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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DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Reference Standard: CUL; UL;
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$2.937
Reed Relays HE721A0540 attributes and parameters. Explore more Reed Relays devices from Littelfuse
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HE721A0540 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.
EU2B-YS3303C
Idec
ROTARY SWITCH;
LM107H/883
Rochester Electronics
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Maximum Average Bias Current (IIB): .1 uA;
BAV99
Shanghai Lunsure Electronic Technology
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
BSS138
Inter F E T
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Terminal Finish: TIN LEAD; Package Body Material: PLASTIC/EPOXY;
1N4148WT
Yangzhou Yangjie Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Changzhou Galaxy Century Microelectronics
RECTIFIER DIODE; Surface Mount: NO; Config: SINGLE; Peak Reflow Temperature (C): 260; No. of Phases: 1; Diode Element Material: SILICON;
LM358MX
Fairchild Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
M24308/2-1F
Positronic Industries
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Additional Features: STANDARD: MIL-DTL-24308, POLARIZED; Body or Shell Style: RECEPTACLE;
Zetex Plc
SS14
Promax-johnton
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Pro-an Electronic
LM7805CT
Comset Semiconductors
Other Regulators; No. of Terminals: 3; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %; Operating Temperature (TJ-Min): 0 Cel; Technology: BIPOLAR;
2N2222A
ROHM
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .6 A;
1N5819HW-7-F
Diodes Incorporated
1N5819HW-7-F by Diodes Inc. is a Schottky rectifier diode with 40V reverse test voltage, 1A output current, and 0.75V forward voltage. It's a surface mount device in a small outline package ideal for efficiency applications at temperatures ranging from -65 to 125°C.
LM317T/NOPB
National Semiconductor
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; JESD-609 Code: e3; Package Shape: RECTANGULAR;
Tak Cheong Electronics Holdings
Texas Instruments
LM358MX by Texas Instruments is a dual operational amplifier with a max input offset voltage of 9000 uV. It has a nominal voltage of 5V and a min voltage gain of 15000. This op amp is commonly used in applications requiring amplification and signal conditioning.
CDSOT23-SM712
Bourns
Bourns CDSOT23-SM712 is a bidirectional Transient Voltage Suppressor diode with 400W peak power dissipation and 20uA reverse current. Ideal for surge protection in applications requiring a max clamping voltage of 14V, such as IEC-61000-4-2 compliant systems. Operates b/w -55°C to 150°C with matte tin finish and Gull Wing terminals.
C1206C104K5RACTU
KEMET Corporation
KEMET C1206C104K5RACTU is a ceramic capacitor with 0.1uF capacitance and 50V rated DC voltage. It has X7R temperature characteristics, -55 to 125 °C operating range, and ±10% tolerance. Ideal for SMT applications due to its rectangular package shape and wraparound terminals.
Semiconductors
RECTIFIER DIODE; Surface Mount: NO; Maximum Repetitive Peak Reverse Voltage: 100 V; Config: SINGLE; No. of Phases: 1; No. of Elements: 1;
DIP05-1A72-12D
Standex-meder Electronics
DIP05-1A72-12D by Standex-Meder Electronics is a SPST reed relay with 0.5ms operate time and 1000000000 cycle electrical life. It is waterproof, momentary, and has a max operating temperature of 70°C. Ideal for AC/DC applications requiring a 1A@200VAC contact rating in a compact form factor of 19.3mm x 7mm x 7.5mm.
HE721A2430
Littelfuse
2372-05-000
Coto Technology
The Coto Technology 2372-05-000 is a DPDT Reed Relay with 1.5ms operate time and 100000000 cycle electrical life. It has a max contact DC power rating of 3W@100VDC, making it suitable for applications requiring high reliability switching in industrial control systems.
