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
STA529 by STMicroelectronics is a compact audio amplifier designed for industrial applications, featuring a 1.2 W output power and operating b/w -40 °C to 85°C. It supports supply voltages from 1.8 V to 3.6 V with a thin profile grid array package. Ideal for surface mount designs, it offers dual-channel performance in a space-efficient format.
Median Price
-
Lifecycle Status
Suppliers In-Stock
4
In-Stock Inventory
1k+
Anansix
1+ parts
100+ parts
1k+ parts
10k+ parts
Digiode
Vyrian
Elcom Components
IDEA Electronic Components Group
$0.775
$0.697
MKK Technologies
$1.457
DigiPath Technology Company
Parana Technologies
$0.926
Corphita
The plastic/epoxy material ensures durability and reliability, making it suitable for various applications.
Surface mount technology allows for compact design and efficient use of circuit board space.
A square shape offers uniformity in design and facilitates easy integration into existing systems.
As an audio amplifier, this product is specifically designed to enhance audio performance.
Supports multiple voltage levels, making it versatile and compatible with a variety of systems.
With 48 terminals, the product allows for extensive connectivity and flexibility in circuit design.
The fine pitch and thin-profile grid array enhance space efficiency and ease of assembly.
Able to operate at high temperatures ensures reliability in demanding environments.
The wide temperature range allows for rugged use in extreme conditions, suitable for industrial applications.
Bottom terminal positioning aids in effective thermal management and is advantageous for PCB layouts.
Delivers a solid output power, making it effective for a range of audio applications.
A low profile ensures it fits well in compact spaces while maintaining performance.
A width of 5 mm ensures compatibility with standard PCB designs and layouts.
Supports low-voltage operation, improving energy efficiency and battery life in portable applications.
The compact length makes it ideal for devices where space is at a premium.
Designed for industrial use, ensuring robustness and reliability in challenging conditions.
Dual-channel capability allows for stereo audio output, enhancing user experience in audio applications.
CMOS technology is known for its low power consumption and high performance, making it ideal for modern audio devices.
Ball terminals enhance soldering reliability and improve connection integrity.
A tight terminal pitch allows for more compact designs while providing high-density connectivity.
Supports higher voltage operation, ensuring versatility and adaptability to various applications.
Audio & Video Amplifiers STA529 attributes and parameters. Explore more Audio & Video Amplifiers devices from STMicroelectronics
Additional Features:
General IC Type:
JESD-30 Code:
Length:
No. of Channels:
No. of Functions:
No. of Terminals:
Maximum Operating Temperature:
Minimum Operating Temperature:
Nominal Output Power:
Package Body Material:
Package Code:
Package Equivalence Code:
Package Shape:
Package Style (Meter):
Peak Reflow Temperature (C):
Power Supplies (V):
Qualification:
Maximum Seated Height:
Sub-Category:
Maximum Supply Voltage (Vsup):
Minimum Supply Voltage (Vsup):
Surface Mount:
Technology:
Temperature Grade:
Terminal Form:
Terminal Pitch:
Terminal Position:
Maximum Time At Peak Reflow Temperature (s):
Width:
STA529 General Purpose ICs trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8542.33.00.01
SB
8542.33.00.00
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
2N7002
Vishay Intertechnology
2N7002 by Vishay Intertechnology is a N-CHANNEL FET with 60V DS Breakdown Voltage, 0.115A Drain Current, and 7.5 ohm On Resistance. Ideal for SWITCHING applications due to its SINGLE configuration with BUILT-IN DIODE. Operates in ENHANCEMENT MODE, suitable for surface mount with GULL WING terminals.
AT90CAN128-16AUR
Microchip Technology
AT90CAN128-16AUR by Microchip: 16 MHz clock, 8-bit data RAM, and 131072 ROM words. Ideal for industrial applications with CAN, SPI, TWI connectivity and low power mode. Contains 4 timers, 8 ADC channels, and supports up to 10-bit analog to digital conversion.
MBRA160T3G
Onsemi
MBRA160T3G by Onsemi is a Schottky rectifier diode with a max output current of 1A and forward voltage of 0.51V. It operates b/w -55 to 150°C, has a reverse test voltage of 60V, and is ideal for power applications due to its high efficiency and small outline package style.
