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
Rockwell Automation's 440R-EM4R2 is a 4PST safety relay with operate time of 25ms and release time of 150ms. It has IP20/IP40 sealing, operates on DC supply at 24V, and mounts on DIN-rail. Ideal for applications requiring fast response times in industrial automation systems.
Median Price
$265.073
Lifecycle Status
Suppliers In-Stock
6
In-Stock Inventory
< 1k
RS (Exports)
1+ parts
100+ parts
-
1k+ parts
10k+ parts
Nova Conductors
$236.120
TME
$252.760
PLC Direct
$316.580
Quotebeam
$330.750
Vyrian
Aztec Data Supply Inc.
$1.630
AZTECH Wire
$9.560
$9.180
$9.000
$8.820
Corohmni
$218.750
Continental Prestige Electronics
$231.398
Netroflash
Advanced Electronics
$277.078
$254.911
$238.860
Argo Parts USA
RLX Solution Inc. (Excess)
Allows the relay to control multiple circuits simultaneously, providing versatile functionality.
Ensures quick response time for activating the relay, ideal for applications where speed is crucial.
Provides protection against dust and limited ingress of water, making it suitable for a variety of environments.
Can withstand high temperatures without compromising performance, increasing reliability.
Efficiently operates with low power consumption, reducing energy costs.
Ensures timely disconnection of circuits, enhancing safety measures.
Facilitates easy installation on standard DIN rails, saving time and effort during setup.
Works with common DC power sources, ensuring compatibility with existing systems.
Special Function Relays 440R-EM4R2 attributes and parameters. Explore more Special Function Relays devices from Rockwell Automation
Relay Type:
Relay Function:
Coil Maximum DC Voltage:
Coil/Input Supply Type:
Coil Power:
Coil Maximum DC Current:
Coil Resistance:
Width:
Height:
Length/Diameter:
Dimensions:
Mounting Type:
Minimum Operating Temperature:
Maximum Operating Temperature:
Activation Time:
Release Time:
Termination Type:
Industry Standard Compliance:
Sealing Type:
Additional Features:
440R-EM4R2 Relays trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
Rockwell Automation mission is to improve the quality of life by making the world more productive and sustainable. We are committed to enabling the next generation of smart manufacturing. With the right strategy, talented people, and our substantial financial strength, we are dedicated to deliver value to our customers. When you invest in Rockwell Automation technology and solutions, you invest in the future of manufacturing. We are the largest company in the world that is dedicated to industrial automation and information. Across the globe, our flagship Allen‑Bradley® and FactoryTalk® product brands are recognized for excellence. Our keen focus on technology innovation, domain expertise, and integrity and corporate responsibility fuels our success.
BAV99
Lite-on Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
SS14
Zowie Technology
RECTIFIER DIODE; Surface Mount: YES; No. of Phases: 1; Maximum Operating Temperature: 125 Cel; No. of Elements: 1; Maximum Non Repetitive Peak Forward Current: 30 A;
Meritek Electronics
FDN5618P
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .5 W; Transistor Element Material: SILICON; Moisture Sensitivity Level (MSL): 1;
LM358N
Taejin Technology
OPERATIONAL AMPLIFIER; Temperature Grade: AUTOMOTIVE; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
SDR0604-101KL
Bourns
SDR0604-101KL by Bourns is a surface mount fixed inductor with a nominal inductance of 100 uH. It is a general purpose inductor suitable for power applications, with a max rated current of 0.52 A and a self-resonance frequency of 9 MHz.
LM555CN
National Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
1N4148WS
Rochester Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Samsung
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
LL4148
Bkc Semiconductors
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
SMBJ18CA
Hy Electronic
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BSS123,215
NXP Semiconductors
NXP Semiconductors' BSS123,215 is a N-CHANNEL FET for SWITCHING applications. Features include 100V DS Breakdown Voltage, 0.17A Drain Current, and 6 ohm On Resistance. With GULL WING terminals and ENHANCEMENT MODE operation, it's ideal for small outline packages in various electronic devices.
