Littelfuse Thyristor Quadracs for LED Dimmer Applications
Littelfuse Thyristor Quadracs are internally triggered Triacs designed for AC switching and phase control applications. The Quadrac is a Triac and DIAC in a single package, which eliminates the need for separate Triac and DIAC components. The Littelfuse Thyristor Quadracs are specifically designed for the low load current characteristics typical in LED lighting applications. These Quadracs are specified to perform best with LED loads by keeping holding current at 8mA maximum. The 8mA maximum holding current provides full control of light output at the extreme low end of load conditions with a minimum probability of flickering. Offering di/dt performance of 70A/µs, the Thyristor Quadracs enable survivability of typical LED load operating characteristics. Littelfuse offers the Thyristor Quadracs in the industry standard TO-220AB package with an isolated mounting tab that makes it best suited for adding an external heat sink. The 110°C rated junction temperature improves margin of safe operation with fewer heat sinking requirements. Littelfuse's Thyristor Quadracs are excellent for AC switching and phase control applications such as heating, lighting, and motor speed controls; AC solid-state switches, lighting controls with LED lamp loads, small low current motor in power tools, and low current motors in home / brown goods appliances.
Littelfuse Thyristor Triacs for LED Dimmer Applications
Littelfuse Thyristor Triacs for LED Dimmer Applications are
specifically designed for the low load current characteristics typical
in LED lighting applications. These Triacs are specified to perform
best with LED loads by keeping holding current at 6mA maximum. The 6mA
maximum holding current provides full control of light output at the
extreme low end of load conditions with a minimum probability of
flickering. Offering di/dt performance of 70A/µs, the Thyristor Triacs
enable survivability of typical LED load operating characteristics. The
110°C rated junction temperature improves margin of safe operation with
fewer heat sinking requirements. Littelfuse's Thyristor Triacs are
well-suited for AC switching and phase control applications such as
heating, lighting, and motor speed controls; AC solid-state switches,
lighting controls with LED lamp loads, small low current motor in power
tools, and low current motors in home / brown goods appliances.
Littelfuse PICO® 259-UL913 Series Fuses
Littelfuse PICO® 259-UL913 Series is the only fuse approved under the UL 913 standard for Intrinsically Safe Electrical Equipment to operate in hazardous locations. In addition to UL 913, these fuses meet ATEx, IECEx and Baseef requirements. The PICO® 259-UL913 Fuse was designed to limit the energy and heat generated during its operation and is ideal for use in the oil, gas, mining, chemical, pharmaceutical, food/beverage processing industries.
Littelfuse LV UltraMOV™ Varistor Series
Littelfuse LV UltraMOV™ Varistor Series offers maximum peak surge current rating up to 8KA (8/20 μs pulse) to protect against high peak surges, including indirect lightning strike interference, system switching transients and abnormal fast transients from the power source. Available in five model sizes: 5mm, 7mm, 10mm, 14mm and 20mm, these devices feature a wide VAC voltage range of 11V to 40V, VDC voltage range of 14V to 56V, and high operating temperature range up to 125ºC. The Littelfuse LV UltraMOV™ Varistor Series of low voltage, high surge current, radial leaded varistors provides an ideal circuit protection solution for lower DC voltage applications by offering higher surge ratings than ever before available in such small discs. They are ideal for LED lighting drivers, cordless phones, wireless base stations, audio devices, mobile phone chargers, security systems, fire alarm systems, automation control systems (PLCs), industrial control contact relay, and surge protection devices.
Littelfuse POWRGARD® LFPHV Fuse Holders
Littelfuse POWRGARD® LFPHV Fuse Holders are designed to house 1000V SPF solar and FLU 10 x 38 mm fuses. Littelfuse POWRGARD LFPHV Fuse Holders are not designed for load break but are ideal for isolating photovoltaic module strings for maintenance and meets UL requirements for 1000V solar fuse protection.
Littelfuse SP1005 / SP1007 - EXPANSION
Littelfuse's SP1005 and SP1007 Series have been expanded to include SP1005-01ETG and SP1007-01ETG in the compact SOD882 package. These space-efficient TVS diodes feature a low dynamic resistance, enhanced ESD capability, and low leakage current of 0.1uA @ 5V. The small SOD882 footprint make SP1005-01ETG and SP1007-01ETG ideal for portable medical, tablets, eReaders/eBooks, smartphones, PMP/MP3, camcorders, digital cameras, any keypad / buttons, audio, analog video, low-speed I/Os, and switches.
