Littelfuse 473004L - FUSE 125V PICO II SB TERM ROHS 4A. The PICO® II Slo-Blo® Fuse combines time-delay performance characteristics with the proven reliability of a PICO® Fuse. Features: Enhanced inrush withstand. Small size. Wide range of current ratings (375mA - 7A). RoHS compliant. Wide operating temperature range. Low temperature de-rating.
Littelfuse

473004L

Alternate Item Number: 0473004.VXL

UPC: 079458129182


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Overview

The Littelfuse PICO II Slo-Blo Fuse (SKU: 473004L) represents a significant advancement in compact, high-reliability circuit protection for demanding industrial and electronic environments. This fuse expertly blends the time-tested dependability of the PICO® fuse series with enhanced time-delay characteristics, making it an ideal choice for applications requiring robust inrush current withstand capabilities without sacrificing sensitive circuit protection. Engineered for performance and longevity, the PICO II Slo-Blo fuse is designed to safeguard critical components and systems from overcurrent and short-circuit events. At its core, the PICO II Slo-Blo fuse (473004L) offers a 125V voltage rating and a precise 4A current rating, providing dependable protection for a wide array of equipment. Its time-delay functionality is crucial for circuits that experience temporary, high current surges during startup, such as those found in motor controls, power supplies, and various industrial machinery. This feature prevents nuisance tripping, ensuring operational continuity while still offering swift interruption during sustained fault conditions. The enhanced inrush withstand capability directly translates to increased system reliability and reduced downtime. Key features of the Littelfuse PICO II Slo-Blo Fuse include: * **Time-Delay Performance:** Specifically designed to tolerate temporary inrush currents, preventing unnecessary circuit interruptions. * **Enhanced Inrush Withstand:** Superior capability to handle high surge currents common in startup sequences. * **Proven PICO® Reliability:** Leverages the established quality and consistent performance of the Littelfuse PICO® fuse platform. * **Compact Size:** Its small form factor is ideal for space-constrained designs and densely populated circuit boards. * **Wide Current Rating Range:** Available from 375mA to 7A, allowing for precise protection selection across diverse applications. * **RoHS Compliant:** Meets stringent environmental regulations, ensuring suitability for global markets. * **Wide Operating Temperature Range:** Maintains performance integrity across a broad spectrum of ambient temperatures. * **Low Temperature De-rating:** Minimizes performance degradation at lower operating temperatures, ensuring consistent protection. Littelfuse, a globally recognized leader in circuit protection, brings its extensive engineering expertise to the PICO II Slo-Blo fuse. This commitment to quality ensures that each fuse meets rigorous standards for performance and safety. The UNSPSC code 39121623 categorizes this product within the electrical fuses and protectors segment, highlighting its essential role in electrical system design. Professionals across industries such as telecommunications, industrial automation, medical equipment, and consumer electronics rely on Littelfuse products for their unwavering performance. The PICO II Slo-Blo fuse is a testament to this legacy, offering a reliable, efficient, and compliant solution for modern circuit protection needs. Its versatility, combined with its robust construction and advanced features, makes it an indispensable component for engineers and designers seeking to protect their valuable equipment.
  • Time-delay performance for enhanced inrush withstand
  • Proven reliability of the PICO® fuse series
  • Compact size ideal for space-constrained applications
  • Wide range of current ratings available (375mA - 7A)
  • RoHS compliant and wide operating temperature range

Specifications

Application
electronic equipment & appliances
Brand Name
Littelfuse
Current Rating
4 A
Material
Ceramic/Glass
Series
PICO II Slo-Blo
Size
PICO II
Special Features
Wide operating temperature range
Standard
CSA Approval
Sub Brand
473 Series PICO II Slo-Blo
Type
Small Size
Voltage Rating
125 V
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FUSE 250V FA 3AB PB-FREE M-PACK 4A. The 3AB Very Fast-Acting Fuse for protection of Silicon Controlled Rectifiers and similar solid-state devices. Features: Designed to meet UL248-14. RoHS Compliant and Lead-Free. Available in cartridge type only.

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.