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
TE Connectivity's 2-1622900-5 is a THICK FILM fixed resistor with 28700 ohm resistance, 1% tolerance, and 0.1 W power dissipation. It comes in a RECTANGULAR PACKAGE for surface mount applications at 50 V operating voltage.
Median Price
-
Lifecycle Status
Suppliers In-Stock
10
In-Stock Inventory
1k+
DigiKey
1+ parts
100+ parts
1k+ parts
10k+ parts
PEI Genesis
Verical
Chip1Stop
Rapid Electronics
IBS Electronics
TME
Vyrian
VNN
Nova Conductors
Assy Fe
Argo Parts USA
Continental Prestige Electronics
Aranea Global
Thick film technology provides high stability and accuracy, making this resistor a reliable choice for various applications.
The specific resistance value of 28700 ohm allows for precise control and customization in circuit design.
With a low temperature coefficient of 100 ppm/C, this resistor maintains consistent performance over a wide range of temperatures.
With an operating voltage of 50 V, this resistor is suitable for use in various electronic systems without the risk of voltage overload.
The tight tolerance of 1% ensures accurate and consistent resistance values, crucial for precise circuit calculations and performance.
Designed for surface mount installation, this resistor is easy to integrate into circuit boards, saving space and enhancing overall system efficiency.
With a rated power dissipation of 0.1 W, this resistor can handle moderate power loads while maintaining stability and performance.
Fixed Resistors 2-1622900-5 attributes and parameters. Explore more Fixed Resistors devices from TE Connectivity
Mounting Type:
No. of Terminals:
Shape (Package):
Packing Method:
Dimensions:
Rated Power Dissipation (P):
Resistance:
Resistor Type:
Size Code:
Technology:
Temperature Coef (ppm/Cel):
Terminal Shape:
Tolerance:
Operating Voltage:
2-1622900-5 Resistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8533.21.00.30
SB
8533.21.00.45
TE Connectivity is a global leader in the design and production of innovative connectors and sensors for multiple industries, such as automotive, industrial equipment, data communication systems, aerospace, defense, medical, oil and gas, consumer electronics and energy. It is an American-Swiss domiciled firm that has been providing high-quality products to its customers since 1907.
CEO
Terrence R. Curtin
Executive VP, CFO
Heath A. Mitts
Senior VP, Principal Accounting Officer
Robert J. Ott
1N4148WS
Continental Device India
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Diotec Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
CGA3E2X7R1H104K080AA
TDK
CGA3E2X7R1H104K080AA by TDK is a fixed ceramic capacitor with a capacitance of 0.1 uF and a rated DC voltage of 50 V. It has a temperature coefficient of 15% and can operate at temperatures ranging from -55 to 125 °C. This capacitor is commonly used in surface mount applications for various electronic devices.
LM317T
Inchange Semiconductor
Other Regulators; No. of Terminals: 3; Surface Mount: NO; Technology: BIPOLAR; Minimum Output Voltage-1: 1.2 V; No. of Outputs: 1;
SS14
Eic Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM7805CT
Texas Instruments
LM7805CT by Texas Instruments is a fixed positive single output standard regulator with an output voltage of 5V and max current of 1.5A. It operates b/w 0-125°C, has a dropout voltage of 2V, and offers excellent line/load regulation for various electronic applications.
BAV99
Nexperia
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LM358DT
ROHM
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: LSOP; Package Shape: RECTANGULAR;
Yangzhou Yangjie Electronics
2N2222A
Solid State Devices
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Bytesonic Electronics
General Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
ATMEGA328P-AU
Atmel
MICROCONTROLLER, RISC; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 32; Package Code: TQFP; Package Shape: SQUARE;
LL4148
Shanghai Lunsure Electronic Technology
RECTIFIER DIODE; Surface Mount: YES; Maximum Forward Voltage (VF): 1 V; Maximum Non Repetitive Peak Forward Current: .5 A; No. of Elements: 1; Maximum Reverse Recovery Time: .004 us;
Onsemi
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;
National Semiconductor
FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %;
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;
MBR0520LT3G
MBR0520LT3G 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, ideal for applications requiring high-speed switching and low power loss in compact electronic devices. The package style is small outline, making it suitable for surface mount designs in various electronics.