Littelfuse SP1005 and SP1007 Bidirectional TVS Diodes are
part of the Silicon Protection Arrays SPA™ portfolio and provide
best-in-class ESD protection by offering the lowest dynamic resistance
in the industry's smallest available footprint. Littelfuse SP1005
Silicon Protection Array devices (30pF @ 0V) offer up to ±30kV ESD
protection and 10A (tp=8/20µs) of surge protection with only 0.7Ω of
dynamic resistance, providing best-in-class clamping performance.
Littelfuse SP1007 Silicon Protection Array devices (3.5pF @ 2.5V) can
withstand up to ±8kV ESD, which protects up to the maximum level of the
IEC61000-4-2 international standard. The SP1005 and SP1007 are flipchips
measuring only 0.62x0.32x0.28mm. These TVS diodes are optimized for use
in a wide variety of applications, including mobile phones, smart
phones, camcorders, PDAs, digital cameras, and more.
View all SP1005 and SP1007 TVS diodes
UL1449 3rd Edition
Underwriters Laboratories standard UL 1449 has become the primary safety standard for surge protective devices (SPDs). It describes the materials and installation requirements for SPDs used for the protection of AC electrical circuits. The standard has been revised twice in the past few years. A major safety testing initiative (UL 1449 2nd edition) became effective February 2007, and additional administrative and methodology changes (UL 1449 3rd edition) became effective in September 2009. The 3rd edition also includes new independent performance testing requirements.
UL 1449 3rd edition completely supersedes preceding editions. From September 2009 on, all equipment brought onto the market must satisfy these new requirements in order to qualify for the UL label. Practically all North American surge standards now revolve around 3rd edition, and are now purposely aligned with other standards, including UL 1283, 2008 National Electrical Code™ Article 285, NEMA LS-1, ANSI/IEEE C62 documents and others.
Littelfuse SR70 TVS Diode Array for Lighting Surge Protection
Littelfuse's SR70 Series TVS Diode Array features of four, low capacitance, rail-to-rail diodes designed to provide protection against ESD and lightning surge events. These robust diodes can safely absorb up to 40A (tP=8/20μs) and repetitive ESD strikes at the maximum level (Level 4) specified in the IEC 61000-4-2 international standard without performance degradation. In addition, the device offers excellent clamping performance via extremely low dynamic resistance of 0.35ohms. SR70's low capacitance of 2pF (I/O to GND) and small SOT143 package makes the device ideal for protecting high-speed data lines such as xDSL (ADSL, VDSL) interfaces, ISDN, WLAN, LAN, I2C Bus, microcontroller inputs, video lines, 10/100/1000 Ethernet.
Littelfuse 807 Series TE7 Time Lag Radial Leaded Fuses
Littelfuse 807 Series TE7 Time Lag Radial Leaded Fuses are subminiature fuses designed to provide overcurrent protection on AC circuits up to 300V. Littlefuse's 807 Series TE7 Time Lag Radial Leaded Fuses feature the industry's highest inrush current withstand capability and breaking capacity. Designed in accordance with IEC 60127-4, the 807 Series offers a broad current rating of 800mA to 6.3A, low internal resistance, and wide operating temperature range of -40ºC to +125ºC to provide robust performance and highly reliable protection in ultra high ambient temperatures. The shock safe casing ensures no physical damage during high frequency vibration. With the 807 Series' high interrupting rating. high nominal melting I2t, and small 7.5mm pitch, these fuses are ideal for ballast lighting, commercial LED lighting, battery chargers, consumer electronics, power supplies, and industrial controllers. RoHS compliant and cURus, PSE, KC agency approved, these fuses are available in solderable or plug-in versions.
Littelfuse SP3012-06UTG TVS Diode Array (SPA™ Family of Products)
Littelfuse SP3012-06UTG TVS Diode Array (SPA™ Family of Products)
offers market leading clamping performance with a very low dynamic
resistance of 0.4Ω to provide superior ESD protection for high-speed
ports, such as HDMI1.3/1.4, USB2.0, USB3.0, eSATA and Ethernet.
SP3012-06UTG integrates 6 channels of ultra-low capacitance rail-to-rail
diodes and an additional zener diode in a small form µDFN package (3.5x
1.35 x 0.5mm). The optimized μDFN-14 package enables straight-through
routing to simplify PCB designs. This robust device can safely absorb
repetitive ESD strikes at ±12kV (contact discharge), 25kV (air
discharge) per IEC61000-4-2 and above the maximum level specified in the
IEC61000-4-2 international standard (±8kV contact discharge) without
performance degradation. SP3012-06UTG's extremely low load capacitance
of only 0.5pF (per I/O to GND) minimizes signal degradation and
distortion to protect high-speed signal pins. Designed to protect
sensitive chipsets on high-speed data lines from any external ESD event,
SP3012-06UTG is ideally suited for LCD/PDP TVs, DVD/Blu-ray Players,
desktops, MP3/PMP, set top boxes, smartphones, ultrabook/notebooks, and
digital cameras.
