Product Announcements


Littelfuse, Inc.

Littelfuse, Inc. has promoted these products:

Littelfuse, Inc. - For protection of power semiconductor devices

Littelfuse POWR-SPEED® PSR Series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices (read more)

Littelfuse, Inc. - High-Speed Square Body Fuses

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid state devices that are typically designed into power conversion and power conditioning equipment. (read more)

Littelfuse, Inc. - SE-330 Series Neutral-Grounding-Resistor Monitors

The Littelfuse SE-330 Series Neutral-Grounding-Resistor (NGR) Monitors have been enhanced. Detailed information can be found on the linked Product Change Notification document. (read more)

Littelfuse, Inc. - Expanding capacity for customelectrical equipment

For the past 40 years, Littelfuse Startco has been known for its rugged protection relays and custom engineered power centres for the potash industry. During this time, the company has designed and manufactured over 5,000 custom electrical units. While this is an amazing statistic by industry standards, they will not be slowing down any time soon. In fact, this past spring, the company r... (read more)

Littelfuse, Inc. - Relay Saves Plant from Catastrophic Damage

Littelfuse Arc-Flash Relay Saves Plant from Catastrophic Damage

Learn how one customer narrowly avoided nearly $1 million in damages and months of downtime. (read more)

Littelfuse, Inc. - Safe Fuse for Hazardous Locations: PICO® 259-UL913

The Littelfuse PICO® 259-UL913 Series Intrinsically Safe Fuse is the first Fuse certified under the latest revision of the UL 913 Standard. This range of encapsulated, hermetically sealed fuses are ideal for 125V applications in the oil, gas, mining, chemical, pharmaceutical, and food/beverage processing industries (read more)

Littelfuse, Inc. - TPSMA6L - Surface Mount, 600W

Littelfuse TPSMA6L Series of Transient Voltage Suppression (TVS) Diodes can provide secondary transient voltage protection from transients induced by load dump and other transient voltage events for sensitive electronics. (read more)

Littelfuse, Inc. - Industry-Leading Protection in Solar String Apps

The Littelfuse SPFI solar fuse series has been engineered to integrate into an in-line assembly within a wire harness. The fuse provides photovoltaic (PV) protection that meets UL 2579 for PV applications. The SPFI is available in multiple ampere ratings to add flexibility to new designs and can be electrically insulated by either overmolding or using heat-shrink. The SPFI series adds a... (read more)

Littelfuse, Inc. - Water-proof and dust-proof fuse holder
  • Waterproof and dust-proof – can be mounted just about anywhere that suits your application
  • Designed for high current loads and harsh conditions making it excellent for near-the-battery applications
  • Can be configured with 2 or 3 MIDI® fuses
  • M5 threaded bolts and cover seal included; cable seals optional
(read more)
Littelfuse, Inc. - Compact, easy-to-install, cylindrical sensor

Compact, easy-to-install, cylindrical sensor can switch up to 300Vdc @10W (read more)

Littelfuse, Inc. - New! SMCG-HR & SMCG-HRA Series TVS Diodes

TVS devices are ideal for the protection of I/O Interfaces, VCC bus and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications.

New! SMCG-HR & SMCG-HRA Series TVS Diodes

Upscreened and sorted for aerospace and other high-rel applications. (read more)

Littelfuse, Inc. - Robust Symmetrical ESD protection

These robust diodes can safely absorb repetitive ESD strikes up to the maximum level specified in the IEC61000-4-2 international standard without performance degradation. The back-to-back configuration provides symmetrical ESD protection for data lines when AC signals are present. (read more)

Littelfuse, Inc. - Protection against fast rising transients

Littelfuse CG6 series GDT is a miniature surface-mount device with a 3kA 8/20 surge rating. This ITU-T K.12 Class 1, Type 1 GDT provides protection against fast rising transients typically caused by nearby lightning events. (read more)

Littelfuse, Inc. - Automotive Applications in Modern Vehicles

From ultra low capacitance Diode Arrays for ESD protection of high speed signal lines including CAN bus, USB 2.0 and BroadR Reach, to our high surge formulation AUMOV Varistors, Littelfuse has the solutions and expertise to match your technical and application challenges. (read more)

Littelfuse, Inc. - Overvoltage protection for sensitive electronics

The SLD8S Series is SMTO-263 packaged with leaded modification and is designed to provide precision overvoltage protection for sensitive electronics (read more)

