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
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 250000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
Median Price
$2.540
Lifecycle Status
Suppliers In-Stock
14
In-Stock Inventory
1k+
Mouser Electronics
1+ parts
$4.120
100+ parts
$2.520
1k+ parts
$2.050
10k+ parts
$2.000
Newark
$4.470
$2.870
$2.400
$2.350
Element14
$5.960
$3.660
-
Master Electronics
$2.070
$1.800
$1.650
DigiKey
$1.980
Verical
$1.750
Chip1Stop
$2.080
Farnell
$3.000
$2.280
Nova Conductors
$1.834
Vyrian
VNN
IBS Electronics
TME
$2.440
$2.200
Semi Source
Netroflash
$1.798
$1.743
$1.706
Continental Prestige Electronics
$2.700
$1.120
$1.080
Perfect Parts
Variable Resistors 3266X-1-254LF attributes and parameters. Explore more Variable Resistors devices from Bourns
Orientation (Actuator):
Type (Actuator):
Construction:
Ganging Number:
JESD-609 Code:
Mounting Type:
No. of Terminals:
No. of Turns:
Maximum Operating Temperature:
Minimum Operating Temperature:
Height (Package):
Length (Package):
Shape (Package):
Package Style (Meter):
Width (Package):
Packing Method:
Rated Power Dissipation (P):
Rated Temperature:
Resistance:
Law Of Resistance:
Resistor Type:
Technology:
Temperature Coef (ppm/Cel):
Terminal Finish:
Terminal Shape:
Tolerance:
Operating Voltage:
3266X-1-254LF Resistors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8533.40.80.50
SB
8533.40.00.80
Bourns, Inc. is an American electronics company that develops, manufactures and supplies electronic components for a variety of industries including automotive, industrial, instrumentation, medical electronics, consumer equipment and portable electronics. Established in Altadena, California in 1947 by Marlan and Rosemary Bourns, graduates of the University of Michigan, the company was founded to develop and sell electronic components and sensors to the aerospace industry. Bourns has 15 manufacturing facilities around the world and has continued growing through the development of new products and technologies as well as through acquisitions. The company has approximately 9000 employees worldwide.
BAV99
ROHM
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
Temic Semiconductors
1N5819HW-7-F
SPC TECHNOLOGY/ MULTICOMP
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM7805CT
Integrated Circuit Technology
Other Regulators; No. of Terminals: 3; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %; Terminal Position: SINGLE; Operating Temperature (TJ-Min): 0 Cel;
SMBJ18CA
Multicomp Pro
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Diode Element Material: SILICON; Technology: AVALANCHE; Maximum Repetitive Peak Reverse Voltage: 18 V; Nominal Breakdown Voltage: 21.05 V;
1N4148WT
Eic Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
SS14
Rugao Dachang Electronic
RECTIFIER DIODE; Surface Mount: YES; Maximum Repetitive Peak Reverse Voltage: 40 V; Maximum Forward Voltage (VF): .55 V; No. of Elements: 1; Technology: SCHOTTKY;
LM2931AZ-5.0G
Onsemi
LM2931AZ-5.0G by Onsemi is a fixed positive single output LDO regulator with a nominal output voltage of 5V and max output current of 0.1A. It has a max dropout voltage of 0.6V, making it suitable for applications requiring stable power supply in temperature-sensitive environments up to 125°C. The package style is cylindrical with wire terminals, ideal for rail packing methods in various electronic devices.
KSZ9031RNXIC
Micrel
ETHERNET TRANSCEIVER; Temperature Grade: INDUSTRIAL; Terminal Form: NO LEAD; No. of Terminals: 48; Package Code: HVQCCN; Package Shape: SQUARE;
LM358M
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
2N7002
Micro Commercial Components
Small Signal Field-Effect Transistors; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Transistor Application: SWITCHING; Maximum Drain Current (ID): .34 A; Package Style (Meter): SMALL OUTLINE;
1N4148W-7-F
Diodes Incorporated
1N4148W-7-F by Diodes Inc. is a single rectifier diode with 0.715V max forward voltage and 100V max reverse voltage. Ideal for applications requiring fast switching speeds, it has a small outline package style and matte tin terminal finish, making it suitable for surface mount PCB designs.
1N4148
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
IRLML6402TRPBF
International Rectifier
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.3 W; Peak Reflow Temperature (C): 260; Package Style (Meter): SMALL OUTLINE;
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;
STMicroelectronics
LM358N
Intersil
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: THROUGH-HOLE; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR;
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;
1N4148WS
PT10MV10-103A2020-S
Amphenol
Amphenol's PT10MV10-103A2020-S is a 10000 ohm linear carbon potentiometer with 3 terminals. It has a tolerance of 20%, operates at temperatures from -25 to 70 °C, and can handle up to 200V. Ideal for PCB mounting applications requiring precise resistance adjustments in compact spaces.
