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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Molex 18721-50 is a 2-row barrier strip terminal block with 21 ways, rated for 20A current and 300V voltage. It uses screw fastening method, suitable for cable mounting applications with CSA and UL safety approvals.
Median Price
$1.638
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Suppliers In-Stock
22
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1k+
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Perfect Parts
Assy Fe
Having 2 rows allows for easy organization and connection of multiple wires, making installation more efficient.
The cable mounting type makes it easy to connect and secure wires without the need for additional tools or accessories.
Having CSA and UL safety approvals ensures that the terminal block meets the necessary safety standards, giving peace of mind to users.
Supporting up to 12 AWG wire gauge allows for compatibility with a wide range of wire sizes and types.
A rated voltage of 300V ensures safe operation and compatibility with standard electrical systems.
The barrier strip terminal block design offers excellent contact and connection reliability, making it suitable for various applications.
The screw fastening method provides a secure and reliable connection between wires and the terminal block, reducing the risk of loose connections.
With a rated current of 20A, this terminal block can handle moderate to high levels of electrical current, suitable for many applications.
Having 21 ways allows for a higher number of connections and configurations, making it versatile for various wiring setups.
Terminals & Terminal Blocks 18721-50 attributes and parameters. Explore more Terminals & Terminal Blocks devices from Molex
Product Type:
Additional Features:
Safety Compliance:
Rated Voltage:
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Total Ways:
Total Decks:
Total Rows:
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18721-50 Terminals & Terminal Blocks trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.90.40.00
SB
Molex LLC is a manufacturer of electronic, electrical, and fiber optic connectivity systems. Molex offers over 100,000 products across a variety of industries, including data communications, medical, industrial, automotive and consumer electronics. They are notable for pioneering the Molex connector, which has seen universal adoption in personal computing. The company is considered the second largest electronic connector company in the world. Molex was established in 1938 by Frederick Krehbiel. The company began by making flowerpots out of an industrial byproduct plastic called Molex. Krehbiel developed this material by combining asbestos tailings, coal tar pitch, and limestone. Aside from flower pots, Molex also sold salt shakers before it expanded into electrical connectors and sensors.Later they made connectors for General Electric and other appliance manufacturers out of the same plastic. Molex acquired Woodhead Industries in 2006; the largest acquisition in the former's history at the time.
2N7002
Inter F E T
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Drain-Source On Resistance: 7.5 ohm; Maximum Drain Current (Abs) (ID): .115 A;
Comchip Technology
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Operating Temperature: 150 Cel; Operating Mode: ENHANCEMENT MODE;
DS18B20
Maxim Integrated
DS18B20 by Maxim Integrated is a 12-bit digital temperature sensor with 1-Wire interface. It operates b/w -55 to 125°C, with ±0.5°C accuracy. Commonly used in applications requiring precise temperature monitoring like HVAC systems and industrial automation.
SS14
Continental Device India
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Eic Semiconductor
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
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;
National Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Package Style (Meter): SMALL OUTLINE; Terminal Position: DUAL;
1N4148WS
Bytesonic Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
STM32H743BIT6
STMicroelectronics
STM32H743BIT6 by STMicroelectronics is a 32-bit microcontroller with Cortex-M7 CPU, 208 terminals, and 1085440 bytes of RAM. It features 2 DAC channels, 32 ADC channels, and operates at a max clock frequency of 48 MHz. Ideal for industrial applications requiring high-speed processing and extensive peripheral connectivity.
SDR0604-101KL
Bourns
SDR0604-101KL by Bourns is a surface mount fixed inductor with a nominal inductance of 100 uH. It is a general purpose inductor suitable for power applications, with a max rated current of 0.52 A and a self-resonance frequency of 9 MHz.
BAV99
Weitronic Enterprise
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
Taiwan Semiconductor
LM358N
Samsung
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
LM78L05ACMX/NOPB
Texas Instruments
LM78L05ACMX/NOPB by Texas Instruments is a fixed positive single output standard regulator with an output voltage of 5V and max current of 0.1A. It operates b/w 0-125°C, has a dropout voltage of 1.6V, and can handle input voltages up to 30V making it ideal for various electronic applications requiring stable power supply.
LL4148
Secos
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148WT
Yangzhou Yangjie Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
M24308/2-1F
Amphenol
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Body or Shell Style: RECEPTACLE; Body Length: 1.228 inch; No. of Rows Loaded: 2;
CRCW06030000Z0EAHP
Vishay Intertechnology
Vishay Intertechnology's CRCW06030000Z0EAHP is a 0 ohm jumper resistor with METAL GLAZE/THICK FILM tech. Operating temp range -55 to 155 °C, it's SMT package style makes it ideal for automotive applications meeting AEC-Q200 standard.
ABS25-32.768KHZ-1-T
Abracon
Abracon's ABS25-32.768KHZ-1-T crystal oscillator offers 10 ppm frequency tolerance, 126% stability, and 50000 ohm series resistance. Ideal for applications requiring 0.032768 MHz nominal operating frequency, such as IoT devices and precision timing systems.
STM8S003F3P6TR
STM8S003F3P6TR by STMicroelectronics is an 8-bit microcontroller with a max clock frequency of 16 MHz. It features 1024 RAM bytes, 128 data EEPROM size, and 5-ch 10-bit ADC channels. Ideal for industrial applications requiring low power mode and connectivity via I2C, SPI, and UART interfaces.