RK73H2ATTD10R0F
Koa Speer Electronics
RK73H2ATTD10R0F by Koa Speer Electronics is a 0805 SMT fixed resistor with 10 ohm resistance, 1% tolerance, and 0.25 W power dissipation. Ideal for surface mount applications in automotive electronics due to its AEC-Q200 reference standard and operating voltage of 150 V.
2N2222A
Gec Plessey Semiconductors
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Daco Semiconductor
MMBT2222ALT1G
Onsemi
MMBT2222ALT1G by Onsemi is a NPN BJT transistor with 3 terminals, max power dissipation of 0.3W, and hFE of 75. Ideal for switching applications, it operates b/w -55 to 150 °C with a max collector-emitter voltage of 40V. This surface-mount device has a transition frequency of 300MHz and turn-on time of 35ns.
Nexperia
2N7002
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Package Style (Meter): SMALL OUTLINE; Terminal Position: DUAL;
LM7805CT
FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %;
LM317T
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Package Shape: RECTANGULAR; Minimum Input-Output Voltage Differential: 3 V;
SF3-DC24V
Panasonic
Panasonic SF3-DC24V is a 3PST relay with 30ms operate time and 30000 cycles electrical life. With gold plating, it has a max AC contact current of 6A@250VAC. Ideal for safety relay applications due to its momentary action and dielectric strength of 2500 Vrms b/w coil & contacts.
2981156
Phoenix Contact
Special Relays;
2963705
Special Relays; Manufacturer Series: 2963705;
PSR-SCP-24DC/ESD/5X1/1X2/T20
T2500.0030
Littelfuse
OVERLOAD RELAY;
2885809
SFS6-L-DC24V
Panasonic SFS6-L-DC24V is a 6PST safety relay with 20ms operate/release time. It has a max AC contact current of 6A@250VAC and DC coil voltage of 24V, suitable for applications requiring momentary relay action in industrial settings.
4-1415055-1
Tyco Electronics Cii
SAFETY RELAY; Mounting Feature: THROUGH HOLE-STRAIGHT MOUNT; Relay Action: MOMENTARY; Relay Function: 4PST; Coil or Input Supply Type: DC; Reference Standard: EN; IEC; UL; VDE;
2TLA010029R0000
Abb
2TLA010029R0000 by Abb is a Safety Relay with DPST function. It has a compact body size of 120mm x 22.5mm x 84mm, suitable for applications requiring momentary relay action. This CE standard relay operates at a max DC coil voltage of 24V, making it ideal for various industrial safety systems.
2TLA010040R0200
SR102AM01
Omron
2903256
CA2KN31M7
Schneider Electric Sa
EMG45-C7S/250/SO79
2981282
2963734
SAFETY RELAY; Mounting Feature: DIN-RAIL MOUNT; Relay Action: MOMENTARY; Relay Function: 6PST; Coil or Input Supply Type: AC/DC; Reference Standard: CUL; DIN; EAC; EN; UL; VDE;
2981680
SAFETY RELAY; Mounting Feature: DIN-RAIL MOUNT; Relay Action: MOMENTARY; Relay Function: SPST; Coil or Input Supply Type: DC; Reference Standard: UL;
APR-S380
6-1415054-1
LRD08L
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
440R-D22R2
Rockwell Automation
440R-D22R2 by Rockwell Automation is a DPST safety relay with an operate time of 35ms and release time of 100ms. It has a max DC coil voltage of 24V, making it suitable for applications requiring quick response times in industrial automation systems. The relay's compact dimensions (119.4mm x 22.5mm x 113.6mm) and DIN-RAIL MOUNT feature make it easy to install in various control panels while meeting CE, CUL, EN, IEC, TUV, and UL standards for safety compliance.
440R-S12R2
SAFETY RELAY; Mounting Feature: DIN-RAIL MOUNT; Relay Action: MOMENTARY; Relay Function: DPST; Coil or Input Supply Type: DC; Reference Standard: CE; CUL; EN; IEC; TUV; UL;
440R-N23132S
440R-N23132S by Rockwell Automation is a 3PST safety relay with IP20/IP40 sealing. It operates at -5 to 55 °C, with a coil power of 2000mW and termination type SNAP-ON. Ideal for AC/DC contact or output supply applications, it has a max contact rating of 5A@250VAC and mounting feature DIN-RAIL MOUNT.
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