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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Allegro MicroSystems A4491EESTR-T is a 20-terminal switching regulator with a max output current of 1.5A and a control mode of CURRENT-MODE. Operating b/w -40 to 85°C, it is ideal for industrial applications requiring a compact chip carrier package with surface mount capability and BUCK switcher configuration.
Median Price
$1.380
Lifecycle Status
Suppliers In-Stock
10
In-Stock Inventory
1k+
Rochester
1+ parts
$0.650
100+ parts
$0.640
1k+ parts
$0.620
10k+ parts
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Chip1Stop
Arrow
$1.691
$0.857
DigiKey
$2.250
$1.355
$1.239
Verical
Chip Stock
Cyclops Electronics Ltd
NAC Semi
$1.340
VNN
Nova Conductors
Ampacity Inc.
$0.550
Microchip USA
$6.240
iodParts Technologies Inc.
Aranea Global
Authorized Procurement Solutions
Continental Prestige Electronics
Argo Parts USA
Kepictronics
Eastek
$1.180
Perfect Parts
Allows for easy and efficient assembly onto circuit boards.
Sleek and compact design for space-saving in electronic devices.
Provides multiple connection points for flexibility in circuit design.
Can handle high temperatures, suitable for industrial applications.
Efficient current regulation for stable and reliable performance.
Compatible with standard 12V power sources.
Capable of delivering sufficient current for various electronic components.
Switching Regulators & Controllers A4491EESTR-T attributes and parameters. Explore more Switching Regulators & Controllers devices from Allegro MicroSystems
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A4491EESTR-T Other Function Semiconductors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8542.39.00.01
SB
8542.39.00.00
PCN Packaging - Tape Change 27/Jan/2023
With more than 30 years of experience developing advanced semiconductor technology and application-specific algorithms, Allegro is a global leader in power and sensing solutions for motion control and energy-efficient systems. Through our innovations in e-Mobility, Clean Energy, and Automation, we are helping move the world toward a safer, more sustainable future. Each year we ship over one billion units into these applications to support our 10,000+ customers around the globe, including over 50 automotive OEMs. Our global engineering, manufacturing and support, combined with our agility, make Allegro a trusted partner to both large enterprises and regional market leaders worldwide.
LL4148
Good-ark Electronics
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148
RECTIFIER DIODE; Surface Mount: NO; No. of Elements: 1; Maximum Non Repetitive Peak Forward Current: .5 A; Maximum Forward Voltage (VF): 1 V; No. of Phases: 1;
LM7805CT
Onsemi
FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %;
SS14
Rfe International
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WS
Rochester Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BSS84-7-F
Diodes Incorporated
Diodes Inc. BSS84-7-F is a P-channel FET with 50V DS breakdown voltage, 0.13A max drain current, and 10 ohm RDS(on). Ideal for switching applications, it features a single configuration with built-in diode in a small outline package. Operating in enhancement mode at up to 150°C, it has Gull Wing terminals and matte tin finish.
2N2222A
North American Philips Discrete Products Div
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Digitron Semiconductors
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
CRCW04020000Z0ED
Vishay Intertechnology
Vishay Intertechnology's CRCW04020000Z0ED is a 0 ohm jumper resistor with METAL GLAZE/THICK FILM tech. Operating b/w -55 to 155 °C, it suits SMT applications in automotive electronics due to AEC-Q200 compliance and 0.063 W power dissipation.
FDC5614P
TAIZHOU ELECTRONICS CO LTD
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.92 W; Maximum Operating Temperature: 150 Cel; Package Body Material: PLASTIC/EPOXY;
NC7WZ07P6X
Fairchild Semiconductor
BUFFER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 6; Package Code: TSSOP; Package Shape: RECTANGULAR;
LM555CMX
National Semiconductor
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
BAV99
Panasonic
MIXER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
87832-1420
Molex
87832-1420 by Molex is a 14-contact board connector with 0.079" pitch, suitable for commercial applications. It features matte tin over nickel finish, glass-filled polyamide insulator, and polarization key for easy assembly. Withstanding voltage of 1400VAC and operating temperature range from -55 to 105°C make it reliable for various electronic devices.
Forward International Electronics
RECTIFIER DIODE; Surface Mount: NO; Maximum Output Current: .15 A; Maximum Reverse Recovery Time: .004 us; Maximum Operating Temperature: 200 Cel; No. of Phases: 1;
PIC18F4550T-I/PT
Microchip Technology
The Microchip Technology PIC18F4550T-I/PT microcontroller operates at a max clock frequency of 48 MHz with 8-bit architecture. It features 13-Ch 10-Bit ADC channels and USB connectivity, making it suitable for industrial applications requiring high-speed data processing and analog-to-digital conversion. With low power mode and flash ROM programmability, this device offers efficient performance in compact designs.
1N4148WT
Transistor & Electronic
BSS138
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Drain-Source On Resistance: 6 ohm; Minimum DS Breakdown Voltage: 50 V; Operating Mode: ENHANCEMENT MODE;
LMZ23603TZ/NOPB
Texas Instruments
LMZ23603TZ/NOPB by Texas Instruments is a switching regulator with 3A output current, 950kHz max switching frequency, and 6V max output voltage. Ideal for industrial applications, it operates b/w -40 to 85°C, with a package size of 10.16mm x 9.85mm x 4.82mm in a small outline style suitable for surface mount assembly.
FAN2001MPX
SWITCHING REGULATOR; Temperature Grade: INDUSTRIAL; No. of Terminals: 6; Package Code: HVQCCN; Package Shape: SQUARE; Surface Mount: YES;
LM22676MRE-ADJ/NOPB
LM22676MRE-ADJ/NOPB by Texas Instruments is a switching regulator with 8 terminals, operating temperature range of -40 to 125°C, and output voltage up to 37V. Ideal for automotive applications, it features VOLTAGE-MODE control mode, PWM technique, and max output current of 3A.
