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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21SX39-T by Honeywell Sensing And Control is a SPDT snap action/limit switch with a body width of 5.08" and height of 8.89mm. It has a max operating temperature of 85°C, AC contact current of 7A, and DC contact voltage of 28V. Ideal for panel mounting applications requiring a plunger actuator with momentary switch action.
Median Price
$19.750
Lifecycle Status
Suppliers In-Stock
25
In-Stock Inventory
1k+
Powell Electronics
1+ parts
$14.860
100+ parts
-
1k+ parts
$10.310
10k+ parts
$9.510
Sager
$15.300
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$11.920
TTI
$15.680
$10.810
$10.390
DigiKey
$19.200
$13.250
Newark
Master Electronics
$20.360
$9.630
$9.500
Mouser Electronics
$22.700
$14.370
$12.970
RS Americas
$24.440
$17.350
RS (Exports)
$25.070
Element14
$26.810
$25.270
Verical
$13.397
PEI Genesis
Chip1Stop
Nova Conductors
$12.940
TME
$24.520
$22.830
Vyrian
IBS Electronics
$13.001
$12.861
Bisco
Electro Sonic
$10.400
$9.390
Electro Enterprises
FDH Electronics
VNN
Century Electronics Ltd.
Jaybe Electronics
Q Components
Aztec Data Supply Inc.
$0.944
Corohmni
$1.135
Semicontronic
$8.900
$8.678
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Ampacity Inc.
Advanced Electronics
$11.515
Continental Prestige Electronics
$12.895
$12.637
Netroflash
$12.293
$12.034
Allen Electronics Distributors
$19.160
$15.900
Neutron USA
$61.030
Perfect Parts
Argo Parts USA
Robosynatics
$10.852
Lucentia Tech
The wide body provides stability and durability to the switch, making it suitable for heavy-duty applications.
Single-Pole Double-Throw function allows for versatile control options, making it ideal for various circuit configurations.
The low profile design makes it suitable for applications with limited space, offering flexibility in installation.
With a high operating temperature, this switch can withstand harsh environmental conditions, ensuring reliable performance.
The high current rating allows for handling of heavy electrical loads, making it suitable for industrial applications.
Gold terminal finish provides excellent conductivity and corrosion resistance, ensuring reliable electrical connections.
The precise actuator travel ensures accurate and consistent switching, enhancing the overall performance of the switch.
The plunger-type actuator offers a tactile feedback and precise control, making it suitable for applications where accuracy is critical.
The high DC contact voltage rating allows for safe operation in DC circuits, providing versatility in application.
The snap acting feature provides quick switching action, while the limit switch function offers precise control over the system.
The high AC contact voltage rating ensures compatibility with standard AC circuits, making it suitable for a wide range of applications.
The low operating force requirement ensures ease of actuation, reducing operator fatigue and improving user experience.
Solder termination provides a reliable and secure connection, minimizing the risk of electrical faults or disconnections.
The minimal pre-travel distance ensures quick response and reduces lag time in switching, enhancing the efficiency of the switch.
Panel mounting allows for easy and secure installation on control panels or equipment, ensuring stability and ease of access for maintenance.
Snap Action & Limit Switches 21SX39-T attributes and parameters. Explore more Snap Action & Limit Switches devices from Honeywell Sensing And Control
Actuator Travel (mm):
Type (Actuator):
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:
Mounting Feature:
Maximum Operating Force:
Maximum Operating Temperature:
Maximum Pre Travel:
Switch Action:
Switch Function:
Switch Type:
Terminal Finish:
Termination Type:
21SX39-T Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.70.00
SB
Honeywell traces its roots to 1885 with Albert Butz's firm, Butz-Thermo Electric Regulator, which produced a predecessor to the modern thermostat. Today, Honeywell is a global multi-industry behemoth with one of the largest installed bases of equipment. The firm operates through four business segments, including aerospace, building technologies, performance materials and technologies, and safety and productivity solutions. In recent years, the firm has made several portfolio changes, including the addition of Intelligrated in 2016, as well as the spins of Garrett Technologies and Resideo in 2018. In 2019, the firm launched Honeywell Forge, its enterprise performance management software solution that leverages the firm's domain expertise in buildings, airlines, and critical infrastructure.
