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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Featured manufacturers
18-40421 by Itw Mcmurdo Connectors is a SPDT snap action/limit switch with IP40 sealing. Featuring electrical life of 100000 cycles, it has a max AC contact current of 8A@250VAC and operates in temperatures ranging from -55°C to 180°C. Ideal for applications requiring momentary switch action and through hole-straight mounting.
Median Price
$7.390
Lifecycle Status
Suppliers In-Stock
46
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1k+
Mouser Electronics
1+ parts
$1.120
100+ parts
$0.821
1k+ parts
$0.739
10k+ parts
$0.654
DigiKey
$1.190
$0.859
$0.730
$0.684
RS (Exports)
$3.568
$6.768
-
RS Americas
$6.530
Bürklin Elektronik
$6.670
$5.140
$4.630
Verical
$8.000
$7.774
Newark
$14.500
$12.290
$10.260
Powell Electronics
$34.020
Sager
$36.690
$33.130
$30.190
Farnell
$59.410
Element14
$62.210
$61.030
Master Electronics
$7.300
Airline Hydraulics
Chip1Stop
$0.672
$0.619
TE Connectivity
$1.060
$0.530
$0.430
Arrow
$8.007
Digiode
$1.273
Maritex
$3.947
$2.579
$2.060
TodayComponents
$5.950
$5.330
TME
$8.930
$4.920
Quotebeam
$10.280
Nova Conductors
$35.930
VNN
Q Components
Shortec Electronics
Electro Sonic
$8.330
$7.770
IBS Electronics
$10.920
$10.516
Vyrian
LIBRA Elektronik GmbH
Whistler Technology
Dynamic Solutions
Semi Source
Bisco
EMSNET
Holdelec - ElecDif-Pro
Resion
Proax Technologies Ltd
Bristol Electronics
LWI Electronics Inc
ACDS - Activité Composants Distribution Service
GSS - Global Semi Support
Technoshack Inc.
Prism Electronics
American Connector Supply Corp
Connector Distribution Corp
Right Parts Inc.
Semicontronic
$0.570
$0.556
$0.553
Ampacity Inc.
Corphita
$1.206
Aranea Global
$35.211
$33.803
Continental Prestige Electronics
Neutron USA
$93.240
Perfect Parts
EMSNET (Excess)
Argo Parts USA
S.R.D Solutions
Glotronic Ltd.
Assy Fe
Corohmni
Netroflash
$34.134
$33.415
Abacus Technologies
Authorized Procurement Solutions
Long electrical life ensures durability and reliability for repeated use over an extended period of time.
Compact body width makes it suitable for installation in tight spaces or crowded panels.
IP40 sealing provides protection against dust and solid objects, making it suitable for various industrial environments.
SPDT switch function allows for versatile control options, increasing flexibility in applications.
Low body height allows for easy integration and installation in different equipment or machinery.
High maximum operating temperature ensures reliable performance in hot environments without compromising functionality.
High AC contact current rating enables handling of larger electrical loads, making it suitable for various applications.
Low minimum operating temperature allows for use in cold environments without affecting performance.
Gold terminal finish ensures excellent conductivity and corrosion resistance for long-lasting performance.
Precise actuator travel provides accurate and consistent switching, enhancing overall control and reliability.
Snap acting/limit switch type combines quick response with precise positioning, ideal for applications requiring specific control parameters.
High AC contact voltage and current rating allows for compatibility with a wide range of electrical systems and equipment.
Compact body length/diameter makes it suitable for installation in confined spaces without compromising functionality.
Moderate operating force ensures ease of actuation while maintaining tactile feedback for reliable operation.
Momentary switch action enables temporary electrical control, adding versatility to the switching capabilities of the product.
Solder termination allows for secure and reliable electrical connections, ensuring consistent performance in demanding applications.
High maximum AC contact voltage rating makes it suitable for use in industrial and commercial applications with varying voltage requirements.
Low pre-travel distance ensures quick actuation and response times, enhancing overall efficiency and performance.
Through hole-straight mounting feature allows for easy and secure installation in a variety of equipment or panels.
