Active filters amplify desired signals while rejecting unwanted frequencies, and can be tailored to meet application-specific requirements in electronics.
Amplifiers boost signal strength, match impedance levels, and are essential in many circuit systems, including audio, broadcasting, and telecommunications.
Batteries store and provide electrical energy, come in various types and sizes for multiple uses, rechargeable or single-use.
Capacitors store electrical charge with metallic plates and a dielectric; types vary and can be combined for specific circuit characteristics.
Chip carriers and sockets provide an interface between components and PCBs, enabling easy replacement or upgrading without soldering.
Circuit protection devices prevent damage from overcurrent flow, including fuses, breakers, surge protectors, and voltage regulators.
Connector accessories and support devices aid connector function and longevity, including backshells, grips, clamps, and ties; must be compatible with connector type.
Connectors join electronic circuits to transfer signals and power, come in various sizes and shapes, and include support accessories.
Converters transform DC input to another voltage level, essential in electronic systems, renewable energy, and automotive electronics.
Crystals and resonators generate and stabilize frequency signals via piezoelectricity. They are used in timing, frequency control, and filters. Crystals are quartz and resonators are ceramic with a built-in capacitor.
Semiconductor diodes control current flow in one direction (uni-directionality) via low resistance. Useful for rectification, voltage regulation, detection, and digital logic.
Discover essential electronic components for your devices, including CPU accelerators, system cache controllers, computer processors, motherboards, and graphics computing systems. Enhance device performance and connectivity with reliable components engineered for seamless integration and optimal functionality.
Fiber optics use light pulses to transmit data over long distances. They have superior bandwidth capacity, low signal attenuation, and secure physical properties. They are essential in telecommunications networks today.
Filters enhance signal processing by selectively passing desired frequencies while suppressing unwanted ones. Filters can be passive (using capacitors, resistors, and inductors) or active (using transistors or amplifiers).
Flash devices are non-volatile storage solutions that offer fast read and write speeds, making them ideal for applications requiring high-speed data transfer. These devices utilize flash memory technology, providing reliable storage for data-intensive tasks such as gaming, multimedia, and enterprise-level applications.
General purpose ICs consist of multiple individual circuits or components (e.g., logic gates, amplifiers, oscillators, etc.) that are combined onto a single integrated circuit chip for a smaller physical footprint.
I/O and storage controllers are crucial components in computer systems, managing input/output operations and storage devices. These controllers facilitate efficient data transfer between peripherals, storage drives, and the central processing unit (CPU), enhancing system performance and enabling seamless connectivity.
Inductors store energy in magnetic fields, oppose sudden changes in current flow and prevent electrical surges. Common inductor applications include power supplies, signal filters, and oscillators.
Interface ICs allow efficient device connectivity with high-speed data transfer and low power consumption.They can be ASIC or FPGA types, and may perform additional functions such as sensing, storage, and conversion.
Logic ICs can be used for storage, memory, amplification, and multiplexing. They perform fundamental logical operations on digital input signals (1, 0, H, L) to generate a corresponding digital output signal.
Memory modules are essential components in electronic devices, storing data temporarily or permanently for processing and retrieval. From volatile RAM (Random Access Memory) to non-volatile ROM (Read-Only Memory), memory technologies vary in speed, capacity, and functionality, catering to diverse application requirements.
Memory ICs store digital data and retain the information even when the power is turned off. They come in various types, like RAM (Random Access Memory) for fast data access, and ROM (Read-Only Memory) for permanent data storage.
Miscellaneous semiconductor components are a diverse category of electronic components that combines elements from a mix of component devices.
Optoelectronic devices interact with light. This family of devices can emit light, detect light, generate current, and transmit light signals for long-distance communication.
Oscillators generate repetitive waveforms, such as sine, square, or triangle waves. They are commonly used to produce stable and precise frequencies for applications like clocks, signal generation, and communication systems.
Other Function Semiconductor components are a diverse category of semiconductor components that perform a range of specialized functions.
