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
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Nominal Operating Frequency: 125 MHz; Frequency Deviation or Pullability: 30 ppm;
Median Price
-
Lifecycle Status
Suppliers In-Stock
2
In-Stock Inventory
1k+
Vyrian
1+ parts
100+ parts
1k+ parts
10k+ parts
Nova Conductors
AZTECH Wire
$14.726
West Coast Incorporated
Argo Parts USA
Continental Prestige Electronics
Bastille Electronics
VCXO Clock Oscillators VX-705-EAE-GXXN-125M000000 attributes and parameters. Explore more VCXO Clock Oscillators devices from Vectron International
Maximum Control Voltage:
Minimum Control Voltage:
Maximum Fall Time:
Frequency Adjustment (Mechanical):
Frequency Deviation or Pullability:
JESD-609 Code:
Linearity:
Mounting Feature:
No. of Terminals:
Nominal Operating Frequency:
Maximum Operating Temperature:
Minimum Operating Temperature:
Oscillator Type:
Output Load:
Package Equivalence Code:
Physical Dimension:
Maximum Rise Time:
Maximum Supply Current:
Maximum Supply Voltage:
Minimum Supply Voltage:
Nominal Supply Voltage:
Maximum Symmetry (%):
Terminal Finish:
November 2017 Hudson, New Hampshire-based Vectron International, now Microsemi, is a world leader in the design, manufacture and marketing of frequency control, sensor, and hybrid product solutions using the very latest techniques in both bulk acoustic wave (BAW) and surface acoustic wave (SAW) based designs from DC to microwave frequencies. Microsemi Corporation, a wholly owned subsidiary of Microchip Technology Inc. (Nasdaq: MCHP), offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, California.
CC0603KRX7R9BB103
Yageo
Yageo CC0603KRX7R9BB103 is a 0603 SMT ceramic capacitor with capacitance of 0.01uF and rated DC voltage of 50V. It has X7R temperature characteristics, -55 to 125°C operating range, and ±10% tolerance. Ideal for surface mount applications in electronics requiring stable capacitance across temperatures.
M85049/85-08W02
Glenair
CONNECTOR ACCESSORY; MIL Conformity: YES; Material: ALUMINIUM ALLOY; Associated Backshell Military - Specifications: MIL-DTL-38999; Shell Sizes: 08; DIN Conformity: NO;
LM358M
Onsemi
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
ULN2003ADR
Texas Instruments
ULN2003ADR by Texas Instruments is a NPN BJT with 7 elements, max IC of 0.5A, and VCEsat of 1.6V. Ideal for switching applications in small outline packages with Gull Wing terminals.
LM107H
Intersil
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Nominal Common Mode Reject Ratio: 96 dB;
2902037
Phoenix Contact
MODULAR TERMINAL BLOCK;
2N7002
NXP Semiconductors
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .83 W; JESD-609 Code: e3; Minimum DS Breakdown Voltage: 60 V;
SMBJ18CA
STMicroelectronics
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Vishay Intertechnology
Vishay Intertechnology's SMBJ18CA is a bidirectional TRANS VOLTAGE SUPPRESSOR DIODE with a max clamping voltage of 29.2 V and a breakdown voltage of 21.05 V. It is surface mountable and commonly used in transient suppression applications.
FDD5614P
FDD5614P by Onsemi is a P-CHANNEL Power FET with 60V DS Breakdown Voltage, ideal for SWITCHING applications. It features 45A IDM and 0.1 ohm RDS(ON), operating in ENHANCEMENT MODE at up to 175°C. The PLASTIC/EPOXY package with GULL WING terminals ensures efficient heat dissipation and reliable performance.
SSL-LXA228SRC-TR11
Lumex
SSL-LXA228SRC-TR11 by Lumex is a 1.9mm SINGLE COLOR LED with peak wavelength of 660nm and max forward current of 0.03A. Ideal for applications requiring SUPER RED light emission, such as indicator lights in electronic devices due to its clear lens and surface mounting feature.
