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
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 1 A; Terminal Shape: PIN WIRE; Rated Voltage: 250 V;
Median Price
-
Lifecycle Status
Suppliers In-Stock
0
In-Stock Inventory
< 1k
Native Components
1+ parts
$0.078
100+ parts
1k+ parts
10k+ parts
$0.075
Northwest PG Solutions
$0.086
$0.076
Fuses 0325001.MX52LP attributes and parameters. Explore more Fuses devices from Littelfuse
Circuit Protection Type:
Rated Current:
Rated AC Voltage:
Rated Voltage:
Pre Arcing Rating (A2/s):
Body Diameter:
Body Height:
Dimensions:
Blow Characteristic:
Fuse Size/Group:
Trip Time/Delay:
Nominal Joule Integral:
Minimum Operating Temperature:
Maximum Operating Temperature:
Reference Standard:
JESD-609 Code:
Terminal Shape:
Terminal Finish:
Mounting Feature:
0325001.MX52LP Circuit Protection trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.10.00.40
SB
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.
06035C104KAT2A
KYOCERA AVX
06035C104KAT2A by KYOCERA AVX is a ceramic capacitor with 0.1uF capacitance and 50V rated DC voltage. It has X7R temperature characteristics, -55 to 125 °C operating range, and ±10% tolerance. Ideal for SMT applications requiring compact size and reliable performance in various electronic circuits.
SMBJ18CA
Secos
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Continental Device India
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .83 W; Package Body Material: PLASTIC/EPOXY; JEDEC-95 Code: TO-236AB;
LM107H/883
Linear Technology
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Shape: ROUND; Technology: BIPOLAR;
M39029/58-360
Defense Logistics Agency
CONNECTOR ACCESSORY; Contact Type: CRIMP REAR RELEASE; Mating Contacts: M39029/56-348, M39029/57-354; Insertion Tool Sources: MILITARY; Contact Gender: MALE; Alternate Contact Sources: MILITARY;
E8WSDC12-32.768KTR
Ecliptek
PARALLEL - FUNDAMENTAL; Mounting Feature: SURFACE MOUNT; Frequency Tolerance: 20 ppm; Aging: 3 PPM/YEAR; Load Capacitance: 12.5 pF; Nominal Operating Frequency: .032768 MHz;
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.
1N4148
Baneasa S A
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
2N2222A
New Jersey Semiconductor Products
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; Package Shape: ROUND;
BAV99W-7-F
Diodes Incorporated
Diodes Incorporated BAV99W-7-F is a fast recovery rectifier diode with 2 elements in series connected, center tap configuration. It has a max reverse recovery time of 0.004 us and can handle a max output current of 0.15 A. Ideal for applications requiring fast switching capabilities and operating temperatures ranging from -65 to 150 °C.
Fairchild Semiconductor
DS18B20U
Dallas Semiconductor
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 8; Package Shape or Style: RECTANGULAR; Minimum Operating Temperature: -55 Cel; Package Equivalence Code: TSSOP8,.19;
ATMEGA328P-AU
Microchip Technology
ATMEGA328P-AU by Microchip: 8-bit RISC CPU, 20 MHz clock, 23 I/O lines. Ideal for industrial applications with SPI, TWI, USART connectivity and low power mode. Features include 2048 RAM bytes, 1024 EEPROM size, and 16384 ROM words.
LM358N
Texas Instruments
LM358N by Texas Instruments is an operational amplifier with 2 functions, offering a max input offset voltage of 9000 uV and a nominal common mode reject ratio of 85 dB. Widely used in commercial applications, it operates at temperatures ranging from 0 to 70 °C and has a unity gain bandwidth of 1000 kHz.
C0805C104K5RACTU
KEMET Corporation
KEMET C0805C104K5RACTU is a ceramic capacitor with 0.1uF 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 reliable performance.
BSS138
NXP Semiconductors
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; No. of Terminals: 3; Maximum Drain Current (ID): .2 A; Operating Mode: ENHANCEMENT MODE;
CRCW040210K0FKED
Vishay Intertechnology
Vishay Intertechnology's CRCW040210K0FKED is a fixed resistor with 10000 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 high operating temperature range of -55 to 155 °C.
Inter F E T
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Terminal Finish: TIN LEAD; Package Body Material: PLASTIC/EPOXY;
ERJ6ENF10R0V
Panasonic
Panasonic ERJ6ENF10R0V is a 10 ohm fixed resistor with 1% tolerance, suitable for surface mount applications. With a rated power dissipation of 0.125W and operating voltage of 150V, it operates b/w -55°C to 155°C. Its metal glaze/thick film technology ensures stable performance in various electronic circuits.
RC0402FR-0710KL
Yageo's RC0402FR-0710KL is a 10000 ohm SMT fixed resistor with 1% tolerance, suitable for applications requiring a rated power dissipation of 0.0625 W. With a temperature coefficient of 100 ppm/°C, it operates b/w -55 to 155 °C, making it ideal for various electronic circuits.
BK/AGC-2-R
Cooper Industries
BK/AGC-2-R fuse by Cooper Industries is a 2A fast blow electric fuse with a rated voltage of 250V AC. It has a nominal joule integral of 0.00509 J and a rated breaking capacity of 100A, suitable for inline mounting applications. This nickel-finished fuse conforms to CSA and UL standards, making it ideal for circuit protection in various electronic devices.
ATDR3
Mersen S A
The Mersen S A ATDR3 fuse, rated at 3A and 600V AC/300V DC, features a time delay blow characteristic. With a body size of 10.4mm x 38.1mm and end cap terminals, it offers circuit protection with a high breaking capacity of 200kA. Ideal for inline mounting applications, meeting CSA and UL standards.