Passive component networks operate without a power source and support data transmission within system by performing filtering, energy storage, and/or signal coupling functions.
Peripheral ICs (Integrated Circuits) are designed to control and manage the peripheral devices connected to a computer or other electronic device.
Programmable Logic ICs are user-programmable devices that allow designers to create custom logic circuits. These cost saving ICs offer real-time data processing and maximum design flexibilty.
RF (Radio Frequency) and microwave devices are used in telecommunications, wireless communications, and electronic systems. These devices include amplifiers, attenuators, filters, mixers, oscillators, and antennas, and a host of other components.
Voltage regulators are used to ensure a constant output voltage despite power fluctuations and load changes. Linear and switching regulators are common types used to maintain voltage stability.
Relays are electromagnetic switches that are used to control the flow of electrical current in an electrical circuit. Relays are a safe means of providing isolation between a controlling circuit and a controlled circuit.
Resistors control the flow of electrical current in a circuit by introducing a set resistance. These passive components reduce current flow, adjust signal levels, and bias active elements in circuits.
Transducers convert energy from one form to another and are crucial in sensing, audio and control systems. They transform physical measures like temperature, pressure, or sound into electrical signals for circuits.
Storage drives are hardware devices used to store and retrieve digital data in computers and electronic devices. These drives come in various forms, including hard disk drives (HDDs), solid-state drives (SSDs), and hybrid drives, offering different levels of capacity, speed, and durability to suit specific storage needs.
Storage media encompass physical or digital mediums used for storing and preserving digital data. From optical discs and magnetic tapes to USB flash drives and memory cards, storage media come in diverse formats and capacities, offering flexibility and reliability for data storage and archival purposes.
Storage systems comprise hardware and software components designed to manage and store digital data efficiently. These systems range from simple standalone devices to complex network-attached storage (NAS) and storage area network (SAN) solutions, providing scalable storage capacity and data protection features for businesses and enterprises.
Switches control electrical current flow by making or breaking connections. These devices vary in design and application, from basic on/off switches to complex industrial automation systems.
Telecom integrated circuits (ICs) are specialized electronics for telecommunications, tailored to high data rates, low power use, and reliable long-distance transmission. These devices include amplifiers, filters, ADCs, DACs, and more-- and they are often integrated on one chip for specific telecom tasks.
Terminal blocks, or connection terminals, are modular blocks that bring together multiple electrical wires at one connection point. They offer a reliable, organized way to terminate cables.
Thermal management devices control heat in electronic systems, preventing overheating and ensuring optimal performance and reliability. Examples include heat sinks, fans, and thermal interface materials that dissipate or transfer heat away from components.
Transformers are devices that alter electrical voltage levels between circuits through electromagnetic induction. They are vital in power distribution, converting high-voltage electricity for transmission and lower voltage for safe usage.
Transistors are 3-layer semiconductor devices that regulate the flow of electrical current. They function as amplifiers, boosting weak signals, and as switches, controlling the flow of current between terminals.
Triggering devices initiate electronic processes or events in response to specific conditions. These devices support many automated tasks such as activating switches and signals, or turning on lights when motion is detected.
Video cards, also known as graphics cards or GPU (Graphics Processing Unit), are essential components in computers, responsible for rendering graphics and images on display devices. These cards feature dedicated processors and memory, delivering smooth and immersive visual experiences for gaming, multimedia, and professional applications.
Choose from over than a million of proven quality materials. Over 300 manufacturers are presented. From renowned major international players to small independent companies with a proven track record in local markets.
Featured manufacturers
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Actuator Travel (mm): 1.3;
Median Price
$1.138
Lifecycle Status
Suppliers In-Stock
9
In-Stock Inventory
1k+
DigiKey
1+ parts
$1.460
100+ parts
$1.026
1k+ parts
$0.852
10k+ parts
$0.729
Master Electronics
-
$1.036
$0.987
Verical
$1.240
Avnet
$0.657
$0.534
Nova Conductors
$0.618
Electro Sonic
$1.507
$0.990
$0.867
$0.701
IBS Electronics
$1.529
$1.445
Vyrian
Semi Source
Continental Prestige Electronics
$0.606
Argo Parts USA
$0.599
Netroflash
Component Stockers USA
$1.010
$0.770
$0.620
Ampacity Inc.
