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
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 85 Cel; Length (Package): 9 mm; Technology: METAL OXIDE FILM;
Median Price
-
Lifecycle Status
Suppliers In-Stock
1
In-Stock Inventory
1k+
Vyrian
1+ parts
100+ parts
1k+ parts
10k+ parts
Component Stockers USA
$3.480
AZTECH Wire
$21.390
Non-linear Resistors V07E25PL2 attributes and parameters. Explore more Non-linear Resistors devices from Littelfuse
Maximum Circuit DC Voltage:
Maximum Circuit RMS Voltage:
Maximum Energy Absorbing Capacity:
Mounting Type:
No. of Terminals:
Maximum Operating Temperature:
Minimum Operating Temperature:
Height (Package):
Length (Package):
Package Style (Meter):
Width (Package):
Packing Method:
Rated Power Dissipation (P):
Reference Standard:
Resistor Type:
Sub-Category:
Technology:
Terminal Placement:
Terminal Shape:
Operating Voltage:
V07E25PL2 Resistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8533.40.40.00
SB
8533.40.00.80
Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927.
M39029/58360
Esterline Technologies
CONNECTOR ACCESSORY; Terminal Type: CRIMP; Removal Tools: M81969/14-01; Associated Military - Specifications: MIL-DTL-38999; IEC Conformity: NO; MIL-Connector Accessory Name: CONTACT;
MBR1560CT
General Instrument
MBR1560CT by General Instrument is a common cathode rectifier diode with a max forward voltage of 0.75V and max output current of 15A. It is used for efficiency applications, has a package shape of rectangular, and can operate in temperatures ranging from -65 to 150 °C.
BAV99
Good-ark Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
LM317T
Linear Technology
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Operating Temperature (TJ-Min): 0 Cel; No. of Functions: 1; JESD-609 Code: e0;
STMicroelectronics
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Package Code: TO-220; Terminal Form: THROUGH-HOLE; JESD-30 Code: R-XSFM-T3; Minimum Input-Output Voltage Differential: 3 V;
1N4148WS
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
DS18B20
Maxim Integrated
DS18B20 by Maxim Integrated is a 12-bit digital temperature sensor with 1-Wire interface. It operates b/w -55 to 125°C, with ±0.5°C accuracy. Commonly used in applications requiring precise temperature monitoring like HVAC systems and industrial automation.
2902037
Phoenix Contact
MODULAR TERMINAL BLOCK;
STM32F401CDY6TR
STM32F401CDY6TR by STMicroelectronics is a 32-bit microcontroller with 393216 ROM words, 50 MHz clock frequency, and 36 I/O lines. It is used in applications requiring high-speed processing, such as industrial automation and consumer electronics.
LM358N
Intersil
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
1N4148
Surge Components
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
2N2222A
Tesla Elektronicke Soucastky
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
North American Philips Discrete Products Div
RECTIFIER DIODE; Surface Mount: NO; Maximum Forward Voltage (VF): 1 V; JESD-609 Code: e0; Maximum Repetitive Peak Reverse Voltage: 100 V; Terminal Finish: Tin/Lead (Sn/Pb);
BSS138DW-7-F
Diodes Incorporated
BSS138DW-7-F by Diodes Incorporated is a N-channel small signal FET with a min DS breakdown voltage of 50V. It is used for switching applications and operates in enhancement mode. This surface mount transistor has a max drain current of 0.2A and a max power dissipation of 0.2W.
Rochester Electronics
Tak Cheong Electronics Holdings
BSS138
NXP Semiconductors
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; No. of Terminals: 3; Maximum Drain Current (ID): .2 A; Operating Mode: ENHANCEMENT MODE;
KSZ9031RNXIC
Microchip Technology
KSZ9031RNXIC by Microchip Technology is a network interface chip with 1 transceiver. It operates at a data rate of 1000 Mbps and has a nominal voltage of 1.2V. This chip is commonly used in industrial applications requiring Ethernet connectivity.
Bay Linear
Other Regulators; No. of Terminals: 3; No. of Outputs: 1; Surface Mount: NO; Maximum Load Regulation (%): 1.5 %; Operating Temperature (TJ-Min): 0 Cel;
IRLML6402TRPBF
Infineon Technologies
IRLML6402TRPBF by Infineon is a P-CHANNEL FET for SWITCHING applications. It features a 20V DS Breakdown Voltage, 22A IDM, and 0.065 ohm RDS(on). With a small outline package and matte tin finish, it operates in temperatures from -55 to 150 °C.
NTCS0805E3472JMT
Vishay Intertechnology
Vishay Intertechnology's NTCS0805E3472JMT is a 4700 ohm NTC thermistor with 5% tolerance. It operates b/w -40°C to 150°C, making it ideal for temperature sensing applications. With a thermal sensitivity index of 3500 K, this SMT package thermistor is suitable for automotive and industrial use.
