Company News

Littelfuse, Inc.

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

  • 800-522-7697

Latest New Product News from
Littelfuse, Inc.

Electrical Equipment & Systems, Electronic Components & Devices, Sensors Monitors & Transducers

Overcurrent Protection Device measures only .063 x .032 in.

Jun 12, 2008

Available in 4 hold current/maximum voltage ranges, including 0.10 A/15 Vdc, 0.20 A/9 Vdc, 0.25 A/9 Vdc, and 0.35 A/6 Vdc, Series 0603L Polyfuse® PPTC (polymer positive temperature coefficient thermistor) resettable over-current protection device has maximum fault current rating of 40 A, and meets TUV and UL safety standard certification. It is suited for wide range of consumer electronic... Read More

Electrical Equipment & Systems

SMT Fuses provide overcurrent protection for PCBs.

May 20, 2008

Measuring 10.1 x 3.12 x 3.12 mm, Series 0443 time-delay fuses are suited for applications with 250 Vac requirement and limited space. They have inrush current withstand (I2t) ratings of up to 127A2s (5A current rating) along with time lag characteristic. Units offer current ratings from 500 mA to 5 A with interrupting rating of 50 A at 250 Vac. Fuses are used by OEMs of products that have ac... Read More

Electrical Equipment & Systems

Voltage Surge Suppressor suits broadband communication lines.

May 15, 2008

SP03-6 Silicon Overvoltage Protection Array combines TVS device with diode rectifier bridge to provide longitudinal (common mode) and differential protection in one package, suppressing both positive and negative voltage surges. It has reverse standoff voltage of 6 V, and clamps surges to 15 V under 50 A surge current conditions (20 V at 100 A surge). Unit is designed for data lines and interface... Read More

Electronic Components & Devices

Thyristors offer high blocking voltage and dv/dt immunity.

May 09, 2008

With 800 V minimum rated blocking voltage, max turn-on time as low as 25 µs, and minimum rated static dv/dt of up to 75 V/µs, EV Series Teccor Thyristors can survive transient voltages, minimize false triggering, and prevent unstable activation. Series includes 0.8 A and 1.5 A sensitive gate silicon controlled rectifiers, as well as 0.8 A and 1.0 A sensitive gate triacs. RoHS-compliant... Read More

Electrical Equipment & Systems

Surge Protector suits broadband customer premises equipment.

May 06, 2008

Providing off-state capacitance of less than 20 pF, SIDACtor® Broadband Optimized(TM) TwinChip Axial series offers bidirectional protection to limit voltage surges to safe level, while handling surge currents up to 100 A under lightning surge test conditions of 10 x 560 µs. It is comprised of low capacitance DO-15 axial lead SIDACtor devices with specific working voltages in ranges of... Read More

Electrical Equipment & Systems

DSL Protectors do not interfere with signal quality.

May 02, 2008

SDP Series are SIDACtor devices utilizing bridge and biased bridge technologies that provide protection in DSL applications while overcoming performance issues related to capacitance non-linearity. Compatible with GR-1089-CORE and ITU K.20/21 lightning surge withstand specifications, C version offers surge rating of 500 A for a 2 x 10 µS waveshape and 200 A for a 10 x 700 µS waveshape,... Read More

Electrical Equipment & Systems

Broadband Driver Protector limits secondary line voltage.

Apr 16, 2008

Supplied in 0.118 x 0.118 x 0.39 in. QFN package, TwinChip(TM) SDP Series provides broadband driver amplifier protection for secondary side of coupling transformers. SIDACtor® Broadband Optimized(TM) configuration provides bidirectional protection to limit DSL secondary line voltage to safe 43 V peak level. Surge current ratings up to 100 A, under lightning surge test conditions of 2 x 10... Read More

Electrical Equipment & Systems, Electronic Components & Devices

Diode Array features thyristor-based design.

Feb 18, 2008

Capable of protecting telecomm and datacom interface circuits from ESD and other overvoltage threats, SP725 Series of SCR Diode Array features 2-30 V operating voltage range, 14 A surge current with 8 x 20 µs waveform, 2 nsec rise time, 5 pF max input capacitance, and 5 nA typical, 20 nA max leakage current. RoHS-compliant unit meets IEC 61000-4-2 test requirements for 8 kV direct discharge... Read More

Electrical Equipment & Systems, Electronic Components & Devices

TVS Diodes protect communications circuits.

Jan 14, 2008

Transient voltage suppression (TVS) diodes are offered in SMT versions with power ratings from 400-5,000 W and axial leaded versions from 400-30,000 W. Low-capacitance products (under 50 pf), when used on signal lines, reduce transmission loss in modem, ADSL, and similar functions. Available with unidirectional and bidirectional polarities, diodes offer response times of less than 1.0 ps (typ)... Read More

Electrical Equipment & Systems

Subminiature 125 V SMT Fuse has current rating above 15 A.

Sep 14, 2007

Supplied in 0.397 x 0.123 x 0.123 in. package compatible with pick and place electronics assembly processes, Nano2 456 Series lets circuit engineers design-in primary and secondary over-current protection with single subminiature ceramic fuse. RoHS- and UL-compliant series, available in 20 and 30 A ratings, offers respective interrupting ratings of 100 A @ 125 Vac and 300 A @ 65 Vac. Applications... Read More

Electrical Equipment & Systems

C-Rated SLIC Device protects against surge events.

