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.
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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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PN4249/D74Z by National Semiconductor is a PNP BJT transistor with hFE of 100, IC of 0.1A, and fT of 40MHz. Ideal for amplifier applications due to its single configuration and cylindrical package shape with through-hole terminals.
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The use of plastic/epoxy material in the package body makes the transistor lightweight and durable, suitable for various applications.
The PNP polarity type allows for easy integration into PNP transistor circuits, making it compatible with a wide range of amplifier applications.
Designed specifically for amplifier applications, this transistor offers reliable performance and high-quality amplification capabilities.
The three terminals allow for simple and convenient connections, making it easy to integrate into circuit designs.
With a minimum DC current gain of 100, this transistor provides consistent and reliable amplification of input signals.
The maximum collector current of 0.1 A ensures that the transistor can handle a sufficient amount of current for most amplifier applications.
With a nominal transition frequency of 40 MHz, this transistor is capable of operating at high frequencies, making it suitable for a wide range of amplifier applications.
Small Signal Bipolar Junction Transistors (BJT) PN4249/D74Z attributes and parameters. Explore more Small Signal Bipolar Junction Transistors (BJT) devices from National Semiconductor
Additional Features:
Maximum Collector Current (IC):
Configuration:
Minimum DC Current Gain (hFE):
JEDEC-95 Code:
JESD-30 Code:
No. of Elements:
No. of Terminals:
Package Body Material:
Package Shape:
Package Style (Meter):
Polarity or Channel Type:
Qualification:
Surface Mount:
Terminal Form:
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Transistor Application:
Transistor Element Material:
Nominal Transition Frequency (fT):
PN4249/D74Z Transistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California. The company produced power management integrated circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions. National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial and test and measurement applications.On September 23, 2011, the company formally became part of Texas Instruments as the "Silicon Valley" division.
LM317T
Tt Electronics Plc
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Qualification Status: Not Qualified; JESD-30 Code: R-PSFM-T3;
SS14
Cheng-yi Electronic
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
261
Micronetics
Other Interface ICs; Temperature Grade: MILITARY; Terminal Form: FLAT; No. of Terminals: 14; Package Code: DFP; Package Shape: SQUARE;
1N4148
Continental Device India
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
SS495ASP
Micro Switch
The Micro Switch SS495ASP is an analog circuit IC with a supply voltage range of 4.5V to 10.5V, suitable for automotive applications. Its package body material is plastic/epoxy, and it has a rectangular shape with three terminals. Operating temperature ranges from -40°C to 125°C, making it ideal for various automotive sensor and control systems.
SMBJ18CA
Littelfuse
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WSF-7
Diodes Incorporated
1N4148WSF-7 by Diodes Inc. is a single silicon rectifier diode with max output current of 0.25A and max reverse voltage of 100V. It operates b/w -55 to 150°C, has a small outline package style, and is suitable for surface mount applications in various electronic circuits.
FDLL4148
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
B340A-13-F
SPC TECHNOLOGY/ MULTICOMP
2N2222A
Central Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Transistor Application: SWITCHING; Transistor Element Material: SILICON;
BAV99
Taitron Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LM358DT
ROHM
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: LSOP; Package Shape: RECTANGULAR;
Itt Components
RECTIFIER DIODE; Surface Mount: NO; Config: SINGLE; Maximum Operating Temperature: 200 Cel; Maximum Repetitive Peak Reverse Voltage: 100 V; Maximum Output Current: .15 A;
LM107H
Advanced Micro Devices
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Maximum Bias Current (IIB) @25C: .075 uA;
LM317LMX/NOPB
Texas Instruments
LM317LMX/NOPB by Texas Instruments is an adjustable positive single output standard regulator with a max input-output voltage differential of 40V. It operates in temperatures ranging from -40°C to 125°C and has a max output current of 0.1A, making it suitable for various applications requiring precise voltage regulation.
Vishay Sprague
NPN; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; JEDEC-95 Code: TO-18; Maximum Collector-Emitter Voltage: 40 V;
LM107H/883
LM107H/883 by Texas Instruments is a MIL-STD-883 compliant operational amplifier with 3000uV max input offset voltage, 80dB common mode reject ratio, and 250kHz unity gain bandwidth. Ideal for military applications due to its -55 to 125 °C operating temperature range and robust metal package body material.
