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
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 3; Package Code: TO-220; Package Shape: RECTANGULAR; Terminal Position: SINGLE;
Median Price
-
Lifecycle Status
Suppliers In-Stock
3
In-Stock Inventory
1k+
Digiode
1+ parts
100+ parts
1k+ parts
10k+ parts
Anansix
Vyrian
Native Components
$0.147
$0.141
Northwest PG Solutions
$0.162
$0.143
One Stop Electronics
$29.500
UNI Independent Distributors
Corphita
Peripheral Drivers BUK101-50DL-T attributes and parameters. Explore more Peripheral Drivers devices from NXP Semiconductors
Built-in Protections:
Interface IC Type:
JESD-30 Code:
No. of Functions:
No. of Terminals:
Output Current Flow Direction:
Nominal Output Peak Current Limit:
Package Body Material:
Package Code:
Package Shape:
Package Style (Meter):
Qualification:
Surface Mount:
Terminal Form:
Terminal Position:
BUK101-50DL-T Interface ICs trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8542.39.00.01
SB
8542.39.00.00
NXP is a leading semiconductor company that creates cutting-edge technology to power secure connections in a smarter world. Founded in 2006, they have grown to become one of the top five global semiconductor companies and serve their customers in over 70 countries around the world.
Executive Director, President, CEO
Kurt Sievers
Executive VP, CFO
Bill Betz
Executive VP, Chief Sales Officer
Ron Martino
ICN8
Fabrication
Fab Initiation
1996
Netherlands
Nijmegen
Wafer Capacity
55,000
ATMC (Austin Tech & Mfg Center)
1995
USA
Austin
30,000
N/A
1989
Germany
Boeblingen
CHD
1993
Chandler
OHTC
1991
24,000
New Expansion Fab
2026
ECHO
2020
10,000
LM2675M-ADJ/NOPB
Texas Instruments
LM2675M-ADJ/NOPB by Texas Instruments is a voltage-mode switching regulator with 1A output current, 37V max output voltage, and 260kHz max switching frequency. Ideal for automotive applications due to its -40°C to 125°C operating temperature range and compact small outline package design.
SMBJ18CA
General Instrument
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Yangzhou Yangjie Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Clamping Voltage: 29.2 V; Nominal Breakdown Voltage: 21.05 V; Maximum Repetitive Peak Reverse Voltage: 18 V; Polarity: BIDIRECTIONAL;
CL31B104KBCNNNC
Samsung Electro-mechanics
Samsung Electro-mechanics CL31B104KBCNNNC is a ceramic capacitor with 0.1uF capacitance and 50V rated DC voltage. It features X7R temperature characteristics, -55 to 125 °C operating range, and compact SMT package style. Ideal for applications requiring high reliability in compact electronic devices.
LM317T
National Semiconductor
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Package Shape: RECTANGULAR; Minimum Input-Output Voltage Differential: 3 V;
2N2222A
Micropac Industries
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
LD1117S33CTR
STMicroelectronics
STMicroelectronics LD1117S33CTR is a fixed positive single output LDO regulator with a nominal output voltage of 3.3V and max output current of 1.3A. It operates within an input voltage range of 4.75V to 15V, making it suitable for various applications requiring stable voltage regulation in compact designs. The device features low dropout voltage of 1.3V, high temperature operation up to 125°C, and small outline package style for space-constrained PCB layouts.
1N4148W-T
Rectron
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148WT
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Crystalonics
OPA2277UA/2K5
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;
LM358M
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
1N4148W-7-F
Multicomp Pro
Semitron
ABS25-32.768KHZ-1-T
Abracon
Abracon's ABS25-32.768KHZ-1-T crystal oscillator offers 10 ppm frequency tolerance, 126% stability, and 50000 ohm series resistance. Ideal for applications requiring 0.032768 MHz nominal operating frequency, such as IoT devices and precision timing systems.
LM358AN
NXP Semiconductors
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
LL4148
Synsemi
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
Bytesonic Electronics
BSS84-7-F
SPC TECHNOLOGY/ MULTICOMP
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Package Shape: RECTANGULAR; Transistor Element Material: SILICON;
NCV8403ASTT3G
Onsemi
NCV8403ASTT3G by Onsemi is a small outline peripheral driver with built-in protections for over current, over voltage, and thermal issues. It has a nominal output peak current limit of 17A and operates at a nominal voltage of 10V. Ideal for applications requiring buffer or inverter based peripheral drivers in automotive electronics.
