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
Omron A-20GQ21-B is a SPDT snap action/limit switch with 500000 cycles electrical life. It has a max AC contact current of 20A@250VAC and operates b/w -25 to 80 °C. Ideal for panel mounting, it features a roller plunger actuator with 4.88mm travel suitable for various industrial applications.
Median Price
$37.840
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DigiKey
1+ parts
100+ parts
$25.934
1k+ parts
$24.504
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Mouser Electronics
$28.240
Newark
$44.150
$31.460
$28.800
Native Components
$2.115
Northwest PG Solutions
$2.327
Component Stockers USA
$36.950
Neutron USA
$118.600
Perfect Parts
Long electrical life means the switch will last for a long time, providing reliable performance.
Compact size makes it easy to mount and integrate into different systems or equipment.
Single Pole Double Throw functionality allows for versatile usage in various applications.
Low profile design for easy installation in tight spaces.
Can operate effectively in relatively high-temperature environments.
Can handle high current loads, making it suitable for industrial applications.
Can operate in cold environments without performance issues.
Provides precise actuation and control over the switch.
Roller plunger design ensures smooth and reliable actuation in various conditions.
Can handle moderate DC voltages for different applications.
Combination of snap acting and limit switch functionality provides versatility in usage.
High current and voltage rating for AC loads, suitable for heavy-duty applications.
Compact design for easy integration and mounting.
Low operating force required for actuation, making it user-friendly.
Moderate DC load rating for different DC applications.
Can handle low to moderate DC currents, suitable for various DC applications.
Momentary switch action for quick and temporary control operations.
Screw termination for secure and reliable electrical connections.
High voltage rating for handling AC applications with ease.
Low pre-travel distance allows for quick and precise actuation.
Panel mount feature for easy installation on panels, control boards, or equipment.
Snap Action & Limit Switches A-20GQ21-B attributes and parameters. Explore more Snap Action & Limit Switches devices from Omron
Actuator Travel (mm):
Type (Actuator):
Body Width:
Body Height:
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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:
Electrical Life:
Mounting Feature:
Maximum Operating Force:
Maximum Operating Temperature:
Minimum Operating Temperature:
Maximum Pre Travel:
Switch Action:
Switch Function:
Switch Type:
Termination Type:
A-20GQ21-B Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.70.00
SB
As a global leader in the field of automation, OMRON’s business fields cover a broad spectrum, ranging from industrial automation and electronic components to social systems including automated ticket gates and solar power conditioners, healthcare. At present, OMRON provides products and services in around 120 countries and regions.
1N4148
Hy Electronic
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
LM317T
Micro Commercial Components
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Moisture Sensitivity Level (MSL): 1; Maximum Output Current-1: 1.5 A; Operating Temperature (TJ-Min): 0 Cel;
LM317BD2TG
Onsemi
LM317BD2TG by Onsemi is an adjustable positive single output standard regulator with a max output current of 1.5A and a max load regulation of 5.8%. Operating temperature ranges from -40 to 125°C, making it suitable for various applications requiring precise voltage regulation in compact designs.
General Semiconductor
Diotec Semiconductor Ag
M24308/2-1F
Cinch Connectivity Solutions
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Dielectric Withstanding Voltage (V): 1750VAC; No. of Connectors: ONE; Body Depth: .375 inch;
M39029/56-351
Amphenol
CONNECTOR ACCESSORY; Minimum Operating Temperature: -65 Cel; Additional Features: STANDARD: MIL-DTL-38999; Contact Gender: FEMALE; MIL-Connector Accessory Name: CONTACT; Associated Military - Specifications: MIL-DTL-38999;
CRCW06030000Z0EAHP
Vishay Intertechnology
Vishay Intertechnology's CRCW06030000Z0EAHP is a 0 ohm jumper resistor with METAL GLAZE/THICK FILM tech. Operating temp range -55 to 155 °C, it's SMT package style makes it ideal for automotive applications meeting AEC-Q200 standard.