SS14
Changzhou Starsea Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Unisonic Technologies
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Package Body Material: PLASTIC/EPOXY; Package Shape: RECTANGULAR;
LL4148
First Components International
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
2N2222A
Solid State Devices
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
LM358AN
Fairchild Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
261
Deltrol Controls
Other Relays;
1N4148WS
General Instrument
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Rectron
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Operating Mode: ENHANCEMENT MODE; Maximum Operating Temperature: 150 Cel; Terminal Form: GULL WING;
LM555CN
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
BAV99WT1G
Onsemi
BAV99WT1G by Onsemi is a series connected diode with 0.006 us reverse recovery time. It is a small outline rectifier diode with 70V peak reverse voltage, ideal for surface mount applications in electronics requiring fast switching and low forward voltage drop.
Pro-an Electronic
CL31B104KBCNNNC
Samsung Electro-mechanics
Samsung Electro-mechanics CL31B104KBCNNNC is a ceramic capacitor with 0.1uF capacitance and 50V rated DC voltage. It features X7R temperature characteristics, -55 to 125 °C operating range, and compact SMT package style. Ideal for applications requiring high reliability in compact electronic devices.
BAV99
Plessey Semiconductors Discrete Components Div
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LM358N
STMicroelectronics
Philips Semiconductors
M39029/56351
Souriau
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Gender: FEMALE; Insertion Tools: M81969/14-10; Tool Settings: M22520/2-10; DIN Conformity: NO;
Excel (Suzhou) Semiconductor
1N4148
Silicon Standard
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
DS18B20
Dallas Semiconductor
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 3; Package Shape or Style: ROUND; Housing: PLASTIC; Output Interface Type: 1-WIRE INTERFACE;
AVT32423
Panasonic
AVT32423 by Panasonic is a SPDT snap action/limit switch with 50000 cycles electrical life. Featuring a simulated roller lever actuator, it has a max operating force of 0.16N and operates at temperatures ranging from -25 to 85°C. Ideal for panel mounting applications requiring momentary switch action with AC contact voltage up to 250V and DC contact current up to 3A.
LSXYMB4N
Honeywell Sensing And Control
LSXYMB4N by Honeywell Sensing And Control is a 41.4" wide, 116.8mm high snap acting/limit switch with DPDT switch function and side rotary actuator type. It is explosion proof, operates b/w -1°C to 121°C, handles up to 10A@240VDC current, and has a max AC contact voltage of 600V. Ideal for panel mounting applications requiring momentary switch action in hazardous environments.
DB2CA1RC
Zf Friedrichshafen Ag
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): ROLLER LEVER; Body Width: 6.45 inch; Additional Features: ELECTRICAL LIFE AND ELECTRICAL RATING FOR EN ALSO AVAILABLE;
D4C-1601
Omron
Omron D4C-1601 is a SPDT snap action/limit switch with 200000 cycles electrical life. With IP67 sealing, it operates b/w -10°C to 70°C. Ideal for panel mounting applications, it has a max AC contact current of 5A@250VAC and DC contact current of 4A@30VDC.
WLG2-LDS-DGJS03
SNAP ACTING/LIMIT SWITCH; Manufacturer Series: WL;
GLLA01A2B
GLLA01A2B by Honeywell Sensing And Control is a SPDT snap acting/limit switch with IP66 sealing. It has a max operating temperature of 80°C and can handle up to 10A@300VAC. Ideal for panel mounting applications requiring a durable switch with roller type actuator.
DT-2R-A7
The Honeywell Sensing And Control DT-2R-A7 is a DPDT snap action/limit switch with 10A@250VAC AC max rating. With a body width of 17.45 inch and height of 31.24 mm, it offers momentary switch action and screw termination type for panel mounting applications. Its actuator travel is 2.04mm, making it suitable for various industrial control systems requiring precise switching capabilities.