19002-0005
Molex
PUSH-ON TERMINAL; Wire Gauge: 18 AWG; Terminal Gender: FEMALE; Wire Cross Section: .8 mm2;
DRA1-CMX60D10
Crydom
The Crydom DRA1-CMX60D10 is a modular terminal block with 4 ways, rated for 60V and 10A. It features DIN rail mounting and screw fastening method, approved by CE and UL. Ideal for industrial applications requiring secure electrical connections in control panels.
222-413/VE00-2500
Wago
Wago 222-413/VE00-2500 is a BARRIER STRIP TERMINAL BLOCK with 3 ways, rated for 20A current and 600V voltage. It supports wire gauge up to 12 AWG and wire cross section of 3.31 mm2, suitable for CABLE mounting applications with safety approvals like ABS, CUL, EN/EC, PSE, UL.
AMPS-0-0640907-1
TE Connectivity's AMPS-0-0640907-1 is a PUSH-ON TERMINAL with 10 AWG wire gauge, rated for 300V. UL approved, it suits applications requiring FEMALE terminals with 6.64 mm2 wire cross section.
3044092
Phoenix Contact
Phoenix Contact 3044092 is a DIN RAIL mounted MODULAR TERMINAL BLOCK with 2 ways. It supports wire gauge up to 12 AWG and wire cross section of 4 mm². Safety approved by CB, CSA, CUL, GOST, UL, VDE for various industrial applications.
MS25036-152
RING TERMINAL; Additional Features: NYLON; Wire Gauge: 14 AWG; Voltage (Rated): 300 V; Safety Approval: UL; Wire Cross Section: 2.62 mm2;
281-603/281-400
MODULAR TERMINAL BLOCK;
733-368
Wago's 733-368 strip terminal block has 8 ways, rated for 4A current and 150V voltage. It is a single-row board-mounted connector with safety approvals from ABS, CCA, CSA, DNVGL, EN, and IEC. Ideal for various applications requiring secure electrical connections.
1790522
BARRIER STRIP TERMINAL BLOCK; Manufacturer Series: 1790522;
1-770904-1
Tyco Electronics Amp
WIRE TERMINAL; Wire Gauge: 22 AWG; Terminal Gender: FEMALE; Manufacturer Series: 770904; Wire Cross Section: .9 mm2;
1729131
Phoenix Contact 1729131 is a UL-approved barrier strip terminal block for board mounting. It supports wire gauge up to 16 AWG with rated voltage of 250V and current of 13.5A. Ideal for applications requiring secure connections in industrial control systems.
M81824/1-1
WIRE TERMINAL; Wire Gauge: 20 AWG; Wire Cross Section: .61 mm2; Safety Approval: UL;
51864-5
TE Connectivity's 51864-5 is a UL-approved FEMALE RING TERMINAL for 14 AWG wire with a rated voltage of 300V. Ideal for applications requiring secure electrical connections and compatibility with wires up to 2.08 mm2 cross-section.
4513-4
Winchester Interconnect
PCB TERMINAL; Manufacturer Series: 4513; Terminal Gender: MALE;
1843224
The Phoenix Contact 1843224 is a UL-approved barrier strip terminal block with 160V rated voltage and 8A rated current. It features a board mounting type and connector fastening method, suitable for applications requiring secure electrical connections in industrial settings.
43080-0001
PCB TERMINAL; Terminal Gender: FEMALE;
1787072
Phoenix Contact 1787072 is a 2-row strip terminal block with 8 ways and rated voltage of 160V. It has CB, CUL, UL, VDE safety approvals and fastens via connector. Ideal for board and panel mounting, it handles up to 8A current making it suitable for various industrial applications.
1041880210
Molex 1041880210 is a UL-approved BARRIER STRIP TERMINAL BLOCK for BOARD mounting. It supports 18 AWG wire gauge, rated at 300V/9A, with 2 ways. Ideal for industrial applications requiring secure electrical connections.
1890963
The Phoenix Contact 1890963 is a modular terminal block with a rated voltage of 400V and a current rating of 16A. It has a wire cross section of 2.5mm2 and can accommodate wires up to 14 AWG. This terminal block is suitable for board mounting applications in various industries.
1840379
The Phoenix Contact 1840379 is a modular terminal block with 3 ways and a rated current of 8A. It has a wire cross section of 1.5mm2 and is UL approved for safety. This terminal block is commonly used in cable mounting applications.
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18721-50
Beau Interconnect
BARRIER STRIP TERMINAL BLOCK; Mounting Type: CABLE; Fastening Method: SCREW; Additional Features: PANEL MOUNT, PHENOLIC, 94V-0; Wire Gauge: 12 AWG; Voltage (Rated): 300 V;
18722-49
1872249
BARRIER STRIP TERMINAL BLOCK; Mounting Type: CONNECTOR; Fastening Method: SCREW; Additional Features: STANDARD: UL 94V-0, PA; Wire Gauge: 12 AWG; Voltage (Rated): 320 V;
1872130
STRIP TERMINAL BLOCK;
1872061
BARRIER STRIP TERMINAL BLOCK; Mounting Type: CONNECTOR; Fastening Method: SCREW; Additional Features: STANDARD: UL 94V-0, PA; Wire Gauge: 16 AWG; Voltage (Rated): 160 V;
1872142
BARRIER STRIP TERMINAL BLOCK;
1872143
1872017
1872032
1872087
1872127
1872059
1872139
1872029
1872090
1872045
1872100
1872101
BARRIER STRIP TERMINAL BLOCK; Mounting Type: BOARD; Fastening Method: CONNECTOR; Additional Features: STANDARD: UL 94V-0, PBT; Wire Gauge: 15 AWG; Voltage (Rated): 160 V;
18721-45
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
Quantity
12,000 In-Stock
Total price ≈ $80,197.29
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