STM32H750VBT6
STMicroelectronics
STM32H750VBT6 by STMicroelectronics is a 32-bit microcontroller with Cortex-M7 CPU, offering 20 timers and 16 DMA channels. It features 2 DAC and 16 ADC channels, suitable for industrial applications requiring high-speed processing up to 48 MHz. With extensive connectivity options like FDCAN, Ethernet, and USB, it provides versatile solutions in a compact package.
Shenzhen Yixinsemi Electronics
M39029/58-360
Itt Cannon
CONNECTOR ACCESSORY; Alternate Contacts: 030-2042-000; DIN Conformity: NO; Contact Gender: MALE; Terminal Type: WIRE; MIL-Connector Accessory Name: CONTACT;
LL4148
Semtech Electronics
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
2N2222A
M/a-com Technology Solutions
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Terminal Position: BOTTOM; Package Style (Meter): CYLINDRICAL;
1N4148WT
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
CSNF651
Honeywell Sensing And Control
CSNF651 by Honeywell Sensing And Control is an industrial-grade analog circuit with 3 terminals. It operates b/w -40 to 85°C, supporting supply voltages from -15V to 15V. Ideal for applications requiring a special shape rectangular package style and through-hole terminal form.
LM107H
Intersil
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Nominal Common Mode Reject Ratio: 96 dB;
BAV99
Microsemi
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Maximum Output Current-1: 1.5 A; No. of Outputs: 1; Qualification Status: Not Qualified;
FT232RL-TUBE
FTDI
FTDI's FT232RL-TUBE is a bus controller with 28 terminals, operating at 3.3-5.25V. It supports USB, VBUS, and UART interfaces with a data transfer rate of 60MBps. Ideal for industrial applications requiring RS232/RS422/RS485 compatibility in compact designs due to its small outline package style.
Molex
CONNECTOR ACCESSORY; Alternate Contact Sources: MILITARY; Removal Tool Sources: MILITARY; Material: COPPER ALLOY; National Stock Number (NSN): 5999004733551; Mating Contacts: M39029/56-348, M39029/57-354;
83106411
Crouzet
SNAP ACTING/LIMIT SWITCH;
D2F-01FL-A
Omron
Omron's D2F-01FL-A snap action switch offers 30000 cycles electrical life, SPDT switch function, and IP40 sealing. With a body width of 6.5in and actuator travel of 0.55mm, it is ideal for applications requiring momentary switch action in environments with temperatures ranging from -25 to 65°C.
FF5-21-DC-10
FF5-21-DC-10 by Honeywell is a Snap Action & Limit Switch with 1000000 cycles electrical life, IP67 sealing, and DPST switch function. It operates b/w -10°C to 55°C, with a max DC contact voltage of 24V and current rating of 0.3A. Ideal for panel mounting applications requiring momentary switch action.
WLCA12-N
83181001
D2D-1000
Omron's D2D-1000 is a SPDT snap acting/limit switch with 4A@380VAC AC rating, 100000 cycle electrical life, and IP40 sealing. Ideal for panel mounting applications requiring a reliable switch with N.O.-N.C. contact function and quick connect termination.
4AC55
4AC55 by Honeywell is a SPDT snap action/limit switch with PLUNGER actuator. It has a max AC contact current of 10A@125VAC and DC contact current of 10A@28VDC. Ideal for panel mounting applications, it offers an actuator travel of 11.1mm and termination via SCREW type connectors.
SPPW810201
Alps Electric
SNAP ACTING/LIMIT SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Termination Type: SOLDER; Maximum Operating Force: .3 N; Body Width: 4 inch;
111SM115-H2
111SM115-H2 by Honeywell is a SPDT snap action/limit switch with a body width of 6.35in and max operating temperature of 121°C. It has a max AC contact current of 5A, making it suitable for applications requiring momentary switch action in various industries.
11SM144
11SM144 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 0.83N.
9007AO2
Schneider Electric Sa
MS24547-1
Otto Engineering
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): BUTTON TYPE; Body Height: 8.89 mm; Maximum DC Contact Voltage: 28 V;
MS24331-1
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT-THREADED; Switch Function: DPDT; Type (Actuator): PIN PLUNGER; Body Height: 24.89 mm; Switch Action: MOMENTARY;
SS-5
Omron SS-5 snap action switch has 200000 cycles electrical life, SPDT switch function, and IP40 sealing. Ideal for applications requiring momentary switch action with 5A@125VAC AC max rating and -25 to 85°C operating temperature range.