SMBJ18CA
Pulse Electronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BAV99
ROHM
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
Sangdest Microelectronics (Nanjing)
LL4148
Vishay Telefunken
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
GRM155R71H103KA88D
Murata Manufacturing
The Murata Manufacturing GRM155R71H103KA88D is a ceramic capacitor with 0.01uF capacitance and 50V rated DC voltage. It has X7R temperature characteristics, -55 to 125°C operating range, and ±10% tolerance. Ideal for surface mount applications in electronics requiring compact size and high reliability.
STM32F407VGT6
STMicroelectronics
STM32F407VGT6 by STMicroelectronics is a 32-bit microcontroller with 2/3.3V power supplies, 196608 bytes RAM, and 16-Ch 12-Bit ADC channels. It is ideal for industrial applications requiring CAN, ETHERNET, I2C(3), SPI(3), UART(2), USB(2) connectivity and features DMA(16) for efficient data transfer. With a max clock frequency of 50 MHz and operating temperature range of -40 to 85 °C, it offers high performance in a compact package style (14mm x 14mm).
LM358MX
Texas Instruments
LM358MX by Texas Instruments is a dual operational amplifier with a max input offset voltage of 9000 uV. It has a nominal voltage of 5V and a min voltage gain of 15000. This op amp is commonly used in applications requiring amplification and signal conditioning.
Littelfuse
2N7002-7-F
Diodes Incorporated
Diodes Inc. 2N7002-7-F is a N-channel FET with 60V DS breakdown voltage, 0.115A max drain current, and 13.5 ohm RDS(on). Ideal for switching applications in enhancement mode operation. Features Gull Wing terminals, small outline package style, and operates up to 150°C.
Lite-on Technology
RECTIFIER DIODE; Surface Mount: YES; Terminal Finish: Tin/Lead (Sn/Pb); Maximum Operating Temperature: 175 Cel; Maximum Output Current: .1 A; Maximum Reverse Recovery Time: .006 us;
1N4148
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
First Components International
Tak Cheong Electronics Holdings
SS14
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
C1005X7R1E103K050BB
TDK
The TDK C1005X7R1E103K050BB is a ceramic capacitor with capacitance of 0.01uF and rated DC voltage of 25V. It features X7R temperature characteristics, -55 to 125°C operating range, and ±10% tolerance. Ideal for surface mount applications requiring compact size and stable performance in various electronic circuits.
MBRS1100T3G
MBRS1100T3G by Onsemi is a Schottky rectifier diode with a max output current of 1A and forward voltage of 0.75V. It operates in temperatures ranging from -65 to 175°C, making it suitable for power applications. With a reverse test voltage of 100V, this diode is ideal for high-power circuits requiring efficient rectification.
LM555CN
LM555CN by Texas Instruments is an Analog Waveform Generation IC with a supply voltage range of 4.5V to 16V. It operates b/w 0°C to 70°C, making it suitable for commercial applications. This rectangular package IC has dual terminals and uses bipolar technology for pulse generation in various electronic circuits.
MAX4466EXK-T
Maxim Integrated
MAX4466EXK-T by Maxim Integrated is an audio preamplifier with a small outline, thin profile package. It has a nominal bandwidth of 0.6 kHz and low harmonic distortion of 0.02%. This IC is commonly used in audio and video amplifiers for applications requiring high-quality sound amplification.
MAX9814ETD+T
AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 14; Package Code: HVSON; Package Shape: SQUARE;
MAX9737ETG+
CLASS D AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 24; Package Code: HVQCCN; Package Shape: SQUARE;
TDA729913TR
TDA729913TR by STMicroelectronics is an 8-terminal audio amplifier with 2W output power, 20dB gain, and 10% harmonic distortion. Ideal for audio applications, it operates b/w 0-70°C temperature range and supports a supply voltage of 4.5-18V in a small outline package.
TDA2822M
TDA2822M by STMicroelectronics is a 2-function audio amplifier IC with 10% harmonic distortion, 1W nominal output power, and 39dB gain. It has a rectangular package style with 8 terminals and operates at a supply voltage range of 1.8V to 15V. Ideal for low-power audio applications requiring dual-channel amplification in compact designs.
PTAS6422EQDKQRQ1
PTAS6422EQDKQRQ1 by Texas Instruments is a Class D audio amplifier with 45W output power, suitable for automotive applications. It operates in a temperature range of -40 to 125°C and supports a supply voltage from 4.5V to 26.4V, making it ideal for use in various audio and video amplification systems.
LM4871MM
National Semiconductor
AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: TSSOP; Package Shape: SQUARE;
TPA3123D2PWP
TPA3123D2PWP by Texas Instruments is an audio amplifier IC with 25W output power, 30dB gain, and 2 channels. It operates b/w -40 to 85°C, suitable for industrial applications. The compact package style with small outline and thin profile makes it ideal for space-constrained designs.
