Active filters amplify desired signals while rejecting unwanted frequencies, and can be tailored to meet application-specific requirements in electronics.
Amplifiers boost signal strength, match impedance levels, and are essential in many circuit systems, including audio, broadcasting, and telecommunications.
Batteries store and provide electrical energy, come in various types and sizes for multiple uses, rechargeable or single-use.
Capacitors store electrical charge with metallic plates and a dielectric; types vary and can be combined for specific circuit characteristics.
Chip carriers and sockets provide an interface between components and PCBs, enabling easy replacement or upgrading without soldering.
Circuit protection devices prevent damage from overcurrent flow, including fuses, breakers, surge protectors, and voltage regulators.
Connector accessories and support devices aid connector function and longevity, including backshells, grips, clamps, and ties; must be compatible with connector type.
Connectors join electronic circuits to transfer signals and power, come in various sizes and shapes, and include support accessories.
Converters transform DC input to another voltage level, essential in electronic systems, renewable energy, and automotive electronics.
Crystals and resonators generate and stabilize frequency signals via piezoelectricity. They are used in timing, frequency control, and filters. Crystals are quartz and resonators are ceramic with a built-in capacitor.
Semiconductor diodes control current flow in one direction (uni-directionality) via low resistance. Useful for rectification, voltage regulation, detection, and digital logic.
Discover essential electronic components for your devices, including CPU accelerators, system cache controllers, computer processors, motherboards, and graphics computing systems. Enhance device performance and connectivity with reliable components engineered for seamless integration and optimal functionality.
Fiber optics use light pulses to transmit data over long distances. They have superior bandwidth capacity, low signal attenuation, and secure physical properties. They are essential in telecommunications networks today.
Filters enhance signal processing by selectively passing desired frequencies while suppressing unwanted ones. Filters can be passive (using capacitors, resistors, and inductors) or active (using transistors or amplifiers).
Flash devices are non-volatile storage solutions that offer fast read and write speeds, making them ideal for applications requiring high-speed data transfer. These devices utilize flash memory technology, providing reliable storage for data-intensive tasks such as gaming, multimedia, and enterprise-level applications.
General purpose ICs consist of multiple individual circuits or components (e.g., logic gates, amplifiers, oscillators, etc.) that are combined onto a single integrated circuit chip for a smaller physical footprint.
I/O and storage controllers are crucial components in computer systems, managing input/output operations and storage devices. These controllers facilitate efficient data transfer between peripherals, storage drives, and the central processing unit (CPU), enhancing system performance and enabling seamless connectivity.
Inductors store energy in magnetic fields, oppose sudden changes in current flow and prevent electrical surges. Common inductor applications include power supplies, signal filters, and oscillators.
Interface ICs allow efficient device connectivity with high-speed data transfer and low power consumption.They can be ASIC or FPGA types, and may perform additional functions such as sensing, storage, and conversion.
Logic ICs can be used for storage, memory, amplification, and multiplexing. They perform fundamental logical operations on digital input signals (1, 0, H, L) to generate a corresponding digital output signal.
Memory modules are essential components in electronic devices, storing data temporarily or permanently for processing and retrieval. From volatile RAM (Random Access Memory) to non-volatile ROM (Read-Only Memory), memory technologies vary in speed, capacity, and functionality, catering to diverse application requirements.
Memory ICs store digital data and retain the information even when the power is turned off. They come in various types, like RAM (Random Access Memory) for fast data access, and ROM (Read-Only Memory) for permanent data storage.
Miscellaneous semiconductor components are a diverse category of electronic components that combines elements from a mix of component devices.
Optoelectronic devices interact with light. This family of devices can emit light, detect light, generate current, and transmit light signals for long-distance communication.
Oscillators generate repetitive waveforms, such as sine, square, or triangle waves. They are commonly used to produce stable and precise frequencies for applications like clocks, signal generation, and communication systems.
Other Function Semiconductor components are a diverse category of semiconductor components that perform a range of specialized functions.
Passive component networks operate without a power source and support data transmission within system by performing filtering, energy storage, and/or signal coupling functions.
Peripheral ICs (Integrated Circuits) are designed to control and manage the peripheral devices connected to a computer or other electronic device.
Programmable Logic ICs are user-programmable devices that allow designers to create custom logic circuits. These cost saving ICs offer real-time data processing and maximum design flexibilty.