Littelfuse, Inc. - Hi Power TVS design in compact SMT package

LTKAK10 in SMTO-218 package provide the enhanced quality, easy manufacturing and compact mechanical design than current AK TVS families. (read more)

Littelfuse, Inc. - Innovative package (patent pending) design


  • Cell phone base station
  • Industrial TVSS
  • Railway (railroad) trackside signaling and control cabinets
  • Defense & Avionic
  • Power grid & distribution system
(read more)
Littelfuse, Inc. - Littelfuse AF0500 Arc-Flash Relay

The Littelfuse AF0500 Arc-Flash Relay delivers a flexible design and unrestricted scalability making it ideal for retrofits in electrical equipment. The AF0500 offers:

- Savings of 90% over installation of arc-resistant switchgear
- Two internal trip paths for added reliability
- Tie breaker and zone tripping capabilities; one relay has the ability to trip two zones (read more)

Littelfuse, Inc. - New AF0100 Arc-Flash Relay

The new Littelfuse AF0100 Arc-Flash Relay is mighty yet small. The AF0100 is the third in a series of arc-flash relays and is 30 percent smaller than previous models. Measuring just 90 mm high x 128 mm wide x 60 mm deep and both DIN-rail and surface-mountable, the AF0100 can be retrofitted easily into existing switchgear or pre-installed in new equipment with little or no configuration. (read more)

Littelfuse, Inc. - MP8000 Bluetooth(r) Enabled Overload Relay

Introducing the Revolutionary New Littelfuse MP8000 Bluetooth® Enabled Overload Relay. This smart, universal relay can communicate directly with your smart phone via Bluetooth®. No need to open the control panel. Monitor and control unlimited relays through the Littelfuse App on the smartphone you already own from a safe distance. (read more)

Littelfuse, Inc. - True Surface Mount High Power

Littelfuse specializes in transient voltage suppression (TVS) diodes, which are designed to protect semiconductors from damage due to transient voltages (read more)

Littelfuse, Inc. - Finding Relays is Easier Than Ever!

Over 1000 MotorSaver, PumpSaver, and SSAC parts have been added to (read more)

Littelfuse, Inc. - Lightning Surge Protection - SR05 Diode Array

Robust Protection for Telecom and Industrial Equipment without Sacrificing Signal Integrity.

Designed for data line interfaces: T1/E1/T3/E3, WAN/LAN, ISDN S/T, video, etc. (read more)

Littelfuse, Inc. - 1ST Fuse UL913 Certified

The Littelfuse PICO® 259-UL913 Series Intrinsically Safe Fuse is the first Fuse certified under the latest revision of the UL 913 Standard. This range of encapsulated, hermetically sealed fuses are ideal for 125V applications in the oil, gas, mining, chemical, pharmaceutical, and food/beverage processing industries. The PICO® 259-UL913 Series Fuse and its encapsulant prevent heat... (read more)

Littelfuse, Inc. - Kxxx1GL Series Multipulse™ SIDAC

New Generation Multipulse™ SIDAC Devices from Littelfuse Optimized for Latest Metal-Halide Lamp Ignition Circuit Designs (read more)

Littelfuse, Inc. - PLEDxSW Open LED Protector

Open LED Protector from Littelfuse Enhances Reliability of LED Strings

White molded body is less noticeable in indoor fixtures, enhances light engine efficiency (read more)

Littelfuse, Inc. - Minimize Arc-Flash Hazards & Potentially Lower PPE

Minimize Arc-Flash Hazards and Potentially Lower PPEThis workbook from Littelfuse guides you through a preliminary calculation of the reduction of incident energy by applying the Littelfuse PGR-8800 Arc-Flash Relay. It provides a typical scenario in three-phase systems, per IEEE 1584calculations. Download your copy to quantify the impact on your system today! (read more)

Littelfuse, Inc. - Introducing POWR-SPEED™ Fuses!