$1.180
Advanced Electronics
$1.338
$1.218
$1.097
Assy Fe
Perfect Parts
Authorized Procurement Solutions
Keypad Switches KST221GLFS attributes and parameters. Explore more Keypad Switches devices from C & K Components
Length (Actuator):
Actuator Travel (mm):
Type (Actuator):
Additional Features:
Body Width:
Body Height:
Body Length/Diameter:
Center Contact Material:
Circuit Config:
Maximum Contact Bounce Time:
Maximum DC Contact Current:
DC Maximum Power Rating R Load (Contact):
DC Maximum Rating R Load (Contact):
Contact Resistance:
Maximum DC Contact Voltage:
Dielectric Withstand Volts (V):
Electrical Life:
End Contact Material:
Insulation Resistance:
JESD-609 Code:
Mounting Feature:
No. of Switches:
Maximum Operating Force:
Maximum Operating Temperature:
Minimum Operating Temperature:
Packing Method:
Sealing:
Solderability:
Switch Action:
Switch Function:
Switch Type:
Terminal Finish:
Termination Type:
KST221GLFS Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.90.40
SB
C&K is now a part of Littelfuse, Inc. Since its formation in 1928, C&K has been at the forefront of technological evolution in electromechanical switches. The company’s unmatched design capabilities tailored to customer needs are recognized globally by design engineers who demand high-quality switch performance. Nearly a century later, C&K remains one of the most recognizable and trusted names in the e-mech switch industry. C&K has headquarters in Waltham, Massachusetts (United States) and global design centers at its HQ location alongside Dole (France) and Huizhou (China). Used in automotive, industrial, medical and consumer products, among other applications, C&K products – including tactile, rocker and toggle switches – are assembled in over 55,000 standard products and 8.5 million switch combinations to companies that design, manufacture and distribute electronics products. So whether you’re interested in a universal paddle switch assembly for a fire alarm, a compact start/stop button for a boating application, a switching mechanism for a surgical device with a specific actuation force, or a tailor-made multi-position snap-switch module for temperature adjustment, you can count on C&K to deliver the best possible solution every time.
1N4148
Sangdest Microelectronics (Nanjing)
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
BAV99
Rectron
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
Lite-on Semiconductor
LM358AN
Signetics
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
1N4148WS
Promax-johnton
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
ULN2803A
Motorola
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Terminal Position: DUAL; JESD-30 Code: R-PDIP-T18;
Toshiba
BAV99-7-F
Multicomp Pro
STM32H743ZIT6
STMicroelectronics
STM32H743ZIT6 by STMicroelectronics is a 32-bit microcontroller with integrated cache and a max supply voltage of 3.6V. It is commonly used in industrial applications, offering features such as 21 timers, CAN and USB connectivity, and low power mode.
DS18B20Z/T&R
Maxim Integrated
DS18B20Z/T&R by Maxim Integrated is a 12-bit digital temperature sensor with a max supply voltage of 5.5V and an accuracy of 0.50°C. It features a 1-Wire interface, operates b/w -55°C to 125°C, and is ideal for applications requiring precise temperature monitoring in compact spaces.
BSS138K-13
Diodes Incorporated
BSS138K-13 by Diodes Inc. is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, operating in enhancement mode. With 3 terminals and 0.31A max drain current, it offers high performance in small outline package style.
