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
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;
Median Price
$6.670
Lifecycle Status
Suppliers In-Stock
46
In-Stock Inventory
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
$5.140
$4.630
Arrow
$8.000
$7.774
TTI
$9.340
$8.780
$8.600
Powell Electronics
$34.020
Sager
$36.690
$33.130
$30.190
Farnell
$59.410
Element14
$62.210
$61.030
Master Electronics
$7.390
$7.300
Airline Hydraulics
Verical
$0.902
$0.853
Chip1Stop
$0.672
$0.619
TE Connectivity
$1.060
$0.530
$0.430
Digiode
$1.273
Maritex
$3.895
$2.546
$2.034
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
Snap Action & Limit Switches 18-40421 attributes and parameters. Explore more Snap Action & Limit Switches devices from Itw Switches
Actuator Travel (mm):
Body Width:
Body Height:
Body Length/Diameter:
AC Maximum Rating R Load (Contact):
Maximum AC Contact Current:
Maximum DC Contact Current:
DC Maximum Rating R Load (Contact):
Maximum AC Contact Voltage:
Maximum DC Contact Voltage:
JESD-609 Code:
Manufacturer Series:
Mounting Feature:
Maximum Operating Force:
Maximum Pre Travel:
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.
LM107H/883C
General Electric Solid State
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Wideband: NO;
1N4148
Hy Electronic
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
LM2931Z-5.0G
Onsemi
LM2931Z-5.0G by Onsemi is a Fixed Positive Single Output LDO Regulator with 5V output voltage, 0.6V dropout voltage, and 0.1A output current. It is ideal for applications requiring stable power supply in temperature-sensitive environments due to its operating range of -40°C to 125°C.
ULN2003ADR
Texas Instruments
ULN2003ADR by Texas Instruments is a NPN BJT with 7 elements, max IC of 0.5A, and VCEsat of 1.6V. Ideal for switching applications in small outline packages with Gull Wing terminals.
2N7002
Bytesonic Electronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .225 W; Terminal Position: DUAL; Minimum Operating Temperature: -55 Cel;
CRCW080510K0FKEA
Vishay Intertechnology
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.
LL4148
Diotec Semiconductor Ag
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
ULN2803ADW
ULN2803ADW 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 and has a max supply voltage of 3 V. Ideal for applications requiring buffer or inverter-based peripheral drivers with sink current flow direction.
RC0603FR-0710KL
Yageo
Yageo's RC0603FR-0710KL is a fixed resistor with 10000 ohm resistance, 1% tolerance, and 0.1 W power dissipation. It operates b/w -55 to 155 °C and is ideal for surface mount applications in electronics requiring precise resistance values.
BSS138
Changzhou Galaxy Century Microelectronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Time At Peak Reflow Temperature (s): NOT SPECIFIED; Minimum DS Breakdown Voltage: 50 V; Maximum Operating Temperature: 150 Cel;
1N4148WT
Formosa Microsemi
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM555CM
Renesas Electronics
Analog Waveform Generation Functions; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
SS14
RECTIFIER DIODE; Surface Mount: YES; No. of Phases: 1; Maximum Non Repetitive Peak Forward Current: 40 A; Technology: SCHOTTKY; No. of Elements: 1;
1554216004
Molex
WIRE AND CABLE;
Semtech Electronics
FDV303N
Fairchild Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Transistor Application: SWITCHING; JESD-609 Code: e3;
ABS10-32.768KHZ-T
Abracon
Abracon's ABS10-32.768KHZ-T crystal oscillator offers 20 ppm frequency tolerance, 122% stability, and 70000 ohm series resistance. Ideal for applications requiring precise timing at 0.032768 MHz, such as IoT devices and wearables due to its compact size and low power consumption.
1N4148WS
First Components International
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
ABS06-32.768KHZ-T
Abracon's ABS06-32.768KHZ-T crystal oscillator offers 20 ppm frequency tolerance, 90000 ohm series resistance, and -40 to 85 °C operating temperature range. Ideal for applications requiring precise timing in compact designs like IoT devices and wearables.
2N2222A
Motorola
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; Maximum Collector-Base Capacitance: 8 pF;
23SX39-T
Honeywell Sensing And Control
23SX39-T by Honeywell Sensing And Control is a SPDT snap action/limit switch with a plastic plunger. It has a body width of 5.08" and max operating temperature of 85°C, suitable for panel mounting applications requiring momentary switch action up to 1A@125VAC or 1A@30VDC.
11SX21-T
11SX21-T by Honeywell Sensing And Control is a Snap Action & Limit Switch with SPDT switch function. It features PHENOLIC housing, SILVER terminal material, and PLASTIC PLUNGER actuator type. Ideal for applications requiring momentary switch action, with max AC contact current of 5A@115VAC and operating temperature range from 121 to 204 °C.