Littelfuse 337 Series MICRO3™ Blade 32V Fuses
Littelfuse 337 Series MICRO3™ Blade 32V Fuses combine two individual fused circuits in a single sub-miniature body to provide an ideal solution for space-constrained systems. By housing two fuse elements in a single package less than 15mm wide with 5mm terminal spacing, MICRO3™ allows for more circuits in a smaller space, decreases harness weight, maximizes available area, and reduces overall complexity in automotive and other applications. Designed to perform from -40°C to over 125°C, MICRO3™ is rated for high temperature under hood operation. In addition, MICRO3™ features a tighter overload tolerance than industry standards (120 sec max @ 135%
Ir), enabling designers to further optimize their wiring systems. Littelfuse offers the 337 Series MICRO3™ Blade 32V Fuses in four different current ratings, ranging from 5A to 15A,with a 32 VDC rating and standard 2.8mm terminals.
Littelfuse 485 Series NANO2® 600VDC Fast Acting SMD Fuse
Littelfuse 485 Series NANO2® 600VDC Fast Acting SMD Fuse is the industry's first compact (12.1mm x 4.5mm x 4.5mm), surface mountable
600VDC fuse for overcurrent protection of high voltage DC circuits. The 485 Series Fuse provides fast-acting high voltage and energy protection to ensure high-speed protection against surge currents and overload conditions with a relatively high breaking capacity of 100A and very small footprint. A ceramic housing ensures robust operation and long-term reliability, even in high ambient operating temperatures. Primarily designed for circuit protection in high energy applications, the 485 Series Fuse is well-suited for high-end PC servers, telecom power distribution systems, LCD/PDP TV inverter boards, DC input protection, Uninterruptible Power Supply (UPS) Systems, and 3 phase power supplies. Littelfuse's 485 Series NANO® 600VDC Fast Acting SMD Fuse is fully compatible with lead-free solders alloys and higher temperature profiles associated with lead-free assembly.
Littelfuse PLED6M Open LED Protectors - EXPANSION
New!
Littlefuse has expanded its line of PLED Series Open LED Protectors to
include the PLED6M Series. PLED6M is a electronic shunt for open LEDs
featuring a small footprint and auto-reset after the power cycle. The
device is well-suited for outdoor signage where high reliability and low
maintenance are required.
Littelfuse PLED Series Open LED Protectors provide a switching electronic shunt path when an LED in an LED array fails as an open circuit, ensuring that the entire array of LEDs will continue to function even if a single LED in the array doesn't. PLED Series Open LED Protectors provide higher reliability lighting functions in applications such as headlights, aircraft, aircraft runway lighting, roadside warning lights, and more. These Littelfuse LED protection devices are compatible with 1, 2, and 3W LEDs that have a nominal 3V forward characteristic. Littelfuse PLED devices are available in a variety of package types, including QFN and DO-214 surface mount packages, SOT-89, and the small form factor Powermite® package.
View the entire line of PLED Open LED Protectors
Littelfuse Varistors
Littelfuse Varistor protective devices offer several important features, such as overvoltage protection, peak current ratings from 20A-70,000A, peak energy ratings from 0.01J-10,000J, and mounting options to serve a wide range of applications. Littelfuse's Varistor product families also offer many form factor and protection ranges, rugged cost-effective protection, thermal protection options, and RoHS compliance. Littelfuse TMOV®25S and TMOV®34S Varistors were named the winner of the 2012 Chicago Innovation Awards.
Littelfuse PulseGuard ESD Suppressor
Littelfuse PulseGuard ESD Suppressor is a polymer
composite material base surface mount suppressor designed for ESD
protection of sensitive electronic equipment requiring a small
footprint. The 0201 Series features the smallest footprint (0201 size)
Polymer ESD suppressor available in the market. Littelfuse PulseGuard
0201 Series suppresses fast rising ESD transients while adding virtually
no capacitance to the circuit. PulseGuard 0201 Series ESD Suppressor
offers a 0.07pF low capacitance for high speed data transfer with
minimal interference. The device is ideally suited for low-voltage, high
speed data port applications where low capacitance is important to
ensure minimal interference of data signal integrity such as HDMI,
USB3.0, USB2.0, eSATA, video & audio ports, RF antenna, LCD HDTV,
LED HDTV, computer peripherals, smart phones, digital cameras,
industrial instruments and medical equipment, set-top boxes, and gaming
consoles.
