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
The Honeywell SDX01D4-A is a piezoresistive pressure sensor with 0.2% linearity, operating from -40 to 85°C. It offers an output range of 17.82-18.80mV and operates on a max supply voltage of 20V. Ideal for applications requiring precise pressure measurement in a compact design with through-hole mounting capability.
Median Price
$344.585
Lifecycle Status
Suppliers In-Stock
11
In-Stock Inventory
1k+
Chip1Stop
1+ parts
$296.930
100+ parts
$261.140
1k+ parts
-
10k+ parts
Master Electronics
$383.550
$288.070
Powell Electronics
$393.250
$316.310
Verical
$472.935
$333.922
DigiKey
$337.693
TTI
$275.260
Arrow
$290.190
Electro Sonic
$374.820
$305.630
IBS Electronics
$551.561
$397.693
Vyrian
Nova Conductors
Authorized Procurement Solutions
Aranea Global
Argo Parts USA
Continental Prestige Electronics
Perfect Parts
Assy Fe
The high maximum supply voltage allows for a wide range of input power options, making this sensor versatile and adaptable to different systems.
The straight port type simplifies installation and ensures a secure connection, reducing the likelihood of leakage or malfunctions.
With a compact body width, this sensor can be easily integrated into tight spaces or applications where size is a constraint.
The piezoresistive pressure sensor type offers high accuracy and reliability, making this product suitable for critical pressure measurement applications.
The low linearity error of 0.2% ensures precise and consistent pressure readings, making this sensor highly dependable in various industrial settings.
The slim body height allows for easy installation and minimizes space requirements, making this sensor ideal for compact systems or machinery.
The rectangular package shape lends itself to easy mounting and ensures a secure fit within the system, enhancing overall durability and performance.
The high maximum operating temperature range allows this sensor to be used in harsh environments without compromising its accuracy or reliability.
The precise output range provides accurate pressure readings, enabling users to monitor and control pressure levels effectively in real-time.
The analog voltage output type simplifies signal processing and integration with various control systems, enhancing the sensor's compatibility and functionality.
The fast response time of 100 microseconds enables this sensor to quickly detect and react to pressure changes, crucial for applications requiring rapid feedback.
The low minimum operating temperature ensures reliable performance in cold environments or during temperature fluctuations, enhancing the sensor's overall durability.
The matte tin terminal finish provides a durable and corrosion-resistant connection, ensuring long-term reliability and stability in various operating conditions.
The maximum pressure range of 1 Psi allows this sensor to measure a wide range of pressure levels accurately, making it suitable for diverse applications.
The plastic housing offers a lightweight and durable solution, protecting the internal components and enhancing the sensor's longevity in challenging environments.
The ability to measure pressure as low as 0 Psi makes this sensor versatile for applications requiring precise pressure monitoring at very low levels.
The low nominal offset of 0mV minimizes errors and ensures accurate measurements, making this sensor a reliable choice for critical pressure sensing applications.
The differential pressure sensing mode allows this sensor to measure pressure variances between two points, providing valuable insights into system performance and efficiency.
The compact body length or diameter makes this sensor easy to install and suitable for applications where space is limited, without compromising performance.
The solder termination type ensures a secure and reliable connection, preventing signal loss or interference during operation, enhancing the sensor's overall accuracy.
The through-hole mounting feature simplifies installation and ensures a stable and secure fit within the system, reducing the risk of movement or misalignment.
Pressure Sensors SDX01D4-A attributes and parameters. Explore more Pressure Sensors devices from Honeywell Sensing And Control
Additional Features:
Body Width:
Body Height:
Body Length/Diameter:
Housing:
JESD-609 Code:
Linearity (%):
Mounting Feature:
Nominal Offset:
Maximum Operating Temperature:
Minimum Operating Temperature:
Output Range:
Output Type:
Package Shape or Style:
Port Type:
Maximum Pressure Range:
Minimum Pressure Range:
Pressure Sensing Mode:
Response Time:
Sensors or Transducers Type:
Maximum Supply Voltage:
Terminal Finish:
Termination Type:
PCN Assembly/Origin - Temperature verification process chg 29/MAR/2022
Honeywell traces its roots to 1885 with Albert Butz's firm, Butz-Thermo Electric Regulator, which produced a predecessor to the modern thermostat. Today, Honeywell is a global multi-industry behemoth with one of the largest installed bases of equipment. The firm operates through four business segments, including aerospace, building technologies, performance materials and technologies, and safety and productivity solutions. In recent years, the firm has made several portfolio changes, including the addition of Intelligrated in 2016, as well as the spins of Garrett Technologies and Resideo in 2018. In 2019, the firm launched Honeywell Forge, its enterprise performance management software solution that leverages the firm's domain expertise in buildings, airlines, and critical infrastructure.