045201.5MRL
Littelfuse
Littelfuse 045201.5MRL Nano Fuse with 1.5A current, 125V AC/DC voltage rating, and slow blow characteristic. Ideal for circuit protection in electronics with surface mounting feature and gold terminal finish.
KTK-R-12
Cooper Electronic Technologies
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 12 A; Terminal Shape: END CAP; Reference Standard: CSA; UL;
FNQ-10
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 500 V; Rated Current: 10 A; Terminal Shape: END CAP; Blow Characteristic: TIME DELAY;
04515.00MRL
04515.00MRL by Littelfuse is a 5A fuse with 125V AC/DC rated voltage, suitable for electric circuit protection. With dimensions of 6.1mm x 2.69mm x 2.69mm and very fast blow characteristic, it operates b/w -55°C to 125°C temperature range. This surface mount fuse has a rated breaking capacity of 50A and gold terminal finish for various applications requiring reliable protection.
JJS-60
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 60 A; Terminal Shape: END CAP; Body Height: 39.7 mm;
FNQ-R-3
Eaton Corporation
Eaton Corporation's FNQ-R-3 fuse, rated 3A and 600V, features a time delay blow characteristic. With a body size of 10.3mm x 38.1mm and nickel terminal finish, it is ideal for circuit protection in applications requiring a rated breaking capacity of 200kA. Compliant with CE, CSA, and UL standards, it is commonly used in inline/holder mounting setups for electrical fuse protection.
AJT60
AJT60 fuse by Mersen S A is a 60A time delay electric fuse with a rated AC voltage of 700V and rated DC voltage of 400V. It features a body size of 27mm x 60mm, end cap terminal shape, and inline/holder mounting feature. Ideal for circuit protection in applications requiring high breaking capacity up to 200kA.
LPJ-50SP
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 50 A; Terminal Shape: END CAP;
KTK-R-15
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated Current: 15 A; Terminal Shape: END CAP; Body Length/Diameter: 10.3 mm;
FWS-10A20FI
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 1400 V; Rated DC Voltage: 1000 V; Rated Current: 10 A; Terminal Shape: END CAP;
LPJ-100SPI
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 100 A; Terminal Shape: TAB/BLADE;
LPJ-70SP
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 70 A; Terminal Shape: TAB/BLADE;
7010.9850.63
Schurter Ag
The Schurter Ag 7010.9850.63 fuse is a 7x2mm electric fuse with a rated current of 3A and very fast blow characteristic. It has a nominal joule integral of 1.3J, rated AC/DC voltage of 125V, and rated breaking capacity of 300A. Ideal for circuit protection in applications requiring surface mount fuses with high breaking capacities and quick response times.
FWP-40A22F
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 700 V; Rated DC Voltage: 500 V; Rated Current: 40 A; Terminal Shape: END CAP;
LP-CC-3-2/10
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 2.2 A; Terminal Shape: END CAP;
LP-CC-4
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 600 V; Rated DC Voltage: 300 V; Rated Current: 4 A; Terminal Shape: END CAP;
BK/ABC-2-R
ELECTRIC FUSE; Mounting Feature: INLINE/HOLDER; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 2 A; Terminal Shape: END CAP;
KLDR015TXP
KLDR015TXP by Littelfuse is a 15A time delay fuse with 200.5J nominal joule integral, suitable for electric circuit protection at 600V AC and 300V DC. With a trip time of 12s, it has a rated breaking capacity of 200kA, making it ideal for inline mounting applications in various industries.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
032501.2VXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 1.2 A; Terminal Shape: PIN WIRE;
032501.6MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 1.6 A; Terminal Shape: PIN WIRE;
0325012.VXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 12 A; Terminal Shape: PIN WIRE;
0325010.MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 10 A; Terminal Shape: PIN WIRE;
0325.010MXP
Littelfuse 0325.010MXP fuse, rated at 250V, 0.01A, with time delay blow characteristic. Suitable for electric circuit protection in CE standard applications. Features 5s trip time, 100A breaking capacity, and compact dimensions of 6.99mm x 32.72mm for through-hole mounting.
0325.031MXP
0325.031MXP by Littelfuse is a time delay electric fuse with a rated current of 0.031 A and a max operating temperature of 125°C. It has a nominal joule integral of 0.011 J and is commonly used for circuit protection in applications requiring a rated AC voltage of 250 V.
0325020.MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 20 A; Terminal Shape: PIN WIRE;
0325020.HXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 20 A; Terminal Shape: PIN WIRE;
0325003.MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 3 A; Terminal Shape: PIN WIRE;
0325002.MX52P
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 2 A; Terminal Shape: PIN WIRE; Minimum Operating Temperature: -55 Cel;
0325004.HXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 4 A; Terminal Shape: PIN WIRE;
0325003.MXF31P
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 3 A; Terminal Shape: PIN WIRE; Pre Arcing Rating (A2/s): 200;
0325002.MX52LP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 2 A; Terminal Shape: PIN WIRE; Nominal Joule Integral: 118 J;
0325003.VXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 3 A; Terminal Shape: PIN WIRE;
0325001.MXF31P
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 1 A; Terminal Shape: PIN WIRE; Body Length/Diameter: 6.985 mm;
0325004.MX52LP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated Current: 4 A; Terminal Shape: PIN WIRE; Pre Arcing Rating (A2/s): 9.71;
0325001.MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 1 A; Terminal Shape: PIN WIRE;
0325002.MXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 125 V; Rated Current: 2 A; Terminal Shape: PIN WIRE;
0325002.VXP
ELECTRIC FUSE; Mounting Feature: THROUGH HOLE; Rated AC Voltage: 250 V; Rated DC Voltage: 250 V; Rated Current: 2 A; Terminal Shape: PIN WIRE;
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