V-165-1C5
Omron V-165-1C5 is a SPDT snap action/limit switch with 100000 cycles electrical life, IP40 sealing, and 16A@250VAC AC max rating. It features a short hinge roller lever actuator for applications requiring momentary switch action in industrial panels.
SS-01D2
Omron SS-01D2 is a SPDT snap action/limit switch with 200000 cycles electrical life. Featuring IP40 sealing, it has a max operating force of 1.47N and operates at temperatures ranging from -25°C to 85°C. Ideal for applications requiring momentary switch action and through hole-right angle mounting.
DH2CB1PA
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): SIMULATED ROLLER; Terminal Length: .122 inch; Body Width: 2.69 inch;
EXD-AR30-3
Honeywell Sensing And Control's EXD-AR30-3 is a SNAP ACTING/LIMIT SWITCH with DPDT switch function. It has an EXPLOSION PROOF sealing and adjustable roller lever actuator type. With a max AC contact current of 10A@250VAC, it is ideal for PANEL MOUNT applications in environments with temperatures ranging from -40 to 71 °C.
23AC2
23AC2 by Honeywell Sensing And Control is a SPDT snap action/limit switch with 15A@250VAC AC rating and 0.5A@125VDC DC rating. Featuring ROD TYPE actuator, it has a body width of 13.21 inch and panel mounting feature. Ideal for applications requiring momentary switch action in various industries.
GLDA01A2B
GLDA01A2B by Honeywell Sensing And Control is a SPDT snap action/limit switch with IP66 sealing. It has a max AC contact current of 6A@120VAC and a max DC contact current of 0.55A@125VDC. Ideal for panel mounting applications, it features a side rotary adjustable lever actuator.
9007AO1B
Schneider Electric Sa
SNAP ACTING/LIMIT SWITCH;
BZ-2RQ784
BZ-2RQ784 by Honeywell is a 17.45" wide snap action/limit switch with SPDT function, corrosion-proof sealing, and steel roller actuator. It has a max AC contact current of 15A@480VAC and operating force of 3.61N. Ideal for panel mounting applications requiring momentary switch action.
BZ-RX47
BZ-RX47 by Honeywell Sensing And Control is a SPDT snap action/limit switch with 15A@480VAC AC max rating. Featuring a plastic plunger actuator, it has a 0.68mm actuator travel and 8.34N max operating force. Ideal for panel mounting applications requiring momentary switch action.
83845001
Crouzet
MS-27994-1
MS-27994-1 by Honeywell Sensing And Control is a 8.03" snap action/limit switch with SPDT function, 7A@115VAC AC rating, and corrosion-proof sealing. It features a plunger actuator type, 1.37mm travel, and 4.73N operating force. Ideal for panel mounting applications requiring momentary switch action at up to 115VAC voltage or 28VDC current loads.
AV4424
The Panasonic AV4424 is a SPDT snap action/limit switch with 20000 cycles electrical life. Featuring a 2.5" wide body and HINGE LEVER actuator, it operates b/w -25°C to 80°C. Ideal for applications requiring momentary switch action, with max DC contact voltage of 30V and current of 0.5A@30VDC.
DG13-B2LA
Hirose Electric
The Hirose Electric DG13-B2LA snap action/limit switch features SPDT switch function, 10000 cycles electrical life, and 3A@125VAC AC max rating. With a body width of 6.5 inch and terminal material made of brass, it is ideal for applications requiring momentary switch action in industrial equipment. The switch's polyester housing and through hole-right angle mounting make it suitable for use in various electronic devices.
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21SX39-T2
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLASTIC PLUNGER; Maximum DC Contact Current: 7 A; Switch Action: MOMENTARY;
21SX1-T
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLASTIC PLUNGER; Body Height: 8.89 mm; Actuator Travel (mm): .6;
21SX88
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLASTIC PLUNGER; Maximum Pre Travel: .51 mm; Actuator Travel (mm): .6;
21SX39-H58
SNAP ACTING/LIMIT SWITCH; Mounting Feature: PANEL MOUNT; Switch Function: SPDT; Type (Actuator): PLASTIC PLUNGER; Maximum DC Contact Current: 7 A; Body Width: 5.08 inch;
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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