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.
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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
$0.336
Lifecycle Status
Suppliers In-Stock
19
In-Stock Inventory
1k+
Mouser Electronics
1+ parts
$0.730
100+ parts
$0.543
1k+ parts
$0.449
10k+ parts
$0.376
DigiKey
$0.760
$0.542
$0.418
TTI Europe
-
Future Electronics
$0.315
Chip1Stop
$0.274
NEP Electronics
PEI Genesis
Master Electronics
$0.323
Farnell
$0.361
Verical
Arrow
TME
$0.520
$0.395
$0.326
$0.263
Ozdisan Elektronik
$0.722
IBS Electronics
$0.477
Pegasus Components GmbH
NAC Semi
$0.630
ComSIT Distribution GmbH
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:
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:
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.
1N4148WS-7-F
Diodes Incorporated
1N4148WS-7-F by Diodes Inc. is a single rectifier diode with max reverse recovery time of 0.004 us and max reverse current of 1 uA. It operates b/w -65 to 150 °C, ideal for applications requiring small outline surface mount diodes with a max output current of 0.15 A.
M24308/2-1F
Defense Logistics Agency
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Mounting Type: CABLE AND PANEL; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Empty Shell: NO;
M39029/58-360
Carlisle Interconnect Technologies
GENERAL CONN ACCESSORY; Associated Military - Specifications: MIL-C-55302/69, MIL-C-38999; Maximum Operating Temperature: 200 Cel; MIL-Connector Accessory: CONTACT; Terminal Type: CRIMP; MIL Conformity: YES;
EU2B-YS3203C
Idec
ROTARY SWITCH;
LM358MX
Texas Instruments
LM358MX by Texas Instruments is a dual operational amplifier with a max input offset voltage of 9000 uV. It has a nominal voltage of 5V and a min voltage gain of 15000. This op amp is commonly used in applications requiring amplification and signal conditioning.
2N7002
Rectron
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Operating Mode: ENHANCEMENT MODE; Maximum Operating Temperature: 150 Cel; Terminal Form: GULL WING;
CGA3E2X7R1H104K080AA
TDK
CGA3E2X7R1H104K080AA by TDK is a fixed ceramic capacitor with a capacitance of 0.1 uF and a rated DC voltage of 50 V. It has a temperature coefficient of 15% and can operate at temperatures ranging from -55 to 125 °C. This capacitor is commonly used in surface mount applications for various electronic devices.
C0603X104K5RACAUTO
KEMET Corporation
C0603X104K5RACAUTO by KEMET Corp is a ceramic capacitor with capacitance of 0.1 uF and rated DC voltage of 50 V. It has a temperature coefficient of 15% and can operate b/w -55 to 125 °C. This SMT package is commonly used in automotive applications due to its AEC-Q200 reference standard.
2N2222A
M/a-com Technology Solutions
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Terminal Position: BOTTOM; Package Style (Meter): CYLINDRICAL;
CRCW06031K00FKEAHP
Vishay Intertechnology
Vishay Intertechnology's CRCW06031K00FKEAHP is a fixed resistor with 1000 ohm resistance, 1% tolerance, and 0.33 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 standard compliance and operating voltage of 75 V.
RC0402JR-070RL
Yageo
Yageo's RC0402JR-070RL is a SMT fixed resistor with 0 ohm resistance, rated for temperatures from -55 to 155 °C. It features METAL GLAZE/THICK FILM tech, WRAPAROUND terminals, and 0.0625 W power dissipation. Ideal for jumper applications in electronics requiring compact surface mount components.
DS18B20Z+T&R
Maxim Integrated
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 8; Package Shape or Style: RECTANGULAR; Minimum Operating Temperature: -55 Cel; Package Body Material: PLASTIC/EPOXY;
Central Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Maximum Drain Current (ID): .115 A; Maximum Drain Current (Abs) (ID): .115 A;
SMBJ18CA
Changzhou Starsea Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Nte Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Souriau
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Body or Shell Style: RECEPTACLE; MIL Conformity: YES;
SS14
Bytesonic Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
ABS06-32.768KHZ-T
Abracon
Abracon's ABS06-32.768KHZ-T crystal oscillator offers 20 ppm frequency tolerance, 90000 ohm series resistance, and -40 to 85 °C operating temperature range. Ideal for applications requiring precise timing in compact designs like IoT devices and wearables.
EU2B-YS3203F
LL4148
Rugao Dachang Electronic
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
KSC353JLFG
C & K Components
KSC353JLFG by C & K Components is a SPST keypad switch with 100000 cycle electrical life, IP67 sealing, and 0.2VA@32VDC DC max power rating. Ideal for applications requiring a hard type actuator, such as industrial control panels or medical devices due to its gold/nickel terminal finish and -40 to 125 °C operating temperature range.
SKRMABE010
Alps Alpine
Alps Alpine SKRMABE010 is a SPST keypad switch with 100000 cycles electrical life. Featuring 4.5mm body width and 0.2032mm actuator travel, it operates b/w -30°C to 85°C. Ideal for applications requiring momentary-tactile switch action in surface mount configurations.
