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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The Onsemi BD679AS is a NPN Darlington BJT with 40W power dissipation, 750 min hFE, and 80V VCE. Ideal for switching applications, it operates up to 150°C and has a max collector current of 4A. Its package style is flange mount with matte tin finish in a rectangular shape.
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$22.644
Lucentia Tech
The use of plastic/epoxy material makes this transistor light-weight and durable, ideal for various applications.
Being an NPN transistor allows for easy integration into existing circuit designs, offering compatibility and flexibility.
The Darlington configuration provides high gain and low saturation voltage, making this transistor suitable for high-power switching applications.
Designed specifically for switching applications, this transistor ensures efficient and reliable performance in various electronic devices.
The rectangular shape of the package offers easy mounting and installation options, enhancing the overall versatility of this transistor.
The through-hole terminal form facilitates easy soldering and ensures a secure connection in circuit boards.
With three terminals, this transistor is easy to work with and offers straightforward connectivity in circuit designs.
The high maximum power dissipation capability allows this transistor to handle high-power applications without the risk of overheating.
The flange mount package style provides a secure and stable mounting option, suitable for industrial and harsh environments.
The high minimum DC current gain ensures consistent and reliable amplification capabilities in various circuit designs.
With a maximum operating temperature of 150°C, this transistor can withstand high-temperature environments without compromising performance.
The high maximum collector-emitter voltage rating ensures safe operation in circuits with higher voltage requirements.
Made of silicon, this transistor offers high performance, reliability, and efficiency, making it a trusted choice for many electronic applications.
With a high maximum collector current rating, this transistor can handle demanding current loads in various circuit configurations.
The matte tin terminal finish offers excellent solderability and corrosion resistance, ensuring a reliable and long-lasting connection in electronic assemblies.
The single terminal position simplifies the installation process and ensures proper orientation in circuit designs.
With a high nominal transition frequency, this transistor can function efficiently in high-frequency applications, making it a versatile choice for diverse circuit designs.
Power Bipolar Junction Transistors (BJT) BD679AS attributes and parameters. Explore more Power Bipolar Junction Transistors (BJT) devices from Onsemi
Maximum Collector Current (IC):
Maximum Collector-Emitter Voltage:
Configuration:
Minimum DC Current Gain (hFE):
JEDEC-95 Code:
JESD-30 Code:
JESD-609 Code:
No. of Elements:
No. of Terminals:
Maximum Operating Temperature:
Package Body Material:
Package Shape:
Package Style (Meter):
Peak Reflow Temperature (C):
Polarity or Channel Type:
Maximum Power Dissipation (Abs):
Qualification:
Sub-Category:
Surface Mount:
Terminal Finish:
Terminal Form:
Terminal Position:
Maximum Time At Peak Reflow Temperature (s):
Transistor Application:
Transistor Element Material:
Nominal Transition Frequency (fT):
BD679AS Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
Established in 1999, Onsemi is a leading global provider of power and image-sensing technologies. They are dedicated to building a better future for the automotive, industrial, cloud, medical, and IoT markets. Onsemi's core technologies include analog, digital, and mixed-signal products that offer innovative solutions for advanced automotive systems; highly reliable power management products for industrial applications; low-cost imaging solutions for medical equipment and consumer electronics; and robust communication architectures for the Internet of Things (IoT).
President, CEO
Hassane El-Khoury
Executive VP, CFO, Treasurer
Thad Trent
Senior VP
Ross F. Jatou
Aizu Fab
Fabrication
Fab Initiation
1995
Japan
Aizu Wakamatsu
Wafer Capacity
52,000
Si/EPI Fab
2018
Czech Republic
Rožnov pod Radhoštěm
10,000
Expansion Phase 1 for SiC / EPI
2019
14,500
Expansion Phase 2 for SiC / EPI
2024
SiC Fab
2022
USA
Hudson
Bucheon
2013
South Korea
61,000
ISMF - Malaysia
1990
Malaysia
Seremban
95,000
Roznov Device Fab
1987
80,000
Fab 10
2002
East Fishkill
15,000
Burlington
1986
Canada
Gresham
1998
45,000
Bucheon 150mm
2000
50,000
Rochester
1983
Nampa
Pennsylvania
1997
Mountain Top
36,000
LM358DR2G
Onsemi
LM358DR2G by Onsemi is a dual operational amplifier with 7000uV max input offset voltage and 70dB nominal CMRR. Ideal for applications requiring low bias current such as sensor interfaces, signal conditioning circuits, and audio amplifiers. Package style: Small Outline, Technology: Bipolar, Unity Gain Bandwidth: 1000 kHz.
SMBJ18CA
Sangdest Microelectronics (Nanjing)
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Changzhou Starsea Electronics
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
BSS138
Infineon Technologies
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Maximum Drain Current (Abs) (ID): .2 A; Maximum Feedback Capacitance (Crss): 8 pF;
1N4148WT
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Renesas Technology
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
Bytesonic Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
2N2222A
Zetex Plc
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
FDN306P
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .5 W; Maximum Drain Current (Abs) (ID): 2.6 A; Operating Mode: ENHANCEMENT MODE;
BAV99
Electronic Devices
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Vishay Intertechnology
2N7002 by Vishay Intertechnology is a N-CHANNEL FET with 60V DS Breakdown Voltage, 0.115A Drain Current, and 7.5 ohm On Resistance. Ideal for SWITCHING applications due to its SINGLE configuration with BUILT-IN DIODE. Operates in ENHANCEMENT MODE, suitable for surface mount with GULL WING terminals.