MMBT2222ALT1G
Rochester Electronics
NPN; Configuration: SINGLE; Surface Mount: YES; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .3 W; Maximum Collector Current (IC): .6 A;
1N4148
Iskra Semic Capacitors Industry
RECTIFIER DIODE; Surface Mount: NO; No. of Phases: 1; Maximum Operating Temperature: 200 Cel; JESD-609 Code: e0; Maximum Non Repetitive Peak Forward Current: 2 A;
M39029/56351
Souriau
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Gender: FEMALE; Insertion Tools: M81969/14-10; Tool Settings: M22520/2-10; DIN Conformity: NO;
2N2222A
Boca Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Panjit International
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
CRCW04020000Z0ED
Vishay Intertechnology's CRCW04020000Z0ED is a 0 ohm jumper resistor with METAL GLAZE/THICK FILM tech. Operating b/w -55 to 155 °C, it suits SMT applications in automotive electronics due to AEC-Q200 compliance and 0.063 W power dissipation.
Motorola
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; Maximum Collector-Base Capacitance: 8 pF;
M39029/56-351
Amphenol
CONNECTOR ACCESSORY; Minimum Operating Temperature: -65 Cel; Additional Features: STANDARD: MIL-DTL-38999; Contact Gender: FEMALE; MIL-Connector Accessory Name: CONTACT; Associated Military - Specifications: MIL-DTL-38999;
M24308/2-1F
Tyco Electronics Amp
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; IEC Conformity: NO; Mixed Contacts: NO; Empty Shell: NO;
NBVSPA027LN1TAG
NBVSPA027LN1TAG by Onsemi is a VCXO Clock Oscillator with LVDS type, operating at frequencies from 60 MHz to 700 MHz. It features a frequency stability of 50%, ceramic package material, and operates at temperatures ranging from -40 °C to 85°C. Ideal for applications requiring precise timing control in electronic systems.
S1319EGB-125.0000
Diodes Incorporated
VCXO, Clock; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 4; Minimum Operating Temperature: -40 Cel; Package Equivalence Code: DIP4/8,.3; Nominal Supply Voltage: 3.3 V;
550CJ125M000DGR
Silicon Labs
Silicon Labs' 550CJ125M000DGR is a VCXO Clock Oscillator with 20% frequency stability, operating at 125 MHz. It has a max supply voltage of 3.63 V and is ideal for applications requiring precise timing such as telecommunications equipment and networking devices.
ST1319ABAS-32.0000(T)
VCXO, Clock; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 8; Maximum Operating Temperature: 70 Cel; Maximum Supply Current: 35 mA; Nominal Operating Frequency: 32 MHz;
ST1310EBAS-32.0000(T)
VCXO, Clock; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 8; Maximum Supply Current: 35 mA; Minimum Operating Temperature: -40 Cel; Technology: HYBRID;
ST1509AAAJ-1.5000(T)
VCXO, Clock; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Power Supplies (V): 5; Nominal Operating Frequency: 1.5 MHz; Minimum Operating Frequency: 1.5 MHz;
S1554AABBK-FREQ(T)
PECL; Mounting Feature: SURFACE MOUNT; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Additional Features: ENABLE/DISABLE FUNCTION; Minimum Operating Frequency: 70 MHz;
SCR050TGCF3-065.5360/032.7680
TTL; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 16; Frequency Stability: 100 %; Frequency Adjustment (Mechanical): NO; Minimum Operating Temperature: 0 Cel;
SCR050TCBGA-012.0000/000.0500
TTL; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 16; Frequency Stability: 50 %; Frequency Adjustment (Mechanical): NO; Output Load: 5 TTL;
S1569BABJ-65.0000(T)
VCXO, Clock; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Maximum Operating Frequency: 168 MHz; Terminal Finish: Tin/Lead (Sn/Pb); Nominal Supply Voltage: 3.3 V;
NBVSBA027LN1TAG
NBVSBA027LN1TAG by Onsemi is a VCXO Clock Oscillator with LVPECL type, operating at 148.5 MHz frequency. It offers 50% Frequency Stability and has a max supply voltage of 3.63 V. Ideal for applications requiring precise timing control in electronic devices.
PL500-16SC-R
Microchip Technology
PL500-16SC-R by Microchip Technology is a VCXO Clock Oscillator with LVCMOS type, 1-18 MHz frequency range, and 15 pF output load. It operates b/w -40 to +85°C and requires 2.25-3.63 V supply voltage. Ideal for applications requiring precise timing in electronic devices.