LL4148
Daco Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
1N4148
Transys Electronics
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
DS18B20Z+T&R
Analog Devices
DS18B20Z+T&R by Analog Devices is a 12-bit temperature sensor with 1-Wire interface. It operates b/w -55 to 125°C, offering ±0.5°C accuracy. The sensor comes in a plastic package suitable for surface mount applications, with a max supply voltage of 5.5V and min of 3V.
LM555CMX
Onsemi
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
Compensated Devices
RECTIFIER DIODE; Terminal Position: UPPER; Terminal Form: NO LEAD; No. of Terminals: 1; Surface Mount: YES; Package Shape: SQUARE;
Temic Semiconductors
2N7002
Nte Electronics
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Transistor Application: SWITCHING; Maximum Drain Current (ID): .115 A; No. of Terminals: 3;
1N5819HW-7-F
Diodes Incorporated
1N5819HW-7-F by Diodes Inc. is a Schottky rectifier diode with 40V reverse test voltage, 1A output current, and 0.75V forward voltage. It's a surface mount device in a small outline package ideal for efficiency applications at temperatures ranging from -65 to 125°C.
DS18B20Z
Dallas Semiconductor
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 8; Package Shape or Style: RECTANGULAR; Housing: PLASTIC; Maximum Accuracy (Cel): 0.50;
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.
Supertex
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; No. of Elements: 1; Maximum Feedback Capacitance (Crss): 5 pF;
OPA2227UA
Burr-Brown Corporation
OPERATIONAL AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
E8WSDC12-32.768KTR
Abracon
Abracon's E8WSDC12-32.768KTR crystal oscillator offers 20 ppm frequency tolerance, 144% stability, and 70000 ohm series resistance. Ideal for applications requiring precise timing at 0.032768 MHz, such as IoT devices and communication systems.
LM555CM
Renesas Electronics
Analog Waveform Generation Functions; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
BAV99
Itt Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
SMBJ18CA
Jgd Semiconductors
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Polarity: BIDIRECTIONAL; Maximum Clamping Voltage: 29.2 V; Nominal Breakdown Voltage: 21.2 V; Maximum Repetitive Peak Reverse Voltage: 18 V;
SS14
General Instrument
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
Frontier Electronics
LM358N
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
ULN2803A
Allegro MicroSystems
NPN; Configuration: 8 BANKS, DARLINGTON WITH BUILT-IN DIODE AND RESISTOR; Surface Mount: NO; Maximum Collector Current (IC): .5 A; Maximum Operating Temperature: 85 Cel; Terminal Form: THROUGH-HOLE;
SDX15G2
Honeywell Sensing And Control
SDX15G2 by Honeywell is a piezoresistive pressure sensor with 0.2% linearity, operating b/w -40 to 85°C. It has a max pressure range of 15 psi and outputs analog voltage in the range of 86.85-93.15mV. Ideal for applications requiring precise pressure measurement in industrial settings.
BMP180
Robert Bosch
BMP180 by Robert Bosch is a pressure sensor with 19-bit resolution, operating b/w -40 to 85°C. It has a max pressure range of 15.95 Psi and uses a 2-wire interface for digital output. Ideal for applications requiring precise pressure measurements in compact spaces.
1800-07G-K1L-B
Honeywell Sensing And Control's 1800-07G-K1L-B is a piezoresistive pressure sensor with a range of 0-30 Psi. It operates b/w -40 to 121 °C, with response time of 1000 us. Ideal for applications requiring precise pressure sensing in gage mode with low current consumption at 2 mA.
PX3AN1BS025BSCHX
PX3AN1BS025BSCHX by Honeywell is a pressure sensor with 0.25% accuracy, 4-20mA output range, and 1/4-18 NPT port type. Ideal for industrial applications requiring precise pressure monitoring in sealed gage mode.
HSCSAND1.6BA2A3
Honeywell Sensing And Control's HSCSAND1.6BA2A3 is a 12-bit pressure sensor with 0.25% accuracy, operating at -20 to 85°C. It features a digital voltage output range of 0.66-2.64V and uses I2C interface for communication. Ideal for applications requiring precise pressure sensing in a compact rectangular package with barbed port type.
ABPDANT010BGAA3
ABPDANT010BGAA3 by Honeywell Sensing And Control is a pressure sensor with a max supply voltage of 3.6V and an accuracy of 0.25%. It is commonly used in applications requiring pressure sensing, such as automotive and industrial systems.
