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
BULB128D-BT4 by STMicroelectronics is a powerful NPN BJT designed for switching applications. It features a max power dissipation of 70W, operates up to 150 °C, and supports collector-emitter voltages up to 400V. Ideal for compact electronic designs with surface mount capabilities.
Median Price
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Lakeland Logistics Inc
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Bristol Electronics
Digiode
Anansix
Vyrian
Native Components
$0.222
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Northwest PG Solutions
$0.244
$0.215
IDEA Electronic Components Group
$0.727
$0.654
MKK Technologies
$1.367
DigiPath Technology Company
Authorized Procurement Solutions
Parana Technologies
$0.869
Corphita
Using plastic/epoxy materials ensures durability and resistance to environmental factors, making the transistor reliable in various applications.
NPN transistors are widely used in amplification and switching applications, providing versatile options for circuit design.
The built-in diode facilitates easy interfacing and protection against reverse polarity, simplifying circuit design.
Optimized for switching applications, this transistor can handle high-speed operations suitable for power control in circuits.
Surface mount capability allows for compact designs and automated assembly processes, improving manufacturing efficiency.
The rectangular shape provides efficient space utilization on printed circuit boards (PCBs), making it suitable for high-density applications.
Gull wing terminals enhance solderability and mechanical stability, leading to reliable PCB connections.
A 2-terminal configuration simplifies connections in circuits while maintaining functionality, ideal for minimalistic designs.
With a maximum power dissipation of 70 W, this transistor can effectively manage heat in high-power applications, enhancing reliability.
The small outline package style is designed for space-constrained designs, making it a good fit for compact electronics.
A minimum current gain ensures adequate amplification, making this transistor suitable for a variety of signal processing tasks.
A high maximum operating temperature allows the transistor to function reliably in extreme environments, enhancing its application range.
With a maximum collector-emitter voltage of 400 V, this transistor can handle high voltage conditions, suitable for industrial use.
Silicon is a widely used semiconductor material known for its stability and efficiency, providing reliable performance.
A collector current rating of 4 A ensures this transistor can drive substantial loads, making it suitable for power electronic applications.
Tin-lead terminal finishing ensures good solderability and corrosion resistance, enhancing the durability of the electrical connections.
The single terminal position simplifies circuit layout for easy integration into various electronic designs.
Power Bipolar Junction Transistors (BJT) BULB128D-BT4 attributes and parameters. Explore more Power Bipolar Junction Transistors (BJT) devices from STMicroelectronics
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):
Polarity or Channel Type:
Maximum Power Dissipation (Abs):
Qualification:
Sub-Category:
Surface Mount:
Terminal Finish:
Terminal Form:
Terminal Position:
Transistor Application:
Transistor Element Material:
BULB128D-BT4 Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
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
1N4148
Synsemi
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
2N2222A
Space Power Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
BAV99
Bkc Semiconductors
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
ULN2803A
Motorola
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Terminal Position: DUAL; JESD-30 Code: R-PDIP-T18;
BSS138K-13
Diodes Incorporated
BSS138K-13 by Diodes Inc. is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, operating in enhancement mode. With 3 terminals and 0.31A max drain current, it offers high performance in small outline package style.
87832-1420
Molex
87832-1420 by Molex is a 14-contact board connector with 0.079" pitch, suitable for commercial applications. It features matte tin over nickel finish, glass-filled polyamide insulator, and polarization key for easy assembly. Withstanding voltage of 1400VAC and operating temperature range from -55 to 105°C make it reliable for various electronic devices.
SN65HVD230DR
Texas Instruments
SN65HVD230DR by Texas Instruments is a BICMOS technology interface circuit with 1Mbps data rate, suitable for industrial applications. It operates at 3.3V, has 8 terminals in a small outline package, and can withstand temperatures from -40 to 85°C.
Microchip Technology
LL4148
Continental Device India
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
SMBJ18CA
General Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
M24308/2-1F
Itt Cannon
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Additional Features: STANDARD: MIL-DTL-24308, POLARIZED; Mating Info.: MULTIPLE MATING PARTS AVAILABLE; Filter Feature: NO;
Excel (Suzhou) Semiconductor
Taiwan Semiconductor
Kec
Sensitron Semiconductor
LM317AEMP/NOPB
National Semiconductor
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: SOP; Terminal Form: GULL WING; Qualification Status: Not Qualified; Width: 3.56 mm;
Pro-an Electronic
M39029/58360
Souriau
CONNECTOR ACCESSORY; Associated Military - Specifications: MIL-DTL-38999; Tool Settings: M22520/2-09; Terminal Type: CRIMP; MIL Conformity: YES; Mating Contacts: M39029/56348;
Vishay Intertechnology
Vishay Intertechnology's BAV99 diode features a max forward voltage of 1.3V and a max output current of 0.15A, making it ideal for rectification applications. With a small outline package style and dual terminal position, this series-connected diode is designed for surface mount usage in various electronic circuits with an operating temperature range from -55°C to 150°C.