D3V-163-1C5-K
Omron's D3V-163-1C5-K snap action switch has an electrical life of 100,000 cycles and a max operating temperature of 105°C. With SPDT switch function and IP00 sealing, it is ideal for applications requiring a long hinge lever actuator with quick connect termination.
D413-R1AA-G2
The Cherry
The Cherry's D413-R1AA-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 +25°C temperature range.
GLCB03B
GLCB03B by Honeywell Sensing And Control is a SPDT snap action/limit switch with IP67 sealing. It has a max operating temperature of 85°C and can handle up to 10A@300VAC AC current. With a top plunger actuator type, it is suitable for applications requiring momentary switch action in harsh environments.
1XE1-T
1XE1-T by Honeywell Sensing And Control is a SPDT snap acting/limit switch with a plunger actuator. It has a max AC contact current of 7A@115VAC and DC contact current of 7A@28VDC, suitable for panel mounting applications requiring corrosion-proof sealing. With an actuator travel of 1.37mm and max operating force of 4.73N, it offers precise momentary switch action in a compact body measuring 15.64mm x 8.03 inch x 15.24 mm.
XCMD2911L1
311SX2-T
311SX2-T by Honeywell is a SPDT snap action/limit switch with 5A@115VAC AC rating. It has a body width of 5.08in, height of 8.89mm, and operates at max temp of 121°C. Ideal for panel mounting applications requiring momentary switch action with wire termination.
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A-20G
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PIN PLUNGER; Body Length/Diameter: 49.2 mm; Maximum Operating Temperature: 80 Cel;
A-20G-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PIN PLUNGER; Electrical Life: 500000 Cycle(s); Maximum Operating Force: 6.13 N;
A-20GD
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT SPRING PLUNGER; Switch Action: MOMENTARY; Body Height: 24.2 mm;
A-20GD-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT SPRING PLUNGER; Switch Action: MOMENTARY; Body Width: 17.45 inch;
A-20GQ
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLUNGER; Actuator Travel (mm): 6.9; Maximum DC Contact Current: .5 A;
A-20GQ21
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): ROLLER PLUNGER; Maximum DC Contact Voltage: 125 V; Body Height: 24.2 mm;
A-20GQ22
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): ROLLER PLUNGER; Maximum Pre Travel: 1.3 mm; Body Length/Diameter: 49.2 mm;
A-20GQ22-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): ROLLER PLUNGER; Minimum Operating Temperature: -25 Cel; Electrical Life: 500000 Cycle(s);
A-20GQ-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLUNGER; Maximum AC Contact Voltage: 250 V; Maximum Pre Travel: 1.3 mm;
A-20GV
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): HINGE LEVER; Body Width: 17.45 inch; Minimum Operating Temperature: -25 Cel;
A-20GV2
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): HINGE ROLLER LEVER; Maximum Pre Travel: 12 mm; Minimum Operating Temperature: -25 Cel;
A-20GV21
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT HINGE LEVER; Body Width: 17.45 inch; Minimum Operating Temperature: -25 Cel;
A-20GV21-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT HINGE LEVER; Maximum DC Contact Voltage: 125 V; DC Maximum Rating R Load (Contact): .5A@125VDC;
A-20GV22
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT HINGE ROLLER LEVER; Electrical Life: 500000 Cycle(s); Maximum AC Contact Voltage: 250 V;
A-20GV22-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SHORT HINGE ROLLER LEVER; Electrical Life: 500000 Cycle(s); Maximum Operating Temperature: 80 Cel;
A-20GV2-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): HINGE ROLLER LEVER; Switch Action: MOMENTARY; Body Height: 24.2 mm;
A-20GV-B
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): HINGE LEVER; Body Height: 24.2 mm; Electrical Life: 500000 Cycle(s);
A-20GV-B7-K
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): HINGE LEVER; Contact Resistance: 15 mohm; Actuator Travel (mm): 19.9;
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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