Littelfuse Inc. 0154008.DR

Product Summary Littelfuse 0154008.DR Fuse and Holder Combination

The Littelfuse 0154008.DR is a board-mount fuse assembly designed to provide effective overcurrent protection for electronic circuits operating at up to 8 A and 125 V AC or DC. As part of the Littelfuse OMNI-BLOK® family, specifically the 154/154T/154L/154TL Series, this assembly integrates a miniature Nano2® surface mount fuse with a purpose-built holder, engineered for efficient installation and reliable performance in demanding environments. The 0154008.DR is delivered in a two-terminal surface-mount device (2-SMD) form factor with square-end block configuration, making it ideal for high-density printed circuit board layouts. Its cartridge style is excluded, and it is intended for use where a separate holder enables easy fuse replacement.

Main Attributes and Performance Specifications of 0154008.DR

The 0154008.DR fuse assembly is distinguished by several engineering-focused attributes:

Miniature footprint and 2-SMD package enable space-saving circuit designs and automated pick-and-place assembly.

The system includes a Nano2® surface-mount fuse installed in a robust, heat-resistant holder rated UL94 V-0, capable of withstanding lead-free solder reflow up to 260°C.

Wide current rating availability, with the 0154008.DR model specifically rated at 8 A. Compatible fuse types in the OMNI-BLOK® series offer both Fast-acting (62 mA–10 A) and Slo-Blo® (375 mA–5 A) protection options for application-specific requirements.

Holder accommodates a range of Nano2® fuses, enhancing future flexibility and facilitating easy fuse exchange without subjecting the PCB to high soldering temperatures.

Recognized under UL/CSA/NMX 248-1, UL/CSA/NMX 248-14, and UL/CSA/NMX 4248-1 standards for safety and reliability, providing international regulatory acceptance.

RoHS-compliant and halogen-free materials contribute to environmentally responsible product selection.

Use Cases and Common Application Environments for 0154008.DR

Littelfuse 0154008.DR is particularly suited for engineers seeking reliable circuit protection in applications such as industrial controls, consumer electronics, telecommunications equipment, and battery-powered devices. Its SMD form factor and pre-assembled fuse and holder streamline integration into automated assembly lines, allowing rapid installation and straightforward replacement. Use cases include designers implementing overcurrent safeguards for processor power rails, motor controllers, or input/output interface protection, where serviceability and minimal PCB disturbance during maintenance are priorities.

Mounting Instructions and Recommended Soldering Conditions for 0154008.DR

Designed to facilitate single-step PCB installation, the 0154008.DR and its OMNI-BLOK® fuse holder allow for tape-and-reel packaging suitable for automated SMT processes. The UL94 V-0 fuse holder provides 260°C reflow compatibility, ensuring integrity under lead-free soldering cycles and minimizing risk of material degradation. Engineers should reference Littelfuse's recommended soldering profiles to ensure reliable mechanical and electrical assembly. Replacement fuses can be switched without resoldering, greatly simplifying field maintenance and troubleshooting procedures in the event of overcurrent events.

Certifications and Environmental Standards Compliance for 0154008.DR

The Littelfuse 0154008.DR fuse assembly is manufactured to meet stringent regulatory standards, carrying recognition to UL/CSA/NMX 248-1, UL/CSA/NMX 248-14, and UL/CSA/NMX 4248-1. This ensures international compliance for both US and Canadian markets, along with global acceptance for industrial and consumer devices. The product’s RoHS compliance and halogen-free material construction further facilitate its use in systems targeting low environmental impact and adherence to global restriction of hazardous substances directives.

Alternative or Substitute Models Comparable to 0154008.DR

When evaluating replacements or equivalents for the Littelfuse 0154008.DR, engineers should consider both fuse and holder compatibility as well as required electrical ratings and installation constraints. Within the OMNI-BLOK® fuse holder series, alternate fuses such as the Littelfuse 453, 454, 451, 452, 448, and 449 Series can be selected based on required speed (fast-acting or Slo-Blo®), current rating, and voltage. It's important to verify the end cap metallurgy, as models like the 453 and 454 Series feature silver-plated end caps optimized for solder reflow reliability. For standalone holder requirements, the 01550900M (bulk packaging) or 01550900DR (tape and reel) provide direct compatibility with the Nano2® fuses. For higher ratings, the Littelfuse 155900 UL-recognized fuse (125 V, 10 A) may be appropriate for design upgrades or alternative implementations.

Conclusion

The Littelfuse 0154008.DR fuse and holder assembly delivers a sophisticated, easy-to-install surface mount solution for overcurrent protection in modern electronics. By combining miniaturized form factor, robust safety certifications, and the convenience of tool-less fuse replacement, the 0154008.DR stands out for engineers and procurement professionals seeking high reliability and serviceability. Integrating this device supports streamlined board assembly, flexible fuse selection, and dependable operation in a wide range of industry applications.