SCR050TABC3-012.0000/032.7680
VCXO, Clock;
NBVSBA026LN1TAG
NBVSBA026LN1TAG by Onsemi is a VCXO Clock Oscillator with LVPECL type, operating at 644.53 MHz frequency. It offers 50% stability, 100 ppm pullability, and can handle a max supply voltage of 3.63 V. Ideal for applications requiring precise timing control in electronic circuits.
ASG-D-V-A-491.520MHZ
Abracon
Abracon's ASG-D-V-A-491.520MHZ is a VCXO Clock Oscillator with 35% Frequency Stability, operating at 491.52 MHz. It has LVDS Oscillator Type, 3.465V Max Supply Voltage, and is ideal for applications requiring precise timing in environments up to 85°C.
ASEV-24.000MHZ-E-J-T
SCR050TATHA-065.5360/000.0500
ST1509BCA-FREQ-OUT23
CMOS; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 5; Frequency Stability: 50 %; Frequency Adjustment (Mechanical): NO; Maximum Operating Frequency: 28.6363 MHz;
SCR050TFTG3-065.5360/000.0500
TTL; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 16; Frequency Stability: 100 %; Frequency Adjustment (Mechanical): NO; Minimum Operating Temperature: -40 Cel;
PL560-47QC
Phaselink
LVCMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 16; Frequency Adjustment (Mechanical): NO; Minimum Supply Voltage: 2.97 V; Maximum Fall Time: 1.6 ns;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
VX-705-EAE-GXXN-125M000000
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Maximum Fall Time: 5 ns;
Microsemi
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Output Load: 15 pF; Maximum Rise Time: 5 ms;
VX-705-ECE-KXAN-101M992000
LVPECL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Maximum Supply Voltage: 3.465 V;
VX-705-EAE-GXXN-120M000000
Vectron International
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Maximum Supply Current: 25 mA; Maximum Supply Voltage: 3.465 V;
VX-705-EAE-GXXN-127M795200
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Maximum Rise Time: 5 ms; Maximum Supply Voltage: 3.465 V;
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Maximum Control Voltage: 3 V; Maximum Supply Voltage: 3.465 V;
VX-705-EAE-GXXN-120M000000_SNPBDIP
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Maximum Fall Time: 5 ns; Nominal Operating Frequency: 120 MHz;
VX-705-EAE-GXXN-125M000000_SNPBDIP
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Output Load: 15 pF; Maximum Control Voltage: 3 V;
VX-705-EAE-GXXN-127M795200_SNPBDIP
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Maximum Supply Voltage: 3.465 V; Minimum Supply Voltage: 3.135 V;
VX-705-EAE-GXXN-122M880000_SNPBDIP
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Minimum Supply Voltage: 3.135 V; Nominal Supply Voltage: 3.3 V;
VX-705-EAE-GXXN-120M000000_SNPB
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Maximum Symmetry (%): 55/45;
VX-705-EAE-GXXN-122M880000_SNPB
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Nominal Operating Frequency: 122.88 MHz;
VX-705-EAE-GXXN-125M000000_SNPB
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Minimum Supply Voltage: 3.135 V; Linearity: 5 %;
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Adjustment (Mechanical): NO; Terminal Finish: Tin/Lead (Sn/Pb); Minimum Supply Voltage: 3.135 V;
CMOS; Mounting Feature: SURFACE MOUNT; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Linearity: 5 %; Maximum Control Voltage: 3 V;
CMOS; Mounting Feature: SURFACE MOUNT; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Nominal Supply Voltage: 3.3 V; Maximum Control Voltage: 3 V;
CMOS; Mounting Feature: SURFACE MOUNT; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Additional Features: TR, 7 INCH; Frequency Deviation or Pullability: 30 ppm;
VX-705-EAE-GXXN-127M795200TR
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Frequency Deviation or Pullability: 30 ppm;
VX-705-EAE-GXXN-125M000000TR
CMOS; Mounting Feature: SURFACE MOUNT; No. of Terminals: 6; Frequency Stability: 20 %; Frequency Adjustment (Mechanical): NO; Maximum Control Voltage: 3 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