4TL132-12
4TL132-12 by Honeywell Sensing And Control is a 4PDT snap action/limit switch with dimensions of 33.53" x 34.29 mm x 41.66 mm. It has a max AC contact current of 15A@277VAC and DC contact voltage of 30V, suitable for panel mounting applications requiring momentary switch action.
FF6-21-DC-03
FF6-21-DC-03 by Honeywell is a 3PST snap action/limit switch with IP67 sealing. It operates b/w -10°C to 55°C, handling up to 1A@30VDC. Ideal for panel mounting applications requiring momentary switch action in industrial settings.
ESE13V01A
Panasonic
The Panasonic ESE13V01A is a SPST snap action/limit switch with 50000 cycles electrical life. Featuring a lever actuator type, it has a max operating force of 0.3N and operates b/w -10°C to 60°C. Ideal for applications requiring momentary switch action, it has a DC contact rating of 0.01A at 5VDC and termination via soldering in surface mount-right angle configuration.
1XE301
1XE301 by Honeywell Sensing And Control is a SPDT snap action/limit switch with a plunger actuator. Featuring corrosion-proof sealing, it has a max DC contact voltage of 28V and can handle up to 1A current. Ideal for panel mounting applications requiring momentary switch action in industrial settings.
LCGGX1A10EC
C & K Components
LCGGX1A10EC by C & K Components is a SPDT snap action/limit switch with 6000 cycles electrical life. Featuring copper alloy terminals, it has a max operating temperature of 85°C and can handle 1A@125VAC AC max rating R load. Ideal for panel mounting applications requiring high force actuation with lever roller type actuator.
ZCMD21L08R12
Schneider Electric Sa
SNAP ACTING/LIMIT SWITCH;
FF6-21-AC-QD05
FF6-21-AC-QD05 by Honeywell is a 3PST snap action/limit switch with IP67 sealing, suitable for panel mount-threaded installation. It has a max AC contact current of 2A@230VAC and operates b/w -10°C to 55°C. Ideal for applications requiring momentary switch action in industrial settings.
BZ-RMX6-B7
BZ-RMX6-B7 by Honeywell Sensing And Control is a SPDT snap action/limit switch with 15A AC contact current and 125V DC contact voltage. Featuring a plastic plunger actuator, it has a body width of 17.45 inch and is ideal for panel mounting applications requiring momentary switch action.
11TL604
11TL604 by C & K Components is a snap action/limit switch with SPDT switch function and stainless steel plunger actuator. It has an electrical life of 150,000 cycles, insulation resistance of 1G ohm, and can handle AC contact current up to 15A@250VAC. Ideal for panel mounting applications requiring reliable switching in temperatures ranging from -55°C to 150°C.
XCG8Z1
Johnson Electric Group
Snap Acting/Limit Switches;
11SM401
11SM401 by Honeywell Sensing And Control is a SPDT snap action/limit switch with a plastic plunger. It has a max AC contact current of 5A@250VAC and DC contact current of 5A@30VDC. Ideal for panel mounting applications, it offers an actuator travel of 0.63mm and max operating force of 0.97N.
ZCMD39
D4C-1524
Omron
Omron D4C-1524 is a SPDT snap action/limit switch with 200000 cycles electrical life. Featuring IP67 sealing, it has a max operating force of 5.69N and operates at temperatures ranging from -10°C to 70°C. Ideal for panel mounting applications requiring momentary switch action with a roller lever actuator.
311SM1-T
311SM1-T by Honeywell Sensing And Control is a Snap Action & Limit Switch with SPDT switch function. It features PHENOLIC housing material, SILVER end contact plating, and operates b/w -55 to 121 °C. Ideal for applications requiring a max AC contact current of 5A@250VAC, such as panel mounting setups.
0E6110K0
The Cherry
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Type (Actuator): ROLLER LEVER; Body Width: 6.35 inch; Electrical Life: 6000 Cycle(s); DC Maximum Rating R Load (Contact): 5A@30VDC;
19HM1
19HM1 by Honeywell Sensing And Control is a hermetically sealed SPDT snap acting/limit switch with a body width of 6.35in and max operating temperature of 260°C. It has a max DC contact voltage of 28V and is ideal for panel mount applications requiring momentary switch action.
XCKJ10541
BZ-2RQ124-D6
BZ-2RQ124-D6 by Honeywell is a SPDT snap action/limit switch with 17.45" body width, 23.62mm height, and 5.94mm actuator travel. It operates at a max temperature of 121°C, handles up to 15A@480VAC AC load, and 0.5A@125VDC DC load. Ideal for panel mounting applications requiring momentary switch action with quick connect termination.
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18-40421
Itw Mcmurdo Connectors
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.
Itw Switches
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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