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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Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Maximum DC Contact Current: .25 A; No. of Terminals: 4; Maximum Contact DC Power Rating (R Load): 5W@175VDC;
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$1.089
Other Function Relays HE721E0540 attributes and parameters. Explore more Other Function Relays devices from Littelfuse
Relay Function:
Relay Form:
Coil Resistance:
Coil Nominal Voltage:
Coil DC Operating Voltage:
Coil Maximum DC Voltage:
Coil DC Release Voltage:
Contact Maximum DC Current:
Contact Maximum DC Voltage:
Contact Maximum DC Rating (R Load):
Contact Maximum DC Power Rating (R Load):
Contact Resistance:
Height:
Length/Diameter:
Widh:
Dimensions:
Terminal Length:
PCB Hole Count:
Input Switching Mechanism:
Terminal Count:
Termination Type:
Minimum Operating Temperature:
Maximum Operating Temperature:
Activation Time:
Release Time:
Coil-Contact Dielectric Strength:
Open Contacts Dielectric Strength:
Insulation Resistance:
Sealing Method:
Coil/Input Supply Voltage Type:
HE721E0540 Relays trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.49.00.50
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.
LL4148
Daco Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148WS
Eic Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BAV99WT1G
Onsemi
BAV99WT1G by Onsemi is a series connected diode with 0.006 us reverse recovery time. It is a small outline rectifier diode with 70V peak reverse voltage, ideal for surface mount applications in electronics requiring fast switching and low forward voltage drop.
LM317T
Analog Devices
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; No. of Functions: 1; Package Body Material: PLASTIC/EPOXY; Surface Mount: NO;
TM4C1294NCPDTI3
Texas Instruments
TM4C1294NCPDTI3 by Texas Instruments is a 32-bit microcontroller with Cortex-M4F CPU family. It features 8KB data EEPROM, 20-Ch 12-Bit ADC channels, and 32 DMA channels. Ideal for industrial applications requiring high-speed processing, it offers connectivity options like CAN, Ethernet, I2C, SPI, UART, and USB.
STM32H743ZIT6
STMicroelectronics
STM32H743ZIT6 by STMicroelectronics is a 32-bit microcontroller with integrated cache and a max supply voltage of 3.6V. It is commonly used in industrial applications, offering features such as 21 timers, CAN and USB connectivity, and low power mode.
2N2222A
Nte Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 1 W; Maximum Collector Current (IC): .8 A; Terminal Form: WIRE;
2N7002-T1-E3
Vishay Intertechnology
Vishay Intertechnology's 2N7002-T1-E3 is a N-CHANNEL FET for SWITCHING applications. Features include 60V DS Breakdown Voltage, 0.115A Drain Current, and 7.5 ohm On Resistance. With ENHANCEMENT MODE operation, this GULL WING transistor is ideal for small outline surface mount designs up to 150°C.
New England 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
Gec Plessey Semiconductors
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Weitron Technology
RECTIFIER DIODE; Surface Mount: NO; Maximum Reverse Recovery Time: .004 us; Config: SINGLE; Maximum Output Current: .15 A; Terminal Finish: Tin/Lead (Sn/Pb);
SS14
Sangdest Microelectronics (Nanjing)
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
M39029/58-360
Positronic Industries
CONNECTOR ACCESSORY; MIL-Connector Accessory Name: CONTACT; DIN Conformity: NO; National Stock Number (NSN): 5999004733551; Mating Contacts: M39029/56-348, M39029/57-354; Contact Type: CRIMP REAR RELEASE;
2N7002
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Terminal Finish: Matte Tin (Sn) - annealed; Transistor Element Material: SILICON;
Promax-johnton
Jiangsu Changjiang Electronics Technology
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Operating Mode: ENHANCEMENT MODE; Transistor Application: SWITCHING;
1N4148WT
Formosa Microsemi
LM358AN
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
Pro-an Electronic
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
G730-ROC04DC24
Omron
Other Relays;
HE721E1240
Littelfuse
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Nominal Coil Voltage: 12 V; Termination Type: SOLDER; Operate Time: 1 ms;
G2R-2A-ZDC12
Other Relays; Relay Action: LATCHED; Relay Function: SPDT; Coil or Input Supply Type: DC; Reference Standard: CSA; TUV; UL; VDE; Minimum Operating Temperature: -40 Cel;
HE752R0550
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; PCB Hole Count: 8; DC Coil Operate Voltage: 3.75 V; Maximum Operating Temperature: 85 Cel;
G5V-1-DC5V
Omron G5V-1-DC5V is a 1 FORM C SPDT relay with 5ms operate time, 100000 cycle electrical life, and 1000000000 ohm insulation resistance. It is ideal for AC/DC contact or output supply applications due to its 1A@125VAC max contact rating and compact size of 12.5mm x 7.5mm x 10mm.
40.61.9.024.0000
Finder
Finder 40.61.9.024.0000 relay features SPDT function, 1 FORM C form, and operates in 7ms with a coil resistance of 900 ohm. Ideal for AC applications with max contact current of 16A@250VAC and release time of 3ms. Measuring at 29mm x 12.4mm x 25mm, it's suitable for various industrial control systems requiring reliable switching capabilities.
