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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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
$6.670
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
$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
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.
1N4148
Rochester Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
SMBJ18CA
Changzhou Galaxy Century Microelectronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: J BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Vishay Telefunken
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
BSS138BKW,115
NXP Semiconductors
NXP Semiconductors' BSS138BKW,115 is a N-CHANNEL FET with 60V DS breakdown voltage and 0.32A ID. Ideal for SWITCHING applications, it features a built-in diode, 1.6 ohm RDS(on), and operates in ENHANCEMENT MODE. Suitable for surface mount with GULL WING terminals, it meets AEC-Q101 standards.
1N4148WT
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
MBR0520LT3G
Onsemi
MBR0520LT3G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.385V and output current of 0.5A. It operates b/w -65°C to 125°C, ideal for applications requiring high-speed switching and low power loss in compact electronic devices. The package style is small outline, making it suitable for surface mount designs in various electronics.
1N4148WS
Daco Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Formosa Microsemi
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .225 W; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR; Maximum Drain Current (Abs) (ID): .115 A;
Surge Components
1552200253
Molex
WIRE AND CABLE;
M24308/2-1F
Defense Logistics Agency
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Mounting Type: CABLE AND PANEL; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Empty Shell: NO;
FDC5614P
TAIZHOU ELECTRONICS CO LTD
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.92 W; Maximum Operating Temperature: 150 Cel; Package Body Material: PLASTIC/EPOXY;
Diodes Incorporated
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
M39029/58360
Souriau-sunbank Connection Technologies
Souriau-sunbank's M39029/58360 is a MIL-Spec backshell with CRIMP contact type and male gender. It conforms to MIL-DTL-38999 standards, mates with M39029/56348 contacts, and requires M81969/14-01 insertion tools. Ideal for military applications requiring reliable crimp terminals.
USB3320C-EZK-TR
Standard Microsystems
INTERFACE CIRCUIT; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 32; Package Code: HVQCCN; Package Shape: SQUARE;
M39029/56-351
TE Connectivity's M39029/56-351 is a CRIMP contact type backshell accessory with rated voltage of 115V. It operates b/w -65 to 175 °C, suitable for MIL-C-39029/56 connectors with wire gauge ranging from 28 to 22 AWG. Ideal for military applications requiring female contacts and copper alloy material.
USB2514BI-AEZG
BUS CONTROLLER, UNIVERSAL SERIAL BUS; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 36; Package Code: HVQCCN; Package Shape: SQUARE;
BSS138
Panjit International
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Drain-Source On Resistance: 3 ohm; Minimum DS Breakdown Voltage: 50 V; Terminal Form: GULL WING;
2N2222A
Loras Industries
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
FDV303N
FDV303N by Onsemi is a N-CHANNEL FET with 25V DS Breakdown Voltage, 0.68A Drain Current, and 0.45 ohm On Resistance. Ideal for SWITCHING applications, it operates in ENHANCEMENT MODE at temperatures ranging from -55 to 150°C. Package style is SMALL OUTLINE with GULL WING terminals for surface mount assembly.
402EN1-6
Honeywell Sensing And Control
The Honeywell 402EN1-6 is a corrosion-proof SPDT snap action/limit switch with a plunger actuator. It has a max DC contact voltage of 28V and can handle up to 7A@28VDC. Ideal for panel mounting applications requiring momentary switch action with a max operating force of 53.38N.
SS-5GL2
Omron
Omron SS-5GL2 is a SPDT snap acting/limit switch with 200000 cycles electrical life. It has a max AC contact current of 5A@125VAC and operates b/w -25 to 85 °C. With HINGE ROLLER LEVER actuator, it is ideal for panel mounting applications requiring momentary switch action.
LSM6D-1D
SNAP ACTING/LIMIT SWITCH; Manufacturer Series: HDLS; DC Maximum Rating R Load (Contact): A@VDC; AC Maximum Rating R Load (Contact): A@VAC;
JJHH0UG200NONMRTR
TE Connectivity's JJHH0UG200NONMRTR is a black SPST snap action/limit switch with 0.01A AC/DC contact current. It features stainless steel end contacts, silver plating, and polyethylene actuator material. Ideal for panel mounting applications requiring OFF-(ON) contact function.