LM4670SDX/NOPB
AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 8; Package Code: SON; Package Shape: RECTANGULAR;
LM380N/NOPB
LM380N/NOPB by Texas Instruments is an audio amplifier IC with 2.5W output power and 3% harmonic distortion. Operating temperature range from 0 to 70°C makes it suitable for commercial applications. With a gain of 34dB, this rectangular package style IC is ideal for audio and video amplification in various electronic devices.
TPA3110D2PWPR
TPA3110D2PWPR by Texas Instruments is a 10W audio amplifier IC with 2 channels. It operates at temperatures from -40 to 85°C and supports power supplies of 12/24V. This CMOS technology-based device is ideal for industrial applications requiring high-quality audio amplification in a compact package.
LM3876T
AUDIO AMPLIFIER; Temperature Grade: OTHER; Terminal Form: THROUGH-HOLE; No. of Terminals: 11; Package Code: ZIP; Package Shape: RECTANGULAR;
STA540
STA540 by STMicroelectronics is a Class AB audio amplifier with 4 channels and 34W nominal output power. It operates b/w 0-70°C, with harmonic distortion of 10%. Suitable for audio & video applications, it has a max supply voltage of 22V and min operating temperature of 0°C.
THS4062IDGNG4
THS4062IDGNG4 by Texas Instruments is a video amplifier IC with 2 functions, operating temperature range of -40 to 85°C. It has a nominal bandwidth of 180 kHz and supports supply voltage from 4.5V to 16V. Ideal for audio/video applications requiring high-quality signal amplification in industrial settings.
TFA9894DUK/N2Z
NXP Semiconductors
AUDIO AMPLIFIER; Moisture Sensitivity Level (MSL): 1;
PTAS6424EQDKQRQ1
PTAS6424EQDKQRQ1 by Texas Instruments is an automotive-grade audio amplifier IC with 2 channels and a nominal output power of 75W. It operates b/w -40°C to 125°C, suitable for automotive applications. The package style is small outline with heat sink/slug, featuring a total of 56 terminals in gull wing form.
LM48511SQ
LM48511SQ by Texas Instruments is a rectangular chip carrier audio amplifier with 24 terminals. It offers a nominal output power of 6.7W, operates b/w -40 to 85°C, and has a max supply voltage of 5.5V. Ideal for industrial applications requiring high-quality audio amplification in compact spaces.
TLV320AIC3120IRHBT
TLV320AIC3120IRHBT by Texas Instruments is an audio amplifier IC with 2 channels and 10% harmonic distortion. Operating at temperatures from -40 to 85 °C, it has a nominal output power of 2.5W and requires supply voltages of 1.8-3.6V. Ideal for industrial applications requiring high-quality audio amplification in a compact chip carrier package.
MAX98361AEWL+
AUDIO AMPLIFIER;
LM4950TS
LM4950TS by Texas Instruments is a 2-channel audio amplifier with a nominal output power of 7.5W and operates on a power supply voltage range of 9.6V to 16V. It comes in a small outline package style, suitable for industrial applications requiring high-quality audio amplification in compact spaces. With surface mount capability and gull wing terminal form, it offers efficient performance at temperatures ranging from -40°C to 85°C.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
CLASS AB AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 15; Package Code: ZIP; Package Shape: RECTANGULAR;
STA51013TR
STA530
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 27; Package Code: SZIP; Package Shape: RECTANGULAR;
STA516B
AUDIO/VIDEO AMPLIFIER;
STA529Q
AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 52; Package Code: HVQCCN; Package Shape: SQUARE;
STA515W
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 36; Package Code: SSOP; Package Shape: RECTANGULAR;
STA540SA
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 19; Package Shape: RECTANGULAR; Nominal Output Power: 20 W;
STA508TR
AUDIO AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 36; Package Code: SSOP; Package Shape: RECTANGULAR;
STA510D
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 36; Package Code: HSSOP; Package Shape: RECTANGULAR;
STA516B13TR
STA516BE13TR
STA529B
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: BALL; No. of Terminals: 48; Package Code: TFBGA; Package Shape: SQUARE;
STA5150
STA5100
STA516BETR
STA515W13TR
STA50213TR
STA510
AUDIO AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 27; Package Code: ZIP; Package Shape: RECTANGULAR;
STA515
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