RF1334-000
Littelfuse
PTC RESETTABLE FUSE; Mounting Type: SURFACE MOUNT; Resistance: 1.5 ohm; Maximum Operating Temperature: 85 Cel; Reference Standard: CSA; TUV; UL; No. of Terminals: 2;
55015
Ysi
NTC THERMISTOR; No. of Terminals: 2;
RXEF110K
PTC RESETTABLE FUSE; Mounting Type: THROUGH HOLE MOUNT; Maximum Operating Temperature: 85 Cel; Additional Features: 0.15-0.25 OHMS AT 20 DEG CEL; Terminal Placement: RADIAL; Minimum Operating Temperature: -40 Cel;
NTC0805J470R
TE Connectivity
TE Connectivity's NTC0805J470R is a 470 ohm NTC thermistor with 5% tolerance and 0.125 W power dissipation. It features dual-ended terminals in a rectangular package (2mm x 1.25mm x 0.5mm) for temperature sensing applications, suitable for surface mounting method.
MF-MSMF075/24-2
Bourns
The Bourns MF-MSMF075/24-2 is a PTC resettable fuse with resistance of 0.11 ohm, operating voltage of 24V, and max temp of 85°C. It is used for overcurrent protection in automotive applications due to its dual-ended terminals and SMT package style.
V10E25P
V10E25P by Littelfuse is a VARISTOR with METAL OXIDE FILM tech, 13J energy capacity, and 25V RMS voltage. Ideal for surge protection in electronics due to its radial package style, -40 to 85°C operating temp range, and UL/CUL/TUV certifications.
B72520T0300K062
TDK
B72520T0300K062 by TDK is a VARISTOR with 30V max circuit RMS voltage and 1.1J energy absorbing capacity. It has dual-ended terminals, SMT package style, and operates b/w -55°C to 150°C. Ideal for surge protection in electronic circuits requiring high reliability and compact design.
RXEF010-2
TE Connectivity's RXEF010-2 is a PTC resettable fuse with 7.5 ohm resistance and rated AC voltage of 60V. Ideal for temperature sensing applications, it features radial terminal placement in a disk package. With a max operating temperature of 85°C and through-hole mounting, it offers reliable protection in various electronic circuits.
B57471V2103J062
B57471V2103J062 by TDK is a NTC thermistor with 10000 ohm resistance, 5% tolerance, and 0.21 W power dissipation. It is used for temperature compensation in various applications due to its thermal sensitivity index of 4455 K and operating temperature range from -55 °C to 125 °C. The thermistor comes in a rectangular SMT package with dual-ended terminals for surface mounting.
NTCALUG01T103G501
Vishay Intertechnology's NTCALUG01T103G501 is a 10000 ohm NTC thermistor with 2 terminals, radial placement, and chassis mount package. It has a thermal sensitivity index of 3984 K and operates b/w -40 to 150 °C. Ideal for temperature sensing applications, meeting AEC-Q200, CUL, and UL standards.
NTCLE203E3103GB0
Vishay Intertechnology NTCLE203E3103GB0 is a 10000 ohm NTC thermistor with thermal sensitivity index of 3977 K. Ideal for temperature sensing applications, it has a rated temperature range from -40 to 125 °C and tolerance of 2%. With radial terminal placement and disk package shape, it offers through hole mounting and 0.1 W power dissipation.
NTCLE100E3104JB0A
Vishay Intertechnology's NTCLE100E3104JB0A is a 100000 ohm NTC thermistor with thermal sensitivity index of 4190 K. It has a rated temperature range from -40 to 125 °C and is ideal for temperature sensing applications. The thermistor features radial terminal placement, matte tin finish, and through hole mounting method.
NCP15WF104F03RC
Murata Manufacturing
Murata Manufacturing's NCP15WF104F03RC is a Non-linear Resistor with 100000 ohm resistance, 1% tolerance, and 5V operating voltage. It is used for TEMPERATURE SENSING applications due to its high thermal sensitivity index of 4250 K and wide temperature range from -40°C to 125°C. The thermistor features dual-ended terminals in a surface mount package style for easy installation.
RXEF020S
TE Connectivity's RXEF020S is a PTC resettable fuse resistor with a rated AC voltage of 72V. It is used for temperature sensing applications and has a max operating temperature of 85°C. Its terminal placement is radial, and it comes in a disk package shape.
