Company News

Littelfuse, Inc.

8755 W. Higgins Rd., Suite 500, Chicago, IL, 60631, USA

  • 800-522-7697

Latest New Product News from
Littelfuse, Inc.

Electronic Components & Devices

Thyristor Power Control Device affords design flexibility.

May 31, 2013

When coupled with capacitor and transformer, Kxxx1GL Series Multipulse™ SIDAC generates high voltage pulses required to ignite metal-halide lamps. Product offer designers of metal-halide lamp ignition circuits advantages of lower switching loss for higher pulse voltages, improved tolerance for input voltage variations, and longer pulse durations. Designed for use in 220–240 Vac line... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diode Array protects data lines from transients.

Apr 12, 2013

With dynamic resistance of 0.3 Ω, max clamping voltage of 18 V, and capacitance of 6 pF from I/O to GND, SR05 Series protects telecommunication and industrial equipment against ESD and lightning-induced surge events. Each channel or I/O pin can safely absorb up to 25 A and repeated ESD strikes without performance degradation. Typical applications include protecting T1/E1/T3/E3 lines, Ethernet... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diode Arrays protect telecom lines from lightning surges, ESD.

Apr 02, 2013

Integrating low capacitance steering diodes with additional zener diode, SRDA05 Series protects telecommunications data lines against ESD and high surge events. Typical applications include tertiary (IC side) protection for T1/E1/T3/E3 data lines, xDSL interfaces, RS-232/RS-485 interfaces, 10/100/1000 Ethernet interfaces, and video lines. Along with peak pulse power rating of 600 W (8/20... Read More

Electronic Components & Devices, Green & Clean

Radial Leaded Varistors protect against high peak surges.

Mar 15, 2013

Providing high energy absorption capability and resistance to temperature cycling, LV UltraMOV™ Series protects low voltage DC applications against peak surges, including lightning strike interference, system switching transients, and abnormal fast transients from power source. RoHS-compliant units are lead-free, halogen-free, and available with optional phenolic coating. Operating up to... Read More

Electrical Equipment & Systems, Electronic Components & Devices

Thyristor Power Control Devices expand usable range of lighting.

Mar 15, 2013

Alternistor Triac (Q6008LH1LED and Q6012LH1LED Series) and QUADRAC (Q6008LTH1LED and Q6012LTH1LED Series) Thyristor Power Control Devices are designed for use as switch in dimmer circuit to adjust light output of LED bulbs and strings. Products let designers of AC line-based dimmers for LED lighting accommodate range of operating parameters without reducing reliability or dimmer... Read More

Electrical Equipment & Systems

Hermetically Sealed Fuses are certified intrinsically safe.

Mar 14, 2013

Designed for 125 V applications in electrical equipment used in hazardous locations, PICO® 259-UL913 Series is certified under UL913 Safety Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations. Encapsulant prevents heat and sparks from being exposed to hazardous gases or dust in environment. With... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diode Arrays replace multilayer varistors.

Feb 20, 2013

Housed in SOD-323 package that fits 0805 footprint, unidirectional SD05 and bidirectional SD05C protect electronic equipment from damage due to ESD and other transient events. Units offer dynamic resistance of 0.5 and 0.6 Ω, respectively, and can safely dissipate induced surge currents up to 30 A. Unlike ceramic devices, 450 W products are made of silicon diodes which have no inherent wear-out... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diode Array provides ESD protection for sensitive chipsets.

Feb 08, 2013

Optimized for protecting chipsets on high-speed data lines such as USB 3.0 and HDMI, SP3012-06UTG safely absorbs repetitive ESD strikes above maximum level specified in IEC61000-4-2 international standard (Level 4) without performance degradation. Dynamic resistance of just 0.4 Ω lowers clamping voltage for reliable chipset performance in field. Supplied in 3.5 x 1.35 x 0.5 mm µDFN-14... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diodes offer 600 W peak pulse power dissipation rating.

Jan 31, 2013

Housed in DO-221AC package measuring less than 1.1 mm high, TPSMA6L Series can provide secondary transient voltage protection from transients induced by load dump and other events in automotive electronic control units, sensors, entertainment systems, and other high reliability applications. SMA devices are IEC 61000-4-2 and IEC 61000-4-4 compliant as well as AEC-Q101 qualified, which enables use... Read More

Electrical Equipment & Systems

Subminiature Fuse protects against overcurrent conditions.

Jan 24, 2013

With 250 Vac/450 Vdc rating, 808 Series TE5® Fast Acting Subminiature Fuse protects components or internal circuits against overcurrent conditions. Interrupt rating/breaking capacity up to 10 kA @ 450 Vdc ensures fuse will open safely under high fault currents. Available in quantities of 1,000 in tape and ammopack, short lead, and 7.5 mm pitch packaging, this RoHS-compliant, halogen-free, and... Read More

Electrical Equipment & Systems

ESD Protection TVS Diode Array features 0.5 pF capacitance.