RF (Radio Frequency) and microwave devices are used in telecommunications, wireless communications, and electronic systems. These devices include amplifiers, attenuators, filters, mixers, oscillators, and antennas, and a host of other components.
Voltage regulators are used to ensure a constant output voltage despite power fluctuations and load changes. Linear and switching regulators are common types used to maintain voltage stability.
Relays are electromagnetic switches that are used to control the flow of electrical current in an electrical circuit. Relays are a safe means of providing isolation between a controlling circuit and a controlled circuit.
Resistors control the flow of electrical current in a circuit by introducing a set resistance. These passive components reduce current flow, adjust signal levels, and bias active elements in circuits.
Transducers convert energy from one form to another and are crucial in sensing, audio and control systems. They transform physical measures like temperature, pressure, or sound into electrical signals for circuits.
Storage drives are hardware devices used to store and retrieve digital data in computers and electronic devices. These drives come in various forms, including hard disk drives (HDDs), solid-state drives (SSDs), and hybrid drives, offering different levels of capacity, speed, and durability to suit specific storage needs.
Storage media encompass physical or digital mediums used for storing and preserving digital data. From optical discs and magnetic tapes to USB flash drives and memory cards, storage media come in diverse formats and capacities, offering flexibility and reliability for data storage and archival purposes.
Storage systems comprise hardware and software components designed to manage and store digital data efficiently. These systems range from simple standalone devices to complex network-attached storage (NAS) and storage area network (SAN) solutions, providing scalable storage capacity and data protection features for businesses and enterprises.
Switches control electrical current flow by making or breaking connections. These devices vary in design and application, from basic on/off switches to complex industrial automation systems.
Telecom integrated circuits (ICs) are specialized electronics for telecommunications, tailored to high data rates, low power use, and reliable long-distance transmission. These devices include amplifiers, filters, ADCs, DACs, and more-- and they are often integrated on one chip for specific telecom tasks.
Terminal blocks, or connection terminals, are modular blocks that bring together multiple electrical wires at one connection point. They offer a reliable, organized way to terminate cables.
Thermal management devices control heat in electronic systems, preventing overheating and ensuring optimal performance and reliability. Examples include heat sinks, fans, and thermal interface materials that dissipate or transfer heat away from components.
Transformers are devices that alter electrical voltage levels between circuits through electromagnetic induction. They are vital in power distribution, converting high-voltage electricity for transmission and lower voltage for safe usage.
Transistors are 3-layer semiconductor devices that regulate the flow of electrical current. They function as amplifiers, boosting weak signals, and as switches, controlling the flow of current between terminals.
Triggering devices initiate electronic processes or events in response to specific conditions. These devices support many automated tasks such as activating switches and signals, or turning on lights when motion is detected.
Video cards, also known as graphics cards or GPU (Graphics Processing Unit), are essential components in computers, responsible for rendering graphics and images on display devices. These cards feature dedicated processors and memory, delivering smooth and immersive visual experiences for gaming, multimedia, and professional applications.
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Featured manufacturers
KLB4 by Littelfuse is a 4A fast blow electric fuse with 250V AC/DC rated voltage, ideal for inline mounting. With dimensions of 14.3mm x 50.8mm and high breaking capacity of 200kA, it meets CSA and UL standards for reliable circuit protection in various applications.
Median Price
$1.390
Lifecycle Status
Suppliers In-Stock
11
In-Stock Inventory
1k+
Bürklin Elektronik
1+ parts
100+ parts
$1.100
1k+ parts
$0.950
10k+ parts
-
Distrelec
Nova Conductors
$1.682
Rapid Electronics
$2.033
$1.830
Vyrian
LIBRA Elektronik GmbH
Manotoh
ComSIT Distribution GmbH
ACDS - Activité Composants Distribution Service
Holdelec - ElecDif-Pro
Quittner & Schimek s.r.o.
Aranea Global
$1.648
$1.582
Continental Prestige Electronics
Argo Parts USA
Allen Electronics Distributors
$1.790
$1.530
Aztec Data Supply Inc.
$19.130
Standard Data Resources (Excess)
Cyclops Electronics Ltd (Excess)
The high AC voltage rating of 250V makes this fuse suitable for a variety of electrical applications where a reliable fuse protection is required.
The compact size of 14.3mm ensures easy installation in tight spaces without compromising on performance.
