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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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;
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Unijunction Transistors (UFT) 2N4870 attributes and parameters. Explore more Unijunction Transistors (UFT) devices from Boca Semiconductor
Maximum Emitter Current:
Maximum Inter-base Voltage:
Maximum Intrinsic Stand-off Ratio:
Minimum Intrinsic Stand-off Ratio:
Maximum Operating Temperature:
Minimum Operating Temperature:
Maximum Peak Point Current:
Maximum Power Dissipation (Abs):
Maximum Static Inter-Base Resistance:
Minimum Static Inter-Base Resistance:
Sub-Category:
Surface Mount:
Minimum Valley Point Current:
2N4870 Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
NSN
5961-00-493-5784, 5961004935784
NIIN
004935784
Boca Semiconductor Corp., a leading global supplier of Discrete Semiconductor Products, specializes in discontinued and end of life products. Our product strengths are: Rectifiers SCR's Transistors Unijunctions Boca Semiconductor Corp. is committed to the highest levels of customer service and support. To better serve our ever-expanding client base we maintain leadership in the manufacture of a comprehensive range of transistors in conventional leaded insertion mount and surface mount packages. Additionally, as we strive to meet and exceed our client expectations, we are proud that our factories are ISO9002 certified. Our niche is the contract manufacturing of transistors, diodes, voltage regulators, stud base rectifiers, power mosfets that have been discontinued by major manufacturers like Motorola, Fairchild, Texas Instrument and National Semiconductor. Specialized Services from BSC: Custom Built/Designed components and OEM Services Available. Tell us how we can help. Custom testing & certification of electronic components. What are your requirements? We specialize in components for power supplies, electronic measurement & calibration, and fire alarm controls.
BAV99
Microsemi
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
FDC5614P
Fairchild Semiconductor
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.6 W; Transistor Application: SWITCHING; Maximum Drain Current (ID): 3 A;
2N2222A
Comset Semiconductors
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
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;
LL4148
Taiwan Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
LM317T
National Semiconductor
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Package Shape: RECTANGULAR; Minimum Input-Output Voltage Differential: 3 V;
AB26TRB-32.768KHZ--T
Abracon
AB26TRB-32.768KHZ--T by Abracon is a crystal oscillator with 20 ppm frequency tolerance, 126% stability, and 35000 ohm series resistance. Ideal for applications requiring 0.032768 MHz nominal frequency in surface mount configurations.
STM32H753ZIT6
STMicroelectronics
STM32H753ZIT6 by STMicroelectronics is a 32-bit microcontroller with Cortex-M7 CPU, offering 20-Ch 16-Bit ADC and 2-Ch 12-Bit DAC channels. With a clock frequency of up to 48 MHz, it is ideal for industrial applications requiring CAN, Ethernet, and USB connectivity. This microcontroller operates b/w -40°C to +85°C temperature range.
BSS123NH6327XTSA1
Infineon Technologies
Infineon BSS123NH6327XTSA1 is a N-CHANNEL FET with 100V DS breakdown voltage, 0.19A ID, and 6 ohm RDS(on). Ideal for small outline applications requiring high drain current and low on-resistance. AEC-Q101 compliant for automotive use.
MBRS130LT3G
Onsemi
MBRS130LT3G by Onsemi is a Schottky rectifier diode with a max output current of 1A and forward voltage of 0.445V. It operates b/w -65 to 125°C, has a reverse test voltage of 30V, and is ideal for power applications due to its small outline package style.
M39029/58360
Souriau-sunbank Connection Technologies
Souriau-sunbank's M39029/58360 is a MIL-Spec backshell with CRIMP contact type and male gender. It conforms to MIL-DTL-38999 standards, mates with M39029/56348 contacts, and requires M81969/14-01 insertion tools. Ideal for military applications requiring reliable crimp terminals.
First Components International
1552200253
Molex
WIRE AND CABLE;
1N4148
Terry Semiconductor
RECTIFIER DIODE; Surface Mount: NO; Maximum Reverse Recovery Time: .004 us; Config: SINGLE; JESD-609 Code: e0; Maximum Repetitive Peak Reverse Voltage: 100 V;
BAV99WT1G
LM107H
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Code: TO-99; Package Shape: ROUND;
ULN2803A
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Package Body Material: PLASTIC/EPOXY; Qualification: Not Qualified;
Itt Semiconductor
U.FL-R-SMT-1(10)
Hirose Electric
U.FL-R-SMT-1(10) by Hirose Electric is a RF connector with 50 ohm impedance, 0.05 dB insertion loss, and 8 GHz operating frequency. Ideal for board mounting in commercial applications, it features gold termination finish, liquid crystal polymer insulator, and 200VAC dielectric voltage resistance.
2N4893
Texas Instruments
2N4893 by Texas Instruments is a Unijunction Transistor (UFT) with a max emitter current of 50mA and max power dissipation of 0.3W. It is commonly used for switching applications due to its single configuration and silicon element material, operating in temperatures ranging from -55°C to 150°C.