NTCS0603E3103FHT
Vishay Bc Components
NTC THERMISTOR; Mounting Type: SURFACE MOUNT; Resistance: 10000 ohm; Rated Power Dissipation (P): .125 W; Maximum Operating Temperature: 150 Cel; Tolerance: 1 %;
MOV-10D431KTR
The Bourns MOV-10D431KTR is a VARISTOR with 65J energy absorption, 275V RMS voltage, and 350V operating voltage. It is used for surge protection in applications requiring high transient energy handling capabilities. With a radial package style and through-hole mounting, it ensures reliable performance in diverse environments.
2016L050MR
2016L050MR by Littelfuse is a PTC resettable fuse with a resistance of 0.2 ohm and an operating voltage of 60V. It is used for overcurrent protection in various applications, featuring dual-ended terminal placement and a rectangular package shape.
NTCS0603E3473FHT
NTC THERMISTOR; Mounting Type: SURFACE MOUNT; Resistance: 47000 ohm; Rated Power Dissipation (P): .125 W; Maximum Operating Temperature: 150 Cel; Tolerance: 1 %;
EZJZ0V800AA
Panasonic
The Panasonic EZJZ0V800AA is a varistor resistor with dual-ended terminals, SMT package style, and matte tin finish. It operates at temperatures from -40 to 85°C and has a max voltage of 18V DC. Ideal for surface mount applications requiring protection against voltage surges.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
V07E25P
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 85 Cel; Minimum Operating Temperature: -40 Cel; Width (Package): 5 mm;
V07E440P
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 125 Cel; Height (Package): 13 mm; Minimum Operating Temperature: -55 Cel;
V07E20P
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 85 Cel; Terminal Placement: RADIAL; Reference Standard: CUL, TUV, UL;
V07E230P
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 125 Cel; Package Style (Meter): Radial; Maximum Energy Absorbing Capacity: 20 J;
V07E95P
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 85 Cel; No. of Terminals: 2; Terminal Shape: WIRE;
V07E130L2B5
Renesas Electronics
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit RMS Voltage: 130 V; Maximum Energy Absorbing Capacity: 13 J; Technology: METAL OXIDE FILM; Maximum Circuit DC Voltage: 170 V;
V07E130L2B1
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Package Style (Meter): Radial; Technology: METAL OXIDE FILM; Operating Voltage: 170 V; Maximum Circuit RMS Voltage: 130 V;
V07E130L2A5
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Package Style (Meter): Radial; Technology: METAL OXIDE FILM; Maximum Energy Absorbing Capacity: 13 J; Maximum Circuit DC Voltage: 170 V;
V07E130L1T7
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit RMS Voltage: 130 V; Technology: METAL OXIDE FILM; Package Style (Meter): Radial; Maximum Circuit DC Voltage: 170 V;
V07E130L3A1
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Energy Absorbing Capacity: 13 J; Maximum Circuit DC Voltage: 170 V; Maximum Circuit RMS Voltage: 130 V; Operating Voltage: 170 V;
V07E130L2A1
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit DC Voltage: 170 V; Maximum Circuit RMS Voltage: 130 V; Operating Voltage: 170 V; Package Style (Meter): Radial;
V07E130L1T5
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Package Style (Meter): Radial; Maximum Energy Absorbing Capacity: 13 J; Maximum Circuit RMS Voltage: 130 V; Operating Voltage: 170 V;
V07E130L2B7
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit RMS Voltage: 130 V; Operating Voltage: 170 V; Maximum Energy Absorbing Capacity: 13 J; Package Style (Meter): Radial;
V07E130L2T1
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit DC Voltage: 170 V; Maximum Energy Absorbing Capacity: 13 J; Package Style (Meter): Radial; Technology: METAL OXIDE FILM;
V07E130L2A7
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Technology: METAL OXIDE FILM; Package Style (Meter): Radial; Maximum Circuit RMS Voltage: 130 V; Maximum Energy Absorbing Capacity: 13 J;
V07E130L2T5
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Operating Voltage: 170 V; Technology: METAL OXIDE FILM; Maximum Energy Absorbing Capacity: 13 J; Package Style (Meter): Radial;
V07E130L1B5
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit DC Voltage: 170 V; Operating Voltage: 170 V; Technology: METAL OXIDE FILM; Package Style (Meter): Radial;
V07E130L1B7
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Maximum Circuit RMS Voltage: 130 V; Package Style (Meter): Radial; Maximum Energy Absorbing Capacity: 13 J; Technology: METAL OXIDE FILM;
V07E130L1B1
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Package Style (Meter): Radial; Maximum Circuit RMS Voltage: 130 V; Operating Voltage: 170 V; Maximum Circuit DC Voltage: 170 V;
V07E130L1A5
VARISTOR; Mounting Type: THROUGH HOLE MOUNT; Technology: METAL OXIDE FILM; Package Style (Meter): Radial; Maximum Energy Absorbing Capacity: 13 J; Operating Voltage: 170 V;
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