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.
Choose from over than a million of proven quality materials. Over 300 manufacturers are presented. From renowned major international players to small independent companies with a proven track record in local markets.
Featured manufacturers
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;
Median Price
-
Lifecycle Status
Suppliers In-Stock
0
In-Stock Inventory
< 1k
Northwest PG Solutions
1+ parts
100+ parts
1k+ parts
10k+ parts
Native Components
Reed Relays HE721C1220 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 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:
Dimensions:
PCB Hole Count:
Terminal Count:
Terminal Length:
Mounting Type:
Packing Method:
Sealing Type:
Industry Standard Compliance:
HE721C1220 Relays trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.49.00.50
SB
NSN
5945-01-376-7915, 5945013767915
NIIN
013767915
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.
CSNF651
Honeywell Sensing And Control
CSNF651 by Honeywell Sensing And Control is an industrial-grade analog circuit with 3 terminals. It operates b/w -40 to 85°C, supporting supply voltages from -15V to 15V. Ideal for applications requiring a special shape rectangular package style and through-hole terminal form.
M24308/2-1F
Cinch Connectivity Solutions
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Dielectric Withstanding Voltage (V): 1750VAC; No. of Connectors: ONE; Body Depth: .375 inch;
1N4148
Hy Electronic
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
1N4148WS
Vishay Semiconductors
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
EU2B-YS3303C
Idec
ROTARY SWITCH;
BAV99
MICRODIODE ELECTRONICS SHENZHEN CO LTD
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
Tesla Elektronicke Soucastky
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
2N7002-7-F
SPC TECHNOLOGY/ MULTICOMP
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Terminal Form: GULL WING; Package Shape: RECTANGULAR;
USB3320C-EZK-TR
Standard Microsystems
INTERFACE CIRCUIT; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 32; Package Code: HVQCCN; Package Shape: SQUARE;
General Semiconductor
BSS84-7-F
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Package Shape: RECTANGULAR; Transistor Element Material: SILICON;
LM107H/883
National Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Technology: BIPOLAR;
LL4148
Shanghai Lunsure Electronic Technology
RECTIFIER DIODE; Surface Mount: YES; Maximum Forward Voltage (VF): 1 V; Maximum Non Repetitive Peak Forward Current: .5 A; No. of Elements: 1; Maximum Reverse Recovery Time: .004 us;
LM358AN
Samsung
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
Texas Instruments
1N4148 by Texas Instruments is a rectifier diode with max reverse recovery time of 0.004 us and max forward voltage of 1V. Ideal for applications requiring low reverse current such as signal demodulation circuits. Operates at max temp of 200°C, making it suitable for high-temperature environments.
LM358N
Philips Semiconductors
Toshiba
2N7002
Siliconix
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Drain Current (ID): .115 A; Operating Mode: ENHANCEMENT MODE;
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
BAT54C-7-F
Diodes Incorporated
BAT54C-7-F by Diodes Inc. is a Schottky rectifier diode with common cathode, 2 elements, and max forward voltage of 0.24V. Ideal for applications requiring fast reverse recovery time of 0.005 us, such as in small outline packages for surface mount technology at temperatures ranging from -65 to 150°C.
2372-12-000
Coto Technology
The Coto Technology 2372-12-000 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.
HE3621-A-12-10
Littelfuse
HE3621-A-12-10 by Littelfuse is a SPST dry reed relay with 0.5 ms operate time and 5.08 inch width. It is hermetically sealed, operates at 8V DC, and has a max contact rating of 0.5A@200VDC. Ideal for applications requiring momentary relay action in compact spaces.
DAT200-12
Cynergy3 Components
DAT200-12 by Cynergy3 Components is a 1 FORM A SPST reed relay with an operate time of 6ms and electrical life of 1M cycles. With a coil voltage of 12V, it's ideal for applications requiring fast switching in AC/DC circuits up to 2500V, such as industrial automation and telecommunications systems.