T93YA103KT20
Vishay Sfernice
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 10000 ohm; Rated Power Dissipation (P): .5 W; Maximum Operating Temperature: 155 Cel; Tolerance: 10 %;
53C31K
Honeywell Sensing And Control
Honeywell Sensing And Control's 53C31K is a linear potentiometer with 1000 ohm resistance, 10% tolerance, and 2W power dissipation. It features a conductive plastic technology in a circular package for horizontal actuator orientation. Ideal for panel mounting applications with operating temperatures ranging from -55°C to 120°C.
M63M201KB40
Vishay Intertechnology
Vishay Intertechnology's M63M201KB40 is a CERMET variable resistor with 200 ohm resistance, 10% tolerance, and 0.5 W power dissipation. Ideal for PCB mounting, it operates b/w -55 to 125 °C and offers a 270° rotation angle.
P16NP103MAB15
Vishay Intertechnology's P16NP103MAB15 is a 10000 ohm CERMET POTENTIOMETER with linear resistance law, 20% tolerance, and 1W power dissipation. It has a circular package, panel mount style, and operates b/w -40 to 85 °C. Ideal for applications requiring precise voltage control in electronic circuits.
RK09K12C0A19
Alps Electric
POTENTIOMETER; Resistance: 10000 ohm; Maximum Operating Temperature: 70 Cel; Tolerance: 30 %; Size Code: 4339; Minimum Operating Temperature: -10 Cel;
P13LFL103MAB10
Vishay Intertechnology's P13LFL103MAB10 is a linear 10000 ohm potentiometer with 3 terminals. It has a rated power dissipation of 1.5W, operating voltage of 122.5V, and temperature coefficient of 150 ppm/°C. Ideal for panel mount applications requiring precise resistance adjustments in a compact cylindrical package.
8-1879321-8
TE Connectivity
POTENTIOMETER; Orientation (Actuator): HORIZONTAL; Dimensions: 13.75mm x 11.7mm x 5.1mm;
T93YA102KT20
Vishay Intertechnology's T93YA102KT20 is a 1000 ohm linear trimmer resistor with 21 turns, rated for temperatures b/w -55 to 125 °C. It features a CERMET technology in a rectangular package suitable for PCB mounting applications. The resistor has a tolerance of 10% and can operate at voltages up to 22.4 V, making it ideal for precision circuit adjustments.
93R1A-R22-A20L
Bourns
The Bourns 93R1A-R22-A20L is a linear cermet potentiometer with 100k ohm resistance, 10% tolerance, and 2W power dissipation. It operates b/w -40°C to 125°C, making it suitable for various panel mount applications requiring precise resistance adjustments in a compact form factor. The shaft actuator allows for easy adjustment with a rotation angle of 240°.
3048L-5-502
Bourns 3048L-5-502 is a compact potentiometer with 5000 ohm resistance, 20% tolerance, and 0.25 W power dissipation. Ideal for PCB mounting applications, it operates b/w -55 to 125 °C with a temperature coefficient of 1000 ppm/°C.
3296Z-1-502LF
Bourns 3296Z-1-502LF is a CERMET trimmer resistor with 5000 ohm resistance, 25 turns, and linear resistance law. It operates b/w -55 to 125 °C and has a tolerance of 10%. Ideal for applications requiring precise voltage adjustments in electronic circuits.
RK27112A00AK
Alps Alpine
Alps Alpine RK27112A00AK is a linear potentiometer with 100k ohm resistance, 20% tolerance, and 0.05W power dissipation. It has a shaft actuator, through-hole mounting, and PCB package style. Ideal for applications requiring precise voltage or current control in electronic circuits.
132B00102
POTENTIOMETER;
72PMR100KLFTB
Tt Electronics Plc
72PMR100KLFTB by Tt Electronics Plc is a linear cermet variable resistor with a diameter of 0.53 mm and 1 turn. It is commonly used in PCB mount applications, with an operating voltage of 200 V and a max temperature of 125 °C.
3310C-001-104L
Bourns 3310C-001-104L is a linear potentiometer with resistance of 100k ohm, rated power of 0.25W, and temperature coefficient of 1000 ppm/°C. It is used in PCB mount applications for precise control in devices requiring a 270° rotation angle.
