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
Littelfuse 0437.250WR is a fast-acting electric fuse with 0.25A rated current and 125V rated voltage. It has a trip time of 5 seconds, making it suitable for circuit protection in applications requiring quick response to overcurrent conditions. With dimensions of 3.2mm x 1.63mm x 0.82mm, this surface mount fuse is ideal for use in electronic devices where space is limited.
Median Price
$0.885
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18
In-Stock Inventory
1k+
Chip1Stop
1+ parts
$0.938
100+ parts
$0.611
1k+ parts
$0.467
10k+ parts
$0.453
Arrow
$1.028
$0.682
$0.534
$0.480
Mouser Electronics
$1.270
$0.740
$0.565
$0.502
DigiKey
$1.470
$0.863
$0.659
-
TTI Europe
$0.490
Future Electronics
$0.645
Newark
Verical
Element14
$0.839
$0.692
Nova Conductors
$0.511
TME
$0.870
$0.640
IBS Electronics
$0.732
Vyrian
NAC Semi
$1.290
Sunrise Surplus Inc.
Rutronik
$0.634
ACDS - Activité Composants Distribution Service
VNN
Ampacity Inc.
$0.348
Argo Parts USA
$0.495
Continental Prestige Electronics
$1.140
$0.767
$0.622
CoreStaff
$1.235
$0.516
$0.468
Corohmni
$2.956
Aztec Data Supply Inc.
$13.503
Perfect Parts
Kepictronics
Authorized Procurement Solutions
Glotronic Ltd.
Netroflash
$0.501
$0.485
$0.475
Low joule integral value provides efficient and effective protection against power surges.
Suitable for use in standard AC voltage applications.
Provides a short delay to allow for temporary surges while still protecting the circuit in case of a sustained fault.
Compact size for easy installation in a variety of electronic devices.
Ideal for low current applications where precision protection is required.
Specifically designed for circuit protection, ensuring the safety of connected devices and components.
Can withstand high temperatures, making it suitable for use in various environments.
Easy to mount on circuit boards or other surfaces, facilitating installation in electronic devices.
Fuses 0437.250WR attributes and parameters. Explore more Fuses devices from Littelfuse
Circuit Protection Type:
Rated Current:
Rated Breaking Capacity:
Rated AC Voltage:
Rated DC Voltage:
Rated Voltage:
Pre Arcing Rating (A2/s):
Body Diameter:
Body Height:
Body Width:
Dimensions:
Blow Characteristic:
Fuse Size/Group:
Trip Time/Delay:
Nominal Joule Integral:
Minimum Operating Temperature:
Maximum Operating Temperature:
Reference Standard:
JESD-609 Code:
Terminal Shape:
Terminal Finish:
Mounting Feature:
Packing Method:
0437.250WR Circuit Protection trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.10.00.40
SB
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.
AT90CAN128-16AUR
Microchip Technology
AT90CAN128-16AUR by Microchip: 16 MHz clock, 8-bit data RAM, and 131072 ROM words. Ideal for industrial applications with CAN, SPI, TWI connectivity and low power mode. Contains 4 timers, 8 ADC channels, and supports up to 10-bit analog to digital conversion.
NDT2955
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 3 W; Package Style (Meter): SMALL OUTLINE; Maximum Drain Current (Abs) (ID): 2.5 A;
SS14
Rugao Dachang Electronic
RECTIFIER DIODE; Surface Mount: YES; Maximum Repetitive Peak Reverse Voltage: 40 V; Maximum Forward Voltage (VF): .55 V; No. of Elements: 1; Technology: SCHOTTKY;
LM555CMX
Onsemi
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
2N7002
North American Philips Discrete Products Div
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Operating Mode: ENHANCEMENT MODE; Maximum Drain Current (ID): .115 A;
1N4148WS
Daco Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
Asi Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
BAV99
Good-ark Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Transys Electronics
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
MICRODIODE ELECTRONICS SHENZHEN CO LTD
LM358AN
Signetics
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
Comchip Technology
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Operating Temperature: 150 Cel; Operating Mode: ENHANCEMENT MODE;
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
International Components
RECTIFIER DIODE; Surface Mount: NO; No. of Elements: 1; Terminal Finish: Tin/Lead (Sn/Pb); JESD-609 Code: e0; Maximum Reverse Recovery Time: .004 us;
ATMEGA328P-AU
ATMEGA328P-AU by Microchip: 8-bit RISC CPU, 20 MHz clock, 23 I/O lines. Ideal for industrial applications with SPI, TWI, USART connectivity and low power mode. Features include 2048 RAM bytes, 1024 EEPROM size, and 16384 ROM words.
LM358MX
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
Taitron Components
FDLL4148
1N4148WT
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
3403.0277.23
Schurter Ag
The Schurter Ag 3403.0277.23 fuse is a time lag electric fuse with a rated current of 2A and a max operating temperature of 125°C. It has a nominal joule integral of 9.6J and is suitable for circuit protection in applications requiring a rated AC voltage of 277V and rated DC voltage of 250V.
3403.0019.11
Schurter Ag 3403.0019.11 fuse, rated 2A and 250V, with dimensions of 11x4.6x3.9mm, is a very fast-acting electric fuse suitable for circuit protection in various applications. It has a nominal joule integral of 1.4J and a rated breaking capacity of 100A, meeting CUL, UL, and VDE standards for reliable performance in extreme temperatures from -55 to 125°C.
LP-CC-25
Cooper Industries
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 25 A; Terminal Shape: END CAP;
JJS-60
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 60 A; Terminal Shape: END CAP; Body Height: 39.7 mm;
FWX-35A
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 35 A; Terminal Shape: TAB/BLADE;
SC-40
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 480 V; Rated DC Voltage: 300 V; Rated Current: 40 A; Terminal Shape: END CAP;
0273.500H
Littelfuse
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.
