Littelfuse 263003L - 250V PICO FUSE 3A. The PICO® II 263 Series Fuse is a specially designed axial leaded fuse that achieves a 250V rating in a small package. Features: Very fast-acting. Small size. Wide current rating range (62mA- 15A). RoHS compliant. Halogen-free available. Wide operating temperature range. Low temperature rerating. 250V rating.
Littelfuse

263003L

Alternate Item Number: 0263003.VXL

UPC: 079458129045


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Overview

The Littelfuse 263003L PICO II 263 Series Fuse is a high-performance axial leaded fuse engineered for applications requiring precise and reliable overcurrent protection in compact form factors. Designed to deliver a 250V rating within a small package, this fuse is ideal for space-constrained designs where performance cannot be compromised. With a 3A current rating, the 263003L ensures very fast-acting response, making it suitable for protecting sensitive electronics and critical circuits from transient surges, overloads, and short circuits. The PICO II 263 Series is part of Littelfuse’s trusted PICO fuse family, renowned for its reliability and versatility across industrial, automotive, and consumer electronics applications. Its axial lead configuration simplifies installation in PCB layouts and chassis-mounted designs, offering engineers flexibility in circuit design without sacrificing protection. The fuse’s wide current rating range (62mA–15A) allows it to serve multiple roles—from protecting low-power signal lines to safeguarding high-current power rails—making it a versatile choice for diverse applications. Key features of the 263003L include RoHS compliance and halogen-free options, aligning with modern environmental and regulatory standards. This ensures compatibility with global markets and supports sustainability initiatives in product design. The fuse operates effectively across a broad temperature range, with low temperature rerating to maintain consistent performance in extreme environments, from automotive under-hood applications to outdoor industrial equipment. Professionals select the Littelfuse 263003L for its combination of compact size, high voltage rating, and fast-acting response. Typical applications include power supplies, battery management systems, motor controls, and telecom infrastructure, where reliable protection is critical to preventing downtime and equipment damage. Its small footprint also makes it a preferred choice for miniaturized consumer electronics, such as smartphones, wearables, and IoT devices, where board space is at a premium. Littelfuse’s reputation as a leader in circuit protection solutions is built on decades of innovation and reliability. The PICO II 263 Series exemplifies this commitment, offering engineers a dependable component backed by comprehensive testing and global support. Whether for prototyping or high-volume production, the 263003L delivers the performance and peace of mind required in today’s demanding applications.
  • 250V voltage rating in a compact axial leaded package
  • 3A current rating with very fast-acting protection
  • RoHS compliant with halogen-free options available
  • Wide operating temperature range with low temperature rerating
  • Axial lead design for easy PCB and chassis installation

Specifications

Amperage Rating
3 AMPS
Application
electronic equipment & appliances
Brand Name
Littelfuse
Connection Type
Axial Leads
Current Rating
3 A
Material
Ceramic/Glass
Mounting Type
Axial
Mounting Type
PCB/Chassis Mounted
Series
PICO II 263
Series
PICO II 263 Series
Size
PICO
Size
Axial leaded
Special Features
Wide operating temperature range
Standard
CSA Approval
Sub Brand
263 Series PICO II
Type
Small Size
Voltage Rating
250 V
Miniature fuse GSF-V - Time-Delay 250VAC 1.25A Size 5x20 Soldered connection

GSF-V1-1/4

Miniature fuse GSF-V - Time-Delay 250VAC 1.25A Size 5x20 Soldered connection
250V PICO FUSE BULK M-PACK 4A. The PICO® II 263 Series Fuse is a specifically designed axial leaded fuse that achieves a 250V rating in a small package. Features: Very fast-acting. Small size. Wide current rating range (62mA- 15A). RoHS compliant. Halogen-free available. Wide operating temperature range. Low temperature rerating. 250V rating.

0263004.MXL

250V PICO FUSE BULK M-PACK 4A. The PICO® II 263 Series Fuse is a specifically designed axial leaded fuse that achieves a 250V rating in a small package. Features: Very fast-acting. Small size. Wide current rating range (62mA- 15A). RoHS compliant. Halogen-free available. Wide operating temperature range. Low temperature rerating. 250V rating.

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.