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
74LVQ161MTR by STMicroelectronics is a 4-bit synchronous counter with a max frequency of 80 MHz and operates at supply voltages b/w 2V and 3.6V. It features a positive edge trigger, making it ideal for digital applications in military environments. With a compact SO package, it ensures efficient space utilization in designs.
Median Price
-
Lifecycle Status
Suppliers In-Stock
3
In-Stock Inventory
1k+
Digiode
1+ parts
100+ parts
1k+ parts
10k+ parts
Vyrian
Anansix
IDEA Electronic Components Group
$12.920
$11.628
MKK Technologies
$24.294
DigiPath Technology Company
Native Components
$294.363
$288.476
$285.532
$282.589
Northwest PG Solutions
$323.800
Corphita
Parana Technologies
$15.447
The plastic/epoxy material ensures durability and resistance to environmental factors, making this counter a reliable choice for various applications.
The surface mount design allows for a compact layout on PCBs, making it suitable for modern electronic designs with space constraints.
The rectangular shape provides efficient space utilization within the circuit and simplifies integration with other components.
With 4 bits, this counter can count up to 15 (or 16 states in binary), making it versatile for numerous basic counting applications.
The inclusion of a preset input feature allows users to initialize the counter to a specific value, enhancing its flexibility in various applications.
The low nominal supply voltage makes it energy-efficient, ideal for battery-operated devices.
A load capacitance of 50 pF ensures low power consumption and fast response, enhancing overall performance.
The support for a 3.3V power supply makes it compatible with a wide range of microcontrollers and digital systems.
With 16 terminals, this counter offers multiple configurations and connectivity options for easy integration into various circuits.
The small outline package style minimizes space usage on the PCB, allowing for more components in compact designs.
A maximum output current of 24 Amps ensures the counter can drive larger loads or interface effectively with various circuit designs.
A propagation delay of only 17 ns means faster signal processing, which is crucial for high-speed applications.
Withstands high temperatures up to 125 °C, making it suitable for demanding industrial and automotive applications.
The positive edge trigger offers precise control in time-sensitive applications, making it reliable for synchronous operations.
Rated for operation as low as -55 °C, giving it a wide operating range for use in extreme environments.
The high-quality terminal finish ensures reliable connections and resistance to oxidation, enhancing longevity in circuit applications.
Dual terminal positioning allows for flexible mounting options, improving design adaptability on PCBs.
A low seated height of 1.75 mm allows for slim designs, making it an excellent choice for compact electronic devices.
A width of just 3.9 mm helps in high-density circuit designs, supporting small form factor devices.
The ability to operate at a minimum supply voltage of 2V means flexibility in design, especially in battery-powered applications.
The compact length of 9.9 mm makes it ideal for tight spaces and helps in reducing the overall PCB size.
Being MIL-grade assures exceptional reliability and performance in harsh conditions and critical applications.
A high maximum frequency of 80 MHz allows this counter to handle high-speed operations effectively.
Utilizing CMOS technology results in low power consumption and high noise immunity, enhancing performance in digital applications.
The gull wing terminal form facilitates easy soldering, making assembly and manufacturing processes straightforward.
With 'TR' packing, it's suitable for automated assembly processes, enhancing production efficiency.
Synchronous operation mode ensures that outputs are stable and predictable, making it easier to interface with other digital components.
A terminal pitch of 1.27 mm is standard, making it compatible with various PCB layouts and components.
The ability to count up provides straightforward operational logic that is intuitive for most counting applications.
The capability to support a minimum frequency of 80 MHz ensures it is suitable for high-performance digital applications.
A moisture sensitivity level of 3 indicates appropriate handling and storage requirements, assuring reliable operation post-assembly.
Supports a maximum supply voltage of 3.6 V, providing flexibility in design while maintaining efficiency.
Digital Counters 74LVQ161MTR attributes and parameters. Explore more Digital Counters devices from STMicroelectronics
Count Direction:
Family:
JESD-30 Code:
JESD-609 Code:
Length:
Load Capacitance (CL):
Load or Preset Input:
Logic IC Type:
Maximum Frequency At Nominal Supply:
Maximum I (ol):
Operation Mode:
Moisture Sensitivity Level (MSL):
No. of Bits:
No. of Functions:
No. of Terminals:
Maximum Operating Temperature:
Minimum Operating Temperature:
Package Body Material:
Package Code:
Package Equivalence Code:
Package Shape:
Package Style (Meter):
Packing Method:
Power Supplies (V):
Propagation Delay (tpd):
Qualification:
Maximum Seated Height:
Sub-Category:
Maximum Supply Voltage (Vsup):
Minimum Supply Voltage (Vsup):
Nominal Supply Voltage / Vsup (V):
Surface Mount:
Technology:
Temperature Grade:
Terminal Finish:
Terminal Form:
Terminal Pitch:
Terminal Position:
Trigger Type:
Width:
Minimum fmax:
74LVQ161MTR Logic ICs trade compliance attributes, and parameters.
