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; Solderability: REFLOW; JESD-609 Code: e4; Minimum Operating Temperature: -40 Cel;
Median Price
$0.320
Lifecycle Status
Suppliers In-Stock
18
In-Stock Inventory
1k+
Mouser Electronics
1+ parts
$0.680
100+ parts
$0.485
1k+ parts
$0.396
10k+ parts
$0.346
DigiKey
$0.700
$0.497
$0.411
$0.359
TTI Europe
-
Verical
$0.309
Arrow
Future Electronics
$0.295
Chip1Stop
$0.274
NEP Electronics
Newark
$0.505
Master Electronics
$0.332
PEI Genesis
TME
$0.530
$0.401
$0.330
$0.267
Ozdisan Elektronik
$0.722
Pegasus Components GmbH
NAC Semi
$0.650
IBS Electronics
$0.283
Prism Electronics
Bristol Electronics
Perfect Parts
Kepictronics
Assy Fe
GreenTree Electronics
Metaverse IC Inc.
Authorized Procurement Solutions
XScomponents
Keypad Switches KMR421GLFS attributes and parameters. Explore more Keypad Switches devices from C & K Components
Length (Actuator):
Actuator Travel (mm):
Body Width:
Body Height:
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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:
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KMR421GLFS 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.
INA826AIDGKR
Texas Instruments
INA826AIDGKR by Texas Instruments is an instrumentation amplifier with 150uV max input offset voltage, 0.095uA max average bias current, and 1MHz nominal bandwidth. Ideal for automotive applications due to its -40 to 125 °C operating temperature range and high common mode rejection ratio of 120dB.
LFXTAL025159REEL
Iqd Frequency Products
LFXTAL025159REEL by IQD Frequency Products is a 32.768 kHz crystal oscillator with 20 ppm frequency tolerance and 40,000 ohm series resistance. It is ideal for applications requiring precise timekeeping, such as real-time clocks in IoT devices or microcontrollers in wearables. The surface-mount design with a drive level of 1 uW makes it suitable for compact electronic systems.
FDN5618P
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .5 W; Transistor Element Material: SILICON; Moisture Sensitivity Level (MSL): 1;
BAV99
Taitron Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WS
Bytesonic Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
U.FL-R-SMT-1(10)
Hirose Electric
U.FL-R-SMT-1(10) by Hirose Electric is a RF connector with 50 ohm impedance, 0.05 dB insertion loss, and 8 GHz operating frequency. Ideal for board mounting in commercial applications, it features gold termination finish, liquid crystal polymer insulator, and 200VAC dielectric voltage resistance.
1N4148
Sangdest Microelectronics (Nanjing)
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Promax-johnton
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Weitron Technology
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
ULN-2803A
Sprague Electric
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Temperature Grade: OTHER; Terminal Form: THROUGH-HOLE; No. of Terminals: 18; Package Code: DIP; Package Shape: RECTANGULAR;
FDC5614P
TAIZHOU ELECTRONICS CO LTD
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.92 W; Maximum Operating Temperature: 150 Cel; Package Body Material: PLASTIC/EPOXY;
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.
Meritek Electronics
STM32H753BIT6
STMicroelectronics
STM32H753BIT6 by STMicroelectronics is a 32-bit microcontroller with 208 terminals, operating at up to 48 MHz. It features 20-Ch 16-Bit ADCs, 2-Ch 12-Bit DACs, and extensive peripherals for industrial applications like CAN, Ethernet, and USB connectivity. With a wide temperature range of -40 to +85 °C, it's ideal for demanding environments requiring high-speed processing capabilities.
2N7002
Unisonic Technologies
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Package Body Material: PLASTIC/EPOXY; Package Shape: RECTANGULAR;
2N2222A
Microsemi
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Minimum DC Current Gain (hFE): 30; No. of Elements: 1;
M39029/58-360
Itt Cannon
CONNECTOR ACCESSORY; Alternate Contacts: 030-2042-000; DIN Conformity: NO; Contact Gender: MALE; Terminal Type: WIRE; MIL-Connector Accessory Name: CONTACT;
STM32H753ZIT6
STM32H753ZIT6 by STMicroelectronics is a 32-bit microcontroller with Cortex-M7 CPU, offering 20-Ch 16-Bit ADC and 2-Ch 12-Bit DAC channels. With a clock frequency of up to 48 MHz, it is ideal for industrial applications requiring CAN, Ethernet, and USB connectivity. This microcontroller operates b/w -40°C to +85°C temperature range.