Surge Components
LM107H
Rochester Electronics
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Code: TO-99; Package Shape: ROUND;
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;
LL4148
General Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
General Diode
RECTIFIER DIODE; Surface Mount: NO; Maximum Output Current: .15 A; Maximum Reverse Recovery Time: .004 us; Terminal Finish: Tin/Lead (Sn/Pb); No. of Elements: 1;
FDV303N
Fairchild Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Transistor Application: SWITCHING; JESD-609 Code: e3;
North American Philips Discrete Products Div
RECTIFIER DIODE; Surface Mount: NO; Maximum Forward Voltage (VF): 1 V; JESD-609 Code: e0; Maximum Repetitive Peak Reverse Voltage: 100 V; Terminal Finish: Tin/Lead (Sn/Pb);
LM317LMX/NOPB
Texas Instruments
LM317LMX/NOPB by Texas Instruments is an adjustable positive single output standard regulator with a max input-output voltage differential of 40V. It operates in temperatures ranging from -40°C to 125°C and has a max output current of 0.1A, making it suitable for various applications requiring precise voltage regulation.
DTSM-63N-V-T/R
Diptronics Manufacturing
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): DOMED TYPE; Maximum Operating Force: 2.06 N; Maximum DC Contact Voltage: 12 V;
3CSH9
Apem Components
The Apem Components 3CSH9 keypad switch has an electrical life of 10M cycles, IP67 sealing, and SPST switch function. Ideal for applications requiring a durable pushbutton switch with a max DC contact voltage of 24V. Suitable for use in environments with temperatures ranging from -40°C to 160°C.
B3F-4050
Omron
Omron B3F-4050 Keypad Switch features SPST switch function, 3000000 cycle electrical life, and 100000000 ohm insulation resistance. Ideal for applications requiring momentary-tactile switch action with 1.76N max operating force and 0.05A@24VDC DC max rating R load.
MX1A-21NW
The Cherry
The Cherry MX1A-21NW keypad switch features SPST switch function, 4.2926mm actuator travel, and 0.01A@12VAC AC max rating R load. Ideal for applications requiring OFF-(ON) contact function with solvent washability and through hole-straight mounting feature.
DTSM-65R-V-T/R
The Apem Components DTSM-65R-V-T/R is a red keypad switch with SPST function, 100000 cycles electrical life, and 3.04N max operating force. Ideal for surface mount applications requiring momentary-tactile switch action at temperatures ranging from -25°C to 70°C.
MCSLPT4644B4PHTR
TE Connectivity
TE Connectivity's MCSLPT4644B4PHTR is a SPST Keypad Switch with 500000 cycles Electrical Life. It features SILVER plating, THERMOPLASTIC insulator, and STAINLESS STEEL contacts. Ideal for PANEL MOUNT applications with 0.2mm Actuator Travel and 2.548N Max Operating Force.
B3W-9002-RG2C
Omron's B3W-9002-RG2C keypad switch offers 300K cycles electrical life, with green and red LED illumination. Ideal for applications requiring a plunger-type SPST switch with 100M ohm insulation resistance. Operating temperatures range from -25 to 70°C, making it suitable for various industrial settings.
USLPT3737AL5TR
TE Connectivity's USLPT3737AL5TR is a POLYETHYLENE keypad switch with SPST function. It operates b/w -40 to 85 °C, with max AC contact current of 0.05 A. Ideal for panel mount applications, featuring FLUSH TOP TYPE actuator and SILVER plating on center contact.
MJTP1236A
The Apem Components MJTP1236A is a black keypad switch with stainless steel housing. Featuring SPST switch function, it has an electrical life of 100000 cycles and insulation resistance of 100M ohm. Ideal for applications requiring momentary-tactile switch action in environments with temperatures ranging from -20°C to 70°C.
FSM4JH
Tyco Electronics Alcoswitch
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Type (Actuator): ROUND/EXTENDED TYPE; Circuit Config: 1X1; Switch Action: MOMENTARY-TACTILE; JESD-609 Code: e4;
EVQP44B3M
Panasonic
The Panasonic EVQP44B3M keypad switch has an electrical life of 500K cycles, SPST switch function, and max operating force of 2.4N. Ideal for surface mount-right angle applications with a body width of 2.55in and body height of 3.5mm. Operating temperature range from -40 to 85°C makes it versatile for various environments.
