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
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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
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Keypad Switches KST221GLFS attributes and parameters. Explore more Keypad Switches devices from C & K Components
Length (Actuator):
Actuator Travel (mm):
Type (Actuator):
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Body Width:
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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.
SS14
Taitron Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Good-ark Electronics
RECTIFIER DIODE; Surface Mount: NO; No. of Elements: 1; Maximum Non Repetitive Peak Forward Current: .5 A; Maximum Forward Voltage (VF): 1 V; No. of Phases: 1;
M39029/58-360
Fct Electronic
CONNECTOR ACCESSORY; IEC Conformity: NO; Alternate Contact Sources: MILITARY; MIL Conformity: YES; Contact Gender: MALE; MIL-Connector Accessory Name: CONTACT;
BAV99-7-F
Multicomp Pro
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
Boca Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
M39029/56-351
Defense Logistics Agency
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Gender: FEMALE; Mating Contacts: M39029/58-363; Removal Tool Sources: MILITARY; Alternate Contact Sources: MILITARY;
MC7805CTG
Onsemi
MC7805CTG by Onsemi is a fixed positive single output standard regulator with an output voltage of 5V and max current of 1A. It operates in temperatures ranging from 0 to 125°C, making it suitable for various applications requiring stable voltage regulation. The package style is flange mount with through-hole terminals, ensuring easy installation and reliability in diverse electronic designs.
43025-0400
Molex
The Molex 43025-0400 is a board connector with 4 contacts, 2 rows, and a mating contact pitch of 0.118". It has a body length of 0.27", insulation resistance of 1Gohm, and operates b/w -40 to 105°C. Ideal for commercial applications requiring a female connector with crimp termination and UL94V-0 flammability rating.
Toshiba
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
LM317TG
Texas Instruments
LM317TG by Texas Instruments is an adjustable positive single output standard regulator with a max output voltage of 37V and max output current of 1.5A. It operates in temperatures ranging from 0 to 125°C, making it suitable for various applications requiring precise voltage regulation in electronic circuits. The package style is flange mount, with a rectangular shape and through-hole terminals for easy installation.
Jgd Semiconductors
RECTIFIER DIODE; Surface Mount: NO; Maximum Operating Temperature: 175 Cel; Maximum Reverse Recovery Time: .004 us; Maximum Non Repetitive Peak Forward Current: .5 A; Maximum Forward Voltage (VF): 1 V;
1N4148WT-7
Diodes Incorporated
1N4148WT-7 by Diodes Inc. is a fast recovery rectifier diode with a max reverse recovery time of 0.004 us and a max forward voltage of 1.25 V. It has a package style of small outline, making it suitable for surface mount applications where high-speed switching is required at temperatures ranging from -65 to 150 °C.
RK73H2ATTD10R0F
Koa Speer Electronics
RK73H2ATTD10R0F by Koa Speer Electronics is a 0805 SMT fixed resistor with 10 ohm resistance, 1% tolerance, and 0.25 W power dissipation. Ideal for surface mount applications in automotive electronics due to its AEC-Q200 reference standard and operating voltage of 150 V.
1N4148WT
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
NDT2955
National Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 3 W; JESD-609 Code: e0; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR;
ULN2803ADWRG4
ULN2803ADWRG4 by Texas Instruments is a peripheral driver with 8 functions, open-collector output, and built-in transient protection. It operates b/w -40 to 85 °C with a max supply voltage of 3 V. Ideal for applications requiring sink current flow direction in a small outline package style.
SMBJ18CA
General Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148-GS08
Telefunken Microelectronics
RECTIFIER DIODE; Surface Mount: YES; JESD-609 Code: e0; No. of Elements: 1; Maximum Operating Temperature: 175 Cel; Maximum Non Repetitive Peak Forward Current: 2 A;
Diotec Semiconductor Ag
LM358N
Motorola
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
EVQP7M01K
Panasonic
The Panasonic EVQP7M01K is a SPST keypad switch with 100000 cycles electrical life. It operates b/w -20 to 70°C, with a max DC contact voltage of 12V and current of 0.05A. Ideal for surface mount-right angle applications, it has a compact body size of 2.9" x 1.35mm x 3.5mm and requires an operating force of 1.6N.
TL1105BF160Q
E-switch
TL1105BF160Q by E-switch is a SPST keypad switch with 100000 cycle electrical life. Featuring silver-plated brass terminals, it has an actuator travel of 0.25mm and operates b/w -20 to 70°C. Ideal for applications requiring momentary-tactile switch action and through-hole mounting.
