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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Suppliers In-Stock
3
In-Stock Inventory
< 1k
DigiKey
1+ parts
100+ parts
$25.934
1k+ parts
$24.504
10k+ parts
-
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:
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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.
1552200168
Molex
WIRE AND CABLE;
LL4148
Surge Components
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
MBRM140T1G
Onsemi
MBRM140T1G by Onsemi is a Schottky rectifier diode with 40V max repetitive peak reverse voltage, 1A max output current, and 0.3V max forward voltage. It is used in applications requiring small outline surface mount diodes for efficient power management.
BAV99
Microsemi
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Bytesonic Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
SMBJ18CA
Telefunken Microelectronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
KSZ9031RNXIC
Microchip Technology
KSZ9031RNXIC by Microchip Technology is a network interface chip with 1 transceiver. It operates at a data rate of 1000 Mbps and has a nominal voltage of 1.2V. This chip is commonly used in industrial applications requiring Ethernet connectivity.
2N7002
Siliconix
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Drain Current (ID): .115 A; Operating Mode: ENHANCEMENT MODE;
ULN2803A
Allegro MicroSystems
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Maximum Operating Temperature: 85 Cel; Terminal Form: THROUGH-HOLE;
SS14
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WS
Taiwan Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Changzhou Galaxy Century Microelectronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Taitron Components
MBRA160T3G
MBRA160T3G by Onsemi is a Schottky rectifier diode with a max output current of 1A and forward voltage of 0.51V. It operates b/w -55 to 150°C, has a reverse test voltage of 60V, and is ideal for power applications due to its high efficiency and small outline package style.
Fagor Electronica S Coop
LM358M
National Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
Won-top Electronics
LAN8720A-CP-TR
Standard Microsystems
ETHERNET TRANSCEIVER; Temperature Grade: OTHER; Terminal Form: NO LEAD; No. of Terminals: 24; Package Code: HVQCCN; Package Shape: SQUARE;
LM317LMX/NOPB
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 8; Package Code: SOP; Terminal Form: GULL WING; Maximum Seated Height: 1.75 mm; Nominal Dropout Voltage-1: 3 V;
General Semiconductor
SS-5GLT
Omron
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.
SS-5GL111-F-3D
SNAP ACTING/LIMIT SWITCH;
V7-1C28E9
Honeywell Sensing And Control
Honeywell Sensing And Control's V7-1C28E9 is a 10.16" snap action switch with SPST function, ideal for panel mounting applications. It offers a max AC contact current of 15.1A@277VAC and DC contact current of 0.5A@125VDC, with an actuator travel of 2.46mm and quick connect termination type.
E79-00A
Zf Friedrichshafen Ag
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: DPDT; Type (Actuator): PUSHBUTTON; Contact Function: ON-(ON); Body Width: 13.72 inch;
5HM1
5HM1 by Honeywell Sensing And Control is a Snap Action & Limit Switch with SPDT switch function. It features a body width of 6.35 inch, hermetically sealed for corrosion proof sealing, and can operate at temperatures ranging from -184 to 260 °C. Ideal for panel mounting applications requiring momentary switch action with max AC contact current of 2.5A@115VAC and DC contact current of 4A@28VDC.
MS27994-1
Defense Logistics Agency
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.
411SX21-T
411SX21-T by Honeywell Sensing And Control is a SPDT snap action/limit switch with PLUNGER actuator. It has a body width of 5.08" and max operating temperature of 204°C, making it suitable for PANEL MOUNT applications requiring momentary switch action and 1.39N max operating force.
XCKJ10511D
Schneider Electric Sa
ADPFF3J04AY
C & K Components
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: DPST; Type (Actuator): HIGH OVER TRAVEL PLUNGER; Actuator Travel (mm): 6.02; AC Maximum Power Rating R Load (Contact): 2HP@250VAC;
D3V-163-1C5
Omron D3V-163-1C5 is a snap action/limit switch with SPDT function. It has an electrical life of 100k cycles, IP00 sealing, and operates b/w -25°C to 105°C. With a max AC contact current of 16A@250VAC, it's ideal for panel mounting applications requiring momentary switch action.
DB2CC1AA
The Cherry
The Cherry's DB2CC1AA snap action switch has a 6000 cycle electrical life, SPDT switch function, and IP50 sealing. With a max operating temperature of 120°C, it is ideal for applications requiring a reliable limit switch with a max AC contact current of 10.1A at 250VAC.
ZCMD21L08R12
DB1CB1AA
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SPHERICAL HEAD TYPE; Maximum DC Contact Voltage: 48 V; Electrical Life: 6000 Cycle(s);
914CE3-3G
The Honeywell Sensing And Control 914CE3-3G is a SPDT snap action/limit switch with IP66, IP67, and IP68 sealing. It has a max operating temperature of 70°C and min of 0°C. With an actuator travel of 4mm, it is suitable for panel mounting applications requiring momentary switch action.
GLCB01A1B
GLCB01A1B 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. This side rotary type switch is suitable for applications requiring momentary switch action in harsh environments.
LSA2B
LSA2B by Honeywell Sensing And Control is a DPDT snap acting/limit switch with EPOXY TERMINAL SEALING (IP65, IP66, IP67). It has a max operating temperature of 121°C and can handle up to 10A@600VAC. Ideal for panel mounting applications requiring momentary switch action in harsh environments.
BZ-2RW822-A2
BZ-2RW822-A2 by Honeywell Sensing And Control is a SPDT snap action/limit switch with 16A@250VAC AC max rating. Featuring a steel roller actuator, it has an actuator travel of 2.39mm and max operating force of 1.67N. Ideal for panel mounting applications requiring momentary switch action in industrial settings.
D2F-01L2
The Omron D2F-01L2 is a snap action and limit switch with a body width of 5.8 inch and sealing rating of IP40. It has a max operating temperature of 65 °C and is commonly used in applications requiring momentary switch action, such as control panels or industrial machinery.
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.
XCKJ10543H29LC
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
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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