DTSM-63N-V-T/R
Apem Components
DTSM-63N-V-T/R by Apem Components is a brown keypad switch with a single SPST switch. It has an electrical life of 200,000 cycles and can operate in temperatures ranging from -25 to 70°C. This surface mount straight switch is commonly used in various applications requiring momentary tactile action.
FSMIJ61AG04
TE Connectivity
TE Connectivity's FSMIJ61AG04 is a SPST Keypad Switch with GREEN/YELLOW LED illumination. It has an electrical life of 500,000 cycles and operates b/w -25 to 70°C. Ideal for panel mounting applications requiring a momentary-tactile switch function.
FSM6JSMA
TE Connectivity's FSM6JSMA is a black keypad switch with polyamide housing. It offers SPST switch function, 100000 electrical life cycles, and 1.568N max operating force. Ideal for panel mounting applications in various industries due to its momentary-tactile switch action and copper alloy end contact material.
DTSM-61Y-V-T/R
DTSM-61Y-V-T/R by Apem Components is a yellow keypad switch with a 50000 cycle electrical life. It has a body width of 6.1976 inch and can operate in temperatures ranging from -25 to 70 °C. This surface mount straight switch is ideal for applications requiring a pushbutton type actuator and max DC contact voltage of 12V.
430481031816
Wuerth Elektronik & Kg
430481031816 by Wurth Elektronik is a black keypad switch with stainless steel housing. It features SPST switch function, 1000000 cycle electrical life, and 100000000 ohm insulation resistance. Ideal for applications requiring momentary switch action and surface mount-straight mounting feature.
Alps Electric
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SHARP STEM; Solderability: REFLOW; Body Height: .4 mm;
TL1014AF160QG
E-switch
TL1014AF160QG by E-switch is a SPST keypad switch with 200000 cycles electrical life. It has a 0.25mm actuator travel and operates b/w -40 to 85°C. Ideal for applications requiring momentary-tactile switch action, such as surface mount-right angle mounting configurations.
1.14.002.011/0000
Rafi & Kg
1.14.002.011/0000 by Rafi & Kg is a SPST keypad switch with 250,000 cycles electrical life and 5.1" body width. It operates b/w -40 to 85°C, has a max DC contact voltage of 42V, and uses solder termination for surface mount applications.
435171014816
435171014816 by Wurth Elektronik is a black keypad switch with stainless steel housing. It has a max operating temperature of 85°C and electrical life of 500,000 cycles. Ideal for applications requiring a momentary-tactile switch with surface mount-straight mounting feature.
KMS223GPLFG
KMS223GPLFG by C & K Components is a SPST keypad switch with 100000 cycle electrical life and 0.2VA@32VDC DC max power rating. It has a sealing of IP40, suitable for surface mount-right angle applications in various electronic devices due to its momentary-tactile switch action and gold contact materials.
KMR641NGULCLFS
KMR641NGULCLFS by C & K Components is a SPST keypad switch with SILVER terminals, IP67 sealing, and 100000 cycle electrical life. Ideal for applications requiring a momentary-tactile switch with 0.3mm actuator travel, such as in environments with temperatures ranging from -40 to 85 °C.
1241.1612.23
Schurter Ag
Schurter Ag's 1241.1612.23 keypad switch features SPST switch function, BRASS terminals, and GOLD OVER NICKEL plating. With a sealing rating of IP40, it is ideal for applications requiring momentary-tactile switch action in environments with temperatures ranging from -40 to 85 °C.
TL3315NF100Q
TL3315NF100Q by E-switch is a SPST Keypad Switch with 1M cycles Electrical Life, 50M ohm Insulation Resistance, and 0.2mm Actuator Travel. Ideal for applications requiring momentary-tactile switch action in environments ranging from -20 to 70°C.
SKHHBVA010
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): STEM; Body Length/Diameter: 6 mm; Circuit Config: 1X1;
KSS341GLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): LARGE TYPE; Solderability: REFLOW; Terminal Finish: SILVER;
PTS647SM50SMTR2LFS
PTS647SM50SMTR2LFS by C & K Components is a SPST Keypad Switch with 100000 cycle Electrical Life and 100000000 ohm Insulation Resistance. It has a Body Width of 4.5 inch, suitable for applications requiring a MOMENTARY-TACTILE switch function in temperatures ranging from -20 to 70 °C.
TSSE67R-J
Knitter-switch
TSSE67R-J by Knitter-switch is a red keypad switch with stainless steel housing and brass terminals. It has an electrical life of 500,000 cycles, IP67 sealing, and operates b/w -40°C to 85°C. Ideal for applications requiring a momentary-tactile switch with a max DC contact voltage of 32V and current of 0.05A.
SKRELGE010
SKRELGE010 by Alps Electric is a keypad switch with 1 switch and a body width of 2.9 inch. It has an electrical life of 100000 cycles and insulation resistance of 100000000 ohm. This switch is suitable for applications requiring momentary-tactile action, such as surface mount-right angle mounting in various electronic devices.
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