LM25011AQ1MY/NOPB
LM25011AQ1MY/NOPB by Texas Instruments is a switching regulator with a 12V nominal input voltage, 2A max output current, and 2000 kHz max switching frequency. Ideal for automotive applications due to its -40 to 125 °C operating temperature range and small outline package style.
TPS63000DRCRG4
TPS63000DRCRG4 by Texas Instruments is a switching regulator with a max output current of 2A and max operating temp of 85°C. Ideal for industrial applications, it operates in buck-boost mode with a control technique of PWM, suitable for voltages ranging from 1.8V to 5.5V.
LMR54410FDBVR
LMR54410FDBVR by Texas Instruments is a switching regulator with a 1A output current and 1100 kHz max switching frequency. It operates b/w -40 to 125°C, suitable for various applications requiring a compact design and efficient power management in the voltage range of 4-36V.
LM2594MX-3.3/NOPB
SWITCHING REGULATOR; Temperature Grade: AUTOMOTIVE; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
UC2825DWTR
Unitrode
SWITCHING CONTROLLER; Temperature Grade: INDUSTRIAL; No. of Terminals: 16; Package Shape: RECTANGULAR; Surface Mount: YES; No. of Functions: 1;
LM5008AMM/NOPB
Switching Regulator or Controllers; No. of Terminals: 8; Package Code: TSSOP; Package Shape: RECTANGULAR; Surface Mount: YES; Moisture Sensitivity Level (MSL): 1;
LMZ14202HTZE/NOPB
Switching Regulator or Controllers; No. of Terminals: 7; Surface Mount: YES; Terminal Finish: MATTE TIN; Moisture Sensitivity Level (MSL): 3; Maximum Time At Peak Reflow Temperature (s): 30;
LM2576TV-5G
LM2576TV-5G by Onsemi is a 5V switching regulator with max output current of 7.5A and PWM control mode. Ideal for automotive applications, it operates b/w -40 to 125°C, accepting input voltages from 8-40V to deliver stable 5V output. Its buck configuration and high switching frequency make it suitable for various power supply designs.
L6699DTR
STMicroelectronics
L6699DTR by STMicroelectronics is a switching controller with a nominal voltage of 15V and max switching frequency of 245 kHz. With a small outline package style, it is suitable for applications requiring resonant control and push-pull switcher configuration in power supplies up to 15V. The device features dual terminal position, gull wing form, and nickel palladium gold finish on its 16 terminals.
LTM4607IV#PBF
Analog Devices
Analog Devices LTM4607IV#PBF is a 141-terminal switching regulator with 440 kHz max frequency, ideal for industrial applications. Features include 4.5-36V input range, 6V output voltage, and -40 to 85°C operating temp. Suitable for current-mode control in compact designs requiring high efficiency.
TPS54060ADGQ
TPS54060ADGQ by Texas Instruments is a switching regulator with a max output current of 0.5A and max output voltage of 58V, suitable for automotive applications. It operates b/w -40 to 125°C, has a control mode of current-mode, and uses pulse width modulation as the control technique.
LMZ14203EXTTZE/NOPB
SWITCHING REGULATOR; Temperature Grade: MILITARY; No. of Terminals: 7; Package Code: HSOP; Package Shape: RECTANGULAR; Surface Mount: YES;
LM22675MR-ADJ/NOPB
Switching Regulator or Controllers; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES; Control Mode: VOLTAGE-MODE;
LM2671M-5.0/NOPB
LM2671M-5.0/NOPB by Texas Instruments is a voltage-mode switching regulator with a max output current of 0.5A and a nominal output voltage of 5V, suitable for automotive applications. It operates b/w -40 to 125°C, has a buck switcher configuration, and supports pulse width modulation control technique up to 400kHz frequency.
TPS560430X3FDBVR
TPS560430X3FDBVR by Texas Instruments is a switching regulator with 0.6A output current, 1V min output voltage, and 3.3V nominal output voltage. It is used in automotive applications due to its compact size, pulse width modulation control technique, and wide operating temperature range from -40°C to 125°C.
TPS82150SILR
TPS82150SILR by Texas Instruments is a voltage-mode switching regulator with a max output current of 1A and a max switching frequency of 2500 kHz. Ideal for automotive applications, it operates in temperatures ranging from -40 to 125°C, making it suitable for various power management needs in compact designs.
LM27313XMFX/NOPB
LM27313XMFX/NOPB by Texas Instruments is a switching regulator with a small outline, low profile package. It has a max operating temperature of 125°C and can handle input voltages from 2.7V to 14V. This regulator is commonly used in automotive applications for its pulse width modulation control technique and boost configuration.
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A4490EESTR-T
Allegro MicroSystems
A4490EESTR-T by Allegro MicroSystems is a switching regulator with 2A output current, 630kHz max frequency, and -40 to 85°C operating temp. Ideal for industrial applications requiring efficient power control in compact spaces.
A4490EES-T
SWITCHING REGULATOR; Temperature Grade: INDUSTRIAL; No. of Terminals: 20; Package Code: HVQCCN; Package Shape: SQUARE; Surface Mount: YES;
A4492EESTR-T
A4490SES-T
SWITCHING REGULATOR; Temperature Grade: OTHER; No. of Terminals: 20; Package Code: HVQCCN; Package Shape: SQUARE; Surface Mount: YES;
A4490SESTR-T
Supply Digital Components
$106.00
$54.25
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12,000 In-Stock
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