Littelfuse SMF Series 200W Low Profile TVS Diodes
Littelfuse's 200W Low Profile SMF TVS Diode protects sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Offered in the SMF package, the 200W TVS Diode is 50% smaller in footprint when compared to SMA package and delivers one of the lowest height profiles (1.1mm) in the industry. This device provides low inductance, excellent clamping, 200W peak pulse power, a fast response time, and built in strain relief for board flexing. Applications include I/O interfaces, Vcc bus and other vulnerable circuit used in cellular phones, portable devices, business machines, power supplies, and consumer applications.
Littelfuse TCMOV & SMOV Series Thermally Protected Varistors w/Micro-Switch
Littelfuse introduces TCMOV and SMOV Series Thermally Protected
Varistors with the micro-switch indicator to help manufacturers meet the
requirements specified in UL1449 (3rd edition) for Type 1 or Type 2
Surge Protection Device (SPDs) applications. TCMOV and SMOV Series
Thermally Protected Varistors are especially
well-suited for surge protection devices, AC panel protection modules,
power transfer switches, AC/DC power distribution systems, photovoltaic
systems, and cell phone base stations.
-TCMOV34S Series features 34mm2-format
varistors that combine high maximum surge capability (50kA) with an
integrated thermally active element and offer a short circuit current
rating of 200kA. In the event of overheating due to abnormal
overvoltage, the TCMOV34S Varistor safely disconnects itself from the
circuit. A built-in micro-switch triggered by a mechanical slide
indicates when a circuit is completely isolated from the primary
circuit.
-SMOV25 and SMOV34 Series Varistors safely disconnect from
the circuit in a sustained over-voltage, intermediate current condition
as defined by UL1449 (3rd edition). The integrated thermal element is
positioned close to the MOV body to allow for a quick thermal response.
The varistors offer high peak surge current handling and energy
absorption capabilities with an operating voltage range compatible with
common AC line voltage (115VAC to 750VAC). A separate micro-switch
indicates when the MOV has been disconnected from the circuit. This
separate switch isolates the monitoring circuitry from the primary
circuit to ensure indicator circuit safety and simplify the user's
circuit design.
Littelfuse SP3031 TVS Diode Array SPA™
The Littelfuse SP3031 Series features low capacitance
rail-to-rail diodes with an additional zener diode to provide protection
for electronic equipment that may experience destructive electrostatic
discharges (ESD). These Littelfuse SP3031 robust diodes can safely
absorb repetitive ESD strikes above the maximum level specified in the
IEC 61000-4-2 international standard (±10kV contact discharge) without
performance degradation. With a low dynamic resistance of 0.6Ω, the
SP3031 Series offers superb clamping performance to protect sensitive
chipsets. The low loading capacitance of 0.8pF minimizes signal
degradation and distortion; making these devices ideal for protecting
high-speed signal pins such as USB 2.0, Ethernet, MHL/MIPI/MDDI, Set Top
Boxes, Game Consoles, Smart Phones, External Storage, Ultrabooks,
NoteBooks, Tablets, eReaders.
Littelfuse SP3021 TVS Diode Array SPA™ for Bidirectional ESD Protection
The Littelfuse SP3021 Series features back-to-back TVS diodes
fabricated in a proprietary silicon avalanche technology to provide
protection for electronic equipment that may experience destructive
electrostatic discharges (ESD). The back-to-back configuration provides
symmetrical ESD protection for data lines when AC signals are present.
These Littelfuse SP3021 robust diodes can safely absorb repetitive ESD strikes
at the maximum level specified in the IEC 61000-4-2 international
standard (Level 4, ±8kV contact discharge) without performance
degradation. With a low dynamic resistance of 1.6Ω, the SP3021 Series
offers superb clamping performance to protect sensitive chipsets. The
low loading capacitance of 0.5pF minimizes signal degradation and
distortion; making these devices ideal for protecting high-speed signal
pins such as USB3.0, MHL/MIPI/MDDI, HDMI, Display Port, eSATA, Set Top
Boxes, Game Consoles, Smart Phones, External Storage, Ultrabooks,
NoteBooks, Tablets, eReaders.
Littelfuse 216SP 5x20mm Fast Acting Pigtail Fuses
Littelfuse introduces 216SP as a ceramic base 5x20mm-size single pigtail fuse designed to IEC standards for global use. The Littelfuse 216SP 5x20mm Fast Acting Pigtail Fuse is
designed with one cap on each terminal side, giving it a smaller size
compared to existing double pigtail fuses. The 216SP fuse meets the IEC
60127-2,Sheet 1 specification for fast-acting fuses and offers a 1A to
10A current rating, 1500A@250Vac interrupting rating, and an operating
temperature range of -55ºC to 125ºC. RoHS compliant and 100% lead-free,
the 216SP fuse is used as supplementary protection in appliance or
utilization equipment to provide individual protection for components or
internal circuits.