PTS810SJM250SMTRLFS
C & K Components
PTS810SJM250SMTRLFS by C & K Components is a GRAY keypad switch with SPST function. It has an electrical life of 150,000 cycles and insulation resistance of 100M ohm. Ideal for applications requiring a momentary-tactile switch with surface mount-straight mounting feature.
TL6120DF300QG
E-switch
TL6120DF300QG by E-switch is a SPST keypad switch with 500000 cycles electrical life. It has 100000000 ohm insulation resistance and operates b/w -40 to 85 °C. Ideal for applications requiring momentary switch action, such as surface mount straight mounting features.
SKHHAQA010
Alps Alpine
Alps Alpine SKHHAQA010 is a RED SPST Keypad Switch with 200000 cycles Electrical Life. Featuring 0.25mm Actuator Travel, it operates b/w -40 to 90 °C. Ideal for applications requiring MOMENTARY-TACTILE switch action and THROUGH HOLE-STRAIGHT mounting with 2.55N Max Operating Force.
MSLPT5252CL1BTR
TE Connectivity's MSLPT5252CL1BTR is a black keypad switch with SPST function. Made of polyethylene, it has a max operating temperature of 70°C and can handle up to 0.05A AC/DC current. Ideal for panel mounting applications requiring a durable and reliable switch solution.
D6C90F2LFS
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): SQUARE TYPE; Solderability: HAND/WAVE; Body Color: BLACK;
KSS241GLFS
Itt Cannon
KSS241GLFS by ITT Cannon is a SPST keypad switch with 100000 cycle electrical life and 1VA@32VDC DC max power rating. With IP40 sealing, it's ideal for applications requiring a momentary-tactile switch type, such as surface mount-right angle mounting in electronic devices.
1.14.100.501/0000
Rafi & Kg
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum DC Contact Voltage: 35 V; Termination Type: SOLDER; No. of Switches: 1;
TL3780AF330QG
TL3780AF330QG by E-switch is a SPST keypad switch with an electrical life of 300,000 cycles. It has a max operating temperature of 85°C and a min operating temperature of -40°C. This switch is commonly used in applications that require momentary-tactile action and surface mount-straight mounting feature.
5GSH93582
The Apem Components 5GSH93582 Keypad Switch features a POLYPHENYLENE SULPHIDE housing, COPPER TIN ALLOY terminals, and RED LED illumination. With an electrical life of 10M cycles, it is ideal for applications requiring a SPST switch function in environments with temperatures ranging from -30 to 85°C. IP67 sealing ensures durability in various settings.
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KST221JLFS
ITT Cannon
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; DC Maximum Rating R Load (Contact): .01A@32VDC; Body Height: 2.6 mm;
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Dielectric Withstand Volts (V): 250VRMS;
KST221GLFS
KST221GLFS by ITT Cannon is a 6.2mm keypad switch with SPST function, IP40 sealing, and soft type actuator. It operates b/w -40°C to 85°C, suitable for surface mount applications requiring 2N operating force and 0.01A@32VDC contact rating. Ideal for electronics requiring momentary-tactile switch action in tape and reel packaging.
KST221G
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Termination Type: SOLDER;
KST221J
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Maximum DC Contact Current: .05 A;
KST241G
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Maximum Operating Temperature: 85 Cel;
KST241J
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; End Contact Material: SILVER;
KST221GLFG
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Maximum DC Contact Voltage: 32 V;
KST221JLFG
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; DC Maximum Power Rating R Load (Contact): 1VA@32VDC;
KST241GLFG
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Sealing: IP40;
KST241JLFG
KST241GLFS
KST241JLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Additional Features: TAPE/REEL PKG.;
KST241JTBLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Minimum Operating Temperature: -40 Cel;
Supply Digital Components
$106.00
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Total price ≈ $80,197.29
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