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
START420 by STMicroelectronics is an NPN RF BJT designed for amplifier applications. It features a max collector-emitter voltage of 4.5V, operates in the C band, and comes in a compact rectangular package with gull-wing terminals. Ideal for surface mount designs, it supports efficient signal amplification.
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The plastic/epoxy material provides durability and resilience, making this product suitable for various environments.
NPN transistors are widely used and offer good switching speeds, making this device ideal for amplifier applications.
Single configuration allows for straightforward integration into circuits, optimizing space and reducing cost.
Designed for amplifier applications, ensuring high performance in audio and signal-processing tasks.
Surface mount capability enables compact designs and automated assembly processes, enhancing production efficiency.
Rectangular package shape provides efficient space utilization on printed circuit boards.
Gull wing terminals facilitate easy soldering and improve mechanical stability on the PCB.
C band operation makes this transistor suitable for communication applications, including satellite and radar systems.
Four terminals provide flexibility in circuit design, allowing for multiple configurations and connections.
The small outline package style minimizes footprint on PCBs while allowing for good thermal performance.
A maximum collector-emitter voltage of 4.5 V supports low-voltage applications, ideal for battery-operated devices.
Silicon provides excellent thermal stability and reliability, ensuring consistent performance across applications.
A maximum collector current of 0.04 A allows this transistor to effectively handle small signal amplification tasks.
Dual terminal positioning enhances ease of integration into various circuit layouts with minimal complications.
Emitter case connection simplifies circuit design and improves the efficiency of signal amplification.
RF Small Signal Bipolar Junction Transistors (BJT) START420 attributes and parameters. Explore more RF Small Signal Bipolar Junction Transistors (BJT) devices from STMicroelectronics
Additional Features:
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START420 Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
NSN
6130-15-139-9770, 6130151399770
NIIN
151399770
STMicroelectronics is a global leader in the semiconductor manufacturing industry, with over 35 years of experience providing innovative and advanced technologies for customers around the world. Headquartered in Netherlands, STMicroelectronics has more than 51,323 employees worldwide and operates across 32 countries all over Europe, Asia-Pacific and the Americas. The company’s portfolio includes integrated circuits, discrete components, application-specific standard products, and computer chipsets. STMicroelectronics serves a wide range of industries such as automotive, consumer markets, healthcare and industrial applications.
President, CEO
Jean-Marc Chery
President, CFO, Finance, Purchasing,Enterprise Risk Management & Resilience
Lorenzo Grandi
President, Sales & Marketing
Jerome Roux
Castelletto
Fabrication
Fab Initiation
1968
Italy
Wafer Capacity
SGFAB AMK 6
2000
Singapore
29,000
AG200
Agrate Brianza
14,000
RST 8
France
Rousset
35,000
Crolles 1
1993
Crolles
30,000
Crolles 2-ext. mod 5
Crolles 2-ext. mod 2
2022
Crolles 2-ext. mod 3
2023
Crolles 2
2004
28,000
1985
SiC Fab
2006
Sweden
Norrköping
10,000
Fab 3
2005
Tours
2,000
Fab 1 & Fab 2
1978
55,000
Fab 2
1997
Catania
SGFAB-AMK 6E
2003
145,000
SGFAB-AMJ 9
1984
152,000
AG300 (R3)
1980
25,000
1987
34,000
AG300
2024
Crolles 2-ext. mod 1
2020
Fab 1 6-inch fab
2013
11,000
SiC 6-inch line
2021
2,500
200mm GaN
2018
SGFAB-AMK 8
2001
Crolles 2- JV Fab
SGFAB-AMK 6
2016
38,125
SGFAB-AMK 2E
2010
20,000
Silicon Carbide A.B.
SiC wafer/EPI Fab
SiC Device Fab
2025
2N2222A
STMicroelectronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .6 A;
SMBJ18CA
General Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM555CN
Fairchild Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
LM317T/NOPB
Texas Instruments
LM317T/NOPB by Texas Instruments is an adjustable positive single output standard regulator with a max output voltage of 37V and max input-output voltage differential of 40V. It operates in temperatures ranging from 0 to 125°C, making it suitable for various applications requiring precise voltage regulation in electronic circuits. The package style is flange mount with three terminals for easy installation.
World Products
STM32H753IIT6
STM32H753IIT6 by STMicroelectronics is a 32-bit microcontroller with 176 terminals, operating at up to 48 MHz. It features 20-Ch 16-Bit ADCs and 2-Ch 12-Bit DACs, suitable for industrial applications requiring high-speed data processing and connectivity via CAN, ETHERNET, USB, and more.