HTS
8542.39.00.01
SB
8542.39.00.00
STMicroelectronics is a global leader in the semiconductor manufacturing industry, with over 35 years of experience providing innovative and advanced technologies for customers around the world. Headquartered in Netherlands, STMicroelectronics has more than 51,323 employees worldwide and operates across 32 countries all over Europe, Asia-Pacific and the Americas. The company’s portfolio includes integrated circuits, discrete components, application-specific standard products, and computer chipsets. STMicroelectronics serves a wide range of industries such as automotive, consumer markets, healthcare and industrial applications.
President, CEO
Jean-Marc Chery
President, CFO, Finance, Purchasing,Enterprise Risk Management & Resilience
Lorenzo Grandi
President, Sales & Marketing
Jerome Roux
Castelletto
Fabrication
Fab Initiation
1968
Italy
Wafer Capacity
SGFAB AMK 6
2000
Singapore
29,000
AG200
Agrate Brianza
14,000
RST 8
France
Rousset
35,000
Crolles 1
1993
Crolles
30,000
Crolles 2-ext. mod 5
Crolles 2-ext. mod 2
2022
Crolles 2-ext. mod 3
2023
Crolles 2
2004
28,000
1985
SiC Fab
2006
Sweden
Norrköping
10,000
Fab 3
2005
Tours
2,000
Fab 1 & Fab 2
1978
55,000
Fab 2
1997
Catania
SGFAB-AMK 6E
2003
145,000
SGFAB-AMJ 9
1984
152,000
AG300 (R3)
1980
25,000
1987
34,000
AG300
2024
Crolles 2-ext. mod 1
2020
Fab 1 6-inch fab
2013
11,000
SiC 6-inch line
2021
2,500
200mm GaN
2018
SGFAB-AMK 8
2001
Crolles 2- JV Fab
SGFAB-AMK 6
2016
38,125
SGFAB-AMK 2E
2010
20,000
Silicon Carbide A.B.
SiC wafer/EPI Fab
SiC Device Fab
2025
MMBT2222ALT1G
Onsemi
MMBT2222ALT1G by Onsemi is a NPN BJT transistor with 3 terminals, max power dissipation of 0.3W, and hFE of 75. Ideal for switching applications, it operates b/w -55 to 150 °C with a max collector-emitter voltage of 40V. This surface-mount device has a transition frequency of 300MHz and turn-on time of 35ns.
LL4148
Semtech Electronics
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
SMBJ18CA
Taiwan Semiconductor
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
SS14
Yangzhou Yangjie Electronics
RECTIFIER DIODE; Surface Mount: YES; Technology: SCHOTTKY; No. of Phases: 1; Config: SINGLE; Maximum Operating Temperature: 125 Cel;
FDV303N
Fairchild Semiconductor
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .35 W; Transistor Application: SWITCHING; JESD-609 Code: e3;
BSS138-7-F
Diodes Incorporated
Diodes Inc. BSS138-7-F is a N-channel FET with 50V DS breakdown voltage, 0.2A max drain current, and 3.5 ohm RDS(on). Ideal for switching applications in small outline packages with matte tin finish, operating up to 150°C peak reflow temp.
BAV99
Secos
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Bkc Semiconductors
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
ROHM
2N2222A
M/a-com Technology Solutions
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Terminal Position: BOTTOM; Package Style (Meter): CYLINDRICAL;
Diotec Semiconductor Ag
BSS84-7-F
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.
MBR0520LT1G
MBR0520LT1G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.385V and output current of 0.5A. It operates b/w -65°C to 125°C, has a peak reflow temperature of 260°C, and a repetitive peak reverse voltage of 20V. This diode is ideal for applications requiring high-speed switching in compact electronic devices.
Wuxi Xuyang Electronic
1N4148WS
Weitron Technology
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Multicomp Pro
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Diode Element Material: SILICON; Technology: AVALANCHE; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V;
Semitron
RECTIFIER DIODE; Surface Mount: NO; JESD-609 Code: e0; Maximum Output Current: .15 A; Maximum Operating Temperature: 200 Cel; Maximum Reverse Recovery Time: .004 us;
Continental Device India
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
MBRA340T3G
MBRA340T3G by Onsemi is a Schottky rectifier diode with 40V reverse test voltage and 3A max output current. Ideal for power applications, it operates b/w -55 to 150°C, features matte tin terminal finish, and comes in a small outline package.
Nexperia
SN74HC393DT
Texas Instruments
SN74HC393DT by Texas Instruments is a digital counter with 4 bits and 2 functions. It has a propagation delay of 62 ns at 5V, making it suitable for industrial applications requiring up to 28 MHz frequency at a max supply voltage of 6V. The package style is small outline, surface mountable, with dual terminal position and Gull Wing form.
CD4020BEX
Harris Semiconductor
BINARY COUNTER; Temperature Grade: MILITARY; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Code: DIP; Package Shape: RECTANGULAR;
CD74HCT93M
CD74HCT93M by Texas Instruments is a digital counter with 3 bits, operating at 5V. It features a propagation delay of 87ns and can handle load capacitance of 50pF. Ideal for military applications due to its temperature grade and asynchronous operation mode.
