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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KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Contact Function: ON-(OFF); Solderability: MIL-STD; Dielectric Withstand Volts (V): 1000VRMS;
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Keypad Switches KS12R21CQE attributes and parameters. Explore more Keypad Switches devices from C & K Components
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KS12R21CQE 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
Laube Technology
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
BSS138BKW,115
Nexperia
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Terminal Finish: TIN; No. of Terminals: 3; Additional Features: LOGIC LEVEL COMPATIBLE;
TCA6424ARGJR
Texas Instruments
TCA6424ARGJR by Texas Instruments is a CMOS parallel I/O port with 24 bits and 3 ports. It operates b/w -40 to 85°C, suitable for industrial applications. With a max clock frequency of 0.4 MHz, it offers low power consumption at only 0.03 mA supply current.
Compensated Devices
RECTIFIER DIODE; Terminal Position: UPPER; Terminal Form: NO LEAD; No. of Terminals: 1; Surface Mount: YES; Package Shape: SQUARE;
SN65HVD234DR
SN65HVD234DR by Texas Instruments is an 8-terminal interface circuit with a data rate of 1 Mbps. Operating temperature ranges from -40 to 125 °C, making it ideal for automotive applications. With a supply voltage of 3.3 V and low current draw of 6 mA, it's suitable for network interfaces in compact designs.
NE555DR
NE555DR by Texas Instruments is an Analog Waveform Generation IC with 8 terminals, operating voltage of 5V, and power supplies ranging from 5-15V. It is a versatile component for pulse generation applications due to its small outline package and commercial temperature grade suitability.
2N7002
Transys Electronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Minimum DS Breakdown Voltage: 60 V; Maximum Operating Temperature: 150 Cel;
08055C104KAT2A
KYOCERA AVX
08055C104KAT2A by KYOCERA AVX is a ceramic capacitor with 0.1uF capacitance and 50V rated DC voltage. It has X7R temperature characteristics, -55 to 125 °C operating range, and ±10% tolerance. Ideal for SMT applications requiring compact size and reliable performance in various electronic circuits.
Daco Semiconductor
LM358N
Silicon Group
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
BAV99
Diodes Incorporated
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
261
Micronetics
Other Interface ICs; Temperature Grade: MILITARY; Terminal Form: FLAT; No. of Terminals: 14; Package Code: DFP; Package Shape: SQUARE;
MBRS340T3G
Onsemi
MBRS340T3G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.5V and output current of 4A. It operates b/w -65°C to 150°C, making it suitable for various applications requiring high-speed switching and low power loss in a small outline package. The diode's matte tin terminal finish and dual position make it ideal for surface mount PCB designs.
SS14
Surge Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Vishay Intertechnology
Vishay Intertechnology's SS14 is a Schottky rectifier diode with a max forward voltage of 0.5V and output current of 1A. Operating at up to 125°C, it has a repetitive peak reverse voltage of 40V. Ideal for surface mount applications, it suits various electronic circuits requiring efficient rectification and low forward voltage drop.
LM358MX
ROHM
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: LSOP; Package Shape: RECTANGULAR;
2N2222A
Minilogic Device
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .001 A;
LP2950CDT-3.3G
LP2950CDT-3.3G by Onsemi is a fixed positive single output LDO regulator with a nominal output voltage of 3.3V and max output current of 0.1A. It has a small outline package style, operates at temperatures ranging from -40 to 125 °C, and is suitable for applications requiring low dropout voltage and precise voltage regulation in electronic circuits.
SMBJ18CA
Multicomp Pro
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Diode Element Material: SILICON; Technology: AVALANCHE; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V;
ULN2803ADWRG4
ULN2803ADWRG4 by Texas Instruments is a peripheral driver with 8 functions, open-collector output, and built-in transient protection. It operates b/w -40 to 85 °C with a max supply voltage of 3 V. Ideal for applications requiring sink current flow direction in a small outline package style.
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.
DTS-65N-V
Apem Components
The Apem Components DTS-65N-V is a SPST keypad switch with 200000 cycles electrical life, 6.35mm actuator travel, and 2.06N max operating force. Ideal for applications requiring momentary-tactile switch action, such as control panels or industrial equipment.
B32-1600
Omron B32-1600 Keypad Switch features SPST switch function, 70°C max operating temp, -25°C min operating temp. Ideal for through-hole mounting applications requiring momentary-tactile switch action.
SKHMQKE010
Alps Alpine
Alps Alpine SKHMQKE010 is a black keypad switch with SPST function. It offers 500000 cycles electrical life, 100M ohm insulation resistance, and 0.98N max operating force. Ideal for applications requiring momentary-tactile switch action in temperatures ranging from -30 to 85°C.
