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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HE721C0500 by Littelfuse is a SPDT reed relay with 3ms operate time, 5W@175VDC power rating, and 10000000000 ohm insulation resistance. Ideal for applications requiring momentary relay action in environments with temperatures ranging from -40 to 85 °C.
Median Price
$3.802
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Future Electronics
$3.100
$2.990
$2.870
Farnell
$3.110
$2.470
Arrow
$2.916
$2.476
Mouser Electronics
$3.990
$3.160
$2.810
DigiKey
$3.169
$2.821
RS Americas
$4.230
$3.850
$3.720
Element14
$4.733
$3.583
$3.310
Chip1Stop
$5.050
$2.550
$2.230
TTI
$2.540
Newark
Master Electronics
$3.060
$2.430
$2.100
Verical
$5.562
Freelance Electronics
$2.792
Nova Conductors
$2.818
Component Electronics Inc.
$2.880
$2.500
IBS Electronics
$3.887
$3.731
NAC Semi
$6.350
$5.860
Vyrian
ACDS - Activité Composants Distribution Service
Dan-Mar Components
ComSIT Distribution GmbH
Electronics Depot
J & M Industries LLC
Prism Electronics
Sensible Micro Corp
GES GmbH
MISTER SPROCKETS
First Choice Components Inc.
ECAB
PAR Electronics
Inventory MP
PC Components Company LLC
Digital Electronic Gebert Verwaltungs UG
Bristol Electronics
R&J Components
Carlin Systems, Inc.
QIE Inc.
Q Components
Advanced Electronics
$1.724
$1.569
$1.414
Argo Parts USA
$2.580
Component Stockers USA
$3.760
Continental Prestige Electronics
$3.880
Allen Electronics Distributors
$4.650
Perfect Parts
Authorized Procurement Solutions
Glotronic Ltd.
Assy Fe
Computer Components Inc. - USA
4 Star Electronics, Inc. (Excess)
Amble Industries
Cyclops Electronics Ltd (Excess)
Bastille Electronics
Single Pole Double Throw relay function allows for switching between two different circuits, providing versatility in usage.
Fast operation time ensures quick response in switching circuits when needed.
High power rating allows for the relay to handle heavy loads without malfunctioning, making it suitable for various applications.
High insulation resistance ensures proper isolation between circuits, reducing the risk of electrical leakage or short circuits.
With a high maximum operating temperature, this relay can withstand elevated temperatures without compromising its performance.
Strong dielectric strength between open contacts ensures safe operation and reduces the risk of arcing or electrical breakdown.
Compact body size allows for easy installation in space-constrained environments, making it ideal for various electronic applications.
Through hole straight mount design simplifies the installation process, providing a secure and stable connection on the circuit board.
Reed Relays HE721C0500 attributes and parameters. Explore more Reed Relays devices from Littelfuse
Relay Type:
Relay Action:
Relay Function:
Relay Form:
Input Switching Method:
Contact Maximum DC Current:
Contact Maximum DC Voltage:
Contact Maximum DC Rating (R Load):
Contact Resistance:
Coil Maximum DC Voltage:
Contact Maximum AC Current:
Contact Maximum AC Voltage:
Contact Maximum AC Rating (R Load):
Contact Maximum DC Power Rating (R Load):
Coil Resistance:
Coil/Input Supply Type:
Coil Maximum DC Current:
Coil DC Operate Voltage:
Coil DC Release Voltage:
Coil Power:
Coil Nominal Voltage:
Termination Type:
Activation Time:
Release Time:
Minimum Operating Temperature:
Maximum Operating Temperature:
Coil-Contacts Dielectric Strength:
Open Contacts Dielectric Strength:
Insulation Resistance:
Width:
Height:
Length/Diameter:
PCB Hole Count:
Terminal Count:
Terminal Length:
Mounting Type:
Packing Method:
Sealing Type:
Industry Standard Compliance:
HE721C0500 Relays trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.49.00.50
SB
NSN
5945-01-141-4720, 5945011414720, 5945-01-207-1730, 5945012071730
NIIN
011414720, 012071730
PCN Packaging - Reed Relay Packaging 05/Apr/2019 Multiple Devices Packaging/Quantity 05/Jun/2020
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.
1N4148WS
Weitron Technology
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Fairchild Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Time At Peak Reflow Temperature (s): 30; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR;
1N4148
Excel (Suzhou) Semiconductor
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
B340A-13-F
Diodes Incorporated
B340A-13-F by Diodes Inc. is a Schottky rectifier diode with 40V reverse test voltage, 3A max output current, and 0.5V max forward voltage. It is used for efficiency applications in electronics due to its small outline package and high operating temperature range of -55°C to 150°C.
BAV99
Hitano Enterprise
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
SS14+
Multicomp Pro
SS14+ by Multicomp Pro is a Schottky rectifier diode with a max output current of 1A and a reverse test voltage of 40V. It is designed for surface mount applications in electronic circuits, offering a small outline package style and dual terminal position. With a temperature range from -65°C to 150°C, it is suitable for various industrial and consumer electronics.
LL4148
TDK
RECTIFIER DIODE; Surface Mount: YES; Terminal Finish: Tin/Lead (Sn/Pb); No. of Phases: 1; No. of Elements: 1; Maximum Output Current: .2 A;
CRCW06031K00FKEAHP
Vishay Intertechnology
Vishay Intertechnology's CRCW06031K00FKEAHP is a fixed resistor with 1000 ohm resistance, 1% tolerance, and 0.33 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 standard compliance and operating voltage of 75 V.
