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
The Wurth Elektronik 750316031 SMPS Transformer has primary inductance of 370uH, output voltage of 3.3V, and operates b/w -40°C to 125°C. It is designed for surface mount applications in various electronic devices requiring a compact transformer solution with AEC-Q200, CSA, EN, IEC, and UL approvals.
Median Price
$5.480
Lifecycle Status
Suppliers In-Stock
11
In-Stock Inventory
1k+
Farnell
1+ parts
$4.850
100+ parts
$3.880
1k+ parts
$3.550
10k+ parts
$3.470
DigiKey
$5.330
$4.343
-
Mouser Electronics
$5.630
$4.020
Newark
$6.480
$4.870
$4.770
RS (Exports)
$5.214
Element14
$6.940
$6.350
$6.330
Nova Conductors
$4.442
Bristol Electronics
$5.655
$2.658
$2.545
VNN
Vyrian
Dan-Mar Components
Ampacity Inc.
$4.430
Argo Parts USA
Netroflash
$4.353
Continental Prestige Electronics
$3.900
$3.500
Multiple approvals ensure that the product meets industry standards for safety and performance.
Proper inductance helps in efficient energy transfer and reduces power loss in the transformer.
Embossed plastic packing provides protection during transportation and storage, ensuring the product arrives in good condition.
High maximum operating temperature allows for reliable performance under various thermal conditions.
Stable output voltage of 3.3V suitable for many applications, ensuring consistent power delivery.
Low minimum operating temperature allows for operation in cold environments without any performance issues.
Compact height of the transformer allows for space-saving installation in various electronic devices.
Narrow width makes it suitable for applications where space is limited, without compromising on performance.
Matching nominal input voltage of 3.3V ensures compatibility and efficient power transfer.
Switched-mode power supply (SMPS) transformer design ensures high efficiency and low power loss.
Surface mounting feature makes it easy to integrate the transformer onto PCBs, saving assembly time and space.
Optimal length for fitting into various electronic devices while providing the necessary functionality.
SMPS Transformers 750316031 attributes and parameters. Explore more SMPS Transformers devices from Wurth Elektronik
Additional Features:
Approvals (V):
Height:
Nominal Input Voltage (V):
Length:
Mounting Feature:
No. of Winding (Primary):
No. of Winding (Secondary):
Maximum Operating Temperature:
Minimum Operating Temperature:
Output Voltage-1:
Packing Method:
Inductance (Primary):
Transformer Type:
Width:
750316031 Transformers trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
Würth Elektronik is one of the most successful companies within the Würth Group. The Würth Elektronik Group is the preferred partner of many developers and manufacturers from a wide range of industries. With its electronic and electromechanical components, printed circuit boards, and intelligent power and control systems, Würth Elektronik stands for innovative solutions, top quality, and outstanding service that goes far beyond the ordinary – in line with our motto: “more than you expect!”.
SS14
Zowie Technology
RECTIFIER DIODE; Surface Mount: YES; No. of Phases: 1; Maximum Operating Temperature: 125 Cel; No. of Elements: 1; Maximum Non Repetitive Peak Forward Current: 30 A;
SMBJ18CA
Silicon Standard
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WS
Daco Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Frontier Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Unitrode
MMBT2907ALT1G
Rochester Electronics
PNP; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 200 MHz; Maximum Collector Current (IC): .6 A; Terminal Form: GULL WING;
OPA2277UA
Burr-Brown Corporation
OPERATIONAL AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
BAV99
Jiangsu Changjiang Electronics Technology
RECTIFIER DIODE; Surface Mount: YES; Maximum Forward Voltage (VF): .715 V; Maximum Operating Temperature: 150 Cel; Maximum Reverse Recovery Time: .006 us; Maximum Output Current: .2 A;
Sangdest Microelectronics (Nanjing)
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
CRCW06031K00FKEAHP
Vishay Intertechnology
Vishay Intertechnology's CRCW06031K00FKEAHP is a fixed resistor with 1000 ohm resistance, 1% tolerance, and 0.33 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 standard compliance and operating voltage of 75 V.
Rectron
2N2222A
Crystalonics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Sensitron Semiconductor
Dc Components
AT90CAN128-16AU
Atmel
MICROCONTROLLER, RISC; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 64; Package Code: TQFP; Package Shape: SQUARE;
Electronic Devices
General Semiconductor
BSS138
Micro Commercial Components
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Package Shape: RECTANGULAR; Terminal Position: DUAL;
Philips Semiconductors
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Operating Mode: ENHANCEMENT MODE; Maximum Operating Temperature: 150 Cel;
PA5131.006NLT
Pulse Electronics
PA5131.006NLT by Pulse Electronics is a 35W SMPS Transformer with primary inductance of 13uH, operating at -40 to 130°C. It has two windings for both primary and secondary, outputting 12V each. Ideal for surface mount applications in power supplies up to 200KHz frequency.
750315240
Wuerth Elektronik & Kg
750315240 by Wurth Elektronik is a SMPS Transformer with 440uH primary inductance, 5V output voltage-1, and -40 to 125°C operating temperature range. Ideal for surface mount applications in automotive electronics, power supplies, and industrial equipment.
