Littelfuse 315005P - SLO-BLO GLASS AXIAL 5A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: In accordance with UL Standard 248-14. Available in cartridge and axial lead format and with various forming dimensions. RoHS compliant and Lead-free.
Littelfuse

315005P

Alternate Item Number: 0315005.VXP

UPC: 079458927474


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Overview

The Littelfuse 315005P SLO-BLO® GLASS AXIAL 5A fuse is a trusted circuit protection solution engineered for industrial and commercial applications where reliable performance and cost efficiency are critical. Designed as part of the 3AG Series, this axial lead fuse combines a robust glass body with a 5-ampere current rating to deliver consistent protection against overcurrent conditions in sensitive electronic systems. Compliance with UL Standard 248-14 ensures adherence to stringent safety and performance benchmarks, making it suitable for use in power supplies, control panels, instrumentation, and other high-reliability environments. Industrial professionals choose the Littelfuse 315005P for its proven reliability and versatility. The 3AG form factor is widely recognized across multiple industries—including automation, telecommunications, automotive testing, and renewable energy—due to its compact size and ease of integration into printed circuit boards and chassis-mounted assemblies. The axial lead configuration simplifies installation in through-hole designs, reducing assembly time and minimizing the risk of mechanical stress on components. Additionally, the fuse’s RoHS-compliant and lead-free construction aligns with global environmental regulations, supporting sustainable manufacturing practices without compromising performance. Selecting the right fuse for industrial applications requires balancing current rating, response time, and environmental compatibility. The SLO-BLO® design—known for its slow-blow characteristic—delays response to transient overloads, preventing nuisance tripping in systems with inrush currents such as motors, transformers, or capacitive loads. This makes the 315005P ideal for protecting circuits where temporary current spikes are normal but sustained overcurrent must be interrupted to prevent damage. Its 5A rating provides a precise balance between sensitivity and robustness, ensuring protection for low-to-moderate power applications without compromising operational continuity. Littelfuse, a global leader in circuit protection technologies, has manufactured the SLO-BLO® series for decades, earning a reputation for durability and consistency. The 315005P is part of a comprehensive portfolio trusted by engineers and technicians worldwide. Installation is straightforward: simply insert the fuse into the holder or PCB pads, ensuring proper orientation and secure contact. Regular inspection of the glass body for discoloration or cracks is recommended to verify integrity. For high-volume applications, Littelfuse offers custom forming dimensions and packaging options to streamline procurement and assembly workflows. Whether deployed in industrial control systems, test equipment, or power distribution units, the Littelfuse 315005P SLO-BLO® Glass Axial 5A fuse delivers dependable circuit protection with long-term reliability. Its combination of UL certification, environmental compliance, and proven performance makes it a preferred choice for professionals who demand both safety and efficiency in their protection strategies. Trust Littelfuse to safeguard your critical electronics with components built to meet the demands of modern industrial environments.
  • 5A current rating for precise circuit protection
  • 3AG glass axial lead design for easy PCB integration
  • UL Standard 248-14 compliant for safety and reliability
  • RoHS-compliant and lead-free construction for environmental compliance
  • SLO-BLO® slow-blow characteristic prevents nuisance tripping from transient loads

Specifications

Amperage Rating
90 Amps
Application
Protection of Semiconductors
Brand Name
Littelfuse
Connection Type
Axial Lead
Current Rating
5 A
Material
Glass
Mounting Type
Through-Hole
Series
SLO-BLO
Size
3AG
Special Features
Very-Fast Acting
Standard
UL Recognized
Sub Brand
POWR-GARD L50S Series
Type
Semiconductor Fuse
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9F61 Size B Clips 1.6in

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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.