BSS138K-13
BSS138K-13 by Diodes Inc. is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, operating in enhancement mode. With 3 terminals and 0.31A max drain current, it offers high performance in small outline package style.
ULN-2803A
Sprague Electric
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Temperature Grade: OTHER; Terminal Form: THROUGH-HOLE; No. of Terminals: 18; Package Code: DIP; Package Shape: RECTANGULAR;
2902037
Phoenix Contact
MODULAR TERMINAL BLOCK;
BSS138
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Operating Mode: ENHANCEMENT MODE; Qualification: Not Qualified;
CRCW080510K0FKEA
Vishay Intertechnology's CRCW080510K0FKEA is a fixed resistor with 10000 ohm resistance, 1% tolerance, and 0.125 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 reference standard compliance and -55 to 155 °C operating temperature range.
SMBJ18CA
KYOCERA AVX
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM358AN
Onsemi
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
LM555CM
Intersil
Analog Waveform Generation Functions; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
2N2222A
Vpt Components
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 1 W; Maximum Collector Current (IC): .8 A; Maximum Power Dissipation Ambient: .5 W;
Eic Semiconductor
Compensated Devices
RECTIFIER DIODE; Terminal Position: UPPER; Terminal Form: NO LEAD; No. of Terminals: 1; Surface Mount: YES; Package Shape: SQUARE;
ULN2803ADWR
Texas Instruments
ULN2803ADWR by Texas Instruments is a peripheral driver with 8 functions, open-collector output characteristics, and built-in transient protections. It operates b/w -40 to 85°C, has a max supply voltage of 3V, and is ideal for buffer or inverter-based applications requiring sink current flow direction.
HE223C0650
Littelfuse
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: 3PDT; Release Time: 3 ms; Sealing: HERMETICALLY SEALED;
HE721E0510
HE721E0510 by Littelfuse is a SPDT reed relay with 1 FORM C, operate time of 3ms, and max contact DC power rating of 5W@175VDC. Ideal for applications requiring momentary relay action in environments with temperatures ranging from -40 to 85°C.
HE72-2-A-24-50
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: DPST; Coil or Input Supply Type: DC; Reference Standard: CUL; UL;
DAR72410P
Cynergy3 Components
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.
DIP12-1C90-51L
Meder Electronic Ag
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPDT; Coil or Input Supply Type: DC; Reference Standard: UL;
JWD-107-1
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;
CRF05-1A
Standex-meder Electronics
CRF05-1A by Standex-Meder Electronics is a SPST dry reed relay with 0.6ms operate time and 1000000000 cycle electrical life. It has a max DC coil current of 0.03A, suitable for applications requiring momentary relay action in waterproof environments. With dimensions of 8.6mm x 4.4mm x 3.55mm, it is ideal for surface mount-straight mounting in high-frequency circuits up to 7000MHz.
3-1393763-4
Tyco Electronics Cii
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: BBM; Relay Function: SPDT; Coil or Input Supply Type: DC; Reference Standard: CUL; UL;
HE72-2-A-24-30
HE721C2420
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;
HE72-1-E-05-20
JWD-107-5
TE Connectivity
TE Connectivity's JWD-107-5 Reed Relay, SPST form A, operates in 1.5ms with 1000000 cycle electrical life. With a max contact DC power rating of 10W@20VDC, it is ideal for applications requiring momentary relay action and PCB hole count of 8.
HE721B0500
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;
CRF03-1AS
CRF03-1AS by Standex-Meder Electronics is a 1 FORM A SPST reed relay with 0.1ms operate time. With waterproof sealing, it's ideal for AC/DC applications requiring 0.5A@170VAC contact rating. Measuring 8.6mm x 4.4mm x 3.55mm, this DRY REED RELAY has a coil resistance of 77 ohm and operates at temperatures from -40 to 85 °C.
HE721C2410
HE721C2410 by Littelfuse is a 1 FORM C SPDT Reed Relay with 3ms operate time, suitable for DC power applications up to 5W@175VDC. With hermetically sealed body and 24V nominal coil voltage, it offers high insulation resistance of 10^10 ohm and operates b/w -40°C to 85°C.
DBT71210FU
The Cynergy3 Components DBT71210FU is a 1 FORM B SPST Reed Relay with 2ms operate time and 1000000 cycle electrical life. With a coil resistance of 240 ohm, it operates at 12V nominal voltage. Ideal for AC/DC contact supply applications, this relay has a max contact rating of 2A@7000VAC/DC and is suitable for random switching control types.
HE722A1250
HE3621A1200
HE3621A1200 by Littelfuse is a 1 FORM A SPST dry reed relay with 1ms operate time and 10000000000 ohm insulation resistance. It is hermetically sealed, suitable for momentary applications in DC circuits up to 200V at 0.5A. Operating temperatures range from -40°C to 85°C, making it ideal for various industrial control systems.
7101-05-1110
Coto Technology
Coto Technology's 7101-05-1110 Reed Relay has SPST function, 1 FORM A form, and operates in 1 ms. With a hermetically sealed body and MBB relay action, it is ideal for applications requiring fast response times and high electrical life cycles.
DIP12-2A72-21D
DIP12-2A72-21D by Standex-Meder Electronics is a DPDT reed relay with 2 FORM A, 0.5 ms operate time, and 1000000000 cycle electrical life. It is used in applications requiring MBB relay action, such as AC/DC contact or output supply types and random input switching control.
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HE721C0510
Hamlin Electronics Europe
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;
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.
HE721A1200
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.
HE721A0500
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;
HE721A1230
HE721A0540
HE721C0530
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