3223W-1-102E
Bourns 3223W-1-102E is a CERMET trimmer resistor with 1000 ohm resistance, 11 turns, and linear resistance law. It operates b/w -65 to 150 °C and has a power dissipation of 0.125 W. Ideal for applications requiring precise voltage adjustments in compact SMT packages.
3856H286104A
Bourns 3856H286104A is a CERMET POTENTIOMETER with 100k ohm resistance, 10% tolerance, and 2W power dissipation. Linear construction, chassis mount package style. Ideal for precise voltage control in electronic circuits with operating temps from -65 to 125°C.
72XR10KLF
72XR10KLF by Tt Electronics Plc is a CERMET trimmer pot with 10000 ohm resistance, 3 terminals, and linear resistance law. It has a rated power dissipation of 0.5 W and operates b/w -55 to 125 °C. Ideal for PCB mounting applications requiring precise resistance adjustments.
P231-QC20BR100K
P231-QC20BR100K by Tt Electronics Plc is a 100000 ohm linear conductive plastic rotary potentiometer with 3 terminals. It has a tolerance of 20% and operates b/w -20 to 70 °C, making it suitable for panel mount applications requiring precise resistance adjustments in a compact package. With a rated power dissipation of 0.5 W and an angle of rotation of 260°, this potentiometer is ideal for various electronic devices.
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
3266W-1-103LF
Bourns 3266W-1-103LF is a CERMET multi-turn trimmer resistor with 10000 ohm resistance, 10% tolerance, and 0.25 W power dissipation. It has 12 turns, linear resistance law, and operates b/w -55 to 150 °C. Ideal for applications requiring precise voltage adjustments in electronic circuits.
3266W-1-104LF
Bourns 3266W-1-104LF is a CERMET trimmer resistor with 12 turns, 100k ohm resistance, and linear law. Ideal for applications requiring precise resistance adjustments in circuits with operating voltage up to 300V. Features include multi-turn construction, through-hole mounting, and temperature coefficient of 100 ppm/°C.
3266W-1-203LF
The Bourns 3266W-1-203LF is a multi-turn variable resistor with a resistance of 20000 ohm and a tolerance of 10%. It is commonly used in applications requiring precise voltage control, such as audio equipment and industrial automation systems.
3266W-1-502LF
Bourns 3266W-1-502LF is a CERMET trimmer resistor with 12 turns, 5000 ohm resistance, and linear law. It operates b/w -55 to 150 °C and has a power dissipation of 0.25 W. Ideal for applications requiring precise resistance adjustments in electronic circuits.
3266W-1-102LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 1000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266W-1-202LF
Bourns 3266W-1-202LF is a CERMET trimmer resistor with 12 turns, 2000 ohm resistance, and linear law. It operates b/w -55 to 150 °C and has a power dissipation of 0.25 W. Ideal for applications requiring precise resistance adjustments in electronic circuits.
3266W-1-503LF
Bourns 3266W-1-503LF is a CERMET trimmer resistor with 12 turns, 50k ohm resistance, and linear law. Ideal for applications requiring precise resistance adjustments in circuits with operating voltage up to 300V. Features multi-turn construction, through-hole mounting, and temperature coefficient of 100 ppm/°C.
3266W-1-501LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 500 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266X-1-103LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 10000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266W-1-504LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 500000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266X-1-501LF
Bourns 3266X-1-501LF is a 500 ohm, 12-turn linear trimmer resistor with CERMET technology. Operating voltage of 300V, rated power dissipation of 0.25W. Ideal for precise resistance adjustments in electronic circuits requiring high precision and reliability.
3266P-1-104LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 100000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266W-1-500LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 50 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266W-1-105LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 1000000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266W-1-201LF
Bourns 3266W-1-201LF is a CERMET trimmer resistor with 12 turns, 200 ohm resistance, and linear law. It operates b/w -55 to 150 °C and has a tolerance of 10%. Ideal for applications requiring precise resistance adjustments in circuits with up to 300 V operating voltage.
3266X-1-203LF
Bourns 3266X-1-203LF is a CERMET trimmer resistor with 12 turns, 20000 ohm resistance, and linear law. Ideal for applications requiring precise resistance adjustments in circuits with operating voltage up to 300V. Features multi-turn construction, -55 to 150 °C temperature range, and matte tin terminal finish.
3266X-1-102LF
3266P-1-503LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 50000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
3266X-1-503LF
3266X-1-202LF
TRIMMER; Mounting Type: THROUGH HOLE MOUNT; Resistance: 2000 ohm; Rated Power Dissipation (P): .25 W; Maximum Operating Temperature: 150 Cel; Tolerance: 10 %;
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