FCT1-33M22SLD
Coilcraft
Coilcraft's FCT1-33M22SLD is a 25W SMPS transformer with primary inductance of 95uH. It has two secondary windings, output voltage of 3.3V, and operates b/w -40 to 85°C. Ideal for surface mount applications requiring input voltage range of 33-57V.
78253/55MVC-R
Murata Manufacturing
Murata Manufacturing's 78253/55MVC-R is a 1W SMPS Transformer with primary inductance of 600uH. It operates b/w -40 to 85°C, outputs 5V, and has a max frequency of 500KHz. Ideal for surface mount applications in power supplies.
PE-68414NL
PE-68414NL by Pulse Electronics is a SMPS transformer with 65uH primary inductance, 0.63A output current, and -12V/12V dual output voltage. Ideal for POWER applications, it operates b/w -40°C to 130°C temperatures and has a 1:1.2:1.2 turns ratio for efficient performance.
750311880
Wurth Elektronik 750311880 is a SMPS transformer with inductance of 2.5uH, operating temperature range from -40 to 125°C, and dimensions L9.78xB9.14xH10.54mm. It has two secondary windings for output voltages of 5V each, suitable for applications requiring a min input voltage of 3V and operating frequency b/w 200kHz to 600kHz on surface mount boards.
POE120PL-12L
Coilcraft's POE120PL-12L is a 120W SMPS transformer with primary inductance of 50uH. It operates b/w -40°C to 125°C, suitable for AEC-Q200 approved applications. With output voltage of 12V, it is designed for surface mounting in various power supply systems.
ETH1-230LD
Coilcraft's ETH1-230LD is a SMPS transformer with 2 primary windings, 350uH inductance, and dimensions of L16.51xB14.73xH7.0 mm. It operates b/w -40 to 85°C and has Tin/Silver/Copper terminal finish. Ideal for surface mount applications in power supplies and converters.
78253/35JC-R
Murata Power Solutions
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Terminal Finish: MATTE TIN; Packing Method: TR, 15 INCH; Minimum Operating Temperature: -40 Cel; Maximum Operating Frequency: 500 KHz;
PA2047NL
PA2047NL by Pulse Electronics is a SMPS transformer with 2 primary windings and an inductance of 7.2 uH. It has a max operating temperature of 130°C and output voltages of 5V and 3.3V. This transformer is suitable for surface mount applications in power supply systems with input voltages ranging from 9V to 36V.
ZB1050-AED
Coilcraft's ZB1050-AED is an 8.25W SMPS transformer with 2 primary windings at 12.5uH, suitable for AEC-Q200 applications. It operates b/w -40 to 85°C, outputs 3.3V, and supports up to 300 KHz frequency, ideal for surface mounting in automotive electronics.
CTX02-15835
Cooper Industries
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Manufacturer Series: CTX02-15835; Width: 14.4 mm; Dimensions: L14.1XB14.4XH10.6 (mm); No. of Winding (Primary): 2;
760390015
Wurth Elektronik 760390015 is a SMPS transformer with inductance of 475uH, output voltage of 5V, and operating temperature range from -40 to 125°C. Ideal for applications requiring surface mounting feature, it has approvals including AEC-Q200, CUL, and UL for reliability in automotive and industrial electronics.
YA9033-ALD
YA9033-ALD by Coilcraft is a 6W SMPS transformer with primary inductance of 25.6uH. It has two secondary windings and operates b/w -40°C to 85°C. This surface mount transformer is commonly used in power supply applications.
C1173-ALB
Coilcraft C1173-ALB is a SMPS transformer with 2 primary windings and 3 secondary windings. It offers an inductance of 166.5 uH, operates b/w -40 to 125 °C, and has dimensions of L17.20xB14.98xH8.51 mm. Ideal for applications requiring an output voltage of 3.3 V, max input voltage of 72 V, and operating frequency up to 500 KHz in surface mount setups.
782485/35C
Murata Manufacturing's 782485/35C is a SMPS transformer with dimensions of 6.35mm x 9.14mm x 9.77mm for through-hole mounting. Ideal for power supply applications due to its compact size and efficient design, packed in tubes for easy handling and storage.
LDT565630T-002
TDK
TDK's LDT565630T-002 is a SMPS transformer with primary inductance of 14.5uH, dimensions of L5.8xB5.6xH3 (mm), and surface mounting feature. Ideal for power supply applications due to its compact size and efficient performance in various electronic devices.
750310799
The Wurth Elektronik 750310799 is a SMPS transformer with 1 primary winding and an inductance of 25 uH. It has dimensions of L9.78XB9.14XH10.54 (mm) and can operate at temperatures ranging from -40 to 125 °C. This transformer is suitable for applications requiring an output voltage of 15 V, such as power supplies or electronic devices.
YA9034-ALD
Coilcraft's YA9034-ALD is a 6W SMPS Transformer with primary inductance of 28.8uH, suitable for applications requiring 12V output voltage. With TR packing method and surface mounting feature, it operates b/w -40 to 85°C temperature range.
