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: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Contact Function: ON-(OFF); Solderability: MIL-STD; JESD-609 Code: e4;
Median Price
$3.340
Lifecycle Status
Suppliers In-Stock
10
In-Stock Inventory
1k+
DigiKey
1+ parts
$3.910
100+ parts
$2.916
1k+ parts
$2.514
10k+ parts
-
Mouser Electronics
$2.910
$2.510
Master Electronics
$2.260
Chip1Stop
Newark
$3.200
$2.760
Verical
$2.060
IBS Electronics
$4.472
$2.938
Electro Sonic
$3.170
$2.540
$2.500
EMSNET
Prism Electronics
Perfect Parts
Keypad Switches KS12R21CQD attributes and parameters. Explore more Keypad Switches devices from C & K Components
Color (Actuator):
Finish (Actuator):
Material (Actuator):
Actuator Travel (mm):
Additional Features:
Body Width:
Body Height:
Body Length/Diameter:
Center Contact Material:
Center Contact Plating:
Circuit Config:
AC Maximum Rating R Load (Contact):
Maximum AC Contact Current:
Maximum DC Contact Current:
DC Maximum Rating R Load (Contact):
Contact Function:
Contact Resistance:
Maximum AC Contact Voltage:
Maximum DC Contact Voltage:
Dielectric Withstand Volts (V):
Electrical Life:
End Contact Material:
End Contact Plating:
Housing Material:
Insulation Resistance:
Insulator Material:
JESD-609 Code:
Mounting Feature:
No. of Switches:
Maximum Operating Temperature:
Minimum Operating Temperature:
PCB Hole Count:
Solderability:
Switch Action:
Switch Function:
Switch Type:
Terminal Finish:
Terminal Length:
Termination Type:
KS12R21CQD 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.
MMBF170LT1G
Rochester Electronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .225 W; Package Style (Meter): SMALL OUTLINE; No. of Terminals: 3;
2N2222A
Philips Semiconductors
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
SMBJ18CA
Good-ark Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V; Maximum Time At Peak Reflow Temperature (s): 10; JESD-609 Code: e3;
2N7002
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;
Lite-on Semiconductor
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Qualification: Not Qualified; Additional Features: LOW THRESHOLD; Minimum DS Breakdown Voltage: 60 V;
BSS84-7-F
SPC TECHNOLOGY/ MULTICOMP
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Package Shape: RECTANGULAR; Transistor Element Material: SILICON;
FDC5614P
MSKSEMI SEMICONDUCTOR
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 2 W; Transistor Element Material: SILICON; Minimum DS Breakdown Voltage: 60 V;
1N4148
General Diode
RECTIFIER DIODE; Surface Mount: NO; Maximum Output Current: .15 A; Maximum Reverse Recovery Time: .004 us; Terminal Finish: Tin/Lead (Sn/Pb); No. of Elements: 1;
BAV99
National Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
FT232RL-TUBE
FTDI
FTDI's FT232RL-TUBE is a bus controller with 28 terminals, operating at 3.3-5.25V. It supports USB, VBUS, and UART interfaces with a data transfer rate of 60MBps. Ideal for industrial applications requiring RS232/RS422/RS485 compatibility in compact designs due to its small outline package style.
Weitron Technology
RECTIFIER DIODE; Surface Mount: NO; Maximum Reverse Recovery Time: .004 us; Config: SINGLE; Maximum Output Current: .15 A; Terminal Finish: Tin/Lead (Sn/Pb);
M39029/56351
Souriau
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Gender: FEMALE; Insertion Tools: M81969/14-10; Tool Settings: M22520/2-10; DIN Conformity: NO;
AMS1117-3.3
Advanced Monolithic Systems
AMS1117-3.3 by Advanced Monolithic Systems is a fixed positive single output LDO regulator with 1A max output current, 3% voltage tolerance, and 1.3V dropout voltage. Ideal for applications requiring stable 3.3V supply in compact designs due to its small outline package and excellent load regulation of 0.025%.
Lite-on Technology
RECTIFIER DIODE; Surface Mount: YES; Terminal Finish: Tin/Lead (Sn/Pb); Maximum Operating Temperature: 175 Cel; Maximum Output Current: .1 A; Maximum Reverse Recovery Time: .006 us;
OHN3020U
Optek Technology
MAGNETIC FIELD SENSOR,HALL EFFECT; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 3; Output Type: ANALOG CURRENT; Package Shape or Style: RECTANGULAR; Output Range: 25mA;
LM107H/883
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Technology: BIPOLAR;
Tak Cheong Electronics Holdings
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
C1206C104K5RACTU
KEMET Corporation
KEMET C1206C104K5RACTU 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 due to its rectangular package shape and wraparound terminals.
RK73H2ATTD10R0F
Koa Speer Electronics
RK73H2ATTD10R0F by Koa Speer Electronics is a 0805 SMT fixed resistor with 10 ohm resistance, 1% tolerance, and 0.25 W power dissipation. Ideal for surface mount applications in automotive electronics due to its AEC-Q200 reference standard and operating voltage of 150 V.