Nte Electronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Transistor Application: SWITCHING; Maximum Drain Current (ID): .115 A; No. of Terminals: 3;
2203567
Phoenix Contact
MEMBRANE KEYBOARD;
1241.1106.7098
Schurter Ag
Schurter Ag's 1241.1106.7098 Keypad Switch features SPST switch function, IP65 sealing, and 1000000 cycle electrical life. Ideal for panel mount applications with a max operating temperature of 60°C and -25°C min temperature.
KSEM31GLFS
C & K Components
KSEM31GLFS by C & K Components is a SPST keypad switch with 300000 cycles electrical life and 1VA@32VDC DC max power rating. With IP67 sealing, it's ideal for applications requiring a reliable, sealed keypad switch in harsh environments.
SKRPABE010
Alps Alpine
Alps Alpine SKRPABE010 is a SPST keypad switch with 100000 cycles electrical life. It has 1.57N max operating force and operates b/w -30°C to 85°C. Ideal for applications requiring momentary-tactile switch action, such as consumer electronics and industrial control systems.
ADTSM31NV
Apem Components
ADTSM31NV by Apem Components is a SPST keypad switch with 50,000 cycles electrical life. Featuring stainless steel housing and brass terminals, it has an actuator travel of 0.254mm. Ideal for applications requiring momentary-tactile switch action in temperatures ranging from -25°C to 70°C.
TL3301NF160QG4000REEL
E-switch
TL3301NF160QG4000REEL by E-switch is a GRAY Keypad Switch with 100000 Cycle Electrical Life. It has an Insulation Resistance of 100M ohm and operates b/w -20 to 70 °C. Ideal for applications requiring a SPST switch function, such as control panels or industrial equipment.
431181015816
Wuerth Elektronik & Kg
Wurth Elektronik 431181015816 is a black keypad switch with stainless steel housing. It has SPST switch function, stem actuator type, and 1000000 cycle electrical life. Ideal for ON-OFF applications in electronics, it offers 2.06N max operating force and -40 to 85°C temp range.
87BB3-201
Grayhill
Grayhill's 87BB3-201 keypad switch features 16 SPST switches with gold plating, offering a long electrical life of 3000000 cycles. With a max DC contact voltage of 24V and operating temperatures ranging from -40 to 80 °C, it is ideal for keyboard applications requiring reliable performance in various environments.
KXT211LHS
KEYPAD SWITCH;
ILSTB25060
TL3340AF160QG
TL3340AF160QG by E-switch is a SPST keypad switch with a 100000 cycle electrical life. It has a max operating temperature of 85°C and a min operating temperature of -35°C. This switch is commonly used in applications requiring momentary-tactile action, such as surface mount-right angle mounting configurations.
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.
KSL0M412LFT
KSL0M412LFT by C & K Components is a SPST keypad switch with IP65 sealing, suitable for applications requiring durability. It has an electrical life of 100000 cycles and a max DC contact voltage of 32V, making it ideal for use in harsh environments. With a compact body width of 6.2mm and solder termination, this switch offers reliable performance in various electronic devices.
MSLPT5252CL1BTR
TE Connectivity
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.
3FSH9
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.
B3F-4055
Omron
The Omron B3F-4055 is a yellow keypad switch with a projected plunger type actuator. It has an electrical life of 1,000,000 cycles and insulation resistance of 100,000,000 ohms. This switch is commonly used in applications requiring momentary-tactile action and can withstand temperatures from -25°C to 70°C.
SKTDLDE010
Alps Alpine SKTDLDE010 is a SPST keypad switch with 200000 cycles electrical life. Featuring IP67 sealing, it has 1.6N max operating force and -30 to 85°C temp range. Ideal for applications requiring momentary-tactile switch action in harsh environments.
SKRBAAE010
Alps Alpine SKRBAAE010 is a SPST keypad switch with 1000000 cycles electrical life. It has 1.57N max operating force, -30 to 85°C temp range, and 100VAC dielectric withstand volts. Ideal for surface mount applications requiring momentary-tactile switch action.
KSR251GLFS
KSR251GLFS by ITT Cannon is a keypad switch with a body width of 3.8 inch and sealing rating of IP50. It has an electrical life of 100000 cycles and is commonly used in applications requiring momentary switch action, such as surface mount straight mounting feature.
3-1825910-3
TE Connectivity 3-1825910-3 is a YELLOW keypad switch with NYLON housing. It has an electrical life of 50k cycles, SPST switch function, and operates b/w -35 to 85°C. Ideal for panel mounting applications requiring momentary switch action with 0.05A@24VDC DC max rating.
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Supply Digital Components
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