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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BF421RL1 by Onsemi is a PNP BJT with hFE of 50, VCEO of 300V, and IC of 0.5A. Ideal for applications requiring high voltage switching in cylindrical package style with through-hole terminals. Operating up to 150 °C, it suits various electronic designs needing reliable bipolar transistors.
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UHIMA Technologies
Corohmni
This material provides good insulation properties and makes the product suitable for a variety of applications.
PNP transistors are commonly used in amplifier circuits and switching applications, providing versatility in circuit design.
The single configuration simplifies circuit design and integration, making it easier to use in various electronic projects.
The round package shape allows for easy handling and placement on circuit boards.
Through-hole terminals provide secure connections and easy soldering, ensuring reliable performance in electronic circuits.
Having 3 terminals allows for connection to different parts of a circuit, enabling flexibility in circuit design.
The high maximum collector-emitter voltage rating makes this transistor suitable for circuits that require higher voltage handling.
With a maximum collector current of 0.5 A, this transistor can handle moderate current loads in various applications.
The high nominal transition frequency allows for faster switching speeds, making this transistor suitable for high-frequency applications.
Small Signal Bipolar Junction Transistors (BJT) BF421RL1 attributes and parameters. Explore more Small Signal Bipolar Junction Transistors (BJT) devices from Onsemi
Additional Features:
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:
Qualification:
Surface Mount:
Terminal Finish:
Terminal Form:
Terminal Position:
Transistor Element Material:
Nominal Transition Frequency (fT):
BF421RL1 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
1N4148
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
LL4148
Rectron
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148WT
Jiangsu Changjiang Electronics Technology
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Dc Components
International Semiconductor
LM555CN
Harris Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
IRLML6402TRPBF
International Rectifier
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.3 W; Peak Reflow Temperature (C): 260; Package Style (Meter): SMALL OUTLINE;
LM358N
Texas Instruments
LM358N by Texas Instruments is an operational amplifier with 2 functions, offering a max input offset voltage of 9000 uV and a nominal common mode reject ratio of 85 dB. Widely used in commercial applications, it operates at temperatures ranging from 0 to 70 °C and has a unity gain bandwidth of 1000 kHz.
ATMEGA328P-AU
Atmel
MICROCONTROLLER, RISC; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 32; Package Code: TQFP; Package Shape: SQUARE;
Shanghai Lunsure Electronic Technology
RECTIFIER DIODE; Surface Mount: YES; Maximum Forward Voltage (VF): 1 V; Maximum Non Repetitive Peak Forward Current: .5 A; No. of Elements: 1; Maximum Reverse Recovery Time: .004 us;
SS14
Jinan Jingheng Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BAV99
Infinex
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; Package Shape: ROUND;
LM555CM
Onsemi
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
National Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .5 A;
LM2931AZ-5.0RPG
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.
SMBJ18CA
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
C0603C104K5RACTU
KEMET Corporation
KEMET C0603C104K5RACTU is a ceramic capacitor with 0.1uF capacitance and 50V URdc. It has X7R temperature characteristics, -55 to 125 °C operating range, and ±10% tolerance. Ideal for SMT applications requiring compact size and reliable performance in various electronic circuits.
EPCS4SI8N
Intel
EPCS4SI8N by Intel is a small outline flash memory with 512Kx8 organization, operating at 3.3V. It features a max clock frequency of 40MHz and endurance of 100k write/erase cycles. Ideal for industrial applications requiring configuration memory with serial interface and low standby current consumption.
Crimson Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
MMBT3904
Bytesonic Electronics
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .225 W; Maximum Collector Current (IC): .2 A;
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.
Space Power Electronics
BC846B
Kodenshi Auk
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 150 MHz; Maximum Power Dissipation (Abs): .2 W; Maximum Collector Current (IC): .1 A;
2N2219A
Baneasa S A
Small Signal Bipolar Transistors; Configuration: SINGLE; Surface Mount: NO; JESD-30 Code: O-MBCY-W3; Package Body Material: METAL; Terminal Form: WIRE;
BC547BTA
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .1 A;
BC817-25
Micro Commercial Components
Small Signal Bipolar Transistors; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 100 MHz; Maximum Power Dissipation (Abs): .31 W; Maximum Collector Current (IC): .5 A;
2N3904
Continental Device India
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .35 W; Maximum Collector Current (IC): .2 A;
BC547B
Secos
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 150 MHz; Maximum Collector Current (IC): .1 A; No. of Elements: 1;
JANTX2N2222AUA
Optek Technology
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
MMBT3906LT1G
MMBT3906LT1G by Onsemi is a PNP BJT with VCEsat of 0.4V, hFE of 30, and fT of 250MHz. Ideal for small signal applications in electronics due to its low power dissipation, high transition frequency, and compact SOT-23 package. Suitable for use in temperature-sensitive environments with an operating range from -65°C to 150°C.
BC846-B
Kec
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .1 A; Maximum Collector-Emitter Voltage: 65 V;
BC547ATA
BC547ATA by Onsemi is a NPN BJT transistor with a max collector-emitter voltage of 45V and max current of 0.1A, ideal for switching applications. With a min DC current gain of 110 and max power dissipation of 0.625W, it operates at up to 150°C making it suitable for various electronic circuits in different industries. The package style is cylindrical with matte tin finish and through-hole terminals.
MMBT3906
Yangzhou Yangjie Electronics
PNP; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 250 MHz; Maximum Collector Current (IC): .2 A; No. of Terminals: 3;
Siemens
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .3 W; Maximum Collector Current (IC): .1 A;
SBC846BLT1G
SBC846BLT1G by Onsemi is a NPN BJT transistor with max VCEsat of 0.6V, hFE of 200, and fT of 100MHz. Ideal for small signal applications in automotive electronics due to AEC-Q101 standard compliance and max operating temp of 150°C.
2N3906
International Devices
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .35 W; Maximum Collector Current (IC): .2 A;
BC856BW,115
NXP Semiconductors
BC856BW,115 by NXP Semiconductors is a PNP BJT transistor for switching applications. It has a max VCEsat of 0.65V and min hFE of 220. With a max operating temperature of 150°C, it is suitable for small outline packages in surface mount configurations.
2N2907A
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 200 MHz; Maximum Power Dissipation (Abs): .4 W; Maximum Collector Current (IC): .6 A;
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BF422
Small Signal Bipolar Transistors; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .1 A; JESD-30 Code: O-PBCY-T3;
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .05 A;
New Jersey Semiconductor Products
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .1 A; Terminal Position: BOTTOM;
Motorola
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Power Dissipation (Abs): .8 W; Maximum Collector Current (IC): .5 A;
General Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .05 A; Transistor Application: AMPLIFIER;
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .1 A; Minimum DC Current Gain (hFE): 50;
Toshiba
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 100 MHz; Maximum Power Dissipation (Abs): .8 W; Maximum Collector Current (IC): .05 A;
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Power Dissipation (Abs): .83 W; Maximum Collector Current (IC): .05 A;
Unisonic Technologies
Micro Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Power Dissipation (Abs): .8 W; Maximum Collector Current (IC): .02 A;
Itt Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; No. of Terminals: 3; Qualification: Not Qualified;
Transys Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Power Dissipation (Abs): .8 W; Maximum Collector Current (IC): .05 A;
BF421RLRA
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .5 A; Package Body Material: PLASTIC/EPOXY;
BF420ZL1
BF420ZL1G
BF421RLRE
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .5 A; Terminal Finish: TIN LEAD;
BF421RLRP
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 60 MHz; Maximum Collector Current (IC): .5 A; Qualification: Not Qualified;
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