Littelfuse SMA Series SIDACs - EXPANSION
Littelfuse expanded its Littelfuse SIDACtor Baseband Protection Thyristors product line to include the low profile SMA Series. The SMA Series features excellent surge rating, low voltage overshoot, and low capacitance with a smaller SMA package. The SMA Series from Littelfuse does not degrade surge capability after multiple events and is ideal for cordless and digital phones that require CPE Tip to Ring Protection, Telecom line protection.
Littelfuse SIDACtor Baseband Protection Thyristors are solid state crowbar
devices designed to protect of baseband telecommunications equipment
such as phones, faxes, modems, line cards, CPE and DSL from damaging
overvoltage transients. Leveraging the latest in thyristor advancements,
Littelfuse offers SIDACtor devices with a patented ion implant
technology. This technology ensures effective protection within
nanoseconds, up to 3000 A 1.2-50-8/20 surge current ratings, and simple
solutions for regulatory requirements such as GR 1089, TIA-968-B
(formerly known as FCC Part 68), ITU-T K.20, ITU-T K.21, and UL 60950-1.
In the standby mode, SIDACtor devices exhibit a high off-state
impedance, eliminating excessive leakage currents and appearing transparent to the circuits they
protect. If a voltage exceeding the switching voltage (VS) occurs, the
SIDACtor devices crowbar and simulate a short circuit condition until
the current flowing through the device is either interrupted or drops
below the SIDACtor device's holding current (IH). When this occurs,
SIDACtor devices reset and return to their high off-state impedance.
View all SIDACtor Baseband Protection Thyristors
Littelfuse SIDACtor® Baseband Protection Thyristors
Littelfuse SIDACtor Baseband Protection Thyristors are solid
state crowbar devices designed to protect of baseband telecommunications
equipment such as phones, faxes, modems, line cards, CPE and DSL from
damaging overvoltage transients. Leveraging the latest in thyristor
advancements, Littelfuse offers SIDACtor devices with a patented ion
implant technology. This technology ensures effective protection within
nanoseconds, up to 3000 A 1.2-50-8/20 surge current ratings, and simple
solutions for regulatory requirements such as GR 1089, TIA-968-B
(formerly known as FCC Part 68), ITU-T K.20, ITU-T K.21, and UL 60950-1.
In the standby mode, SIDACtor devices exhibit a high off-state
impedance, eliminating excessive leakage currents and appearing
transparent to the circuits they protect. If a voltage exceeding the
switching voltage (VS) occurs, the SIDACtor devices crowbar and simulate
a short circuit condition until the current flowing through the device
is either interrupted or drops below the SIDACtor device's holding
current (IH). When this occurs, SIDACtor devices reset and return to
their high off-state impedance.
NEW!
Littelfuse expanded its Littelfuse SIDACtor Baseband Protection Thyristors product line to include the low profile SMA Series which features excellent surge rating, low voltage overshoot,
and low capacitance, a smaller SMA package, and does not degrade surge capability after multiple events.
View the SMA Series
Littelfuse AK3 Series TVS Diodes
Littelfuse AK3 Series Transient Voltage Suppression (TVS) Diodes have been specially designed for use in A.C. line protection and any particularly demanding applications (AC or DC). They offer superior clamping characteristics over standard S.A.D. technologies by virtue of the Littelfuse Foldbak technology, which provides a clamping voltage lower than the avalanche voltage, but above the rated working voltage. Therefore, any voltage rise due to increased current conduction is contained to a minimum, providing the best possible protection level. Littelfuse AK3 Series TVS Diodes can also be connected in series and/or parallel to create very high capacity protection solutions.
Littelfuse Silicon Protection Arrays (SPA)
Littelfuse TVS Diode Arrays SPA™ (Silicon Protection Arrays) are designed for newer electronic devices that require a more robust solution to damage from ESD, EFT, and lightning induced transients. The Littelfuse TVS Diode Arrays SPA™ devices offer the lowest dynamic resistance during an ESD or any EOS (electrical over stress)event which reduces clamping voltage levels far below that of competing technologies such as MLV, MOV, and polymer. Also available is a TVS Diode Arrays SPA™ Sample Kit containing ten each of the 39 TVS Diode Array SPA™ devices.
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