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
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 290 W; Maximum Collector Current (IC): 20 A; Transistor Element Material: SILICON;
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$231.120
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Mouser Electronics
1+ parts
$374.940
100+ parts
$306.300
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Richardson RFPD
$87.300
Vyrian
Nova Conductors
Sunrise Surplus Inc.
GES GmbH
Advanced Electronics
$0.563
$0.557
$0.535
One Stop Electronics
$109.180
Metaverse IC Inc.
QUARKTWIN TECHNOLOGY LTD
Microchip USA
Aranea Global
Perfect Parts
RF Power Bipolar Junction Transistors (BJT) MRF421 attributes and parameters. Explore more RF Power Bipolar Junction Transistors (BJT) devices from Asi Semiconductor
Maximum Collector Current (IC):
Maximum Collector-Emitter Voltage:
Configuration:
Minimum DC Current Gain (hFE):
Highest Frequency Band:
JESD-30 Code:
No. of Elements:
No. of Terminals:
Maximum Operating Temperature:
Package Body Material:
Package Shape:
Package Style (Meter):
Polarity or Channel Type:
Maximum Power Dissipation (Abs):
Qualification:
Sub-Category:
Surface Mount:
Terminal Form:
Terminal Position:
Transistor Application:
Transistor Element Material:
MRF421 Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
ASI Semiconductor, Inc. (ASI) designs, supplies and markets state-of-the-art high power, pulsed RF transistors and pallets. We proudly serve thousands of customers in dozens of countries, specifically focusing on pulsed RF commercial applications for avionics, radar, medical and industrial applications. We are introducing VIMOS technology to meet the needs and requirements of this unique marketplace. We have supported this industry for over 30 years which has included several governments and Fortune 500 customers. ASI was founded in 1979 and is ISO 9001 certified. Our headquarters is located in North Hollywood, CA, USA.
1N4148WS
Lite-on Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Dc Components
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; No. of Elements: 1; Terminal Form: GULL WING;
1N4148
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
BAV99
Sensitron Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
Solid State Devices
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
BSS123LT1G
Onsemi
BSS123LT1G by Onsemi is a N-CHANNEL FET with 100V DS breakdown voltage, 0.17A drain current, and 6 ohm on resistance. Ideal for switching applications, it operates in enhancement mode with a max power dissipation of 0.225W. It comes in a small outline package with gull wing terminals and can withstand temperatures from -55 to 150°C.
LM555CN
Harris Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
Daco Semiconductor
Rectron
LL4148
Secos
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
Vpt Components
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 1 W; Maximum Collector Current (IC): .8 A; Maximum Power Dissipation Ambient: .5 W;
BSS138
National Semiconductor
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;
Jgd Semiconductors
RECTIFIER DIODE; Surface Mount: NO; Maximum Operating Temperature: 175 Cel; Maximum Reverse Recovery Time: .004 us; Maximum Non Repetitive Peak Forward Current: .5 A; Maximum Forward Voltage (VF): 1 V;
LM358AN
Fairchild Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
RECTIFIER DIODE; Surface Mount: YES; Maximum Reverse Recovery Time: .006 us; Maximum Repetitive Peak Reverse Voltage: 70 V; Maximum Forward Voltage (VF): 1 V; Maximum Operating Temperature: 150 Cel;
Weitron Technology
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .225 W; Terminal Form: GULL WING; Terminal Position: DUAL;
Unitrode
Microsemi
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Minimum DC Current Gain (hFE): 30; No. of Elements: 1;
ST3485EBDR
STMicroelectronics
ST3485EBDR by STMicroelectronics is a Line Driver & Receiver with 3.3V power supply, EIA-422/EIA-485 interface standard, and 30ns max transmit delay. It is ideal for industrial applications requiring differential output and operates in temperatures ranging from -40 to 85°C.
1552200168
Molex
WIRE AND CABLE;
935377832118
NXP Semiconductors
RF Power Bipolar Transistors;
RX3034B70W
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 185 W; Maximum Collector Current (IC): 8.5 A; Package Shape: RECTANGULAR;
RX1214B350Y
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 1200 MHz; Maximum Power Dissipation (Abs): 750 W; Maximum Collector Current (IC): 25 A;
BLV2347
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 250 W; Maximum Collector Current (IC): 10 A; No. of Terminals: 2;
MX0912B250Y
MX0912B250Y by NXP Semiconductors is an NPN RF power BJT designed for amplifier applications. It features a max collector-emitter voltage of 20V, operates up to 200 °C, and offers a min power gain of 7 dB. Ideal for L-band surface mount designs.
BLS2731-50
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 180 W; Maximum Collector Current (IC): 6 A; No. of Terminals: 2;
BLV956
NPN; Surface Mount: YES; Package Shape: RECTANGULAR; Package Body Material: CERAMIC, METAL-SEALED COFIRED; Transistor Application: AMPLIFIER; No. of Terminals: 6;
2N5641
Motorola
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): 15 W; Maximum Collector Current (IC): 1 A;
MRF492A
MRF492A by Motorola is a NPN RF BJT with 11 dB power gain, ideal for amplifier applications in the VHF band. With a max power dissipation of 250 W and max collector current of 20 A, it operates up to 150°C. Featuring a ceramic-metal package, it has a transition frequency of 50 MHz and collector-emitter voltage of 18 V.
SD4017
SD4017 by STMicroelectronics is a NPN RF BJT transistor with 6 terminals, suitable for AMPLIFIER applications in the ULTRA HIGH FREQUENCY BAND. It has a max power dissipation of 88W, operates at up to 200 °C, and can handle a collector current of 0.06A.
BLF182XRS
BLY89A
BLY89A by NXP Semiconductors is an NPN RF power BJT designed for amplifier applications. It features a max collector current of 5 A, operates up to 200 °C, and supports frequencies in the very high range. Its round plastic/epoxy package ensures reliable performance.
MRF658
MRF658 by Motorola is a NPN RF BJT transistor with 4.15 dB min power gain, suitable for amplifier applications in the ultra-high frequency band. It has a max power dissipation of 175 W, operates at up to 150°C, and can handle a collector current of 15 A.
AM2931-125
STMicroelectronics' AM2931-125 is a NPN RF BJT transistor with 500W power dissipation, ideal for S Band applications. Featuring a single configuration and 16A max collector current, it operates up to 250 °C in a ceramic-metal package suitable for switching purposes.
PTB20216
Infineon Technologies
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Collector Current (IC): 1 A; No. of Elements: 1; Transistor Application: AMPLIFIER;
BLS3135-50TRAY
NPN; Configuration: SINGLE; Surface Mount: YES; Qualification: Not Qualified; No. of Terminals: 2; JESD-30 Code: R-CDFM-F2;
MRF899
NPN; Configuration: COMMON EMITTER, 2 ELEMENTS; Surface Mount: YES; Maximum Power Dissipation (Abs): 230 W; Maximum Collector Current (IC): 25 A; Transistor Application: AMPLIFIER;
SD1530-08
SD1530-08 by STMicroelectronics is an NPN BJT transistor for switching applications in L Band. With 87.5W power dissipation, it operates at max 200 °C with a max collector-emitter voltage of 65V. This single configuration transistor has a max collector current of 2.6A and min hFE of 10, suitable for surface mount applications.
2SC4202
Toshiba
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 1100 MHz; Maximum Collector Current (IC): .5 A; Transistor Application: SWITCHING;
PH1214-55EL
M/a-com Technology Solutions
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 100 W; Maximum Collector Current (IC): 7 A; Terminal Form: FLAT;
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Asi Semiconductor
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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