BSP452HUMA1
Infineon Technologies
BSP452HUMA1 by Infineon is a MOS technology peripheral driver with 4 terminals. It offers built-in protections for transient, over current, over voltage, and under voltage. With a max supply voltage of 34V, it is ideal for applications requiring buffer or inverter based interface ICs.
IRS2106STRPBF
International Rectifier
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Temperature Grade: AUTOMOTIVE; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
VN340SP(8933)
STMicroelectronics' VN340SP(8933) is a 1A peripheral driver with 24V nominal voltage. It features 10 terminals, matte tin finish, and gull wing form. Ideal for applications requiring high output current in small outline packages.
NCV8402AMNWT1G
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Peak Reflow Temperature (C): 260; Maximum Time At Peak Reflow Temperature (s): 30; JESD-609 Code: e3; Moisture Sensitivity Level (MSL): 1; Terminal Finish: MATTE TIN;
DS2482X-101+T
Analog Devices
Analog Devices' DS2482X-101+T is a peripheral driver with 9 terminals, operating voltage range of 2.9V to 5.5V, and built-in over current protection. It comes in a rectangular package style with very thin profile and fine pitch, suitable for industrial applications requiring source output current flow direction.
FSFR2100XS
HALF BRIDGE BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 9; Package Shape: RECTANGULAR; Terminal Position: ZIG-ZAG; Package Body Material: PLASTIC/EPOXY;
NCP361MUTBG
NCP361MUTBG by Onsemi is a peripheral driver with 6 terminals and built-in protections against transient, over current, over voltage, thermal, and under voltage. It operates b/w -40 to 85 °C with a supply voltage range of 1.2V to 20V. Ideal for industrial applications requiring a buffer or inverter based peripheral driver in a small outline package style.
VND10N06TR-E
VND10N06TR-E by STMicroelectronics is a small outline peripheral driver with built-in protections for transient, over current, and over voltage. It has a nominal output peak current limit of 10A and turn-on time of 1.8us. Ideal for applications requiring sink output current flow direction in compact spaces.
VN920SO-E
STMicroelectronics' VN920SO-E is a 16-terminal peripheral driver with built-in protections for transient, over current, and over voltage. It operates on power supplies ranging from 8V to 36V and has a max output current of 10A. Ideal for applications requiring buffer or inverter-based interface ICs with a source flow direction.
BTS50452EKAXUMA1
BTS50452EKAXUMA1 by Infineon is a 14-terminal peripheral driver with built-in protections for transient, over current, thermal, and under voltage. It operates at a nominal voltage of 13.5V and has a max supply voltage of 28V. With turn-on/off time of 230us, it is ideal for applications requiring buffer or inverter based peripheral drivers.
VNB35NV04TR-E
VNB35NV04TR-E by STMicroelectronics is a peripheral driver with built-in protections for transient, over current, over voltage, and thermal issues. It operates at a nominal voltage of 5V and has a peak reflow temperature of 260°C. This small outline heat sink package is ideal for applications requiring sink output current flow direction in a compact form factor.
SZNUD3124LT1G
SZNUD3124LT1G by Onsemi is a Peripheral Driver with 2 functions, AEC-Q101 screening level, and built-in transient protection. It has 6 terminals, operates b/w -40 to 125 °C, and supports a supply voltage of 28 V. Ideal for applications requiring BUFFER OR INVERTER BASED PERIPHERAL DRIVER interface ICs.
VND5160AJTR-E
VND5160AJTR-E by STMicroelectronics is a Peripheral Driver with 36V max supply voltage, 4.5V min supply voltage, and 13V nominal voltage. It features built-in protections for transient, over current, over voltage, thermal, and under voltage applications in various electronic systems. This CMOS technology driver has a turn-on time of 10us and turn-off time of 15us suitable for BUFFER OR INVERTER BASED PERIPHERAL DRIVER interface IC types.
IRS2153DSPBF
IRS2153DSPBF by Infineon Technologies is a CMOS half bridge peripheral driver with 8 terminals. It operates b/w -40 to 125 °C and supports a supply voltage range of 10.1-15.4 V. Ideal for automotive applications, it offers under voltage protection and source/sink current flow direction.