KSZ9031RNXIC
Micrel
ETHERNET TRANSCEIVER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 48; Package Code: HVQCCN; Package Shape: SQUARE;
Electronic Devices
2N7002
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Time At Peak Reflow Temperature (s): 30; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR;
BC847BVN-7
BC847BVN-7 by Diodes Inc. is a small signal BJT with NPN and PNP polarity, featuring separate 2-element configuration. With a max power dissipation of 0.15W, it operates at up to 150°C and has a max collector-emitter voltage of 45V. Ideal for applications requiring high DC current gain and transition frequency up to 300MHz in compact designs.
BC846B
Unisonic Technologies
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .31 W; Maximum Collector Current (IC): .1 A;
2N2219A
Micro Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .8 W; Maximum Collector Current (IC): .8 A;
BC817-40
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 100 MHz; Maximum Power Dissipation (Abs): .33 W; Maximum Collector Current (IC): .8 A;
BC817-40WT1G
Onsemi
BC817-40WT1G by Onsemi is a NPN BJT transistor with hFE of 40, Vce of 45V, and fT of 100MHz. Ideal for small signal applications in electronics due to its high transition frequency and low collector current rating. Its Gull Wing terminals and small outline package make it suitable for surface mount PCB designs.
2N2905A
New Jersey Semiconductor Products
PNP; Configuration: SINGLE; Nominal Transition Frequency (fT): 200 MHz; Maximum Collector Current (IC): .6 A; Maximum Collector-Emitter Voltage: 60 V; No. of Elements: 1;
BC856BLT1G
BC856BLT1G by Onsemi is a PNP BJT with 3 terminals, operating at temperatures from -55 to 150°C. It has a max collector-emitter voltage of 65V and max collector current of 0.1A. With a transition frequency of 100MHz, it's ideal for small signal applications in electronics requiring high DC current gain.
BC856B,215
Nexperia
PNP; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 100 MHz; Maximum Collector Current (IC): .1 A; Maximum Operating Temperature: 150 Cel;
2N3904TF
2N3904TF by Onsemi is a NPN bipolar junction transistor with max. collector-emitter voltage of 40V and max. collector current of 0.2A. It has a min. DC current gain of 30, making it suitable for switching applications with a nominal transition frequency of 300MHz. The package style is cylindrical with matte tin terminal finish, ideal for through-hole mounting in various electronic circuits.
BC846B,235
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 100 MHz; Maximum Collector Current (IC): .1 A; No. of Terminals: 3;
2N3904
Panjit International
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .2 A;
2N3906
Kodenshi Auk
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .625 W; Maximum Collector Current (IC): .2 A;
PMBT2369,215
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 500 MHz; Maximum Collector Current (IC): .2 A; Peak Reflow Temperature (C): 260;
BC547C
Vishay Semiconductors
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .1 A; Minimum DC Current Gain (hFE): 420;
MMBT3906
General Semiconductor
PNP; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 250 MHz; Maximum Collector Current (IC): .2 A; JESD-30 Code: R-PDSO-G3;
MMBT2222A
Rectron
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 300 MHz; Terminal Form: GULL WING; Package Shape: RECTANGULAR;
Loras Industries
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .35 W; Maximum Collector Current (IC): .2 A;
BC847CW,115
NXP Semiconductors
NXP Semiconductors' BC847CW,115 is a NPN BJT transistor for switching applications. With VCEsat of 0.6V and hFE of 420, it operates at max temp of 150°C. Its small outline package with Gull Wing terminals makes it suitable for surface mount designs.
2N2907A
Crystalonics
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 200 MHz; Maximum Power Dissipation (Abs): .4 W; Maximum Collector Current (IC): .6 A;
BC847C
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;
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PN4249
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Transistor Element Material: SILICON; Maximum Collector-Emitter Voltage: 60 V;
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .05 A;
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 100 MHz; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .05 A;
Crimson Semiconductor
PNP; Configuration: SINGLE; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector-Emitter Voltage: 60 V; Transistor Element Material: SILICON; No. of Elements: 1;
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .1 A;
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .5 A; Terminal Position: BOTTOM;
National Semiconductor
Nte Electronics
PN4249D74Z
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .5 A; Package Shape: ROUND;
PN4250
PN4250A
PN4275
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 400 MHz; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .1 A;
PN4249/D11Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; Terminal Position: BOTTOM;
PN4249/D28Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; Qualification: Not Qualified;
PN4249/D29Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; JESD-30 Code: O-PBCY-T3;
PN4249/D26Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; Package Shape: ROUND;
PN4249/D27Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; No. of Terminals: 3;
PN4249/D75Z
PNP; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 40 MHz; Maximum Collector Current (IC): .1 A; Package Body Material: PLASTIC/EPOXY;
PN4249D75Z
PNP; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): .6 W; Maximum Collector Current (IC): .5 A; Maximum Collector-Emitter Voltage: 60 V;
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