Snap Action & Limit Switches 18-40421 attributes and parameters. Explore more Snap Action & Limit Switches devices from Itw Mcmurdo Connectors
Actuator Travel (mm):
Body Width:
Body Height:
Body Length/Diameter:
AC Maximum Rating R Load (Contact):
Maximum AC Contact Current:
Maximum AC Contact Voltage:
Electrical Life:
JESD-609 Code:
Manufacturer Series:
Mounting Feature:
Maximum Operating Force:
Maximum Operating Temperature:
Minimum Operating Temperature:
Maximum Pre Travel:
Sealing:
Switch Action:
Switch Function:
Switch Type:
Terminal Finish:
Termination Type:
18-40421 Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.70.00
SB
Since our beginning the world renowned product brands of ITWSwitches™, ITWMcMurdo™ Connectors and ITW ERG Components have become a world leading partner and is the “”Original Switch Partner”. When your design requires a versatile, robust and reliable switch, ITWSwitches™ is the company that you can turn to. With over 60 years of design and engineering expertise, we are able to recommend the best product for your application. We design and build both standard and custom switches that are trusted by top companies to meet the toughest applications in their industries. From industrial machinery to communications, transportation and agriculture to aerospace and military, ITWSwitches™ is known for quality and consistency. We’ve built our reputation for reliability in applications that demand maximum performance. ITWMcMurdo™ Connectors first started manufacturing connectors in 1956. Since that time we have developed a range of connectors which have provided our customers with high quality and reliable interface solutions. ITW ERG Components has been manufacturing electrical and electronic products since 1942. In 1971, ITW received the first patent for a dual-in-line switch.
SMBJ18CA
Sensitron Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BAV99
Transys Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
LM358N
Samsung
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
Onsemi
2N2222A
NXP Semiconductors
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; Maximum Operating Temperature: 150 Cel;
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.
LM317T
National Semiconductor
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;
AMS1117-3.3
Advanced Monolithic Systems
AMS1117-3.3 by Advanced Monolithic Systems is a fixed positive single output LDO regulator with 1A max output current, 3% voltage tolerance, and 1.3V dropout voltage. Ideal for applications requiring stable 3.3V supply in compact designs due to its small outline package and excellent load regulation of 0.025%.
SS14
Leshan Radio
RECTIFIER DIODE; Surface Mount: YES; Config: SINGLE; No. of Phases: 1; No. of Elements: 1; Maximum Forward Voltage (VF): .5 V;
Surge Components
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Collector Current (IC): .6 A; No. of Terminals: 3;
OHN3140U
Tt Electronics Plc
OHN3140U by Tt Electronics Plc is a magnetic field sensor with a max supply voltage of 24V and hysteresis of 2mT. It features an output range of 25mA and operates b/w -20 to 85°C. Ideal for applications requiring precise detection and measurement of magnetic fields in various industries.
Forward International Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Nominal Breakdown Voltage: 21.05 V; Maximum Clamping Voltage: 29.2 V; Maximum Repetitive Peak Reverse Voltage: 18 V; Polarity: BIDIRECTIONAL;
MBRS360T3G
MBRS360T3G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.63V and a max output current of 3A. It is designed for applications requiring high-speed switching and low power loss, making it suitable for use in various electronic devices.
Semtech Electronics
OPA2227UA
Texas Instruments
OPA2227UA by Texas Instruments is a dual operational amplifier with low-offset voltage of 200 uV and bias current of 0.01 uA. It operates at temperatures ranging from -40 to 85 °C, making it suitable for industrial applications requiring precise signal amplification. With a unity gain bandwidth of 8000 kHz, this op amp is ideal for high-frequency circuit designs.
LAN8720AI-CP-TR
Standard Microsystems
ETHERNET TRANSCEIVER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 24; Package Code: HVQCCN; Package Shape: SQUARE;
1N4148
Renesas Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Concord Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V; Polarity: BIDIRECTIONAL; Maximum Clamping Voltage: 29.2 V;
DRV5053VAQLPG
Texas Instruments DRV5053VAQLPG is a magnetic field sensor with 2.5-38V supply voltage range, -40 to 125°C operating temperature, and 0-2V output. Ideal for applications requiring Hall effect sensors like automotive, industrial automation, and robotics due to its compact size (1.52" x 4mm) and high output current capability of 2.3A.
BZ-RW80X
Honeywell Sensing And Control
BZ-RW80X by Honeywell Sensing And Control is a SPDT snap action/limit switch with 15A@480VAC AC rating and 0.5A@125VDC DC rating. Featuring a 17.45" body width, 26.42mm height, and 5.56mm actuator travel, it's ideal for panel mounting applications requiring precise latched switch action.
D413-R1RA-G2
The Cherry
The Cherry's D413-R1RA-G2 is a SPDT snap action/limit switch with 50000 cycles electrical life. Featuring brass terminals, it has a max AC contact current of 0.1A and DC contact current of 0.5A at 30VDC. Ideal for applications requiring precise actuation within -40°C to +250VAC environments.
