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; Dielectric Withstand Volts (V): 250VRMS;
Median Price
$0.900
Lifecycle Status
Suppliers In-Stock
20
In-Stock Inventory
1k+
Arrow
1+ parts
$0.898
100+ parts
$0.763
1k+ parts
$0.735
10k+ parts
-
DigiKey
$0.703
$0.593
Chip1Stop
$0.919
$0.580
Farnell
$0.936
$0.661
$0.547
Element14
$1.510
$1.190
Mouser Electronics
$1.530
$1.130
$0.850
$0.776
Newark
$1.730
$1.280
$0.974
Master Electronics
$0.633
$0.589
Verical
PEI Genesis
NEP Electronics
$0.659
TTI
$0.750
$0.720
Nova Conductors
$0.635
Electro Sonic
$0.599
$0.587
IBS Electronics
$0.870
Vyrian
Goldney Electronics S.L.
ComSIT Distribution GmbH
Bristol Electronics
Prism Electronics
Ampacity Inc.
$0.405
Continental Prestige Electronics
$0.622
Argo Parts USA
$0.616
Netroflash
$0.603
$0.591
Perfect Parts
Assy Fe
Authorized Procurement Solutions
Kepictronics
Keypad Switches KST221JLFS attributes and parameters. Explore more Keypad Switches devices from C & K Components
Length (Actuator):
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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:
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KST221JLFS 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
Forward International Electronics
RECTIFIER DIODE; Surface Mount: NO; Maximum Output Current: .15 A; Maximum Reverse Recovery Time: .004 us; Maximum Operating Temperature: 200 Cel; No. of Phases: 1;
BAV99
Siemens
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LM317T
Analog Devices
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; No. of Functions: 1; Package Body Material: PLASTIC/EPOXY; Surface Mount: NO;
LL4148
Silicon Standard
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148WS
Rugao Dachang Electronic
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: NO; Maximum Power Dissipation (Abs): .225 W; Maximum Drain-Source On Resistance: 7.5 ohm; Transistor Element Material: SILICON;
M39029/56-351
Carlisle Interconnect Technologies
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Type: CRIMP; Removal Tools: M81969/8-06, M81969/14-02; IEC Conformity: NO; Contact Gender: FEMALE;
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.
2N2222A
Secos
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .6 A; JEDEC-95 Code: TO-92;
E8WSDC12-32.768KTR
Ecliptek
PARALLEL - FUNDAMENTAL; Mounting Feature: SURFACE MOUNT; Frequency Tolerance: 20 ppm; Aging: 3 PPM/YEAR; Load Capacitance: 12.5 pF; Nominal Operating Frequency: .032768 MHz;
Bkc Semiconductors
SMBJ18CA
Goodwork Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BSS138LT1G
Onsemi
BSS138LT1G by Onsemi is a N-CHANNEL FET with 50V DS Breakdown Voltage, 0.2A Drain Current, and 3.5 ohm On Resistance. Ideal for SWITCHING applications due to its ENHANCEMENT MODE operation and built-in DIODE. Operates b/w -55 to 150 °C with small outline package style for surface mount assembly.
BSS138
Panjit International
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Drain-Source On Resistance: 3 ohm; Minimum DS Breakdown Voltage: 50 V; Terminal Form: GULL WING;
LM7805CT
Integrated Circuit Technology
Other Regulators; No. of Terminals: 3; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %; Terminal Position: SINGLE; Operating Temperature (TJ-Min): 0 Cel;
Infinex
LM358D-T
Philips Semiconductors
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
LM358M
National Semiconductor
Transpro Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb); Nominal Breakdown Voltage: 21.1 V; Maximum Clamping Voltage: 29.2 V;
Microchip Technology
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Minimum Operating Temperature: -65 Cel; Terminal Position: BOTTOM;
SKRTLBE010
Alps Alpine
Alps Alpine SKRTLBE010 is a SPST keypad switch with 100000 cycles electrical life. It has a max operating force of 1.6N and operates b/w -30 to 85°C. Ideal for applications requiring momentary-tactile switch action in compact electronic devices.
MCSLPT4644B1TR
TE Connectivity
TE Connectivity's MCSLPT4644B1TR is a SPST Keypad Switch with POLYETHYLENE housing and COPPER ALLOY terminals. With 1000000 cycles electrical life, it offers momentary-tactile switch action suitable for panel mount applications. Featuring SILVER plating, this switch has a max operating force of 0.98N and can handle 0.05A@12VDC DC max rating R load.
1825967-1
Tyco Electronics Alcoswitch
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): SQUARE TYPE; No. of Switches: 1; Switch Action: MOMENTARY;
MX1A-C1NN
The Cherry
The Cherry MX1A-C1NN keypad switch features SPST switch function, 4.2926mm actuator travel, and 0.5894N max operating force. Ideal for applications requiring OFF-(ON) contact function with 0.01A@12VAC AC max rating R load.
