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
Vishay Intertechnology's BFC280811339 is a variable capacitor with a max capacitance of 33pF and rated DC voltage of 250V. Ideal for PCB mounting, it operates b/w -40°C to 70°C making it suitable for various electronic applications requiring precise capacitance adjustments.
Median Price
$7.620
Lifecycle Status
Suppliers In-Stock
11
In-Stock Inventory
1k+
Arrow
1+ parts
$5.294
100+ parts
$4.040
1k+ parts
$3.720
10k+ parts
$3.621
Farnell
$5.720
$3.500
$3.190
$3.120
DigiKey
$4.651
$4.244
$4.066
Mouser Electronics
$4.660
$4.250
$4.240
Element14
$8.770
$5.930
$5.360
$4.860
Newark
$9.870
$6.320
$5.580
$5.500
Verical
-
Nova Conductors
$3.424
VNN
Vyrian
LIBRA Elektronik GmbH
Aranea Global
$3.356
$3.221
Ampacity Inc.
$3.640
Continental Prestige Electronics
$4.090
$3.330
$2.700
$2.590
Polypropylene is known for its high insulation resistance and low dielectric loss, making it a suitable choice for applications requiring stable and reliable capacitance.
Bulk packing allows for cost-effective and efficient handling of components in manufacturing processes.
PCB mount style enhances ease of installation and integration into existing circuit designs.
Offers a wide range of capacitance values, allowing for flexibility in tuning circuits to specific requirements.
Can withstand higher temperatures, making it suitable for applications where elevated temperatures may be encountered.
Variable capacitors provide the ability to fine-tune capacitance levels, making them ideal for applications requiring precise adjustments.
Can operate in low temperature environments, increasing the versatility of the product for various applications.
Low minimum capacitance value allows for applications where very small capacitance levels are required.
Compact size enables easy integration into space-constrained designs.
Sleek width dimension supports seamless installation in confined spaces.
Optimal length for balancing between compactness and functionality in various circuit configurations.
High-rated DC voltage ensures the capacitor can handle applications with higher voltage requirements.
Trimmer & Variable Capacitors BFC280811339 attributes and parameters. Explore more Trimmer & Variable Capacitors devices from Vishay Intertechnology
Maximum Capacitance:
Minimum Capacitance:
Capacitor Type:
Dielectric Material:
Height:
Length:
Maximum Operating Temperature:
Minimum Operating Temperature:
Package Style (Meter):
Packing Method:
Rated DC Voltage (URdc):
Size Code:
Width:
BFC280811339 Capacitors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8532.30.00.90
SB
PCN Design/Specification - MKT,BFC Series 04/Jun/2014
Vishay Intertechnology, Inc. is a renowned American manufacturer of discrete semiconductors and passive electronic components that have been used in many consumer products and industrial applications worldwide. Founded by Polish-born businessman Felix Zandman in 1962, Vishay has grown to become one of the world's largest manufacturers of these components, with a strong presence in every major market around the globe. The company also offers value-added solutions such as its patented passive components, replacing a number of legacy parts with more reliable, cost effective solutions.
Executive Chairman of the Board, Chief Business Development Officer
Marc Zandman
Chief Executive Officer, President, and Director
Joel Smejkal
Executive Vice President and Chief Financial Officer
Lori Lipcaman
Itzehoe - Fab Phase 1
Fabrication
Fab Initiation
2025
Germany
Itzehoe
Wafer Capacity
US - Fab 3
1986
USA
Santa Clara
24,500
US - Fab 2
1972
8,000
Austria
1984
Vöcklabruck
25,000
Taiwan
1967
Hsintien
12,000
Italy - Fab 8
1961
Canada
Torino
15,000
Israel
2000
Yokneam Illit
400
2N2222A
Taitron Components
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; No. of Terminals: 3;
Swampscott Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
Micro Commercial Components
Small Signal Bipolar Transistors; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Collector Current (IC): .8 A; JESD-609 Code: e0;
M24308/2-1F
Tyco Electronics Amp
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; IEC Conformity: NO; Mixed Contacts: NO; Empty Shell: NO;
CL10B104KB8NNNC
Samsung Electro-mechanics
CL10B104KB8NNNC by Samsung Electro-mechanics is a ceramic capacitor with capacitance of 0.1uF and rated DC voltage of 50V. It has a negative tolerance of 10% and temperature coefficient of 15ppm/°C, suitable for surface mount applications in various electronic devices. With dimensions of 1.6mm x 0.8mm x 0.9mm, it operates b/w -55 to 125 °C providing stable performance in compact designs.
CRG0805F10K
TE Connectivity
TE Connectivity's CRG0805F10K is a 10000 ohm fixed resistor with 1% tolerance. It operates b/w -55 to 155 °C and has a power dissipation of 0.125 W. Ideal for surface mount applications in various electronic circuits due to its compact size and high temperature rating.
STM32H753IIK6
STMicroelectronics
STM32H753IIK6 by STMicroelectronics is a 32-bit microcontroller with 176 terminals, operating at up to 48 MHz. It features 20-Ch 16-Bit ADCs, 2-Ch 12-Bit DACs, and peripherals like CAN, ETHERNET, and USB. Ideal for industrial applications requiring high-speed processing and extensive connectivity options.