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.
2N4870
Silicon Group
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Peak Point Current: 5 mA; Minimum Static Inter-Base Resistance: 4 kohm; Maximum Intrinsic Stand-off Ratio: .75;
2N490B
2N490B by Texas Instruments is a Unijunction Transistor (UFT) with max emitter current of 70mA and max power dissipation of 0.45W. It is used for switching applications, featuring a package shape of ROUND and terminal form WIRE. Operating temperature ranges from -65 to 140 °C.
2N2646
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Emitter Current: 50 mA; Maximum Peak Point Current: 5 mA; Maximum Inter-base Voltage: 35 V;
Swampscott Electronics
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Terminal Form: WIRE; Maximum Operating Temperature: 125 Cel;
JAN2N491A
JAN2N491A by Texas Instruments is a Unijunction Transistor with 3 terminals. It has a min valley point current of 8mA and max peak point current of 12mA. This transistor, made of silicon, is commonly used in applications requiring isolated case connection.
NTE6410
Nte Electronics
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.
2N489A
2N489A by Texas Instruments is a Unijunction Transistor for switching applications. It has a max emitter current of 70mA, operating temperature range from -65 to 140°C, and max power dissipation of 0.45W. With a package style of cylindrical and isolated case connection, it offers reliable performance in various electronic circuits.
Asi Semiconductor
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; JEDEC-95 Code: TO-18; No. of Elements: 1;
2N4948
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Peak Point Current: 2 mA; Maximum Static Inter-Base Resistance: 12 kohm; Transistor Element Material: SILICON;
2N491B
2N491B by Texas Instruments is a Unijunction Transistor for switching applications. It has a max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.45W. Ideal for low-power switching circuits in various electronic devices.
2N491A
The Texas Instruments 2N491A is a Unijunction Transistor for switching applications. It has a max emitter current of 70mA, operating temperature range of -65 to 140°C, and max power dissipation of 0.45W. With a package style of cylindrical and isolated case connection, it offers reliable performance in various electronic circuits.
2N2420B
The Onsemi 2N2420B 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 switching control like pulse generators and timing circuits.
2N4853
2N4853 by Texas Instruments is a Unijunction Transistor 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 single configuration and silicon element material.
2SH20
Toshiba
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .25 W; Maximum Inter-base Voltage: 55 V; Maximum Peak Point Current: 3.5 mA; Terminal Finish: Tin/Lead (Sn/Pb);
Philips Components
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Package Style (Meter): CYLINDRICAL; Package Shape: ROUND; JEDEC-95 Code: TO-92;
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.
2N493B
2N493B by Texas Instruments is a Unijunction Transistor for switching applications. It has a max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.45W. With a package style of cylindrical and terminal form wire, it operates b/w -65 to 140°C effectively.
Harris Semiconductor
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Intrinsic Stand-off Ratio: .75; Maximum Emitter Current: 50 mA; Maximum Peak Point Current: 5 mA;
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Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Emitter Current: 50 mA; Terminal Form: WIRE;
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;
General Electric Solid State
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Operating Temperature: 125 Cel; Minimum Intrinsic Stand-off Ratio: .56; Minimum Static Inter-Base Resistance: 4 kohm;
Semitronics
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Qualification: Not Qualified; No. of Terminals: 3;
Crimson Semiconductor
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Inter-base Voltage: 35 V; Transistor Element Material: SILICON;
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Package Body Material: PLASTIC/EPOXY; Minimum Operating Temperature: -55 Cel;
Central Semiconductor
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Qualification: Not Qualified; Package Body Material: PLASTIC/EPOXY;
Space Power Electronics
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; JESD-30 Code: O-PBCY-W3; Minimum Operating Temperature: -55 Cel;
New Jersey Semiconductor Products
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Terminal Form: THROUGH-HOLE; Transistor Application: SWITCHING;
Semiconductors
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Static Inter-Base Resistance: 9.1 kohm; Minimum Intrinsic Stand-off Ratio: .56; Maximum Operating Temperature: 125 Cel;
2N489
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .45 W; Minimum Operating Temperature: -65 Cel; JEDEC-95 Code: TO-5;
2N4891
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; JESD-30 Code: O-PBCY-W3; Maximum Time At Peak Reflow Temperature (s): NOT SPECIFIED;
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Minimum Static Inter-Base Resistance: 4.7 kohm; Maximum Operating Temperature: 125 Cel;
2N4892
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Minimum Static Inter-Base Resistance: 4 kohm; Package Style (Meter): CYLINDRICAL;
2N4851
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Emitter Current: 50 mA; No. of Elements: 1;
Unijunction Transistors; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Package Body Material: METAL; Maximum Intrinsic Stand-off Ratio: .85;
2N4871
Unijunction Transistors; Surface Mount: NO; Maximum Power Dissipation (Abs): .3 W; Maximum Inter-base Voltage: 35 V; Minimum Valley Point Current: 4 mA; Maximum Peak Point Current: 5 mA;
Boca Semiconductor
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