BSS138
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Maximum Feedback Capacitance (Crss): 10 pF; JEDEC-95 Code: TO-236AB;
EVQQ2203W
Panasonic
The Panasonic EVQQ2203W is a SPST keypad switch with 100000 cycle electrical life and 100000000 ohm insulation resistance. Ideal for applications requiring ON-OFF contact function, it operates b/w -40 to 85 °C with a max DC contact voltage of 15V.
PTS525SK10SMTRLFS
Itt Cannon
ITT Cannon's PTS525SK10SMTRLFS keypad switch offers SPST function with 100000 cycles. With a body width of 5.25in and height of 1.5mm, it operates b/w -40 to 60°C. Ideal for applications requiring momentary-tactile action, such as consumer electronics or industrial control systems.
TL1014BF180QG
E-switch
TL1014BF180QG by E-switch is a SPST Keypad Switch with 100000 cycles Electrical Life. It features NYLON Housing, BRASS Terminals, and SILVER End Contact Plating. Ideal for applications requiring a MOMENTARY-TACTILE switch type with 2.26N Max Operating Force in temperatures ranging from -20 to 70°C.
MSLPT5252BL1MTR
TE Connectivity
TE Connectivity's MSLPT5252BL1MTR is a SPST Keypad Switch with SILVER actuator and POLYETHYLENE housing. It operates b/w -25 to 70 °C, with 0.05 A AC/DC contact current. Ideal for panel mounting applications requiring 0.686 N operating force.
96BB2-056-R
Grayhill
Grayhill's 96BB2-056-R is a black keypad switch with 16 switches and a SPST switch function. It has an electrical life of 3,000,000 cycles and insulation resistance of 1,000,000,000 ohm. This switch is commonly used in keyboards and offers momentary switch action.
KMR231GLFS
C & K Components
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Solderability: REFLOW; Maximum Operating Force: 3.75 N; Packing Method: TR, 13 INCH;
FSMRA7J
Tyco Electronics Alcoswitch
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-RIGHT ANGLE; Switch Function: SPST; Type (Actuator): ROUND/EXTENDED TYPE; Packing Method: BULK; Maximum Operating Force: 1.57 N;
SKRBAGE010
Alps Electric
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): SHARP STEM; Solderability: REFLOW; Maximum Operating Force: 1.1 N;
KMR221NGLFS
KMR221NGLFS by C & K Components is a SPST keypad switch with 200000 cycles electrical life and 1VA@32VDC DC max power rating. It has an IP40 sealing, operates b/w -40 to 85 °C, and features SILVER contact materials. Ideal for applications requiring a momentary-tactile switch type in surface mount-straight mounting configurations.
RT1105AF350Q
KEYPAD SWITCH;
B3F-1050
Omron
Omron B3F-1050 Keypad Switch offers 1000000 cycles Electrical Life, 100000000 ohm Insulation Resistance, and 1.27 N Max Operating Force. Ideal for applications requiring MOMENTARY-TACTILE switch action in temperatures ranging from -25 to 70 °C.
MSLPT5252CG2WTR
TE Connectivity's MSLPT5252CG2WTR is a WHITE keypad switch with POLYETHYLENE housing. It operates b/w -25 to 70 °C, with SPST function and 0.05 A AC/DC contact current. Ideal for PANEL MOUNT applications, featuring SILVER plating and 0.98 N operating force.
SKHHCRA010
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): STEM; Switch Action: MOMENTARY-TACTILE; Contact Resistance: 100 mohm;
DTSM-61N-V-B
Diptronics Manufacturing
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Type (Actuator): ROUND TYPE; Maximum DC Contact Current: .05 A; Minimum Operating Temperature: -25 Cel;
147873-1
KEYPAD SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum DC Contact Voltage: 24 V; Minimum Operating Temperature: -35 Cel; Maximum Operating Force: 2.26 N;
SKHHBWA010
KEYPAD SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Type (Actuator): STEM; PCB Hole Count: 4; Insulation Resistance: 100000000 ohm;
EVPAA802Q
EVPAA802Q by Panasonic is a gray keypad switch with SPST function. It has an electrical life of 100,000 cycles and insulation resistance of 100M ohm. Ideal for applications requiring momentary switch action, such as control panels or electronic devices.
EVQPLFA08
EVQPLFA08 by Panasonic is a SPST keypad switch with a body width of 4.9 inch and a body height of 0.8 mm. It has an electrical life of 500000 cycles and can operate in temperatures ranging from -20 to 70 °C. This switch is commonly used in applications requiring momentary switch action, such as consumer electronics or industrial control systems.
KMR241GLFS
KMR241GLFS by ITT Cannon is a 2.8" keypad switch with IP40 sealing, SPST function, and 1ms contact bounce time. Ideal for surface mount applications, it operates b/w -40°C to 85°C with a max force of 5N. Suitable for various electronic devices requiring reliable tactile input control.
SKHHBVA010
Alps Alpine
Alps Alpine SKHHBVA010 is a black keypad switch with 1000000 cycles electrical life. It has 0.25mm actuator travel and operates b/w -40 to 90°C. Ideal for applications requiring momentary-tactile switch action, such as consumer electronics and industrial control systems.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
Quantity
12,000 In-Stock
Total price ≈ $80,197.29
© 2023 All rights reserved