NXP Semiconductors
1-2176092-8
TE Connectivity
TE Connectivity's 1-2176092-8 is a THIN FILM fixed resistor with 1000 ohm resistance, 0.1% tolerance, and 0.25 W power dissipation. Ideal for surface mount applications in electronics requiring precise resistance values and high operating voltage of 150 V.
CRCW08052K00FKEA
Vishay Intertechnology
Vishay Intertechnology's CRCW08052K00FKEA is a fixed resistor with 2000 ohm resistance, 1% tolerance, and 0.125 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 reference standard compliance and operating voltage of 150 V. Temperature coefficient of 100 ppm/°C ensures stable performance from -55 to 155 °C.
ERJXGN0R00Y
Panasonic
ERJXGN0R00Y by Panasonic is a SMT jumper resistor with 0 ohm resistance, suitable for surface mount applications. With a rated power dissipation of 0.031 W and operating temperatures ranging from -55 to 125 °C, it is ideal for various electronic circuits requiring precise current flow control. The rectangular construction and wraparound terminals make it easy to install in compact spaces.
CRG0603F10K/10
TE Connectivity's CRG0603F10K/10 is a THICK FILM fixed resistor with 10000 ohm resistance, 1% tolerance, and 0.1 W power dissipation. It comes in a rectangular package for surface mount applications at 50 V operating voltage.
ERJA1BJ4R7U
ERJA1BJ4R7U by Panasonic is a fixed resistor with 4.7 ohm resistance, rated for 70-155 °C operating temperature range. It features metal glaze/thick film technology and is suitable for surface mount applications in isolated networks with 2 terminals.
ERA3AEB102V
Panasonic ERA3AEB102V is a SMT fixed resistor with 1000 ohm resistance, 0.1% tolerance, and 0.1 W power dissipation. Ideal for automotive applications due to AEC-Q200 standard compliance and thin film technology offering high precision in a compact rectangular package. Operating temperature range from -55 to 155 °C ensures reliability in harsh conditions.
MOSX5CR22J
Koa Speer Electronics
MOSX5CR22J by Koa Speer Electronics is a cylindrical fixed resistor with a resistance of 0.22 ohm and power dissipation of 5W. With a temperature coefficient of 300 ppm/°C, it operates b/w -55 to 200 °C, making it ideal for applications requiring precise resistance values in varying temperatures.
CRCW12061M00FKEAC
Vishay Intertechnology's CRCW12061M00FKEAC is a fixed resistor with a resistance of 1M ohm and a tolerance of 1%. It operates at temperatures ranging from -55 to 155 °C and is commonly used in surface mount applications.
RC0603JR-10100KL
Yageo
Yageo's RC0603JR-10100KL is a fixed resistor with 100000 ohm resistance, 5% tolerance, and 0.1 W power dissipation. It operates b/w -55 to 155 °C and is ideal for surface mount applications in electronics requiring precise resistance values.
TNPW080510R0FEEA
Vishay Dale
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 10 ohm; Rated Power Dissipation (P): .125 W; Maximum Operating Temperature: 125 Cel; Tolerance: 1 %;
RC0402FR-0712KL
The Yageo RC0402FR-0712KL is a fixed resistor with a resistance of 12000 ohm and a tolerance of 1%. It is suitable for surface mount applications and has a max operating temperature of 155 °C.
CRCW0603100KFKEAC
Vishay Intertechnology's CRCW0603100KFKEAC is a fixed resistor with 100000 ohm resistance, 1% tolerance, and 0.1 W power dissipation. Ideal for surface mount applications in electronics, it operates b/w -55 to 155 °C and has a temperature coefficient of 100 ppm/°C.
CRCW0603100RFKEA03
Vishay Intertechnology's CRCW0603100RFKEA03 is a fixed resistor with 100 ohm resistance, 1% tolerance, and 0.1 W power dissipation. Ideal for surface mount applications in automotive electronics due to AEC-Q200 reference standard compliance and temperature coefficient of 100 ppm/°C.
MCPWR05FTFW0100
Multicomp Pro
MCPWR05FTFW0100 by Multicomp Pro is a 10 ohm fixed resistor with 1% tolerance, suitable for SMT applications. With a max operating temperature of 155°C and power dissipation of 0.125W, it is ideal for electronic circuits requiring precise resistance values in compact spaces.