CD40102BE
Intersil
DECADE COUNTER; Temperature Grade: INDUSTRIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Code: DIP; Package Shape: RECTANGULAR;
CD4518BE
CD4518BE by Texas Instruments is a CMOS digital counter with 4 bits, 2 functions, and a propagation delay of 230 ns. It operates synchronously at a max frequency of 1.5 MHz and is ideal for military-grade applications requiring precise counting capabilities in a compact IN-LINE package.
CD4017BMJ/883
Rochester Electronics
RING COUNTER; Temperature Grade: MILITARY; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Code: DIP; Package Shape: RECTANGULAR;
CD74HCT393M96
Rca Solid State
BINARY COUNTER; Temperature Grade: MILITARY; Terminal Form: GULL WING; No. of Terminals: 14; Package Code: SOP; Package Shape: RECTANGULAR;
CD4024BE
General Electric Solid State
BINARY COUNTER; Temperature Grade: MILITARY; Terminal Form: THROUGH-HOLE; No. of Terminals: 14; Package Code: DIP; Package Shape: RECTANGULAR;
DM74ALS163BN
National Semiconductor
DM74ALS163BN by National Semiconductor is a 4-bit synchronous digital counter with load/preset input. Operating at 5V, it has a max frequency of 40MHz and propagation delay of 20ns. Ideal for applications requiring precise counting in TTL technology circuits.
SN74LV4040APWT
SN74LV4040APWT by Texas Instruments is a 12-bit digital counter with a propagation delay of 12 ns and operates at a max frequency of 50 MHz. It is designed for industrial applications, featuring a supply voltage range from 2V to 5.5V and operating temperature b/w -40°C to 85°C. The package style is small outline, thin profile, shrink pitch with surface mount capability.
SN74HC4040NSR
SN74HC4040NSR by Texas Instruments is a 12-bit digital counter with 32ns propagation delay. Operating at 5V, it has a max frequency of 22MHz and consumes 0.08mA. Ideal for industrial applications requiring asynchronous count direction control in compact designs.
HCF4020BEY
STMicroelectronics
HCF4020BEY by STMicroelectronics is a 14-bit digital counter with a propagation delay of 360 ns. It operates on a supply voltage range of 3-20V and has a max frequency of 3.5 MHz. Ideal for military-grade applications requiring asynchronous count direction in CMOS technology.
CD74HC393M
MM74HC4040MTC
Fairchild Semiconductor's MM74HC4040MTC is a 12-bit digital counter with a propagation delay of 265 ns and max frequency of 24 MHz. It operates in industrial temperature range, suitable for applications requiring asynchronous operation and negative edge trigger type. The package is small outline, thin profile, shrink pitch with matte tin terminal finish.
CD74HC4040E
Lockheed Martin Fairchild System
HEF4060BPN
Philips Semiconductors
BINARY COUNTER; Temperature Grade: INDUSTRIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Code: DIP; Package Shape: RECTANGULAR;
HEF4060BT
BINARY COUNTER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: SOP; Package Shape: RECTANGULAR;
CD4017BE
RING COUNTER; Temperature Grade: MILITARY; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Shape: RECTANGULAR; Minimum Supply Voltage (Vsup): 3 V;
CD74HC40103E
74HC4024DB,118
NXP Semiconductors
NXP Semiconductors' 74HC4024DB,118 is a CMOS digital counter with 7 bits and operates at a max frequency of 24 MHz. It has a propagation delay of 265 ns and can handle load capacitance up to 50 pF. Ideal for automotive applications, this counter supports an asynchronous operation mode and has a temperature range from -40°C to 125°C.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
74LV393D,112
BINARY COUNTER; Temperature Grade: AUTOMOTIVE; Terminal Form: GULL WING; No. of Terminals: 14; Package Code: SOP; Package Shape: RECTANGULAR;
74LV4060PW,118
BINARY COUNTER; Temperature Grade: AUTOMOTIVE; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: TSSOP; Package Shape: RECTANGULAR;
74LV4020N,112
BINARY COUNTER; Temperature Grade: AUTOMOTIVE; Terminal Form: THROUGH-HOLE; No. of Terminals: 16; Package Code: DIP; Package Shape: RECTANGULAR;
74LVQ163TTR
BINARY COUNTER; Temperature Grade: MILITARY; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: TSSOP; Package Shape: RECTANGULAR;
74LVQ163M
BINARY COUNTER; Temperature Grade: MILITARY; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: SOP; Package Shape: RECTANGULAR;
74LVQ163MTR
74LVQ161TTR
74LVQ161M
74LV161PWDH-T
74LV163PWDH
74LV163PWDH-T
74LV163PW-T
74LV161D-T
BINARY COUNTER; Temperature Grade: AUTOMOTIVE; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: SOP; Package Shape: RECTANGULAR;
74LV161PW-T
74LV191D
74LV191DB
BINARY COUNTER; Temperature Grade: AUTOMOTIVE; Terminal Form: GULL WING; No. of Terminals: 16; Package Code: SSOP; Package Shape: RECTANGULAR;
74LV161DB
74LVX163MX
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