May 01, 2007

Offered in surface-mount 3.3 x 3.3 mm QFN package, SIDACtor® Q2L transient voltage SLIC protector is designed to meet 500 A rating for 2 x 10 µs GR 1089 waveform. Fixed-voltage protector is available in various Vdrm/Vs values and can withstand surge events required in GR-1089-CORE Issue 4, ITU K.20/21 Enhanced levels, and IEC-61000-4-5. When used in place of programmable SLIC protection... Read More

Electronic Components & Devices

Thyristor provides high surge current protection.

Aug 04, 2006

Housed in QFN package with footprint of 3.3 x 3.3 mm and 1 mm height, Q2L Series C-Rated SIDACtor Thyristor offers surge rating of 500 A 2 x 10 µs and provides bidirectional transient voltage protection. Unit is equipped with leads on bottom to address creepage and clearance requirements of UL/EN 60950, providing routing of traces on PCB. Device is RoHS-compliant and has surge withstand... Read More

Electrical Equipment & Systems

Gas Plasma Arrester suits telecom applications.

Apr 05, 2006

Rated at 10 kA/10 Aac, 2-terminal Delta Model SL1411A protects highly exposed external plant equipment and is designed to meet requirements of GR-1361, RUS PE-80, ITU K.12 and YD/T940, 950, 1082, 993, and 694. Surge clamping capability minimizes transient to lowest possible level. Unit can be exposed to repetitive 10 kA pulse while enduring stable breakover voltage, ensuring protection during... Read More

Electronic Components & Devices

Protection Thyristor comes in low-profile QFN package.

Oct 12, 2005

Designed for dense board telecom applications and customer premises equipment, RoHS-compliant Teccor® Q2L Series SIDACtor® device features 1.0 mm height on PCB and delivers telecom protection in chip scale package size. Unit provides bidirectional transient voltage protection and offers various Ipp ratings: 75 A for 5 x 310/10 x 700 µs event (ITU/YDT waveform), 80 A for 10 x 1000 µs... Read More

Electrical Equipment & Systems

Gas Plasma Arresters suit broadband applications.

Sep 15, 2005

Lead-free and RoHS-compliant, Greentube(TM) Series SL0902 offers alternative to silicon surge protectors when high bandwidth and low capacitance are required. Products combine low insertion loss, no capacitance variation with voltage and temperature, and voltage clamping to prevent surge damage while maintaining data integrity. Units can be accommodated on D0-214AA solder pads. Read More

Electrical Equipment & Systems

Fuses are offered in lead-free versions.

Jun 23, 2005

Designed to withstand high temperatures associated with lead-free wave soldering, lead-free fuses are available in 2AG, SAG, 3AB, and 5 x 20 mm form factors. Fuses comply with electronic industry manufacturing standards for lead-free circuit board content including IEC 60068-2-20, EIA-IS-722 (Low Voltage Supplemental Fuse Qualification Specification), and RoHS. All have CSA and UL approvals. Read More

Electronic Components & Devices

TVS Diodes come in surface-mount and axial lead packages.

Jan 21, 2005

TVS Diode product line includes P4KE Series 400 W axial leaded product, SMAJ and P4SMA Series 400 W SMT products, and SMCJ and 1.5SMC Series 1,500 W SMT products. Offered in RoHS-compliant packaging, silicon avalanche diode solutions have voltage range of 5.0-550 V and protect electronic equipment from voltage/energy transients. Voltage clamping levels make them suited for computer equipment,... Read More

Electrical Equipment & Systems

Fuses meet RoHS requirements.

Jul 08, 2004

Surface-mount, RoHS (Restriction of Hazardous Substances)-compliant Nano² fuses feature gold finish on nickel-plated brass caps. They are available in subminiature and miniature formats, including very fast-acting, fast-acting, Sio-Blo® (time delay), UMF, 250 V UMF, and surge-resistant versions. With 100% tin finish, RoHS-compliant PICO II subminiature axial-lead fuses are available up to... Read More

Materials & Material Processing

ESD Suppressors feature 500 V trigger voltage.

May 13, 2004

PulseGuard® Series PGB1 ESD Suppressors are RoHS compliant and compatible with high temperature reflow cycles. They offer ESD protection on high-speed signals such as HDMI, DVI, USB 2.0, and FireWire. With capacitance of 0.055 picofarads and ESD event response time of less than 1 nanosecond, units offer protection without waveform distortion. All devices are compatible with lead-free... Read More

Electrical Equipment & Systems

Surge Fuse protects against TVS failure.

Apr 28, 2004

Offering precise mating to TVS components, Littelfuse Varistor Surge Protection fuse protects TVSS products and survives 8 x 20 µsec lightning surges without opening. UL-Recognized MOV Protector Fuse, rated for peak surge currents from 5-100 kA, protects TVSS by opening Varistor circuit when it is shorted due to energy beyond its rating. Series has 200 kA max interrupt rating at 600 Vac.... Read More