CRCW0603330RFKEA
Vishay Intertechnology's CRCW0603330RFKEA is a fixed resistor with 330 ohm resistance, 1% tolerance, and 0.1 W power dissipation. Ideal for surface mount applications in automotive electronics due to its AEC-Q200 reference standard and operating voltage of 75 V. With a temperature coefficient of 100 ppm/°C, it can operate b/w -55 °C to 155 °C efficiently.
CRCW04024K75FKEDC
Vishay Intertechnology's CRCW04024K75FKEDC is a fixed resistor with 4750 ohm resistance, 1% tolerance, and 0.063 W power dissipation. Ideal for surface mount applications in electronics, it operates b/w -55 to 155 °C with a temperature coefficient of 100 ppm/°C.
CRCW04022K00FKEDC
Vishay Intertechnology's CRCW04022K00FKEDC is a fixed resistor with 2000 ohm resistance, 1% tolerance, and 0.063 W power dissipation. Ideal for surface mount applications in electronics due to its compact SMT package style and wide operating temperature range from -55 to 155 °C.
MCS04020C1004FE000
Vishay Intertechnology's MCS04020C1004FE000 is a 1M ohm fixed resistor with 1% tolerance and 0.063W power dissipation. Its thin film technology, SMT package style, and -55 to 125 °C operating temperature range make it ideal for precision electronic applications.
RC0402JR-071KL
Yageo's RC0402JR-071KL is a fixed resistor with 1000 ohm resistance, 5% tolerance, and 0.0625 W power dissipation. It operates b/w -55 to 155 °C and has a temperature coefficient of 100 ppm/°C. Ideal for surface mount applications in electronics requiring precise resistance values.
RC0805JR-073K3L
Yageo's RC0805JR-073K3L is a 3300 ohm SMT fixed resistor with 5% tolerance, suitable for applications requiring a rated power dissipation of 0.125 W. It operates b/w -55 to 155 °C and has a temperature coefficient of 100 ppm/°C. Ideal for surface mount technology in various electronic devices.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
2-1623703-0
TE Connectivity's 2-1623703-0 is a THICK FILM fixed resistor with 10000 ohm resistance, 1% tolerance, and 0.1 W power dissipation. It comes in a rectangular package for surface mount applications with WRAPAROUND terminals. Ideal for precision electronic circuits requiring stable resistance values.
2-1625868-7
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 10 ohm; Rated Power Dissipation (P): .25 W; Tolerance: .1 %; No. of Terminals: 2;
2-1623779-8
FIXED RESISTOR; Mounting Type: CHASSIS MOUNT; Resistance: 1000 ohm; Rated Power Dissipation (P): 20 W; Maximum Operating Temperature: 250 Cel; Tolerance: 5 %;
2-1625890-7
FIXED RESISTOR; Mounting Type: THROUGH HOLE MOUNT; Resistance: 1 ohm; Rated Power Dissipation (P): 2 W; Maximum Operating Temperature: 235 Cel; Tolerance: 5 %;
2-1625876-9
FIXED RESISTOR; Mounting Type: THROUGH HOLE MOUNT; Resistance: 100 ohm; Rated Power Dissipation (P): .5 W; Maximum Operating Temperature: 125 Cel; Tolerance: 5 %;
2-1622900-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 28000 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Terminal Shape: WRAPAROUND;
2-1622901-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 2100 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Terminal Shape: WRAPAROUND;
2-1622903-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 2320 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Size Code: 0603;
2-1622906-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 2550 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Manufacturer Series: CRG;
2-1622908-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 2870 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Size Code: 0603;
2-1622916-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 319000 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Terminal Shape: WRAPAROUND;
2-1622924-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 34 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Shape (Package): RECTANGULAR PACKAGE;
2-1622928-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 374000 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Technology: METAL GLAZE/THICK FILM;
2-1622944-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 432 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; No. of Terminals: 2;
2-1622958-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 4530 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Shape (Package): RECTANGULAR PACKAGE;
2-1622963-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 511 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Packing Method: TR;
2-1622967-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 53.6 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Shape (Package): RECTANGULAR PACKAGE;
2-1622977-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 604 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Size Code: 0603;
2-1622989-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 69800 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; Manufacturer Series: CRG;
2-1622993-0
FIXED RESISTOR; Mounting Type: SURFACE MOUNT; Resistance: 715 ohm; Rated Power Dissipation (P): .1 W; Tolerance: 1 %; No. of Terminals: 2;
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