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
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .36 W; Maximum Inter-base Voltage: 25 V; Transistor Element Material: SILICON;
Median Price
$15.000
Lifecycle Status
Suppliers In-Stock
14
In-Stock Inventory
1k+
Ace Electronics
1+ parts
$5.000
100+ parts
-
1k+ parts
10k+ parts
TEDSS.com
American Microsemiconductor Inc.
$825.000
Vyrian
Digiode
PUI
QIE Inc.
Tech-Mark Corp
ES Components
Lakeland Logistics Inc
Extreme Components
Bristol Electronics
Electronic Expediters
ECAB
Native Components
$1.308
Parana Technologies
$1.621
$2.245
DigiPath Technology Company
$1.785
$1.642
ChromeModa Solutions
$1.821
$1.493
IDEA Electronic Components Group
$1.639
Corohmni
AZTECH Wire
$18.534
One Stop Electronics
$62.050
Problanco Electronics
TANS Electronics
Corphita
Northwest PG Solutions
SupplyDigital Components
Glotronic Ltd.
Kulean Microsystems
UHIMA Technologies
Assy Fe
Unijunction Transistors (UFT) 2N4949 attributes and parameters. Explore more Unijunction Transistors (UFT) devices from Onsemi
Case Connection:
Configuration:
Maximum Emitter Current:
Maximum Inter-base Voltage:
Maximum Intrinsic Stand-off Ratio:
Minimum Intrinsic Stand-off Ratio:
JEDEC-95 Code:
JESD-30 Code:
No. of Elements:
No. of Terminals:
Maximum Operating Temperature:
Minimum Operating Temperature:
Package Body Material:
Package Shape:
Package Style (Meter):
Maximum Peak Point Current:
Peak Reflow Temperature (C):
Maximum Power Dissipation (Abs):
Qualification:
Maximum Static Inter-Base Resistance:
Minimum Static Inter-Base Resistance:
Sub-Category:
Surface Mount:
Terminal Form:
Terminal Position:
Maximum Time At Peak Reflow Temperature (s):
Transistor Application:
Transistor Element Material:
Minimum Valley Point Current:
2N4949 Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
NSN
5961-00-497-0988, 5961004970988, 5961-00-761-4504, 5961007614504, 5961-99-118-9313, 5961991189313
NIIN
004970988, 007614504, 991189313
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
USBLC6-2SC6
STMicroelectronics
USBLC6-2SC6 by STMicroelectronics is a unidirectional transient voltage suppressor diode with a breakdown voltage of 6V. It has a max clamping voltage of 17V and operates in temperatures ranging from -40 to 125°C. This device, with dual terminals and matte tin finish, is ideal for protecting sensitive electronics from voltage spikes in various applications.
BAV99
Bkc Semiconductors
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LL4148
Vishay Intertechnology
Vishay Intertechnology's LL4148 diode features a max reverse recovery time of 0.004 us, forward voltage of 1 V, and output current of 0.15 A. Ideal for rectification applications in electronics due to its high efficiency and low power dissipation capabilities.
2N2222A
Shanghai Lunsure Electronic Technology
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; JESD-30 Code: O-MBCY-W3;
LM358N
Freescale Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
Forward International Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .6 A;
Jgd Semiconductors
RECTIFIER DIODE; Surface Mount: YES; Maximum Reverse Recovery Time: .006 us; Maximum Repetitive Peak Reverse Voltage: 70 V; Maximum Forward Voltage (VF): 1 V; Maximum Operating Temperature: 150 Cel;
1N4148
Gulf Semiconductor
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Toshiba
Daco Semiconductor
LM358MX
Onsemi
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
2N7002
Supertex
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; No. of Elements: 1; Maximum Feedback Capacitance (Crss): 5 pF;
SMBJ18CA
Rectron
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
CRGCQ0805F10R
TE Connectivity
TE Connectivity's CRGCQ0805F10R is a 10 ohm fixed resistor with 1% tolerance and 400 ppm/°C temperature coefficient. It is a surface mount thick film resistor in an 0805 package, suitable for applications requiring precise resistance values in compact electronic circuits.
General Semiconductor
Leshan Radio
Raytheon Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Minimum DC Current Gain (hFE): 100; Maximum Turn On Time (ton): 35 ns;
M39029/58-360
Fct Electronic
CONNECTOR ACCESSORY; IEC Conformity: NO; Alternate Contact Sources: MILITARY; MIL Conformity: YES; Contact Gender: MALE; MIL-Connector Accessory Name: CONTACT;
CRCW06030000Z0EAHP
Vishay Intertechnology's CRCW06030000Z0EAHP is a 0 ohm jumper resistor with METAL GLAZE/THICK FILM tech. Operating temp range -55 to 155 °C, it's SMT package style makes it ideal for automotive applications meeting AEC-Q200 standard.
1N4148WT
1N4148WT by Onsemi is a single rectifier diode with a max output current of 0.3A and forward voltage of 0.72V. It has a small outline package style, matte tin terminal finish, and operates at temperatures up to 150°C. Ideal for applications requiring fast reverse recovery time such as power supplies and signal demodulation circuits.
2N4870
Motorola
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Inter-base Voltage: 35 V; Minimum Valley Point Current: 2 mA;
2N3980
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .36 W; Maximum Emitter Current: 50 mA; Minimum Operating Temperature: -65 Cel;
2N2646
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Minimum Valley Point Current: 4 mA; Minimum Operating Temperature: -65 Cel; JESD-609 Code: e0;
NTE6400A
Nte Electronics
NTE6400A by Nte Electronics is a Unijunction Transistor (UFT) with 3 terminals, made of silicon. It has a max emitter current of 50 mA and can handle up to 55 V inter-base voltage. Ideal for switching applications due to its low static inter-base resistance and high intrinsic stand-off ratio.
