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
$0.898
Lifecycle Status
Suppliers In-Stock
20
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1k+
Newark
1+ parts
$0.603
100+ parts
1k+ parts
10k+ parts
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Arrow
$0.763
$0.735
Chip1Stop
$0.919
$0.580
Farnell
$0.936
$0.661
$0.547
Mouser Electronics
$1.170
$0.890
$0.621
DigiKey
$1.460
$1.026
$0.852
$0.729
Element14
$1.510
$1.190
Master Electronics
$0.618
$0.579
Verical
$0.780
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
$0.591
Perfect Parts
Assy Fe
Authorized Procurement Solutions
Kepictronics
Keypad Switches KST221JLFS attributes and parameters. Explore more Keypad Switches devices from C & K Components
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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.
BAV99
Kec
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
BSS138W-7-F
Diodes Incorporated
Diodes Inc.'s BSS138W-7-F is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, Gull Wing terminals, and operates in enhancement mode. With 0.2A max drain current and 3.5 ohm RDS(on), it's UL recognized and suitable for small outline packages at temperatures ranging from -55 to 150°C.
ULN2803A
Onsemi
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Package Body Material: PLASTIC/EPOXY; Qualification: Not Qualified;
SMBJ18CA
Forward International Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Nominal Breakdown Voltage: 21.05 V; Maximum Clamping Voltage: 29.2 V; Maximum Repetitive Peak Reverse Voltage: 18 V; Polarity: BIDIRECTIONAL;
AT90CAN128-16AUR
Microchip Technology
AT90CAN128-16AUR by Microchip: 16 MHz clock, 8-bit data RAM, and 131072 ROM words. Ideal for industrial applications with CAN, SPI, TWI connectivity and low power mode. Contains 4 timers, 8 ADC channels, and supports up to 10-bit analog to digital conversion.
FDD5614P
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 42 W; Terminal Position: SINGLE; Terminal Form: GULL WING;
Thinking Electronic Industrial
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM107H/883
Texas Instruments
LM107H/883 by Texas Instruments is a MIL-STD-883 compliant operational amplifier with 3000uV max input offset voltage, 80dB common mode reject ratio, and 250kHz unity gain bandwidth. Ideal for military applications due to its -55 to 125 °C operating temperature range and robust metal package body material.
LL4148
Weitron Technology
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
Frontier Electronics
Concord Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V; Polarity: BIDIRECTIONAL; Maximum Clamping Voltage: 29.2 V;
Bourns
LM358AN
Samsung
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
M39029/58-360
Positronic Industries
CONNECTOR ACCESSORY; MIL-Connector Accessory Name: CONTACT; DIN Conformity: NO; National Stock Number (NSN): 5999004733551; Mating Contacts: M39029/56-348, M39029/57-354; Contact Type: CRIMP REAR RELEASE;
NE555D
NXP Semiconductors
SQUARE; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: LSOP; Package Shape: RECTANGULAR; Surface Mount: YES;
1N4148
Hy Electronic
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
LM555CMX
National Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
2N7002
Plessey Semiconductors Discrete Components Div
Other Transistors;
EU2B-YS2J03C
Idec
ROTARY SWITCH;
Dc Components
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; No. of Elements: 1; Terminal Form: GULL WING;
B3F-3122
Omron
Omron B3F-3122 Keypad Switch offers SPST switch function with 300000 cycles electrical life. Featuring 7.4mm body height, it has a max operating force of 1.96N and operates at temperatures ranging from -25 to 70°C. Ideal for applications requiring momentary-tactile switch action in various industries.
JJJHLUG200NOPMRTR
TE Connectivity
TE Connectivity's JJJHLUG200NOPMRTR is a BROWN SPST Keypad Switch with 0.05A AC/DC contact current. Featuring STAINLESS STEEL end contacts and SILVER plating, it is ideal for PANEL MOUNT applications requiring OFF-(ON) functionality.
DTSM-65N-V-T/R
Diptronics Manufacturing
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): DOMED TYPE; Maximum DC Contact Current: .05 A; DC Maximum Rating R Load (Contact): .05A@12VDC;
D6R40F1LFS
Itt Cannon
D6R40F1LFS by ITT Cannon is a red keypad switch with SPST function. It has an electrical life of 250,000 cycles and a max DC contact voltage of 32V, making it suitable for applications requiring momentary-tactile switch action. With a compact body height of 5.8mm and actuator travel of 2mm, it is ideal for use in devices where space is limited.