434331013822
Wuerth Elektronik & Kg
Wurth Elektronik 434331013822 is a white keypad switch with stainless steel housing. It has SPST switch function, 100000 cycle electrical life, and 0.2mm actuator travel. Ideal for applications requiring momentary-tactile action, such as surface mount-right angle mounting in electronic devices.
TL3315NF160Q
E-switch
TL3315NF160Q by E-switch is a SPST Keypad Switch with 500000 cycles Electrical Life, 0.2mm Actuator Travel, and -20 to 70°C Operating Temperature range. Ideal for applications requiring momentary-tactile switch action in surface mount installations.
SKHMQME010
Alps Alpine SKHMQME010 is a RED keypad switch with 200000 cycles electrical life. It has 2.35N max operating force, -30 to 85°C temp range, and 0.05A@12VDC DC rating. Ideal for applications requiring momentary-tactile switch action in surface mount-straight mounting setups.
EVQPC105K
Panasonic
The Panasonic EVQPC105K 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 15V. Ideal for applications requiring a momentary switch action and through-hole-right angle mounting.
EVPANDA1A
EVPANDA1A by Panasonic 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 Max Operating Force of 2.2N. Ideal for applications requiring momentary switch action in compact spaces.
TL1100F160Q
TL1100F160Q by E-switch is a momentary-tactile keypad switch with a 300000 cycle electrical life. It has a max operating force of 2.06 N and can handle a max DC contact current of 0.05 A. This switch is commonly used in applications such as keyboards, control panels, and industrial equipment.
KSC421G70SHLFS
C & K Components
KSC421G70SHLFS by C & K Components is a SPST keypad switch with SILVER terminal material and 300000 cycle electrical life. With IP67 sealing, it's ideal for applications requiring a soft type actuator, such as in environments with temperatures ranging from -40 to 85 °C.
KSC401G50SHLFS
Itt Cannon
KSC401G50SHLFS by ITT Cannon is a SPST keypad switch with 1VA@32VDC power rating, IP67 sealing, and 1000000000 ohm insulation resistance. Ideal for applications requiring a soft type actuator, it operates b/w -40 to 85 °C with 0.05A@32VDC max DC contact current.
3FSH9
Apem Components
The Apem Components 3FSH9 keypad switch features a POLYPHENYLENE SULPHIDE housing, IP67 sealing, and SPST switch function. With an electrical life of 10M cycles, it is ideal for applications requiring a momentary pushbutton switch with a max operating force of 3N. Suitable for surface mount-straight mounting, this switch has a solder termination type and operates in temperatures ranging from -40 to 115°C.
PTS810SJS250SMTRLFS
PTS810SJS250SMTRLFS 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 momentary-tactile switch action in temperatures ranging from -40 to 85°C.
SKHHBWA010
Alps Alpine SKHHBWA010 is a GRAY keypad switch with 500000 cycles electrical life. With 0.25mm actuator travel, it operates b/w -40 to 90 °C and has a max DC contact voltage of 12V. Ideal for applications requiring momentary-tactile switch action and through-hole-straight mounting.
5GTH9358222
5GTH9358222 by Apem Components is a SPST Keypad Switch with POLYPHENYLENE SULPHIDE housing. It features RED/GREEN LED illumination, IP67 sealing, and 10000000 cycle electrical life. Ideal for applications requiring a max operating force of 3.5N and DC contact voltage of 24V.
1825910-1
TE Connectivity 1825910-1 is a SPST Keypad Switch with BROWN actuator. Made of NYLON, it has an electrical life of 100000 cycles and operates b/w -35 to 85°C. Ideal for panel mounting applications, it features a max operating force of 0.98N and DC contact current of 0.05A at 24VDC.
B3S-1100P
Omron
Omron B3S-1100P keypad switch offers 500000 cycles electrical life, IP67 sealing, and 100000000 ohm insulation resistance. Ideal for applications requiring momentary-tactile switch action in environments with temperatures ranging from -25 to 70 °C.
PTS810SJK250SMTRLFS
PTS810SJK250SMTRLFS by C & K Components is a white keypad switch with SPST function. It has an electrical life of 50,000 cycles and insulation resistance of 100M ohm. Ideal for applications requiring momentary-tactile switch action in temperatures ranging from -40 to 85°C.
KMR631NGULCLFS
KMR631NGULCLFS by C & K Components is a SPST keypad switch with SILVER terminals, IP67 sealing, and 150000 cycles electrical life. Ideal for applications requiring momentary-tactile switch action in environments with temperatures ranging from -40 to 85 °C.
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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;
KST221GLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Actuator Travel (mm): 1.3;
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
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