D4N-4187
The Omron D4N-4187 is a Snap Action & Limit Switch with IP67 sealing, DPST switch function, and 300000 cycle electrical life. It has a max AC contact current of 10A@240VAC and DC contact current of 2.5A@250VDC. Ideal for panel mounting applications requiring momentary switch action in environments with temperatures ranging from -30°C to 70°C.
111SM858-H403
111SM858-H403 by Honeywell Sensing And Control is a SPDT snap acting/limit switch with 10.16" body width and corrosion proof sealing. It has a max AC contact current of 5A@250VAC, suitable for applications requiring momentary switch action and lever actuator type.
BZE6-2RN34
BZE6-2RN34 by Honeywell Sensing And Control is a snap action/limit switch with SPDT function, IP54 sealing, and steel plunger actuator. It has a max AC contact current of 15A@480VAC and is suitable for panel mounting applications in environments with temperatures ranging from -40 to 71°C.
102HS1
102HS1 by Honeywell Sensing And Control is a hermetically sealed snap action/limit switch with a body width of 17.45 inch and a max operating temperature of 149 °C. It has a SPDT switch function and is commonly used for panel mounting applications.
JE-5
JE-5 by Honeywell Sensing And Control is a SNAP ACTING/LIMIT SWITCH with 3.81mm ROLLER TYPE actuator travel and 3.34N max operating force. It features MOMENTARY switch action, WIRE termination type, and PANEL mounting feature. Ideal for applications requiring precise control in industrial machinery and equipment.
SS-01GL2
SS-01GL2 by Omron is a snap action/limit switch with a body width of 6.4 inch and a sealing of IP40. It has an electrical life of 200,000 cycles and insulation resistance of 100,000,000 ohm. The switch function is SPDT and it has a maximum operating temperature of 85 °C.
1SE1
Micro Switch
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SPHERICAL STEEL PLUNGER; Maximum Pre Travel: 1.27 mm; Termination Type: WIRE;
D413-R1RA-G2
Zf Friedrichshafen Ag
SNAP ACTING/LIMIT SWITCH; Switch Function: SPDT; Minimum Operating Temperature: -40 Cel; Maximum DC Contact Current: .5 A; AC Maximum Rating R Load (Contact): 0.1A@250VAC; Terminal Material: BRASS;
LSYPB1AC
LSYPB1AC by Honeywell is a SPDT snap action/limit switch with EPOXY terminal sealing (IP65, IP66, IP67). It has a max operating temp of 121°C and can handle up to 10A@600VAC. Ideal for panel mounting applications requiring momentary switch action in environments ranging from -40°C to 121°C.
WW1A24A-D8
WW1A24A-D8 by Honeywell is a 17.53" wide snap action/limit switch with SPST function, 40mm height, and 3A@125VAC AC contact current. Featuring a plunger lever actuator type, it has 5mm travel and quick connect termination. Ideal for panel mounting applications requiring momentary switch action at up to 125V AC voltage.
DB2CC1AA
SNAP ACTING/LIMIT SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Type (Actuator): SPHERICAL HEAD TYPE; Additional Features: ELECTRICAL LIFE AND ELECTRICAL RATING FOR EN ALSO AVAILABLE; Body Length/Diameter: 20 mm;
MS27994-1
MS27994-1 by Defense Logistics Agency is a SPDT snap action/limit switch with 25000 cycles electrical life. It has a body width of 8.28in and sealing with epoxy terminal seal for usage in panel mount applications at temperatures ranging from -55 to 85°C.
BZ-RD-A2
BZ-RD-A2 by Honeywell is a 17.45" wide snap action/limit switch with SPDT function, 15A@480VAC rating, and 2.64N operating force. Ideal for panel mounting applications requiring momentary switch action and screw termination.
DB1CA1RB
The Cherry
The Cherry's DB1CA1RB is a SNAP ACTING/LIMIT SWITCH with SPDT switch function. It has a 6.45" body width, 9.65mm body height, and IP50 sealing for protection. Ideal for applications requiring a max AC contact current of 5A@250VAC and operating temperatures ranging from -40 to 120 °C.
B3J-4000
Omron B3J-4000 is a SPST snap action/limit switch with 3000000 cycle electrical life. Featuring hinged type actuator, it has 1.76N max operating force and 0.05A@24VDC DC max rating R load. Ideal for panel mount applications in temperature range of -25 to 70°C.
ZCMD21L5
Schneider Electric Sa
SNAP ACTING/LIMIT SWITCH;
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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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