1825910-6
Tyco Electronics Alcoswitch
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Minimum Operating Temperature: -35 Cel; Body Length/Diameter: 5.99 mm; Maximum DC Contact Voltage: 24 V;
KSS221GLFS
C & K Components
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): STANDARD TYPE; Solderability: REFLOW; No. of Switches: 1;
4-1437565-9
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Body Length/Diameter: 6 mm; DC Maximum Rating R Load (Contact): .05A@24VDC; Maximum DC Contact Current: .05 A;
PTS647SN50SMTR2LFS
PTS647SN50SMTR2LFS by C & K Components is a SPST Keypad Switch with 100000 cycle Electrical Life and 100000000 ohm Insulation Resistance. With a compact design of 4.5mm body width and 2.9mm body height, it's ideal for applications requiring a momentary-tactile switch action in temperatures ranging from -20 to 70°C.
95C05B3GWRT
Grayhill
Grayhill 95C05B3GWRT Keypad Switch offers SPST switch function with 1000000 cycles electrical life. With a body width of 5.2", it operates b/w -25 to 70°C, ideal for applications requiring momentary-tactile action and surface mount-straight mounting.
3ESH9-08.0
Apem Components
The Apem Components 3ESH9-08.0 keypad switch has an electrical life of 10M cycles, IP67 sealing, and operates b/w -40°C to 160°C. Ideal for surface mount applications with a max DC contact voltage of 24V, it is commonly used in industrial control panels.
ADTS61RV
ADTS61RV by Apem Components is a red keypad switch with a stainless steel housing. It has a single switch and a thermoplastic actuator with an actuator travel of 0.254mm. This switch is commonly used in applications that require momentary-tactile action, such as control panels or industrial equipment.
KSS231GLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): STANDARD TYPE; Solderability: REFLOW; Packing Method: TR, 13 INCH;
431256058716
Wuerth Elektronik & Kg
431256058716 by Wurth Elektronik is a black keypad switch with steel housing and copper alloy terminals. With an electrical life of 200,000 cycles, it is ideal for applications requiring momentary switch action. Featuring a max operating force of 2.06N and solder termination, this switch is suitable for various electronic devices.
434111025826
Wurth Elektronik 434111025826 is a white keypad switch with stainless steel housing. It has SPST switch function, 0.25mm actuator travel, and 3.24N max operating force. Ideal for applications requiring momentary-tactile action in electronics or industrial control systems.
EVQP6YB55
The Panasonic EVQP6YB55 keypad switch has an electrical life of 500K cycles, SPST switch function, and dust-proof sealing. Ideal for applications requiring a momentary switch with a max operating force of 2.4N, such as consumer electronics or industrial control systems. Operating temperature range from -20°C to 70°C ensures reliable performance in various environments.
KSC422G70SHLFS
KSC422G70SHLFS by C & K Components is a SPST keypad switch with 1000000 cycle electrical life, IP67 sealing, and 1VA@32VDC DC max power rating. Ideal for applications requiring a soft type actuator, this switch operates b/w -40 to 85 °C temperatures and has a compact body size of 6.2mm x 2.9mm.
KMS231GPLFS
KMS231GPLFS by C & K Components is a SPST keypad switch with 100000 cycle electrical life, 1VA@32VDC DC power rating, and IP40 sealing. It is ideal for applications requiring momentary-tactile switch action in temperatures ranging from -40 to 85 °C, featuring SILVER contact materials and SOLDER termination.
EVQPUK02K
The Panasonic EVQPUK02K is a SPST Keypad Switch with 100000 cycles electrical life. It operates b/w -20 to 70°C, with max DC contact voltage of 12V and current of 0.05A. Ideal for surface mount-right angle applications, it has a compact body size of 3.5" x 1.65mm x 4.7mm and requires an operating force of 2.3N.
KSA0M412LFT
Itt Cannon
ITT Cannon's KSA0M412LFT keypad switch features IP65 sealing, SPST switch function, and 6.2mm body width. Ideal for applications requiring a max operating force of 3N, such as industrial control panels or outdoor electronic devices.
FSM101
TE Connectivity
TE Connectivity's FSM101 Keypad Switch features SPST switch function, 0.05A max AC/DC contact current, and 1.568N max operating force. Ideal for panel mounting applications in electronics with black housing and polyester actuator material.
SWT4-J1WTR
Tt Electronics Plc
SWT4-J1WTR by Tt Electronics Plc is a 4.6mm keypad switch with SPST function, STEM actuator, and 1X1 circuit config. It operates b/w -20 to 70°C, handles up to 12V DC voltage, and has a max force of 1.57N. Ideal for surface mount applications requiring momentary-tactile feedback in electronic devices.
5-1437565-0
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; JESD-609 Code: e4; Body Length/Diameter: 6 mm; Body Height: 3.6 mm;
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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;
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