Littelfuse 0297004.U - AUTOMO MINI BLADE TYPE 500-PACK 4A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.
Littelfuse

0297004.U

UPC: 079458090697

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Minimum Qty: 500

Multiplier: 500

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Overview

The Littelfuse MINI® Blade Fuse (SKU: 0297004.U) is a high-performance automotive circuit protection solution engineered to meet the rigorous demands of modern vehicle electrical systems. As the automotive industry continues to advance with increased electrical complexity—from advanced driver-assistance systems (ADAS) to infotainment and electrification—the MINI® Blade Fuse provides a critical safeguard against electrical overloads and short circuits. This 4-ampere fuse is part of Littelfuse’s globally recognized MINI® series, which has become the de facto standard for circuit protection in passenger vehicles, commercial fleets, and off-highway equipment worldwide. Designed with Littelfuse’s patented miniature blade technology, this fuse delivers unparalleled space efficiency without compromising performance. Its compact profile enables higher circuit density in tight electrical panels, a crucial advantage as automotive manufacturers integrate more electronic control units (ECUs) and sensors into modern designs. The MINI® Blade Fuse is engineered to operate reliably in high-temperature environments—common in engine compartments, under-hood applications, and near exhaust systems—where traditional fuses may degrade or fail prematurely. This thermal resilience ensures consistent protection even under extreme operating conditions, reducing the risk of component damage, fire hazards, and costly downtime. The 500-pack configuration makes the MINI® Blade Fuse an ideal choice for automotive OEMs, repair shops, and aftermarket installers who require bulk quantities for production lines, service bays, or fleet maintenance programs. Each fuse in the series is precision-calibrated to interrupt fault currents quickly and safely, providing precise current limitation to protect sensitive electronics. The blade-style terminals ensure secure, low-resistance connections in fuse blocks and panels, minimizing voltage drop and ensuring consistent performance across the vehicle’s electrical system. Littelfuse, a leader in circuit protection solutions for over a century, has established itself as a trusted partner for automotive manufacturers and technicians. The company’s MINI® Blade Fuse line is backed by rigorous testing and compliance with international automotive standards, including ISO/TS 16949 and AEC-Q200, ensuring compatibility with a wide range of vehicle platforms. Whether used in original equipment manufacturing (OEM) applications, collision repair, or custom automotive projects, these fuses offer a balance of reliability, durability, and ease of installation. Professionals selecting circuit protection components must consider factors such as current rating, voltage rating, interrupting rating, and environmental resilience. The Littelfuse MINI® Blade Fuse 4A excels in all these areas, with a 32V DC voltage rating and an interrupting rating sufficient for most automotive applications. Its blade-style design is compatible with standard MINI® fuse blocks and holders, making it a drop-in replacement for many existing systems. For technicians, the color-coded 4A rating (blue) ensures quick identification during installation or troubleshooting, reducing the risk of misapplication. In addition to its technical advantages, the MINI® Blade Fuse is supported by Littelfuse’s extensive global distribution network and technical support resources. The company provides comprehensive documentation, including datasheets, application notes, and installation guides, to assist engineers and technicians in optimizing their circuit protection strategies. For automotive professionals seeking a high-quality, space-efficient, and thermally robust fuse solution, the Littelfuse MINI® Blade Fuse 4A (500-pack) is an unmatched choice that delivers performance, reliability, and peace of mind.
  • Patented miniature blade design for high circuit density in tight spaces
  • Engineered for reliable operation in high-temperature automotive environments
  • 500-pack bulk quantity ideal for OEMs, repair shops, and fleet maintenance
  • 32V DC voltage rating with precise 4A current limitation for sensitive electronics
  • Color-coded (blue) for quick identification and reduced misapplication risk

Specifications

Amperage Rating
4 A
Application
Automotive
Brand Name
Littelfuse
Color
Blue
Connection Type
Blade Terminal
Current Rating
4 A
Material
Plastic
Series
MINI Blade
Size
Mini Blade
Standard
UL 248 Special Purpose Fuses
Sub Brand
MINI Series
Voltage Rating
32 V DC
Package Dimensions (L x W x H)
3 IN x 1 IN x 2 IN
Package Dimensions (L x W x H)
7.62 cm x 25.4 mm x 5.08 cm
Package Weight (Imperial)
2.000 L
Package Weight (Metric)
0.907 kg
FUSE - ATO SMARTGLOW 12VDC 5A 1000 PC. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.

0ATO005.MXGLO

FUSE - ATO SMARTGLOW 12VDC 5A 1000 PC. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.
SMARTGLOW MINI BLADE BOX 3A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

0MIN003.VXGLO

SMARTGLOW MINI BLADE BOX 3A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.
AUTOMO MINI BLADE TYPE 50-PACK 3A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

0297003.L

AUTOMO MINI BLADE TYPE 50-PACK 3A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.
FAST-ACTING AUTOMO BLADE L-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287003.L

FAST-ACTING AUTOMO BLADE L-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
FAST-ACTING AUTOMO BLADE U-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287003.U

FAST-ACTING AUTOMO BLADE U-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
FAST-ACTING AUTOMO BLADE P-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287003.PXCN

FAST-ACTING AUTOMO BLADE P-PACK 3A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
FAST-ACTING AUTOMO BLADE U-PACK 5A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287005.U

FAST-ACTING AUTOMO BLADE U-PACK 5A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
FAST-ACTING AUTOMO BLADE U-PACK 2A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287002.U

FAST-ACTING AUTOMO BLADE U-PACK 2A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
FUSE - ATO SMARTGLOW 12VDC 7.5A 100 PC. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.

0ATO07.5HXGLO

FUSE - ATO SMARTGLOW 12VDC 7.5A 100 PC. The ATO® Fuse was designed and patented by Littelfuse in 1976 and set the standard for automotive circuit protection. It features industry standard color coding to indicate amperage rating. Smart Glow fuses are innovative automotive style fuses (ATO, Mini, Maxi and glass tube) that feature an indicator light that glows when the fuse is blown, saving time to troubleshoot an open circuit.
SMARTGLOW MINI BLADE BOX 10A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

0MIN010.VXGLO

SMARTGLOW MINI BLADE BOX 10A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.
FAST-ACTING AUTOMO BLADE P-PACK 5A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.

0287005.PXCN

FAST-ACTING AUTOMO BLADE P-PACK 5A. Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original equipment circuit protection standard for foreign and domestic automobiles and trucks. Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage electronic applications.
AUTOMO MINI FAST-ACTING BLADE 4A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

MIN004

AUTOMO MINI FAST-ACTING BLADE 4A. The MINI® Fuse is quickly becoming the new standard for vehicle circuit protection throughout the world. Its miniature design, patented by Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in adverse environments makes the MINI® Fuse the recommended choice for protection.

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.