EVPAA602W
Panasonic
EVPAA602W by Panasonic is a white keypad switch with SPST function. It has an electrical life of 200,000 cycles and insulation resistance of 100M ohm. Ideal for applications requiring momentary ON-OFF contact functions, with a max operating force of 3.5N and DC contact current of 0.02A@15VDC.
1571527-2
TE Connectivity
TE Connectivity's 1571527-2 Keypad Switch features SPST switch function, 200000 electrical life cycles, and 0.98N max operating force. Ideal for panel mounting applications with a max DC contact voltage of 24V and -35 to 85°C operating temperature range.
MHPS4284N
MHPS4284N by Apem Components is a 4PDT keypad switch with 10000 cycles electrical life. Featuring brass terminals and silver finish, it operates b/w -20 to 65 °C. Ideal for applications requiring momentary switch action and through-hole mounting, with max DC contact voltage of 30V.
3ESH9-08.0
The Apem Components 3ESH9-08.0 keypad switch has an electrical life of 10M cycles, IP67 sealing, and operates b/w -40°C to 160°C. Ideal for surface mount applications with a max DC contact voltage of 24V, it is commonly used in industrial control panels.
TL1105BF160Q
E-switch
TL1105BF160Q by E-switch is a SPST keypad switch with 100000 cycle electrical life. Featuring silver-plated brass terminals, it has an actuator travel of 0.25mm and operates b/w -20 to 70°C. Ideal for applications requiring momentary-tactile switch action and through-hole mounting.
MX1A-21NW
Zf Friedrichshafen Ag
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): KEYLOCK; Contact Function: OFF-(ON); Solderability: WAVE;
B3F-3120
The Omron B3F-3120 is a black keypad switch with a flat 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.
KST221GLFS
C & K Components
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SOFT TYPE; Solderability: REFLOW; Actuator Travel (mm): 1.3;
KMT021NGJLHS
KMT021NGJLHS by C & K Components is a SPST keypad switch with IP68 sealing, ideal for applications requiring high durability. With 300000 cycles electrical life and 0.5VA@32VDC DC max power rating, it ensures reliable performance in harsh environments. Featuring SILVER terminal finish and 50000000 ohm insulation resistance, this switch offers long-lasting functionality in temperatures ranging from -40 to 85 °C.
B3W-9000-G1N
Omron B3W-9000-G1N keypad switch has a 1000000 cycle electrical life, GREEN LED illumination, and 100000000 ohm insulation resistance. Ideal for applications requiring a SPST switch function with plunger actuator type. Operating temperatures range from -25 to 70 °C.
KMR421NGLFS
KMR421NGLFS by C & K Components is a SPST keypad switch with 100000 cycle electrical life and 1VA@32VDC DC max power rating. Ideal for applications requiring a momentary-tactile switch type, it features IP40 sealing, 2.8" body width, and operates in temperatures ranging from -40 to 85 °C.
5GTH935+1SS09-15.0
5GTH935+1SS09-15.0 by Apem Components is a keypad switch with PPS housing, IP67 sealing, and SPST switch function. It has an electrical life of 10M cycles and insulation resistance of 10M ohm, making it ideal for industrial applications requiring durability and reliability in harsh environments. With a max operating temperature of 160°C and min of -40°C, this switch is suitable for a wide range of operating conditions.
EVQPE105K
The Panasonic EVQPE105K keypad switch offers 50000 cycles electrical life, 100000000 ohm insulation resistance, and 1.5 N max operating force. Ideal for applications requiring a SPST pushbutton switch with OFF-ON contact function and momentary switch action.
87FC3-201
Grayhill
Grayhill's 87FC3-201 Keypad Switch features 4 SPST switches with GOLD plating, ACRYLONITRILE BUTADIENE STYRENE actuator, and COPPER ALLOY terminals. With a 3000000 cycle electrical life, it is ideal for keyboard applications requiring OFF-(ON) contact function at -40 to 80 °C operating temperatures. The switch has a 0.2794mm actuator travel and withstands up to 250VAC dielectric volts.
PTS645SH43SMTR92LFS
PTS645SH43SMTR92LFS by C & K Components is a SPST keypad switch with 100000 cycles electrical life. It features 100000000000 ohm insulation resistance and operates b/w -20 to 60 °C. Ideal for applications requiring a momentary-tactile switch with surface mount-straight mounting feature.
KSC641JLFS
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): HARD TYPE; Solderability: REFLOW; DC Maximum Power Rating R Load (Contact): 1VA@32VDC;
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