LM2931AZ-5.0RPG
Onsemi
LM2931AZ-5.0RPG by Onsemi is a Fixed Positive Single Output LDO Regulator with 5V nominal output voltage and 0.1A max output current. It features a low dropout voltage of 0.6V, making it suitable for applications requiring stable power supply in temperature range from -40 to 125°C. The package style is cylindrical with matte tin terminal finish, ideal for various electronic devices needing precise voltage regulation.
LM317AEMP/NOPB
LM317AEMP/NOPB by Texas Instruments is an adjustable positive single output standard regulator with a max output voltage of 37V and a max output current of 1.5A. It operates in temperatures ranging from -40°C to 125°C, making it suitable for various applications requiring precise voltage regulation in a compact package.
1N4148
Terry Semiconductor
RECTIFIER DIODE; Surface Mount: NO; Maximum Reverse Recovery Time: .004 us; Config: SINGLE; JESD-609 Code: e0; Maximum Repetitive Peak Reverse Voltage: 100 V;
LL4148
Rectron
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
SS14
Hitano Enterprise
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
PIC18F4550-I/P
Microchip Technology
PIC18F4550-I/P by Microchip Technology is an 8-bit microcontroller with a max clock frequency of 48 MHz. It features 13-Ch 10-Bit ADC channels and USB connectivity, making it ideal for industrial applications requiring low power consumption and high-speed data processing. With 2048 RAM bytes and 256 Data EEPROM size, this CMOS technology-based microcontroller offers versatile performance in various embedded systems.
BAV99
Kec
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
Zowie Technology
RECTIFIER DIODE; Surface Mount: YES; No. of Phases: 1; Maximum Operating Temperature: 125 Cel; No. of Elements: 1; Maximum Non Repetitive Peak Forward Current: 30 A;
M24308/2-1F
Cristek Interconnects
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; No. of Rows Loaded: 2; Shell Size: 1/E; Filter Feature: NO;
Leshan Radio
RECTIFIER DIODE; Surface Mount: YES; Maximum Non Repetitive Peak Forward Current: 2 A; Maximum Reverse Recovery Time: .004 us; No. of Phases: 1; Maximum Operating Temperature: 175 Cel;
BSS138-7-F
Diodes Incorporated
Diodes Inc. BSS138-7-F is a N-channel FET with 50V DS breakdown voltage, 0.2A max drain current, and 3.5 ohm RDS(on). Ideal for switching applications in small outline packages with matte tin finish, operating up to 150°C peak reflow temp.
Yangzhou Yangjie Electronics
LM2931Z-5.0G
LM2931Z-5.0G by Onsemi is a Fixed Positive Single Output LDO Regulator with 5V output voltage, 0.6V dropout voltage, and 0.1A output current. It is ideal for applications requiring stable power supply in temperature-sensitive environments due to its operating range of -40°C to 125°C.
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;
MPSH24
MPSH24 by Onsemi is an NPN RF BJT transistor with a max collector-emitter voltage of 30V and fT of 400MHz. Ideal for amplifier applications, it has a max power dissipation of 0.625W and operates in the very high frequency band.
FH105A-TR-E
RF Small Signal Bipolar Transistors; Maximum Time At Peak Reflow Temperature (s): 30; JESD-609 Code: e6; Peak Reflow Temperature (C): 260; Terminal Finish: TIN BISMUTH; Moisture Sensitivity Level (MSL): 1;
2N5109
2N5109 by Texas Instruments is a NPN BJT transistor with max. collector-emitter voltage of 20V and max. collector current of 0.4A, ideal for amplifier applications in the very high frequency band up to 1200MHz. Its package style is cylindrical with a metal body material and wire terminals, featuring a single configuration design.
MMBTH81LT1
MMBTH81LT1 by Onsemi is a PNP RF small signal BJT with a max collector-emitter voltage of 20V and a nominal transition frequency of 600MHz. It is commonly used in applications requiring ultra high frequency band performance, such as wireless communication systems.
BFW16A
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 1200 MHz; Maximum Power Dissipation (Abs): 1.5 W; Maximum Collector Current (IC): .15 A;
2N3643
International Devices
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .35 W; Maximum Collector Current (IC): .5 A;
NTE2403
Nte Electronics
NTE2403 by Nte Electronics is a PNP RF BJT transistor with 15V VCE, 0.025A IC, and 5000MHz fT. Ideal for ultra-high frequency amplifier applications in small outline packages with gull wing terminals for surface mount assembly.