G2R-1200AC
Other Relays; Relay Action: LATCHED; Relay Function: SPDT; Coil or Input Supply Type: AC; Release Time: 10 ms; Maximum AC Coil Voltage: 220 V;
IM01CGR
TE Connectivity
TE Connectivity's IM01CGR is a DPDT relay with 2 FORM C, operate time of 3 ms, and max contact DC power rating of 60W@220VDC. Ideal for AC/DC applications requiring high insulation resistance (1T ohm) and hermetical sealing. With gold alloy plating, it offers reliable switching control in a compact size (10x6x5.65 mm).
HE722R1230
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Relay Form: 1 FORM C; Terminal Length: .1181 inch; Operate Time: 1 ms;
LY2Z-0
G4W-1112P-US-TV8-HP
HE751C1220
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Body Height: 7.5 mm; Nominal Coil Voltage: 12 V; Maximum DC Coil Voltage: 31 V;
MY2IN
LY2N-D2-12VDC
Other Relays; Relay Function: DPDT; Coil or Input Supply Type: DC; Reference Standard: CE; CSA; TUV; UL; Maximum Operating Temperature: 40 Cel; Maximum Contact DC Rating (R Load): 15A@125VDC;
HE1AN-Q-AC120V
Aromat
HE221B1250
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Maximum DC Contact Current: .5 A; Body Length/Diameter: 32.5 mm; Contact Resistance: 150 mohm;
UD2-12SNU-L
World Products
Other Relays; Relay Action: LATCHED; Relay Function: DPDT; Coil or Input Supply Type: DC; Reference Standard: CSA; TUV; UL; Maximum AC Contact Current: 1 A;
MJN3CF-N-AC120
G7L-2A-B-UB80CB-AC200/240
HE752R1230
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Physical Dimension: 19.05mm x 7.24mm x 7.5mm; DC Coil Operate Voltage: 8 V; DC Coil Release Voltage: 1 V;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
HE721E2450
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Maximum DC Contact Current: .25 A; DC Coil Operate Voltage: 16 V; Coil Resistance: 2000 ohm;
HE721B2440
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Contact Resistance: 150 mohm; DC Coil Release Voltage: 2 V; Insulation Resistance: 10000000000 ohm;
HE721B1220
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Maximum DC Contact Voltage: 200 V; Input Switching Control Type: Random; Maximum Contact DC Power Rating (R Load): 10W@200VDC;
HE721E2410
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Contact Resistance: 200 mohm; PCB Hole Count: 4; Termination Type: SOLDER;
HE721B2420
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Insulation Resistance: 10000000000 ohm; Release Time: 1 ms; Maximum Contact DC Power Rating (R Load): 10W@200VDC;
HE722A0530
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Body Length/Diameter: 19.05 mm; Maximum Contact DC Power Rating (R Load): 10W@200VDC; DC Coil Release Voltage: .5 V;
HE721B0540
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Coil Resistance: 500 ohm; Physical Dimension: 20.19mm x 7.62mm x 7.75mm; Maximum Contact DC Rating (R Load): 0.5A@200VDC;
HE721B2450
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Dielectric Strength Between Open Contacts: 250 Vrms; Body Width: 7.62 inch; Relay Form: 1 FORM B;
HE721B1230
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Body Width: 7.24 inch; Termination Type: SOLDER; Coil Resistance: 1000 ohm;
HE721E1250
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Dielectric Strength Between Open Contacts: 200 Vrms; Insulation Resistance: 1000000000 ohm; Maximum Contact DC Rating (R Load): 0.25A@175VDC;
HE721E0550
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Physical Dimension: 20.19mm x 7.62mm x 7.75mm; Maximum Contact DC Rating (R Load): 0.25A@175VDC; Nominal Coil Voltage: 5 V;
HE721B1250
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Relay Form: 1 FORM B; Maximum DC Contact Voltage: 200 V; Maximum Contact DC Rating (R Load): 0.5A@200VDC;
HE721E2440
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Maximum DC Contact Voltage: 175 V; Maximum Contact DC Rating (R Load): 0.25A@175VDC; Terminal Length: .1181 inch;
HE721B1210
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Nominal Coil Voltage: 12 V; Dielectric Strength Between Open Contacts: 250 Vrms; Maximum DC Coil Voltage: 14 V;
HE721B2430
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; DC Coil Release Voltage: 2 V; Termination Type: SOLDER; Coil Resistance: 2150 ohm;
HE721B0520
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Release Time: 1 ms; Dielectric Strength Between Coil & Contacts: 500 Vrms; Coil Resistance: 500 ohm;
HE721B0550
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Maximum DC Coil Voltage: 6.5 V; Contact Resistance: 150 mohm; PCB Hole Count: 4;
HE721B1240
Other Relays; Relay Function: SPST; Coil or Input Supply Type: DC; Contact Resistance: 150 mohm; Body Width: 7.62 inch; Coil Resistance: 1000 ohm;
HE721E0510
Hamlin Electronics Europe
Other Relays; Relay Function: SPDT; Coil or Input Supply Type: DC; Maximum DC Coil Voltage: 14 V; Nominal Coil Voltage: 5 V; Release Time: 1 ms;
Supply Digital Components
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