Littelfuse, Inc.

  • 8755 West Higgins Road Suite 500 Chicago, IL
    United States of America
  • 1-773-628-1000
  • 1-800-522-7697

Littelfuse products are vital components in virtually every market that uses electrical energy, from consumer electronics to automobiles, commercial vehicles and industrial equipment.

Littelfuse, Inc. Articles

Displaying 1 - 20 of 215
6th May 2021
Photovoltaic fuses provide rugged circuit protection

Littelfuse has announced the 400PV Fuse series, a 2410 size, surface mount design (SMD) circuit protection component that offers low resistance for photovoltaic (PV) applications. The 400PV is specifically designed to address the latest trend in solar roofing by enabling PV shingles that integrate both the shingles with the PV cells while incorporating protection that meets the UL 248-19 standard for PV applications.

15th March 2021
LST Varistors with TMOV for robust surge protection

Littelfuse has introduced the LST Varistor series. Constructed with a proprietary, thermally protected varistor technology (TMOV), developed by Littelfuse, this new varistor incorporates both a built-in thermal disconnect function and electric arc shield. This combination provides additional robust protection to prevent catastrophic failure and fire hazard even under the extreme circumstances of abnormal overvoltage conditions or varistor en...

8th February 2021
Reed relays offer reliable switching of AC and DC loads

Littelfuse has introduced an expanded reed relay product portfolio that extends voltage capabilities to include AC ratings, supports AC or DC loads up to 300 Vdc, and provides input/output isolation voltage 2,500 VRMS. These miniature reed relays are available in single In-line (SIL) and dual-in-line (DIL) packages.

13th July 2020
Littelfuse PLA172P 800V solid state relay launched

Littelfuse has announced the PLA172P OptoMOS Relay, an 800V normally-open single-pole 6-pin solid-state relay (SSR). It is the first solid-state relay in the Littelfuse product portfolio that comes with guaranteed electrical parameters at 105°C ambient operating temperature.

5th June 2020
Knowledge centre helps prevent arc-flash hazards

Littelfuse has introduced a new arc-flash knowledge centre online for engineers, electricians, maintenance workers, and others creating a safer electrical environment. The resource portal helps workers protect critical infrastructure by providing arc-flash information on causes, mitigation and incident energy calculations as well as white papers, videos and case studies.

7th May 2020
Li-ion battery protectors to guard against overcurrent

Littelfuse has announced the ITV Series, a three-terminal, surface mountable li-ion battery protector designed to guard against the damage caused by both overcurrent and overcharging.

7th April 2020
Solar fuses offer higher amperage in a streamlined design

Littelfuse has announced the expansion of its SPXI series in-line solar fuses to include 35 to 60 amperage models. Designed to integrate into in-line assemblies within a wire harness, these 1,500V DC solar fuses protect photovoltaic (PV) installations from overloads and short circuits to minimise damage to solar panels.

15th January 2020
Accelerate the design cycles of SiC-based power converters

Littelfuse has announced the Gate Drive Evaluation Platform (GDEV). The new evaluation platform helps designers evaluate SiC MOSFETs, SiC Schottky diodes, and other peripheral components like gate driver circuitry, so that they can better understand how silicon carbide technologies will behave in converter applications under continuous operating conditions.

10th January 2020
High-temperature thyristors improve thermal management

Littelfuse has announced an additional five series of high-temperature Alternistor TRIAC switching thyristors. The thyristors are designed for use as semiconductor switches in appliances and equipment powered by line AC voltages up to 250VRMS.

13th December 2019
Differential data lines use low capacitance TVS Diode Arrays

A new series of low capacitance TVS Diode Arrays (SPA Diodes) has been introduced by Littelfuse. The series is optimised to protect high speed differential data lines from ElectroStatic Discharge (ESD), Cable Discharge Events (CDE), Electrical Fast Transients (EFT), and lightning-induced surges, keeping network communications reliable by safeguarding signal integrity.  

14th November 2019
Dual channel PPTC with small footprint protects from overcurrents

Littelfuse has announced a new series of 250V Telecom PPTCs designed to help make telecom and network equipment more reliable. The TSM250-130 series protects against power cross and induced power surges as defined in ITU, Telcordia GR1089 and IEC 62368-1. 

25th July 2019
Electric Vehicle charging infrastructure

Faster charging of electric vehicles demands efficient power delivery while keeping people safe. This video can help you to improve the efficiency, reliability and safety of your EV charging system with Littelfuse products.

10th June 2019
Temperature indicators with improved prevention of overheating

Global manufacturer of leading technologies in circuit protection, power control and sensing, Littelfuse, has announced an expanded PolySwitch setP series of digital temperature indicators, designed to protect USB Type C and USB power delivery charging cables from dangerous overheating. 

21st May 2019
Littelfuse Type 2 surge protection devices

Littelfuse Type 2 Surge Protection Devices for branch circuits safeguard components from transient overvoltage or surges by limiting the fault current to a load or the unit being protected.

29th April 2019
TVS diode arrays provide ultra-low capacitance protection

It has been announced that Littelfuse has introduced two series of bidirectional TVS Diode Arrays (SPA Diodes) designed to protect ultra high speed consumer electronics interfaces from damaging electrostatic discharge (ESD) in applications where PCB layout is especially challenging. 

22nd March 2019
SiC schottky diodes with current ratings from 6-40A at APEC 2019

Littelfuse has introduced two additions to its expanding line of second-generation, 650V, AEC-Q101-qualified SiC Schottky Diodes. Both series offer power electronics system designers a variety of performance advantages over traditional silicon-based devices, including negligible reverse recovery current, high surge capability, and a maximum operating junction temperature of 175°C. This makes them suitable for applications in which improv...

8th March 2019
Protection thyristor safeguards CVBS signal lines

It has been announced that Littelfuse has launched the PxxxxS4xLRP Series SIDACtor Protection Thyristor, a robust solution for protecting Composite Video Blanking Sync (CVBS) signal lines and ports from damaging overvoltage transients. The combination of six volt operating voltage and 100A 5/310µs surge peak current capability and a low junction capacitance rating make the P0080S4BLRP suited for protecting a wide range of equipment needs da...

9th February 2019
SiC MOSFETs respond to need for fast charge

  Understanding the structure of SiC MOSFETs helps engineers develop appropriate systems, say Levi Gant, Littelfuse and Sujit Banerjee, Monolith Semiconductor

10th January 2019
Hybrid protection module guards from sustained overcurrents

The first of a series of bidirectional TVS Diode Arrays (SPA Diodes) designed to protect high-end consumer and wearable electronics from damaging ESD-generating events have been introduced by Littelfuse. The SP1333-01UTG, the first TVS Diode Array in the SP1333 Series, with a breakdown voltage 3.3V, incorporates back-to-back diodes fabricated using a proprietary silicon avalanche technology. 

19th November 2018
SIP relay has 4000V isolation for high performance switching

  Offering twice the load current of its most popular power relay, the CPC1984Y is a 600V, normally open power SIP relay, rated for up to 1A DC/1A rms continuous load current.

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