The end cap terminal shape allows for secure and stable connection, ensuring proper functioning of the fuse in the circuit.
The dimensions of 14.3mm x 50.8mm provide a standard size for easy replacement and compatibility with a wide range of fuse holders.
With a rated current of 4A, this fuse can effectively protect against overcurrent and short circuit situations in various electrical systems.
The fast blow characteristic ensures quick response to overcurrent conditions, providing reliable protection to the connected equipment.
This electric fuse type offers a high level of circuit protection, safeguarding against electrical faults and ensuring the safety of the overall system.
The high breaking capacity of 200,000A makes this fuse suitable for handling high fault currents, ensuring efficient protection and reliability.
With a rated DC voltage of 250V, this fuse is suitable for DC applications where a durable and reliable fuse protection is required.
The versatile mounting feature allows for easy installation in various configurations, providing flexibility and convenience in different setups.
Compliant with industry standards such as CSA and UL, this fuse ensures high quality and reliability, making it a trustworthy choice for electrical protection needs.
Fuses KLB4 attributes and parameters. Explore more Fuses devices from Littelfuse
Circuit Protection Type:
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Rated Breaking Capacity:
Rated AC Voltage:
Rated DC Voltage:
Body Diameter:
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Dimensions:
Blow Characteristic:
Additional Features:
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Manufacturer Series:
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KLB4 Circuit Protection trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
NSN
5920-00-116-2777, 5920001162777
NIIN
001162777
Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927.
LL4148
Promax-johnton
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
LM358M
Fairchild Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
USB2514BI-AEZG
Standard Microsystems
BUS CONTROLLER, UNIVERSAL SERIAL BUS; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 36; Package Code: HVQCCN; Package Shape: SQUARE;
M24308/2-1F
Itt Cannon
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Additional Features: STANDARD: MIL-DTL-24308, POLARIZED; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Filter Feature: NO;
OPA2277UA
Burr-Brown Corporation
OPERATIONAL AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
SMBJ18CA
International Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Clamping Voltage: 29.2 V; Nominal Breakdown Voltage: 21.1 V; Maximum Repetitive Peak Reverse Voltage: 18 V; Polarity: BIDIRECTIONAL;
EU2B-YS2J03C
Idec
ROTARY SWITCH;
Diotec Semiconductor Ag
1N4148WT
Taitron Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
FDD5614P
Onsemi
FDD5614P by Onsemi is a P-CHANNEL Power FET with 60V DS Breakdown Voltage, ideal for SWITCHING applications. It features 45A IDM and 0.1 ohm RDS(ON), operating in ENHANCEMENT MODE at up to 175°C. The PLASTIC/EPOXY package with GULL WING terminals ensures efficient heat dissipation and reliable performance.
Microsemi
Good-ark Electronics
2N7002
Central Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Maximum Drain Current (ID): .115 A; Maximum Drain Current (Abs) (ID): .115 A;
Changzhou Galaxy Century Microelectronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: J BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Siliconix
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Drain Current (ID): .115 A; Operating Mode: ENHANCEMENT MODE;
Continental Device India
MBR1560CT
General Instrument
MBR1560CT by General Instrument is a common cathode rectifier diode with a max forward voltage of 0.75V and max output current of 15A. It is used for efficiency applications, has a package shape of rectangular, and can operate in temperatures ranging from -65 to 150 °C.
LM358N
National Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
TCA6424ARGJR
Texas Instruments
TCA6424ARGJR by Texas Instruments is a CMOS parallel I/O port with 24 bits and 3 ports. It operates b/w -40 to 85°C, suitable for industrial applications. With a max clock frequency of 0.4 MHz, it offers low power consumption at only 0.03 mA supply current.
LP-CC-6/10
Cooper Electronic Technologies
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 6.6 A; Terminal Shape: END CAP;
LPJ-100SPI
Eaton Corporation
Eaton Corporation LPJ-100SPI fuse, rated 100A/600V, J class with time delay blow characteristic. Inline/holder mounting for circuit protection in applications requiring 300kA breaking capacity. Features indicator and meets CE, CSA, UL standards.
FNQ-R-25
Eaton Corporation's FNQ-R-25 fuse, rated at 25A and 600V, features a time delay blow characteristic. With a compact body size of 10.3mm x 38.1mm, it is ideal for circuit protection in various applications requiring a high breaking capacity of 200kA. The fuse is designed with nickel terminal finish and meets CE, CSA, and UL standards for reliable performance.