934067695115
NXP Semiconductors
RF Small Signal Bipolar Transistors; Moisture Sensitivity Level (MSL): 1; Terminal Finish: TIN; Peak Reflow Temperature (C): 260; Maximum Time At Peak Reflow Temperature (s): 30; JESD-609 Code: e3;
SMMBT918LT1
SMMBT918LT1 by Onsemi is a NPN RF BJT transistor with 3 terminals, suitable for amplifier applications in the ultra-high frequency band. It has a max collector-emitter voltage of 15V, collector current of 0.05A, and transition frequency of 600MHz. The package is surface mountable with Gull Wing terminals in a small outline style.
2N2222
Electronic Transistors
MPSH81RLRA
MPSH81RLRA by Onsemi is a PNP RF BJT transistor with 3 terminals in a cylindrical package. It has a max collector-emitter voltage of 20V, fT of 600MHz, and low 0.85pF capacitance. Ideal for amplifier applications due to its silicon element material and through-hole terminal form.
CA3083M96
Rochester Electronics
NPN; Configuration: SEPARATE, 5 ELEMENTS; Surface Mount: YES; Nominal Transition Frequency (fT): 450 MHz; Maximum Collector Current (IC): .1 A; Qualification: Not Qualified;
2SC4915-O,LF(B
Toshiba
2SC4915-O,LF(B by Toshiba is an NPN RF BJT with a single configuration for amplifier applications. It offers a min power gain of 17 dB and operates in the very high frequency band up to 550 MHz. With a max collector-emitter voltage of 30V and dual terminal position, it is suitable for small outline surface mount designs.
MPS918
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 600 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .05 A;
MPSA10RLRA
MPSA10RLRA by Onsemi is an NPN RF BJT with a max collector-emitter voltage of 25V and fT of 650MHz. It is used in ultra-high frequency applications due to its low capacitance (0.7pF) and high operating temp (150 °C). The transistor's through-hole package makes it suitable for various cylindrical-shaped devices.
MPSH10RLRE
MPSH10RLRE by Onsemi is an NPN RF BJT with a max collector-emitter voltage of 25V and fT of 650MHz. It is used in ultra-high frequency applications due to its low capacitance (0.7pF) and high temp rating (150 °C). The transistor's through-hole package makes it suitable for various cylindrical style designs.
BFQ256A-TAPE-7
PNP; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 1200 MHz; Maximum Collector Current (IC): .3 A; No. of Terminals: 4;
MMBTH10-4LT1G
MMBTH10-4LT1G by Onsemi is an NPN RF BJT with a max. collector-emitter voltage of 25V and fT of 800MHz. Ideal for ultra-high frequency applications, it has a small outline package, matte tin finish, and operates up to 150°C.
BFR92AW,115
NXP Semiconductors' BFR92AW,115 is an NPN RF BJT with a max fT of 5000 MHz. It has a max power dissipation of 0.3 W and operates in the ultra-high frequency band. Ideal for amplifier applications, this transistor comes in a small outline package with gull wing terminals for surface mount assembly.
Hi-tron Semiconductor
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
START405
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 42000 MHz; Maximum Power Dissipation (Abs): .045 W; Maximum Collector Current (IC): .01 A;
START405TR
START420TR
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .18 W; Maximum Collector Current (IC): .04 A; Maximum Collector-Emitter Voltage: 4.5 V;
START450
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 42000 MHz; Maximum Power Dissipation (Abs): .45 W; Maximum Collector Current (IC): .1 A;
START450TR
START499
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 42000 MHz; Maximum Power Dissipation (Abs): .9 W; Maximum Collector Current (IC): .6 A;
START499D
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.7 W; Maximum Collector Current (IC): 1 A; Maximum Time At Peak Reflow Temperature (s): 30;
START499ETR
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 42000 MHz; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .6 A;
START499TR
START540
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 45000 MHz; Maximum Collector Current (IC): .04 A; Highest Frequency Band: C BAND;
START540TR
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 45000 MHz; Maximum Power Dissipation (Abs): .18 W; Maximum Collector Current (IC): .04 A;
START620TR
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 45000 MHz; Maximum Power Dissipation (Abs): .135 W; Maximum Collector Current (IC): .04 A;
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