Littelfuse 272.002 - 272S VERY FAST ACTING MICRO FUSE .002A. Developed originally for the U.S. Space Program, MICRO™ fuse provides reliability in a compact design. The MICRO™ fuse is available in plug–in or radial lead styles and a complete range of ampere ratings from 1/500 to 5A to suit a wide variety of design needs. Features: Military grade available. High breaking capacity. Clear cover option to view fuse element status. Available from very low ampere of 2mA to 5A Plug-in with short or long leads option.
Littelfuse

272.002

Alternate Item Number: 0272.002V

UPC: 079458540277


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Minimum Qty: 5

Multiplier: 5

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Overview

The Littelfuse 272.002 MICRO™ fuse (SKU: 272.002) is a 0.002A (2mA), very fast-acting fuse designed for ultra-precise overcurrent protection in sensitive electronic circuits. Originally developed for the U.S. Space Program, this fuse delivers military-grade reliability in a compact MICRO™ series package. The 272.002 model features a current rating of 0.002A with instantaneous response to fault conditions, making it ideal for applications where even minor overcurrent events must be interrupted immediately to prevent damage. Key specifications include a series-rated breaking capacity for reliable performance under fault conditions. The fuse is available in plug-in or radial lead configurations, with short or long lead options for flexible PCB mounting. A clear cover option enables visual inspection of the fuse element status, simplifying maintenance and troubleshooting. Military-grade variants meet MIL-PRF-23419/12 specifications, ensuring operation in harsh aerospace and defense environments. Applications span aerospace/defense (flight control electronics, communication systems), medical devices (pacemakers, surgical instruments), industrial automation (PLCs, sensors), telecommunications (routers, base stations), and consumer electronics (smartphones, IoT devices). The MICRO™ series covers ampere ratings from 2mA to 5A, providing a scalable solution for diverse design needs. Plug-in models insert into compatible holders for easy replacement, while radial lead models solder directly to PCBs for permanent mounting. Trust Littelfuse’s decades of innovation in circuit protection for consistent performance in demanding environments.
  • 0.002A (2mA) current rating for ultra-sensitive circuit protection
  • Very fast-acting response interrupts faults almost instantaneously
  • Plug-in or radial lead mounting options with short/long lead configurations
  • Clear cover for visual inspection of fuse element status
  • Military-grade variants meet MIL-PRF-23419/12 specifications

Specifications

Amperage Rating
.002 Amps
Application
electronic equipment & appliances
Brand Name
Littelfuse
Special Features
High breaking capacity
Standard
CSA Approval
Sub Brand
272 Series
Type
Plug In
125V ALARM FUSE W/LENS ROHS H-PACK 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481002.HXLP

125V ALARM FUSE W/LENS ROHS H-PACK 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
FUSE 250V FA 3AB PB-FREE H-PACK 2A. 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.

H332002P

FUSE 250V FA 3AB PB-FREE H-PACK 2A. 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.
FUSE 125V ALARM FUSE BULK H-PACK 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481002.H

FUSE 125V ALARM FUSE BULK H-PACK 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
SCREW TERMINAL FUSE BLOCK 2A. Rated for currents up to 15 amperes (units with spring brass clips) of up to 30 amperes (berylium copper clips).

359002

SCREW TERMINAL FUSE BLOCK 2A. Rated for currents up to 15 amperes (units with spring brass clips) of up to 30 amperes (berylium copper clips).
FUSE 250V FA 3AB PB-FREE M-PACK 2A. 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.

0332002.MXP

FUSE 250V FA 3AB PB-FREE M-PACK 2A. 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.
250V PICO FUSE 2A. 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.

263002L

250V PICO FUSE 2A. 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.
250V PICO FUSE BULK M-PACK 2A. 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.

0263002.MXL

250V PICO FUSE BULK M-PACK 2A. 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.
FUSE 125V PICO II SB TERM ROHS 2A. 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.

473002L

FUSE 125V PICO II SB TERM ROHS 2A. 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.
FUSE 125V FM02A MIL MICRO FUSE 2A. Developed originally for the U.S. Space Program, MICRO™ fuse provides reliability in a compact design. The MICRO™ fuse is available in plug–in or radial lead styles and a complete range of ampere ratings from 0.002A to 5A to suit a wide variety of design needs. Features: Military grade available. High breaking capacity. Clear cover option to view fuse element status. Available from very low ampere of 0.002A to 5A. Plug-in with short or long leads option. Applications: Printed circuit boards and similar equipment. Electronic components.

274002

FUSE 125V FM02A MIL MICRO FUSE 2A. Developed originally for the U.S. Space Program, MICRO™ fuse provides reliability in a compact design. The MICRO™ fuse is available in plug–in or radial lead styles and a complete range of ampere ratings from 0.002A to 5A to suit a wide variety of design needs. Features: Military grade available. High breaking capacity. Clear cover option to view fuse element status. Available from very low ampere of 0.002A to 5A. Plug-in with short or long leads option. Applications: Printed circuit boards and similar equipment. Electronic components.
FUSE 125V ALARM FUSE 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481002.V

FUSE 125V ALARM FUSE 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
ALARM INDICATING W/PROTEC LENS 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481002.VXL

ALARM INDICATING W/PROTEC LENS 2A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
INDICATING PANEL 344 Round Knob 2.5-7V. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

342004

INDICATING PANEL 344 Round Knob 2.5-7V. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

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.