MTPL-2516-S12V
Vishay Intertechnology's MTPL-2516-S12V is a 3W SMPS transformer with 2 primary and secondary windings, inductance of 450uH, and output voltage of 12V. Approved for MIL-PRF-27, it operates b/w -55°C to 130°C. Ideal for applications requiring a max input voltage of 380V and operating frequency range from 100KHz to 500KHz.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
750313638
Wurth Elektronik
Wurth Elektronik 750313638 is a SMPS Transformer with primary inductance of 340uH. It has approvals from AEC-Q200, CSA, CUL, UL and operates b/w -40 to 125°C. Ideal for applications requiring a 5V output voltage, it is a surface mount transformer with dimensions L9.14xB8.0xH7.62mm packed in TR, EMBOSSED PLASTIC packaging.
750313970
750313970 by Wurth Elektronik is a SMPS Transformer with inductance of 40uH. It has approvals from IEC and operates b/w -40 to 125°C. With output voltages of 3.3V, it is ideal for applications requiring a min input voltage of 18V and operating frequency range of 200-300 KHz.
750311600
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Height: 11.43 mm; Dimensions: L29.08XB23.11XH11.43 (mm); Inductance (Primary): 12 uH; No. of Winding (Primary): 2;
750311607
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Length: 29.64 mm; Maximum Operating Temperature: 125 Cel; Minimum Input Voltage (V): 30; Dimensions: L29.08XB23.11XH11.43 (mm);
750315371
Wurth Elektronik 750315371 is a SMPS Transformer with inductance of 72uH, output voltage of 5V, and operating temperature range from -40 to 125°C. It is used for surface mount applications in electronics requiring compact dimensions and approvals like AEC-Q200, CSA, EN, IEC, UL.
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Approvals (V): AEC-Q200; CSA; EN; IEC; UL; No. of Winding (Secondary): 1; Width: 10.41 mm; Inductance (Primary): 440 uH;
750311599
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Inductance (Primary): 8 uH; Maximum Input Voltage (V): 48; Dimensions: L29.08XB23.11XH11.43 (mm); Width: 23.11 mm;
750313995
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Output Voltage-2: 5 V; Additional Features: LENGTH AND HEIGHT DIMENSION INCLUDES TERMINALS ALSO; Minimum Input Voltage (V): 15; Length: 17.75 mm;
750342879
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Approvals (V): AEC-Q200; No. of Winding (Secondary): 1; Packing Method: TR, EMBOSSED PLASTIC, 13 INCH; Inductance (Primary): 200 uH;
750311608
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Packing Method: TR; Dimensions: L29.08XB23.11XH11.43 (mm); Maximum Operating Temperature: 125 Cel; No. of Winding (Primary): 2;
750311308
Wurth Elektronik 750311308 is a SMPS Transformer with inductance of 100uH, output current of 0.5A, and output voltage of 24V. Ideal for power applications, it operates b/w -40 to 125°C temperatures and has dimensions L15.24xB13.34xH11.43mm for surface mounting.
750313769
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Approvals (V): AEC-Q200; CSA; EN; IEC; UL; Terminal Finish: TIN SILVER; Nominal Input Voltage (V): 3.3; Height: 7.62 mm;
750316033
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Approvals (V): AEC-Q200; CSA; EN; IEC; UL; Width: 10.41 mm; Maximum Input Voltage (V): 5.5; Dimensions: L12.32XB10.41XH11.43 (mm);
750343068
Wurth Elektronik 750343068 is a SMPS Transformer with inductance of 230uH, output voltage of 24V, and max operating temp of 125°C. Ideal for power supply applications due to its through-hole mounting feature and compact dimensions (29.3mm x 29.2mm x 30.35mm).
750313734
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Approvals (V): AEC-Q200; CSA; EN; IEC; UL; Terminal Finish: TIN SILVER; Length: 9.14 mm; Width: 8 mm;
750311692
DATACOM TRANSFORMER; Mounting Feature: SURFACE MOUNT; Minimum Operating Temperature: -40 Cel; Length: 9.78 mm; Width: 9.14 mm; Maximum Input Voltage (V): 15;
750311307
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Manufacturer Series: 750311307; Terminal Finish: TIN SILVER; Output Voltage-2: 24 V; Inductance (Primary): 100 uH;
750310617
The Wurth Elektronik 750310617 is a SMPS transformer with 1 primary winding and an inductance of 4.5 uH. It has dimensions of L29.08XB23.11XH11.43 (mm) and can operate at temperatures ranging from -40 to 125 °C. This transformer is suitable for applications requiring a min input voltage of 9V and an output voltage of 12V, making it ideal for use in surface mount installations.
SMPS TRANSFORMER; Mounting Feature: SURFACE MOUNT; Terminal Finish: TIN SILVER; Height: 10.54 mm; Additional Features: BREADTH AND HEIGHT DIMENSION INCLUDES TERMINALS ALSO; Maximum Operating Temperature: 125 Cel;
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