HE72-1-C-05-20
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPDT; Coil or Input Supply Type: DC; Reference Standard: CUL; UL;
JWD-107-7
Tyco Electronics Elcon
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MBB; Relay Function: SPST; Coil or Input Supply Type: DC; Reference Standard: CSA; UL;
CRR05-1AS
Meder Electronic Ag
DRY REED RELAY; Mounting Feature: SURFACE MOUNT-STRAIGHT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Release Time: .02 ms;
DAT72410F
Cynergy3 Components
DAT72410F by Cynergy3 Components is a 1 FORM A SPST reed relay with an operate time of 3ms and electrical life of 1B cycles. It has a max AC contact current of 2A@7000VAC, making it suitable for applications requiring high voltage switching in industrial automation and power distribution systems. With dimensions of 60mm x 15.8mm x 18.5mm, this DRY REED RELAY offers reliable performance with low contact resistance and high insulation resistance.
MS05-1A87-75DHR
MS05-1A87-75DHR by Standex-Meder Electronics is a SPST dry reed relay with 0.5ms operate time and 1000000000 cycle electrical life. It has a max contact rating of 0.5A@200VAC and is ideal for applications requiring momentary relay action in AC/DC circuits.
1393771-6
TE Connectivity
TE Connectivity 1393771-6 is a SPST Reed Relay with 1 FORM A, operate time of 1.5ms, and insulation resistance of 10^10 ohm. Ideal for applications requiring momentary relay action in environments with temperatures ranging from -35 to 85°C.
TE Connectivity's JWD-107-7 Reed Relay features 1 FORM A SPST function, 1.5ms operate time, and 1000000 cycle electrical life. Ideal for applications requiring momentary relay action with a max DC power rating of 10W@20VDC.
HE721A2400
DIP12-1A72-12L
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MBB; Relay Function: SPST; Coil or Input Supply Type: DC; Reference Standard: UL;
HE721A1200
Hamlin Electronics Europe
JWD-171-17
HE721C0510
HE721C0510 by Littelfuse is a SPDT Reed Relay with 3ms operate time, 10000000000 ohm insulation resistance, and 7.22mm body width. Ideal for applications requiring momentary relay action in environments with temperatures ranging from -40 to 85 °C.
MS05-1A87-75D
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Reference Standard: UL;
HE72-1-E-12-20
HE3621A1200
DAR72410P
The Cynergy3 Components DAR72410P is a 1 FORM A SPST reed relay with 3ms operate time and 1000000000 cycle electrical life. With MBB relay action, it has a coil resistance of 780 ohm and is ideal for AC/DC applications requiring up to 3A@1000VAC contact rating.
HE721A0500
HE721A0500 by Littelfuse is a 1 FORM A SPST Reed Relay with 10W@200VDC power rating. It operates at -40 to 85 °C, with 0.01A DC coil current and 0.35A AC contact current. Ideal for applications requiring momentary relay action in PCBs, it offers high insulation resistance of 10000000000 ohm and hermetically sealed body for reliability.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPDT; Coil or Input Supply Type: DC; DC Coil Operate Voltage: 3.75 V;
HE721A1200 by Littelfuse is a 1 FORM A SPST Reed Relay with 10W@200VDC power rating. With 1ms operate time, it's hermetically sealed and ideal for AC/DC supply applications. Featuring 12V nominal coil voltage, it offers high insulation resistance of 10000000000 ohm and dielectric strength up to 500 Vrms.
HE721A0510
HE721C2400
HE721C1210
HE721C1210 by Littelfuse is a SPDT 1 FORM C reed relay with 3ms operate time. With hermetically sealed body, it has 12V nominal coil voltage and operates at -40 to 85°C. Ideal for applications requiring momentary relay action in DC circuits up to 175V.
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPDT; Coil or Input Supply Type: DC; Maximum DC Contact Current: .25 A;
HE721C0500
HE721A2410
HE721A2410 by Littelfuse is a SPST Reed Relay with 1 FORM A, operate time of 1 ms, and insulation resistance of 10^10 ohm. It is hermetically sealed, ideal for applications requiring momentary relay action in electronics with DC supply up to 200V and coil voltage of 24V.
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Maximum Operating Temperature: 85 Cel;
HE721C2410
HE721A1230
HE721A0530
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