2N2647
Texas Instruments
2N2647 by Texas Instruments is a Unijunction Transistor (UFT) with max emitter current of 50mA, max inter-base voltage of 35V, and max power dissipation of 0.3W. It is used for switching applications due to its silicon element material and single configuration.
2N2417B
The Onsemi 2N2417B is a Unijunction Transistor with max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.3W. It is used in applications requiring a single configuration transistor for temperature ranges b/w -65 to 140 °C.
NTE6410
NTE6410 by Nte Electronics is a plastic/epoxy unijunction transistor with single configuration for switching applications. It has a max emitter current of 50mA, max inter-base voltage of 35V, and max power dissipation of 0.3W. Ideal for low-power switching circuits due to its compact cylindrical package design and silicon element material.
2N494B
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Minimum Intrinsic Stand-off Ratio: .62; Transistor Application: SWITCHING;
2N2160
2N2160 by Texas Instruments is a Unijunction Transistor (UFT) with max emitter current of 70mA, max inter-base voltage of 35V, and max power dissipation of 0.45W. It is used for switching applications due to its silicon element material and operating temperature range from -65°C to 150°C.
2N4946
New Jersey Semiconductor Products
Unijunction Transistors; Configuration: SINGLE; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb); Transistor Element Material: SILICON;
NXP Semiconductors
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Package Shape: ROUND; No. of Elements: 1; Package Body Material: METAL;
Boca Semiconductor
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Minimum Operating Temperature: -55 Cel; Minimum Valley Point Current: 2 mA; Maximum Operating Temperature: 125 Cel;
2N4852
2N4852 by Texas Instruments is a Unijunction Transistor for switching applications. It has a max emitter current of 50mA, operating temperature range from -65 to 125°C, and max power dissipation of 0.3W. With a package style of cylindrical and terminal form wire, it offers reliable performance in various electronic circuits.
2N2422A
The Onsemi 2N2422A is a Unijunction Transistor with max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.3W. It is used in applications requiring precise triggering and timing control such as pulse generators and thyristor firing circuits.
2N2419A
The Onsemi 2N2419A is a Unijunction Transistor with max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.3W. It is used in applications requiring a single configuration transistor for low to medium power operations at temperatures ranging from -65 °C to 140°C.
2N2421B
The Onsemi 2N2421B is a Unijunction Transistor with max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.3W. It is used in applications requiring a single configuration UFT for temperature range -65 to 140 °C.
2N491A
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Time At Peak Reflow Temperature (s): NOT SPECIFIED; Qualification: Not Qualified;
W4893
The Onsemi W4893 is a Unijunction Transistor with key specs: Min. Intrinsic Stand-off Ratio 0.55, Max. Static Inter-Base Resistance 12 kohm, and Min. Valley Point Current 2 mA. It is used in applications requiring precise triggering and timing control in electronic circuits.
Philips Components
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Package Style (Meter): CYLINDRICAL; Package Shape: ROUND; JEDEC-95 Code: TO-92;
2N490B
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Transistor Element Material: SILICON; Package Shape: ROUND;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
2N494
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Emitter Current: 70 mA; JESD-30 Code: O-MBCY-W3;
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Package Body Material: METAL; Maximum Inter-base Voltage: 65 V;
2N491B
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Qualification: Not Qualified; Minimum Operating Temperature: -65 Cel;
2N4947
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .36 W; Maximum Intrinsic Stand-off Ratio: .69; Maximum Operating Temperature: 200 Cel;
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; JEDEC-95 Code: TO-5; Maximum Emitter Current: 70 mA;
2N494A
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; No. of Elements: 1; Maximum Static Inter-Base Resistance: 9.1 kohm;
2N490
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; JESD-30 Code: O-MBCY-W3; Package Body Material: METAL;
2N492
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Minimum Valley Point Current: 8 mA; JEDEC-95 Code: TO-5;
2N493A
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Static Inter-Base Resistance: 6.8 kohm; Maximum Time At Peak Reflow Temperature (s): NOT SPECIFIED;
2N492B
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Static Inter-Base Resistance: 9.1 kohm; Qualification: Not Qualified;
2N492A
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Package Shape: ROUND; Maximum Emitter Current: 70 mA;
2N4948
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .36 W; Peak Reflow Temperature (C): NOT SPECIFIED; Minimum Operating Temperature: -65 Cel;
2N493
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; No. of Elements: 1; JEDEC-95 Code: TO-5;
2N4949
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .36 W; Maximum Static Inter-Base Resistance: 12 kohm; Minimum Intrinsic Stand-off Ratio: .74;
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Intrinsic Stand-off Ratio: .75; Maximum Inter-base Voltage: 65 V; Maximum Peak Point Current: 6 mA;
2N493B
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Maximum Intrinsic Stand-off Ratio: .75; Minimum Operating Temperature: -65 Cel;
2N490A
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Minimum Intrinsic Stand-off Ratio: .51; Maximum Peak Point Current: 12 mA;
2N491
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; JESD-30 Code: O-MBCY-W3; JEDEC-95 Code: TO-5;
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
Quantity
12,000 In-Stock
Total price ≈ $80,197.29
© 2023 All rights reserved