KTK-R-20
Cooper Industries
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 20 A; Terminal Shape: END CAP; Terminal Finish: Nickel (Ni);
DFJ-250
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 450 V; Rated Current: 250 A; Terminal Shape: TAB/BLADE;
0287005.L
Littelfuse
Littelfuse 0287005.L fuse has a Nominal Joule Integral of 26 J, Trip Time of 0.08 sec, and Rated Current of 5 A. It is used for circuit protection in applications requiring a rated DC voltage of 32 V, with dimensions of 19.1mm x 5.1mm x 12.3mm and terminal shape TAB/BLADE.
ANN-80
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 125 V; Rated DC Voltage: 80 V; Rated Current: 80 A; Terminal Shape: TAB/BLADE;
FNQ-R-1-1/4
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 1.25 A; Terminal Shape: END CAP; Packing Method: BOX;
0273.500H
Littelfuse 0273.500H is a MICRO fuse with 0.5A rated current, 125V AC/DC voltage, and very fast blow characteristic. It has a trip delay of 14400s and nominal joule integral of 0.0716J. Ideal for circuit protection in applications requiring high breaking capacity and through-hole mounting.
JLLS050.T
Littelfuse JLLS050.T fuse, rated 50A/600V, fast blow characteristic. Ideal for electric circuit protection with 200kA breaking capacity. Suitable for inline mounting in CE/CSA/UL compliant applications.
0451.125MRL
Littelfuse 0451.125MRL is a NANO fuse with 0.125A rated current and 125V DC/AC voltage. It has a very fast blow characteristic, gold terminal finish, and CSA/UL reference standards. Ideal for electric circuit protection in applications requiring surface mounting feature.
50NHG000B
The Eaton Corporation 50NHG000B fuse is rated for 500V AC with a 50A current and 120,000A breaking capacity. It has a nominal joule integral of 5900J and features TAB/BLADE terminals. This electric fuse, compliant with CE, DIN, IEC, VDE standards, is commonly used for circuit protection in various applications.
LP-CC-1/2
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: .5 A; Terminal Shape: END CAP;
LPJ-10SP
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 10 A; Terminal Shape: END CAP;
BD40
The Eaton Corporation BD40 fuse offers 1400J nominal joule integral, 550V AC voltage rating, and 40A current rating. Ideal for electric circuit protection in various applications with its inline/holder mounting feature and compliance with BS and IEC standards.
LPJ-400SPI
Eaton Corporation's LPJ-400SPI fuse, rated at 400A and 600V AC/300V DC, features a J class with time delay blow characteristic. With a compact body size of 53.6mm x 38.3mm, it is suitable for inline mounting applications requiring electric circuit protection and has built-in indicator features.
3410.0035.01
Schurter Ag
Schurter Ag's 3410.0035.01 fuse is a 1206 size with 2A current rating, suitable for electric circuit protection at 125V AC/DC. It has super-fast blow characteristic, rated breaking capacity of 50A, and operates b/w -55°C to 150°C. Ideal for surface mount applications requiring high joule integral (0.089 J) fuses.
FWP-63A22F
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 700 V; Rated DC Voltage: 500 V; Rated Current: 63 A; Terminal Shape: END CAP;
C10G32
The Eaton Corporation C10G32 fuse is a 32A electric fuse with a rated AC/DC voltage of 400V. It has a body size of 10mm x 38mm and an end cap terminal shape, meeting IEC standards. Ideal for inline mounting applications requiring circuit protection with a high breaking capacity of 120kA.
DFJ-175
DFJ-175 by Eaton Corp is a 600V, 175A fast blow electric fuse with 200kA breaking capacity. Measuring 41.4mm x 76.2mm, it has TAB/BLADE terminals and mounts inline/holder. Ideal for circuit protection in various applications meeting CSA and UL standards.
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KLB40
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 40 A; Terminal Shape: TAB/BLADE;
KLB400
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 200 V; Rated Current: 400 A; Terminal Shape: TAB/BLADE;
KLB45
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 45 A; Terminal Shape: TAB/BLADE;
KLB450
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 200 V; Rated Current: 450 A; Terminal Shape: TAB/BLADE;
Supply Digital Components
$106.00
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