ADPFF3J04AY
Itt Cannon
ITT Cannon's ADPFF3J04AY is a DPST snap action/limit switch with 75000 cycles electrical life. With a body width of 16.3mm and height of 28.4mm, it operates b/w -55°C to 85°C. Ideal for applications requiring momentary switch action and quick connect termination, it has a max AC contact current of 25A@250VAC.
DB1CA1RC
The Cherry's DB1CA1RC is a 6.5" snap action/limit switch with SPDT function, ideal for panel mounting applications. Featuring brass terminals, it offers an electrical life of 6000 cycles and can handle up to 5A@250VAC AC loads. With a compact body size of 20mm x 9.65mm x 0.087", it operates b/w -40°C to 120°C temperatures efficiently.
YA-2RQ1243-D6
YA-2RQ1243-D6 by Honeywell Sensing And Control is a SPST snap acting/limit switch with 20A@480VAC AC max rating. Featuring a hardened steel plunger, it has a body width of 17.45 inch and operates at a max temperature of 121°C. Ideal for panel mount-threaded applications requiring momentary switch action.
SAJ13XXPP0N88SDTPTQ
TE Connectivity's SAJ13XXPP0N88SDTPTQ is a SPDT snap acting/limit switch with 3A max AC/DC contact current and silver end contact material. Featuring a pin plunger actuator, it has 0.882N max operating force and 250V max AC contact voltage. Ideal for panel mount applications requiring reliable switching in various electrical circuits.
D2F-L-D
Omron
Omron's D2F-L-D snap action switch has a 30000 cycle electrical life, SPDT switch function, and IP40 sealing. With a body width of 5.8 inch and max operating temperature of 65 °C, it is ideal for panel mounting applications requiring momentary switch action.
BZ-2RS7224-A2
Honeywell BZ-2RS7224-A2 is a 17.45" snap action switch with SPDT function, 1A@125VAC rating, and 3.61N operating force. Featuring a hardened steel plunger, it's ideal for panel mounting applications requiring momentary switch action in industrial settings.
Zf Friedrichshafen Ag
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): AUXILIARY TYPE; Maximum AC Contact Voltage: 250 V; Terminal Material: BRASS;
4HS4-318
4HS4-318 by Honeywell is a SPDT snap action/limit switch with EPOXY TERMINAL SEALING. It has a body width of 17.02 inch and max operating temperature of 121°C. Ideal for panel mounting applications, it offers a max DC contact current of 25A@28VDC and AC contact voltage of [email protected].
D2HW-BL221DL
The Omron D2HW-BL221DL is a snap action and limit switch with a long hinge lever actuator. It has an electrical life of 100,000 cycles and can withstand temperatures ranging from -40°C to 85°C. This switch is commonly used in applications requiring momentary switch action and through-hole right angle mounting.
BZ-RW85X2
BZ-RW85X2 by Honeywell Sensing And Control is a SPDT snap action/limit switch with 15A@480VAC AC max rating. Featuring a plastic plunger actuator, it has a 4.37mm travel and 0.83N max operating force. Ideal for panel mounting applications requiring latched switch action in industrial settings.
SS-5GL111-F
SNAP ACTING/LIMIT SWITCH;
SS-5GLT
Omron SS-5GLT is a SPDT snap action/limit switch with 200000 cycles electrical life. Featuring HINGE LEVER actuator, it has IP40 sealing and operates b/w -25 to 85°C. Ideal for panel mounting applications, it offers 5A@125VAC AC max rating and 0.49N max operating force.
D459-R1ML-G2
SNAP ACTING/LIMIT SWITCH; Switch Function: SPDT; Body Width: 10.3124 inch; Body Height: 15.9004 mm; Maximum AC Contact Current: 16 A; Electrical Life: 50000 Cycle(s);
D4A-4918N
Omron D4A-4918N is a DPDT snap action/limit switch with 750,000 cycles electrical life. Featuring IP67 sealing, it operates b/w -40°C to 100°C. With a roller lever actuator, it has 5A@125VAC and 5A@14VDC max ratings for various applications like panel mounting.
ZCKJ1H29
Schneider Electric Sa
83160301
Crouzet
D4F-320-5D
SNAP ACTING/LIMIT SWITCH; Manufacturer Series: D4F;
DB1CC1RB
The Cherry's DB1CC1RB snap action/limit switch has SPDT switch function, 6000 cycle electrical life, and 5A@250VAC AC max rating. With polyester housing and brass terminals, it is ideal for applications requiring a compact design with high durability and precise switching capabilities.
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18-40421
Itw Switches
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Maximum DC Contact Voltage: 28 V; Body Height: 8.89 mm; Maximum Operating Force: 2.22 N;
Itw Mcmurdo Connectors
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
Quantity
12,000 In-Stock
Total price ≈ $80,197.29
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