KTK-R-1
Cooper Electronic Technologies
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 1 A; Terminal Shape: END CAP; Blow Characteristic: FAST;
FNQ-R-12
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 12 A; Terminal Shape: END CAP;
FWS-10A20F
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 1400 V; Rated DC Voltage: 1000 V; Rated Current: 10 A; Terminal Shape: END CAP;
JJS-50
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 50 A; Terminal Shape: END CAP; Reference Standard: CSA; UL;
442
Uchihashi Estec
THERMAL FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 50 V; Rated Current: 3.5 A; Terminal Shape: WIRE;
0473003.MRT1L
Littelfuse 0473003.MRT1L PICO fuse with 3A current, 125V AC/DC voltage rating, and 21J joule integral. Ideal for circuit protection in applications requiring time delay blow characteristic and rated breaking capacity of 50A. Dimensions of 3.43mm x 7.11mm make it suitable for through-hole mounting in various electronic devices.
FNQ-R-25
0216002.MXP
Littelfuse 0216002.MXP fuse, rated at 2A and 250V, offers fast blow characteristic with trip time of 0.02s. Ideal for circuit protection in applications requiring a compact 5x20mm size fuse with nickel terminal finish. Operating temperature range from -55 to 125°C ensures reliable performance in various environments.
LPJ-70SP
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 70 A; Terminal Shape: TAB/BLADE;
A214107
Mersen S A
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 400 V; Rated DC Voltage: 250 V; Rated Current: 32 A; Terminal Shape: END CAP;
170M2619
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 700 V; Rated Current: 315 A; Terminal Shape: TAB/BLADE; Nominal Joule Integral: 10000 J;
LP-CC-2-8/10
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 2.8 A; Terminal Shape: END CAP;
BK/ATC-30
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated DC Voltage: 32 V; Rated Current: 30 A; Terminal Shape: TAB/BLADE; Body Width: 5.25 inch;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
0437001.WR
Littelfuse 0437001.WR is a fast blow fuse with 1A rated current, 63V DC voltage, and 0.1J nominal joule integral. Ideal for circuit protection in electronics, it has a compact size of 1206 and WRAPAROUND terminals. Operating temperature ranges from -55°C to 150°C.
0437.500WR
Littelfuse 0437.500WR is a fast-blow electric fuse with 0.5A rated current and 63V rated voltage, suitable for circuit protection in various applications. With dimensions of 3.2mm x 1.63mm x 0.82mm, it has a trip time of 5s and nominal joule integral of 0.018J, meeting CSA, CUL, and UL standards.
0437002.WR
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 63 V; Rated DC Voltage: 63 V; Rated Current: 2 A; Terminal Shape: WRAPAROUND;
043701.5WR
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 63 V; Rated DC Voltage: 63 V; Rated Current: 1.5 A; Terminal Shape: WRAPAROUND;
0437001.WRA
Littelfuse 0437001.WRA fuse, rated at 1A and 63V DC, with fast blow characteristic. Suitable for electric circuit protection in automotive applications. Surface mountable with WRAPAROUND terminals, meeting AEC-Q200, CSA, CUL, and UL standards.
043701.5WRA
0437002.WRA
Littelfuse 0437002.WRA fuse has a rated current of 2A and fast blow characteristic. It is a surface mount type with terminal shape wraparound, suitable for electric circuit protection at temperatures ranging from -55°C to 150°C. Commonly used in automotive electronics due to AEC-Q200, CSA, CUL, and UL certifications.
04371.75WR
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 63 V; Rated DC Voltage: 63 V; Rated Current: 1.75 A; Terminal Shape: WRAPAROUND;
0437003.WR
Littelfuse 0437003.WR is a 1206 size fuse with 3A rated current and fast blow characteristic. It has a rated voltage of 35V, trip time of 1s, and nominal joule integral of 0.506J. Ideal for circuit protection in applications requiring surface mount fuses with WRAPAROUND terminals.
0437007.WR
Littelfuse 0437007.WR is a fast-acting electric fuse with 5.02J joule integral, rated for 32V AC and 35V DC. It has a trip time of 1s, suitable for circuit protection in various applications requiring a compact 1206 size surface mount fuse with WRAPAROUND terminals.
0437004.WR
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 45 V; Rated DC Voltage: 63 V; Rated Current: 4 A; Terminal Shape: WRAPAROUND;
0437004.WRA
043702.5WR
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 45 V; Rated DC Voltage: 63 V; Rated Current: 2.5 A; Terminal Shape: WRAPAROUND;
04370.250WRA
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 125 V; Rated DC Voltage: 125 V; Rated Current: .25 A; Terminal Shape: WRAPAROUND;
0437005.WR
Littelfuse 0437005.WR fuse, rated 5A and 35V, with fast blow characteristic and trip time of 1s. Ideal for circuit protection in electronics with surface mounting feature. Dimensions: 3.2mm x 1.63mm x 0.82mm, suitable for applications requiring compact size fuses.
043702.5WRA
0437005.WRA
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 45 V; Rated DC Voltage: 63 V; Rated Current: 5 A; Terminal Shape: WRAPAROUND;
0437007.WRA
ELECTRIC FUSE; Mounting Feature: SURFACE MOUNT; Rated AC Voltage: 32 V; Rated DC Voltage: 35 V; Rated Current: 7 A; Terminal Shape: WRAPAROUND;
0437001.5WRA
ELECTRIC FUSE;
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