Littelfuse high-speed (semiconductor) fuses protect critical power electronics from overcurrents that may cause damage to your equipment. High-speed fuses are reliable, very fast-acting products that can reduce the amount of short circuit current and improve the life of your power semiconductor devices. (read more)

Littelfuse, Inc. - Fast-Acting High-Speed Fuses

High-Speed Fuses are designed to protect today’s equipment and systems, and are manufactured with Littelfuse-developed technology that sets tomorrow’s standards for accuracy, consistent quality, reliability & predictable performance. These certified high-speed fuses are optimized for performance & efficiency to better protect your critical power semiconductors against... (read more)

Littelfuse, Inc. - New Circuit Protection Products Now Available

Littelfuse now offers an expanded presence in the automotive electronics and battery end markets with new technologies. (read more)

Littelfuse, Inc. - Fuses for Semiconductor Device Protection

Littelfuse Introduces High-Speed Fuses for Semiconductor Device Protection (read more)

Littelfuse, Inc. - What kind of fuse kits do you need?

The most popular fuses designed to meet the needs of professionals. (read more)

Littelfuse, Inc. - Upscreened High Reliability TVS Diodes

Littelfuse Introduces Six Series of Upscreened High Reliability TVS Diodes Suitable for Aerospace Applications as Standard Products (read more)

Littelfuse, Inc. - The enhanced LV UltraMOV™ Varistor Series

Littelfuse Expands Popular LV UltraMOV™ Varistor Series to Serve Applications with Higher DC Voltage and Surge Requirements (read more)

Littelfuse, Inc. - 5x20mm Ceramic Body Time-Lag Cartridge Fuse


  • Higher I2t and 1.5kA surge withstand capability
  • Compact 5x20mm footprint
  • Operating temperature range from -55°C to 125°C


  • Digital Display Systems
  • Digital Signage
  • White Goods
  • Power Supply Units
(read more)
Littelfuse, Inc. - Smaller Footprint Three-Terminal GDT

Smaller Footprint Three-Terminal GDT from Littelfuse Protects Communications Equipment from Fast-Rising Transients

Ultra-low capacitance and high surge energy withstanding provide more protection from lightning damage (read more)

Littelfuse, Inc. - Five-Channel, Bidirectional TVS Diode Array

TVS Diode Array from Littelfuse Provides Five Channels of ESD Protection in Footprint that Typically Contains Only One


  • Wearable technology
  • Smartphones
  • Mobile phones
  • Touchscreen controllers
  • SIM card interfaces
(read more)
Littelfuse, Inc. - 277V Fuse for Explosive Environments

First 277V Fuse Certified to UL913 Standard for Use in Explosive Environments
Designed for higher voltage applications in electrical equipment used in hazardous locations (read more)

Littelfuse, Inc. - SM - 400W TVS Diode Arrays

New TVS Diode Array Offers More Protection from Surges, ESD than Similar Components (read more)

Littelfuse, Inc. - Littelfuse Announces Acquisition of SymCom

CHICAGO, January 6, 2014 — Littelfuse, Inc. (NASDAQ:LFUS), today announced that it has completed the acquisition of SymCom, Inc. Headquartered in Rapid City, South Dakota, SymCom provides overload relays and pump controllers primarily to the industrial market. The company has sales of approximately $23 million and employs approximately 170 associates. (read more)

Littelfuse, Inc. - SP4020 - 2.5pF, 30A Discrete TVS Diode

Single Channel TVS Diode Array (SPA® Diodes) Provides 2x Higher Power Handling and 16% Lower Capacitance (read more)

Littelfuse, Inc. - Permanently Connected Special-Purpose GFCI

The SB6000 series Industrial Shock-Block is the first permanently connected special-purpose GFCI that is designed to meet the UL 943C requirements. UL 943C Class C and Class D with fixed 20-mA trip level extend GFCI protection beyond the Class A limitations and are more appropriate for industrial applications. According to UL 943C, special-purpose GFCI’s can be used in the followin... (read more)

Littelfuse, Inc. - SIDACtor® Low Capacitance Thyristor

Littelfuse SIDACtor® Provides 45% Lower Capacitance than Clamping Devices (read more)

Littelfuse, Inc. - SPFI Series - 1000 Vdc - In-Line Solar Fuse

The Littelfuse SPFI solar fuse series has been engineered to integrate into an in-line assembly within a wire harness. The fuse provides photovoltaic (PV) protection that meets UL 2579 for PV applications. (read more)

Littelfuse, Inc. - Enhanced ESD Protection

...for High Speed USB 3.0 and HDMI Chipsets (read more)

Littelfuse, Inc. - Space Saving Fuse Blocks

Littelfuse POWR-GARD introduces the LF Series of fuseblocks that provide built-in, blown-fuse indication while simplifying ease of use with convenient DIN-rail mounting connections and universal mounting holes. (read more)