MPXA6115A6U
Freescale Semiconductor
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: SURFACE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: SQUARE; Output Range: 0.20-4.80V; Nominal Offset: 0.20V;
HSCDRRN005NDAA5
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG OUTPUT; Package Shape or Style: RECTANGULAR; Minimum Supply Voltage: 4.95 V; Maximum Accuracy (%): 0.25;
NPP-301A-200AT
Amphenol
NPP-301A-200AT by Amphenol is a pressure sensor with a max supply voltage of 10V and an output range of 40-80mV. It is commonly used in applications requiring absolute pressure sensing, such as automotive or industrial systems.
DLC-L01G-U2
DLC-L01G-U2 by Amphenol is a 16-bit pressure sensor with a max supply voltage of 3.6V and output type as digital. It operates in a temperature range from -40 to 85°C, with pressure sensing mode as gage. Ideal for applications requiring precise pressure measurements in compact spaces due to its small body dimensions of 7mm x 3.5mm x 7 inch.
MPXAZ6115AC6U
Motorola
MPXAZ6115AC6U by Motorola is a pressure sensor with 1.5% max accuracy and 16.67 Psi max pressure range. It operates b/w -40 to 125 °C, providing an analog voltage output from 0.20-4.70V. Ideal for applications requiring precise pressure measurement in various industries like automotive and industrial automation due to its high sensitivity and compact design.
LPS25HBTR
STMicroelectronics
LPS25HBTR by STMicroelectronics is a 24-bit digital output pressure sensor with a max supply voltage of 3.6V and operating temperature range from -30 to 105°C. It features an absolute pressure sensing mode, with a max pressure range of 18.27 Psi and min of 3.77 Psi, making it ideal for applications requiring precise pressure measurements in various environments.
NPC-1210-015-D-3-S
Ge Sensing
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: VOLTAGE OUTPUT; Package Shape or Style: SQUARE; Output Range: 75-150mV; Maximum Operating Temperature: 125 Cel;
MPXV5100GC6U
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: SURFACE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: SQUARE; Output Range: 0.20-4.70V; Port Type: BARBED;
89-05KS-4R
TE Connectivity
TE Connectivity's 89-05KS-4R is a piezoresistive pressure sensor with 5V max supply voltage, 1/4-18 NPT port type, and 0.25% linearity. Ideal for applications requiring precise pressure measurement in environments ranging from -40°C to 125°C.
PX3AN1BS035BSCHX
PX3AN1BS035BSCHX by Honeywell is a pressure sensor with 0.25% accuracy, 4-20mA output range, and 1/4-18 NPT port type. Ideal for industrial applications requiring precise pressure monitoring in harsh environments. Operates b/w -40 to 125 °C with a quick response time of 2000 us.
MPX2102AP
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Output Range: 0-40mV; Body Length/Diameter: 29.46 mm; Additional Features: TEMPERATURE COMPENSATED;
ABP2MDAN004ND2B3XX
Honeywell
Honeywell ABP2MDAN004ND2B3XX is a 14-bit pressure sensor with 0.25% accuracy, operating b/w -40 to 110°C. It features a digital voltage output range of 0.66-2.64V and uses I2C interface for communication. Ideal for applications requiring precise pressure sensing in a compact rectangular package.
MPXV5100GC7U
NXP Semiconductors
The NXP Semiconductors MPXV5100GC7U is a pressure sensor with 2.5% accuracy, operating voltage range of 4.75-5.25V, and output range of 0.20-4.70V. Ideal for applications requiring precise pressure measurement in the range of -40 to 125°C, such as automotive systems and industrial equipment monitoring.
ABP2DSNT150PG2A3XX
Honeywell ABP2DSNT150PG2A3XX is a 14-bit pressure sensor with 0.25% accuracy, operating from -40 to 110°C. It features a digital voltage output range of 0.66-2.64V and max pressure range of 150 psi. Ideal for applications requiring precise pressure measurements in various industries.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
SDX05D4-A
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: RECTANGULAR; Output Range: 59.40-60.60mV; Housing: PLASTIC;
SDX01D4
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: RECTANGULAR; Output Range: 17.37-18.18mV; Body Width: 11.94 inch;
SDX01G2-A
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: RECTANGULAR; Output Range: 17.82-18.80mV; Linearity (%): 0.2;
SDX01G2
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: RECTANGULAR; Output Range: 17.37-18.18mV; Linearity (%): 0.2;
SDX05D4
SDX05D4 by Honeywell is a piezoresistive pressure sensor with 0.2% linearity, operating b/w -40 to 85°C. It has a max pressure range of 5 Psi and output range of 57.90-62.10mV, making it ideal for applications requiring precise analog voltage output in various industries.
SDX05G2
PRESSURE SENSOR,PIEZORESISTIVE; Mounting Feature: THROUGH HOLE MOUNT; Output Type: ANALOG VOLTAGE; Package Shape or Style: RECTANGULAR; Output Range: 57.90-62.10mV; Maximum Operating Temperature: 85 Cel;
SDX05G2-A
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