MMBT3904LT1G
MMBT3904LT1G by Onsemi is a NPN BJT with max. collector-emitter voltage of 40V, hFE of 30, and fT of 300MHz. Ideal for small signal applications in electronics due to its compact size, high transition frequency, and low power dissipation capabilities.
Rugao Dachang Electronic
Panjit International
Won-top Electronics
LM555CN
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
Daco Semiconductor
C0805C104K5RACTU
KEMET Corporation
KEMET C0805C104K5RACTU 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 surface mount applications in electronics requiring compact size and reliable performance.
1N4148WS
Synsemi
JANTX2N3055
Vpt Components
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 117 W; Maximum Collector Current (IC): 15 A; Transistor Application: SWITCHING;
TIP122
Microsemi
NPN; Surface Mount: NO; Maximum Collector Current (IC): 5 A; JEDEC-95 Code: TO-220; Package Style (Meter): FLANGE MOUNT; Package Shape: RECTANGULAR;
TIP47
Power Innovations
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Collector Current (IC): 1 A; No. of Elements: 1; Terminal Form: THROUGH-HOLE;
TIP29C
STMicroelectronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 3 MHz; Maximum Power Dissipation (Abs): 30 W; Maximum Collector Current (IC): 1 A;
TIP41C
Secos
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 3 MHz; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 6 A;
BD14016S
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 12.5 W; Maximum Collector Current (IC): 1.5 A; Terminal Position: SINGLE;
MJE3055T
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 2 MHz; Maximum Power Dissipation (Abs): 75 W; Maximum Collector Current (IC): 10 A;
TIP42C
Nte Electronics
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 3 MHz; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 6 A;
TIP120
Asi Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 20 MHz; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 8 A;
BD138
Samsung
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 75 MHz; Maximum Power Dissipation (Abs): 8 W; Maximum Collector Current (IC): 1.5 A;
TIP142
New Jersey Semiconductor Products
NPN; Configuration: SINGLE; Maximum Collector Current (IC): 10 A; Maximum Collector-Emitter Voltage: 100 V; Transistor Element Material: SILICON; Minimum DC Current Gain (hFE): 500;
Bourns
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 1 A; Qualification: Not Qualified;
MJ15016G
The Onsemi MJ15016G is a PNP BJT transistor with max. collector-emitter voltage of 120V, max. collector current of 15A, and max. power dissipation of 180W. It is commonly used for switching applications due to its single configuration and high transition frequency of 2.2MHz.
TIP36C
Inchange Semiconductor
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 3 MHz; Maximum Power Dissipation (Abs): 125 W; Maximum Collector Current (IC): 25 A;
BDX53C
NPN; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Power Dissipation (Abs): 60 W; Maximum Collector Current (IC): 8 A; Package Shape: RECTANGULAR;
D44H8
Motorola
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 50 MHz; Maximum Collector Current (IC): 10 A; Package Shape: RECTANGULAR;
BCP56-16
Micro Commercial Components
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 100 MHz; Maximum Power Dissipation (Abs): 2 W; Maximum Collector Current (IC): 1 A;
TIP31C
NPN; Configuration: SINGLE; Maximum Collector Current (IC): 3 A; No. of Elements: 1; Maximum Collector-Emitter Voltage: 100 V; Transistor Element Material: SILICON;
Baneasa S A
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): 6 A; Terminal Form: THROUGH-HOLE; Package Style (Meter): FLANGE MOUNT;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
BD679AS
NPN; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): 10 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 4 A;
BD679A
Crimson Semiconductor
NPN; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): 2 MHz; Maximum Collector Current (IC): 4 A; Terminal Form: THROUGH-HOLE;
NPN; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Nominal Transition Frequency (fT): 10 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 4 A;
NPN; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): 4 A; Transistor Application: AMPLIFIER; Maximum Operating Temperature: 150 Cel;
NPN; Configuration: SINGLE; Maximum Collector Current (IC): 4 A; Maximum Collector-Emitter Voltage: 80 V; Transistor Element Material: SILICON; No. of Elements: 1;
Central Semiconductor
NPN; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): 1 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 4 A;
Continental Device India
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 10 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 4 A;
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Collector Current (IC): 4 A; Case Connection: ISOLATED; Terminal Form: THROUGH-HOLE;
Comset Semiconductors
NPN; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): .06 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 4 A;
BD679AG
BD679AG by Onsemi is a NPN Power BJT with 40W power dissipation, 750 min hFE, and 80V VCE. Ideal for amplifier applications due to its Darlington configuration with built-in diode and resistor. Package style is flange mount with through-hole terminals.
BD679
NPN; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): 2 MHz; Maximum Collector Current (IC): 4 A; Maximum VCEsat: 2.5 V;
BD679 by Onsemi is a NPN Power BJT with 40W power dissipation, ideal for amplifier applications. Featuring a Darlington configuration, it has hFE of 750 and can handle up to 80V collector-emitter voltage. This transistor operates at temperatures up to 150°C in a through-hole package style.
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Collector Current (IC): 4 A; No. of Elements: 1; JESD-30 Code: R-PSFM-T3;
BD679AS_NL
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Collector Current (IC): 4 A; Minimum DC Current Gain (hFE): 750; Maximum Collector-Emitter Voltage: 80 V;
Supply Digital Components
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12,000 In-Stock
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