KSC421J70SHLFS
KSC421J70SHLFS by ITT Cannon is a SPST keypad switch with IP67 sealing, suitable for surface mount applications. It has an electrical life of 1M cycles, operates at temperatures from -40 to 85 °C, and features a soft type actuator with 0.508mm travel. Ideal for industrial control panels and outdoor equipment due to its high insulation resistance and silver contact plating.
KSS333GLFG
C & K Components
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): LARGE TYPE; Solderability: REFLOW; Maximum DC Contact Current: .01 A;
1571563-4
TE Connectivity 1571563-4 Keypad Switch features SPST switch function, 100000 cycles electrical life, and 2.548N max operating force. Ideal for panel mount applications with -35 to 85°C temp range and 0.05A@24VDC DC rating.
2-1437565-7
Tyco Electronics Amp
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum DC Contact Current: .05 A; Termination Type: SOLDER; Circuit Config: 1X1;
B3F-1020
Omron B3F-1020 Keypad Switch offers SPST switch function with 1000000 cycles electrical life. With 1.27N max operating force, it's ideal for OFF-(ON) contact function in applications requiring momentary-tactile switch action. Featuring gold terminal finish and 500VAC dielectric withstand volts, it ensures reliable performance in various electronic devices.
SKRKAHE020
Alps Alpine
Alps Alpine SKRKAHE020 is a SPST keypad switch with 200000 cycles electrical life. Featuring STEM actuator, it has 0.05A@12VDC DC max rating and 0.98N max operating force. Ideal for applications requiring momentary-tactile switch action in temperatures ranging from -30°C to 85°C.
4-1437565-2
TE Connectivity 4-1437565-2 is a SPST Keypad Switch with POLYAMIDE housing. It offers 100000 cycles electrical life, 0.05A@24VDC DC max rating, and 1.568N max operating force. Ideal for panel mount applications requiring momentary-tactile switch action in black color with copper alloy contacts.
3ETH9-10.4
Apem Components
The Apem Components 3ETH9-10.4 keypad switch has an electrical life of 10M cycles, IP67 sealing, and operates b/w -40°C to 160°C. Ideal for applications requiring a momentary switch action, with a max DC contact voltage of 24V and current rating of 0.05A@24VDC.
1571220-1
TE Connectivity 1571220-1 is a black keypad switch with polyethylene housing, IP67 sealing, and SPST switch function. It has an electrical life of 1M cycles and operates b/w -35 to 85°C. Ideal for panel mounting applications requiring a momentary-tactile switch with 24VDC max rating.
EVQPF304R
Panasonic
The Panasonic EVQPF304R is a SPST keypad switch with 50000 cycles electrical life. It operates b/w -20 to 70°C, with max force of 3.2N and contact voltage of 15VDC. Ideal for applications requiring momentary switch action in through-hole mounting setups.
EVQP2402W
The Panasonic EVQP2402W is a keypad switch with SPST function, 2.5mm actuator travel, and 500000 electrical life cycles. It operates b/w -40 to 85°C, has gold/silver terminal finish, and withstands up to 15V DC contact voltage. Ideal for applications requiring ON-OFF control in compact devices.
1825027-8
TE Connectivity 1825027-8 is a BLUE BUTTON TYPE KEYPAD SWITCH with NYLON housing and COPPER ALLOY terminals. It has an electrical life of 100000 cycles, insulation resistance of 100M ohm, and operates b/w -20 to 105 °C. Ideal for PANEL MOUNT applications requiring MOMENTARY-TACTILE OFF-(ON) contact function.
JF15CP2G
Nkk Switches
JF15CP2G by Nkk Switches is a blue keypad switch with glass-filled polyamide housing. It has an electrical life of 500K cycles and insulation resistance of 500M ohm, making it ideal for applications requiring a momentary-tactile switch action. With a max operating force of 3N and DC contact voltage of 24V, this switch is suitable for various electronic devices.
SKHHNHA010
Alps Electric
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): STEM; Contact Function: ON-OFF; Solderability: HAND;
PTS526SK15SMTR2LFS
KEYPAD SWITCH;
5ETH920NCNO
Mec A/s
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Contact Function: N.C-N.O; No. of Switches: 1; Body Height: 6.4 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;
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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