ITS4200SMEOHUMA1
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; JESD-609 Code: e3; Moisture Sensitivity Level (MSL): 3; Terminal Finish: TIN;
SN75451BDRE4
SN75451BDRE4 by Texas Instruments is a peripheral driver with 2 functions, operating at 5V. It has a max supply voltage of 5.25V and output current of 0.5A. Ideal for applications requiring AND gate based peripheral drivers in commercial temperature grades.
MIC5842YN
Microchip Technology
MIC5842YN by Microchip Technology is an 8-bit SIPO-based peripheral driver with inverted output polarity. It operates at a nominal voltage of 5V and has a max supply current of 16mA. Ideal for industrial applications, it offers built-in transient protections and sink output current flow direction.
TLE8444SLXUMA1
TLE8444SLXUMA1 by Infineon Technologies is a half bridge based peripheral driver with a nominal output peak current limit of 2.4A. It features source and sink output current flow direction, making it suitable for applications requiring precise control of power delivery. This small outline package with 24 terminals is designed for surface mount assembly in various electronic systems.
BTS3134N
BTS3134N by Infineon Technologies is a peripheral driver with built-in protections for transient, over current, over voltage, and thermal conditions. It operates at a nominal voltage of 12V and has a max output peak current limit of 24A. This driver is commonly used as a buffer or inverter based peripheral driver in various applications.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
BUK109-50DL,118
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Output Current Flow Direction: SINK; Qualification: Not Qualified;
BUK1M200-50SGTD,11
Nexperia
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: GULL WING; No. of Terminals: 20; Package Code: SOP; Package Shape: RECTANGULAR; Package Body Material: PLASTIC/EPOXY;
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: GULL WING; No. of Terminals: 20; Package Code: SOP; Package Shape: RECTANGULAR; Width: 7.5 mm;
BUK1M200-50SGTD,51
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: GULL WING; No. of Terminals: 20; Package Code: SOP; Package Shape: RECTANGULAR; JESD-30 Code: R-PDSO-G20;
NXP Semiconductors' BUK1M200-50SGTD,51 is a Peripheral Driver with 4 functions and built-in protections against transient, over current, over voltage, and thermal issues. This small outline package has 20 terminals in a gull wing form with a turn-on time of 12 us and turn-off time of 65 us. It is ideal for applications requiring buffer or inverter based peripheral drivers with sink output current flow direction.
BUK101-50GL
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 3; Package Code: TO-220; Package Shape: RECTANGULAR; Nominal Output Peak Current Limit: 100 A;
BUK106-50-LP
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Shape: RECTANGULAR; Built-in Protections: TRANSIENT; OVER VOLTAGE; THERMAL; Terminal Position: SINGLE;
BUK102-50DL
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 3; Package Code: TO-220; Package Shape: RECTANGULAR; Built-in Protections: TRANSIENT; OVER CURRENT; THERMAL;
BUK106-50S
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Code: TO-220; Package Shape: RECTANGULAR; Package Style (Meter): FLANGE MOUNT;
BUK102-50GS
BUK106-50S127
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Shape: RECTANGULAR; JESD-30 Code: R-PSFM-T5; Output Current Flow Direction: SINK;
BUK104-50L
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Code: TO-220; Package Shape: RECTANGULAR; JESD-30 Code: R-PSFM-T5;
BUK106-50L127
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Shape: RECTANGULAR; Minimum Supply Voltage: 4 V; Built-in Protections: TRANSIENT; OVER CURRENT; OVER VOLTAGE;
BUK101-50GS,127
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 3; Package Code: TO-220; Package Shape: RECTANGULAR; Package Body Material: PLASTIC/EPOXY;
BUK106-50-LP127
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Shape: RECTANGULAR; Qualification: Not Qualified; JESD-30 Code: R-PSFM-T5;
BUK104-50LP
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Code: TO-220; Package Shape: RECTANGULAR; Built-in Protections: TRANSIENT; OVER CURRENT; THERMAL;
BUK101-50GL127
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 3; Package Code: TO-220; Package Shape: RECTANGULAR; JESD-30 Code: R-PSFM-T3;
BUK104-50S
BUFFER OR INVERTER BASED PERIPHERAL DRIVER; Terminal Form: THROUGH-HOLE; No. of Terminals: 5; Package Code: TO-220; Package Shape: RECTANGULAR; Package Body Material: PLASTIC/EPOXY;
BUK104-50SP
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