Dec 12, 2012

Supplied in µDFN-14 package that measures 3.5 x 1.35 x 0.5 mm, 6-channel SP3012-06UTG offers dynamic resistance of 0.4 Ω and protects sensitive chipsets on high-speed data lines from any external ESD (electrostatic discharge) event. This low-capacitance ESD protection TVS diode array (SPA® Device) safely absorbs repetitive ESD strikes above max level specified in IEC61000-4-2... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diode Arrays protect integrated circuits from ESD.

Dec 12, 2012

Supplied in 0402 package requiring 1.0 x 0.6 x 0.55 mm board space, Models SP1005-01ETG and SP1007-01ETG feature dynamic resistance of 0.7 and 1.9 Ω, respectively. ESD capability of ±30 kV for SP1005-01ETG and ±8 kV for SP1007-01ETG allows manufacturers to claim ESD protection above max rating in IEC61000-4-2 standard, while low leakage current rating of 0.1 µA at 5 V minimizes drain... Read More

Electrical Equipment & Systems

Surface Mount Fuse features 600 Vdc rating.

Dec 11, 2012

Measuring 12.1 x 4.5 x 4.5 mm, Nano2® 485 Series protects high-voltage DC circuits from surge currents and overload conditions. RoHS-compliant device is available with current ratings from 500 mA to 3.15 A and provides interrupting current rating of 100 A at 600 V. Housed in ceramic for operation in ambient temperatures from -55 to 125°C, fuse is suited for high-end PC servers,... Read More

Electronic Components & Devices, Green & Clean

SMD Resettable PPTC Resistors reset automatically.

Dec 11, 2012

Available in sizes as small as 0402, POLYFUSE® LoRho™ SMT Resettable PPTC (Polymer Positive Temperature Coefficient) resistors provide overcurrent protection against fault current surges by limiting electrical current flowing through device. Automatic reset minimizes maintenance, and response time ensures secure protection for sensitive electronics. With profile suited for portable... Read More

Electrical Equipment & Systems

Open LED Protector improves reliability of lighting strings.

Nov 14, 2012

Designed for use with 1 W LEDs, nominally 350 mA, 3 V, PLED6M Series LED protector offers switching electronic shunt path when diode in LED string fails as open circuit. Unit has turn-on voltage of 7.5 V and on-state voltage of 1.2 V, minimizing steady state power dissipation following LED open failure. It automatically resets if LED resumes normal operation or power is cycled. Applications... Read More

Electrical Equipment & Systems, Electronic Components & Devices, Materials & Material Processing

Compact Diode Arrays absorb ESD strikes at ±30 kV.

Nov 14, 2012

Featuring compact SOT143 package, SR70 Series TVS Diode Arrays comprises 4 low-capacitance, rail-to-rail diodes to provide protection against ESD and lightning-induced surge damage. Able to absorb up to 40 A without performance degradation, series offers loading capacitance level of 2.0 pF typical and dynamic resistance of 0.35 Ω. Product facilitates the protectection... Read More

Electrical Equipment & Systems, Electronic Components & Devices, Green & Clean

SMD PPTC Resistors reset automatically.

Nov 12, 2012

Available in sizes as small as 0402, POLYFUSE® LoRho™ Surface Mount Resettable PPTC Series provides overcurrent protection against fault current surges by limiting electrical current flowing through device. When fault current flows through device, it generates heat, which causes device’s internal resistance to rise rapidly, limiting current flow to circuit downstream to safe level.... Read More

Electronic Components & Devices

Broadband Protection Thyristor serves VDSL2+, ADSL2 applications.

Oct 19, 2012

SDP Series SOT23-5 SIDACtor® Protection Thyristors are designed for use in tertiary or line driver side protection position for ADSL2 and VDSL2 as well as 30 MHz bandplan of VDSL2+ applications and general I/O protection functions. Delivering low capacitance over-voltage protection, products do not require use of bias voltage and offer protection robust enough for use in chip-side... Read More

Electrical Equipment & Systems

Earth-Leakage Relay protects VFDs from 0-15,000 Hz.

May 03, 2012

Able to detect ground current, even in resistance-grounded electrical systems, EL731 AC/DC Sensitive Earth-Leakage Relay is equally useful for AC, mixed AC/DC, and DC systems, including low-voltage 6-pulse variable frequency drives used on motors up to 250 hp. Model EL731 can be installed in place of existing ground fault relay without replacing current transformer. Unit can protect variety of... Read More

Electronic Components & Devices

Compact Fuse Blocks feature neon light for local indication.

Oct 29, 2010

DIN-releasable, POWR-GARD® LF Series of indicating fuse blocks are suited for panel shops and OEMs. Universal mounting holes aid in drop-in replacement and snap-to-release feature allows fuse block to be easily mounted and released from 35 mm "hat" DIN rail. UL Classes H/K5 and R rated units include voltages and amperages of 250 and 600 V, and 30-100 A where as UL Class J rated units have... Read More