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Home > Products > Circuit Protection > Fuses > MJS 5-R
Bel Fuse Inc.
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See specs for product details.

MJS 5-R

In Stock 68468 pcs Reference Price(In US Dollars)
1+
$0.8508
200+
$0.3298
500+
$0.3183
1000+
$0.3127
Manufacturer Part Number:
MJS 5-R
Manufacturer / Brand
Bel Fuse Inc.
Part of Description:
FUSE GLASS 5A 250VAC 2AG
Datasheets:
MJS 5-R(1).pdfMJS 5-R(2).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 68468 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MJS 5-R
Manufacturer / Brand Bel Fuse Inc.
Stock Quantity 68468 pcs Stock
Category Circuit Protection > Fuses
Description FUSE GLASS 5A 250VAC 2AG
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage Rating - AC 250 V
Size / Dimension 0.217' Dia x 0.591' L (5.50mm x 15.00mm)
Series MJS
Response Time Slow Blow
Package / Case 2AG, 5mm x 15mm (Axial)
Package Bulk
Operating Temperature -55°C ~ 125°C
Mounting Type Through Hole
Melting I²t 135
Fuse Type Cartridge, Glass
DC Cold Resistance 0.019 Ohms
Current Rating (Amps) 5 A
Color -
Breaking Capacity @ Rated Voltage 200A
Approval Agency CE, CSA, cULus, PSE

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can I use MJS 5-R on a transformer or switch-mode power supply input that has a high inrush current?
Yes, MJS 5-R is a slow-blow fuse, so it is often used on transformer primaries and SMPS inputs where startup surge is much higher than steady-state current. For MJS 5-R, the key check is not only the 5 A continuous rating, but also whether the inrush waveform stays within the time-current curve and melting I²t. If the supply starts repeatedly or has unusually large capacitor charging current, measure the real inrush and compare it against the MJS 5-R curve before committing to the design.
Is MJS 5-R suitable for 230 VAC equipment with high prospective fault current?
MJS 5-R can be used in 230 VAC equipment if the available short-circuit current at the fuse location stays within its 200 A breaking capacity at rated voltage and the installation keeps proper clearance and creepage for 250 V. In higher-energy mains locations, MJS 5-R may still need upstream protection from a breaker or branch fuse so the fuse is not asked to interrupt fault energy beyond its tested limit.
Can I replace MJS 5-R with MJS 5 directly in my board design or service BOM?
MJS 5 is the closest substitute for MJS 5-R, but the swap should still be checked against the exact mechanical format, lead style, time-delay behavior, and sourcing code used in your product. If your PCB footprint is built around the 2AG 5 mm x 15 mm axial body, MJS 5-R and MJS 5 are often functionally aligned, but you should still confirm the time-current curve, approval needs, and any packaging or manufacturing differences before releasing the change.
What PCB layout or mounting constraints should I watch for when using MJS 5-R?
MJS 5-R is a through-hole axial cartridge fuse, so the footprint must support the 5 mm x 15 mm body, adequate lead spacing, and enough clearance from hot components and high-voltage copper. For MJS 5-R in 250 V circuits, keep creepage and clearance consistent with your system insulation rules, and add mechanical support if the assembly will see vibration, shock, or repeated thermal cycling.
Is MJS 5-R a good choice for industrial control panels or long-duty operation at 5 A?
MJS 5-R is commonly used in industrial control and appliance circuits, but continuous operation near 5 A should be reviewed against ambient temperature, enclosure ventilation, and nearby heat sources. Fuse characteristics shift with temperature, so an MJS 5-R installed in a hot cabinet may run closer to its trip region than the same fuse in free air. For long-duty service, verify the actual load current, enclosure temperature, and conductor rating together rather than relying on nameplate current alone.
What is the practical difference between MJS 5-R and a 5 x 20 mm slow-blow fuse from another brand?
MJS 5-R uses the 2AG 5 mm x 15 mm axial format, while many other slow-blow fuses use a 5 x 20 mm body. Even when the electrical rating looks similar, the package length, lead geometry, and thermal mass are different, so a 5 x 20 mm part from another brand may not fit the same PCB footprint or holder. With MJS 5-R, the safest comparison is to check mechanical fit first and then compare the time-current curve and interrupt rating second.
Is MJS 5-R appropriate for motor, relay, or solenoid loads?
MJS 5-R can work well with motor, relay, and solenoid loads if the startup surge is brief and the average current remains within the fuse’s operating envelope. Because MJS 5-R is time-delay, it tolerates short surges better than a fast-acting fuse, but repeated cycling can still heat the element and reduce margin over time. The best check is to capture the actual startup current and verify it against the MJS 5-R curve under your real ambient conditions.
Can MJS 5-R be used in DC circuits, or is it only for AC applications?
MJS 5-R is listed for AC/DC use, but in DC applications you still need to verify the actual system voltage and the available fault current at the fuse location. DC interruption is often more demanding than AC because the arc is harder to extinguish, so the MJS 5-R rating should be applied in the context of your specific DC bus voltage, wiring, and upstream protection. If the DC source can deliver very high fault energy, the 200 A interrupt capacity and the rest of the protection chain need to be reviewed together.
Will MJS 5-R help with compliance, and what should I consider if the fuse must be field replaceable?
MJS 5-R carries CE, CSA, cULus, and PSE approvals, which can simplify component selection in regulated products, but the finished equipment still needs to meet the spacing, temperature, and safety rules of the final system. If serviceability matters, MJS 5-R in a soldered through-hole format is less convenient than a clip or holder during field replacement, so maintenance strategy should be decided early in the design.

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