BSS138
NXP Semiconductors
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; No. of Terminals: 3; Maximum Drain Current (ID): .2 A; Operating Mode: ENHANCEMENT MODE;
2N2905A
Central Semiconductor
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 3 W; Maximum Collector Current (IC): .6 A; Transistor Application: SWITCHING;
TIP125
Crimson Semiconductor
PNP; Configuration: DARLINGTON; Surface Mount: NO; Nominal Transition Frequency (fT): 2 MHz; Maximum Collector Current (IC): 5 A; No. of Terminals: 3;
BD140
STMicroelectronics
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;
JANTXV2N3055
Api Technologies
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 2.5 MHz; Maximum Power Dissipation (Abs): 115 W; Maximum Collector Current (IC): 15 A;
FZT857TA
FZT857TA by Diodes Inc. is a NPN BJT transistor with max. collector-emitter voltage of 300V, max. collector current of 3.5A, and min. DC current gain of 100 hFE. Ideal for switching applications, it operates b/w -55 to 150°C and has a transition frequency of 80MHz in a small outline package shape.
2N3055
2N3055 by Texas Instruments is a NPN BJT transistor with 60V VCE, 15A IC, and 115W power dissipation. Ideal for amplifier applications due to its single configuration and silicon element material. Operates at up to 200°C with a transition frequency of 2.5MHz.
TIP120
Semiconductors
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 5 A; Minimum DC Current Gain (hFE): 1000;
MJD117T4
PNP; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: YES; Nominal Transition Frequency (fT): 25 MHz; Maximum Collector Current (IC): 2 A; Transistor Application: SWITCHING;
BD14016STU
Fairchild Semiconductor
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 12.5 W; Maximum Collector Current (IC): 1.5 A; Transistor Element Material: SILICON;
MJE350
General Transistor
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 20 W; Maximum Collector Current (IC): .5 A; Minimum DC Current Gain (hFE): 30;
TIP47
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 10 MHz; Maximum Power Dissipation (Abs): 40 W; Maximum Collector Current (IC): 1 A;
BDW93C
Samsung
NPN; Configuration: DARLINGTON; Surface Mount: NO; Maximum Power Dissipation (Abs): 80 W; Maximum Collector Current (IC): 12 A; Package Body Material: PLASTIC/EPOXY;
TIP122
NPN; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 5 A; Package Style (Meter): FLANGE MOUNT;
BUV48A
Mospec Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 150 W; Maximum Collector Current (IC): 15 A; Maximum Operating Temperature: 175 Cel;
TIP127
Inchange Semiconductor
PNP; Configuration: DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Power Dissipation (Abs): 65 W; Maximum Collector Current (IC): 5 A; Transistor Element Material: SILICON;
TIP110
Micro Commercial Components
Power Bipolar Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): 2 A; Minimum DC Current Gain (hFE): 1000; Terminal Form: THROUGH-HOLE;
BD140-16
SPC TECHNOLOGY/ MULTICOMP
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): 1.5 A; Minimum DC Current Gain (hFE): 100; Terminal Form: THROUGH-HOLE;
TIP42A
Baneasa S A
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): 6 A; JEDEC-95 Code: TO-220AB; Terminal Position: SINGLE;
TIP127FP
TIP127FP by STMicroelectronics is a PNP power BJT with Darlington configuration, ideal for switching applications. It features a max collector-emitter voltage of 100V, collector current of 5A, and DC current gain of 1000. With a package style of flange mount and max operating temperature of 150°C, it offers efficient performance in various electronic circuits.
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 3 MHz; Maximum Power Dissipation (Abs): 115 W; Maximum Collector Current (IC): 15 A;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
BULB128-1
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 70 W; Maximum Collector Current (IC): 4 A; No. of Elements: 1;
BULB128D-1
NPN; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: NO; Maximum Power Dissipation (Abs): 70 W; Maximum Collector Current (IC): 4 A; Terminal Finish: TIN;
BULB39D
NPN; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Collector Current (IC): 4 A; Package Shape: RECTANGULAR; Terminal Form: GULL WING;
BULB39DT4
NPN; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 70 W; Maximum Collector Current (IC): 4 A; No. of Terminals: 2;
BULB49D-1
NPN; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: NO; Maximum Power Dissipation (Abs): 80 W; Maximum Collector Current (IC): 5 A; Terminal Position: SINGLE;
BULB49DT4
NPN; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 80 W; Maximum Collector Current (IC): 5 A; JESD-30 Code: R-PSSO-G2;
BULB7216-1
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 80 W; Maximum Collector Current (IC): 3 A; Maximum Operating Temperature: 150 Cel;
BULB7216T4
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 80 W; Maximum Collector Current (IC): 3 A; Terminal Finish: MATTE TIN;
BULB742C-1
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 70 W; Maximum Collector Current (IC): 4 A; JEDEC-95 Code: TO-262AA;
BULB742CT4
NPN; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): 70 W; Maximum Collector Current (IC): 4 A; Terminal Form: GULL WING;
Supply Digital Components
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12,000 In-Stock
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