.media-amazon.com/images/I/71CkW5jHDfL.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) - Image 2](https://m.media-amazon.com/images/I/81f+dVqoxZL.jpg) ![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) - Image 3](https://m.media-amazon.com/images/I/71szzI99pRS.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ So far so good *by J***E on August 19, 2025* So I was a little weary buying Chicom components. I usually stay away but this was the only one I could get of this value. Seems to work and does the job. It fits perfectly. For those of you who may not know this is the shorter fuse. You might find in vacuums, microwaves and so on ### ⭐⭐⭐⭐⭐ GOOD PRODUCT *by A***R on December 23, 2025* Im a service tech. bought these to have on my truck ### ⭐⭐⭐⭐⭐ Saved my Ion "Game Day" speaker. *by J***N on November 8, 2023* Speaker was DOA. Took it apart, swapped battery, still no love. Worked when plugged in but no battery life etc... Finally determined that there is a fuse inline with battery connections. It was cracked. These were a perfect replacement, after installation, works fine and now I have spares if it happens again. ## Frequently Bought Together - BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) - BOJACK T3AL250V 5x20mm 3A 250V Slow Blow Fuses 3 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) - BOJACK T2AL250V 5x20mm 2A 250V Slow Blow Fuses 2 amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses (Pack of 20) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/165860847-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp](https://www.desertcart.vn/products/165860847-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-13*