KT24-1A-40L-THT
Meder Electronic Ag
DRY REED RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Maximum Contact AC Rating (R Load): 1A@1000VAC;
HE721C2410
Hamlin Electronics Europe
JWD-171-27
TE Connectivity
TE Connectivity's JWD-171-27 Reed Relay, DPST with 2 FORM A, operates in 1.5ms and has an electrical life of 1000000 cycles. With a max contact DC power rating of 10W@20VDC, it is suitable for applications requiring momentary relay action and PCB hole count of 8.
9007-05-00
The Coto Technology 9007-05-00 Reed Relay features SPST function, 0.5ms operate time, and 10W@200VDC power rating. Ideal for applications requiring momentary relay action with a max DC contact current of 0.5A@200VDC.
9007-12-01
Coto Technology's 9007-12-01 Reed Relay features SPST function, 0.5ms operate time, and 10W@200VDC power rating. Ideal for applications requiring momentary relay action in electronics with a need for hermetically sealed, high-performance components.
9852-05-00
Coto Technology's 9852-05-00 Reed Relay is a SPDT type with 1 FORM C form, operating at 1ms. With hermetically sealed sealing and gold terminal finish, it has an electrical life of 100M cycles. Ideal for applications requiring momentary relay action in AC/DC contact supply types.
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.
HE721C0530
HE721C0530 by Littelfuse is a SPDT Reed Relay with 3ms operate time, 5W@175VDC power rating. Ideal for applications requiring momentary relay action, such as in PCBs for DC supply switching control. With hermetically sealed body and 10000000000 ohm insulation resistance, it ensures reliable performance in temperatures ranging from -40 to 85 °C.
HE722A0550
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;
HE722A0500
HE722A0500 by Littelfuse is a DPST Reed Relay with 2 FORM A, operate time of 1ms, and max contact DC power rating of 10W@200VDC. Ideal for applications requiring momentary relay action in AC/DC supply type circuits. With hermetically sealed body, it offers high insulation resistance of 10000000000 ohm.
HE3621A0540
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;
HM24-1A69-300
Standex-meder Electronics
HM24-1A69-300 by Standex-Meder Electronics is a 1 FORM A SPST reed relay with 3ms operate time and MBB relay action. It has a coil resistance of 600 ohm, operates at 24V nominal coil voltage, and can handle up to 3A@10000VAC. Ideal for applications requiring fast switching in AC/DC circuits with high insulation resistance.
9814-05-00
The Coto Technology 9814-05-00 Reed Relay is a SPST type with 1 FORM A, 0.25ms operate time, and 1000000000 cycle electrical life. It is hermetically sealed, suitable for momentary relay action applications in various industries due to its high insulation resistance of 1000000000000 ohm and compact dimensions of 10.16mm x 5.26mm x 4.57mm.
DAT71210P
Cynergy3 Components DAT71210P is a SPST Reed Relay with 1 FORM A, 3ms operate time, and 1000000000 cycle electrical life. Ideal for applications requiring MBB relay action, it has a coil resistance of 150 ohm and operates at temperatures from -20 to 70 °C.
DAR72410F-HR
The Cynergy3 Components DAR72410F-HR is a 1 FORM A SPST reed relay with an operate time of 3ms and electrical life of 1000000 cycles. It has a max AC contact current of 3A@1000VAC, making it suitable for applications requiring high-speed switching in industrial control systems. With a compact body size of 60mm x 15.8mm x 18.5mm, it is ideal for use in telecommunications equipment and test instruments due to its reliable performance and long lifespan.
MSS41A12B
Comus International
The Comus International MSS41A12B is a SPST reed relay with 1 FORM A configuration. It operates at 12V nominal coil voltage and has a max contact DC rating of 2A@500VDC. With dimensions of 19mm x 6.8mm x 7.4mm, it is suitable for applications requiring high insulation resistance and fast operate/release times.
HE3621A6786
DRY REED RELAY;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
HE721C0510
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
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
Quantity
12,000 In-Stock
Total price ≈ $80,197.29
© 2023 All rights reserved