LL4148-GS08
Vishay Telefunken
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
MBRS130LT3G
Onsemi
MBRS130LT3G by Onsemi is a Schottky rectifier diode with a max output current of 1A and forward voltage of 0.445V. It operates b/w -65 to 125°C, has a reverse test voltage of 30V, and is ideal for power applications due to its small outline package style.
LM555CN
Rochester Electronics
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Shape: RECTANGULAR; Surface Mount: NO; No. of Functions: 1;
1N4148
Hitano Enterprise
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Panjit International
1N4148WS
Rectron
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
SPC TECHNOLOGY/ MULTICOMP
M39029/56351
Souriau
CONNECTOR ACCESSORY; MIL Conformity: YES; Contact Gender: FEMALE; Insertion Tools: M81969/14-10; Tool Settings: M22520/2-10; DIN Conformity: NO;
2N7002
Diodes Incorporated
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Terminal Form: GULL WING; JESD-30 Code: R-PDSO-G3;
Tak Cheong Electronics Holdings
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
SS14
Changzhou Starsea Electronics
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
ROHM
Secos
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .3 W; Maximum Drain Current (ID): .115 A; Maximum Drain-Source On Resistance: 7.5 ohm;
V82ZC4X1347
Littelfuse
VARIABLE CAPACITOR; JESD-609 Code: e0; Manufacturer Series: V8ZA05P; Terminal Finish: Tin/Lead (Sn/Pb);
JZ400
Knowles
VARIABLE CAPACITOR; Mounting Feature: SURFACE MOUNT; Rated DC Voltage (URdc): 125 V; Maximum Operating Temperature: 85 Cel; Terminal Shape: WRAPAROUND; Height: 1.45 mm;
V620ZC05X1347
VARIABLE CAPACITOR; Terminal Finish: Tin/Lead (Sn/Pb); Manufacturer Series: V8ZA05P; JESD-609 Code: e0;
V100ZT05X1347
TZ03Z500FR169
Murata Manufacturing
TZ03Z500FR169 by Murata Manufacturing is a ceramic variable capacitor with a capacitance range of 6 pF to 50 pF. It has a max operating temperature of 85°C and can handle a rated DC voltage of 50 V. This snap-in capacitor is commonly used in through-hole mount applications.
V8ZC05X1347
V68ZU10X1347
VARIABLE CAPACITOR; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb); Manufacturer Series: V8ZA05P;
V12ZU2X2855
VARIABLE CAPACITOR; Terminal Finish: Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier; Manufacturer Series: V8ZA05P; JESD-609 Code: e0;
V47ZT1X1347
VARIABLE CAPACITOR; Terminal Finish: Tin/Lead (Sn/Pb); JESD-609 Code: e0; Manufacturer Series: V8ZA05P;
V68ZC20X1347
VARIABLE CAPACITOR; Manufacturer Series: V8ZA05P; Terminal Finish: Tin/Lead (Sn/Pb); JESD-609 Code: e0;
V100ZU3X2855
VARIABLE CAPACITOR; Manufacturer Series: V8ZA05P; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier;
V27ZT05X1347
V12ZT05X1347
VARIABLE CAPACITOR; Manufacturer Series: V8ZA05P; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb);
JZ300HV
Knowles Precision Devices
JZ300HV by Knowles Precision Devices is a SMT variable capacitor with 5.5-30 pF capacitance range, 350V URdc, and -40 to 85°C operating temperature. Ideal for applications requiring compact size and precise tuning in RF circuits.
V47ZC05X2855
VARIABLE CAPACITOR; Terminal Finish: Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier; JESD-609 Code: e0; Manufacturer Series: V8ZA05P;
CTZ2E-10A-W2-P
KYOCERA AVX
CTZ2E-10A-W2-P by KYOCERA AVX is a 10pF VARIABLE CAPACITOR with -40 to 85°C temp range. WRAPAROUND terminals for SURFACE MOUNT applications at 25V DC. Ideal for compact electronic devices requiring precise capacitance adjustments.
V56ZU20X2855
V8ZU2X2855
VARIABLE CAPACITOR; JESD-609 Code: e0; Terminal Finish: Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier; Manufacturer Series: V8ZA05P;
V220ZT05X1347
V18ZU1X2855
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
BFC280832659
Vishay Intertechnology
Vishay Intertechnology's BFC280832659 is a variable capacitor with 5.5-65 pF capacitance range, ideal for PCB mounting applications. With -40 to 85°C operating temperature range and 150V rated DC voltage, it suits various electronic circuits requiring precise tuning capabilities. The trimmer capacitor features polypropylene dielectric material and matte tin terminal finish for reliable performance in compact designs.
BFC280908002
Vishay Intertechnology's BFC280908002 is a PCB mount variable capacitor with dielectric material PTFE. It has a capacitance range of 4-38 pF, rated for 250V DC. Ideal for temperature-sensitive applications due to its wide operating range (-40 to 125°C) and through-hole mounting feature.
BFC280908003
Vishay Intertechnology's BFC280908003 is a PCB mount variable capacitor with 5-57 pF capacitance range. Rated for 250V, it operates b/w -40 to 125°C making it ideal for temperature-sensitive applications. With through-hole mounting and PTFE dielectric material, it suits various electronic circuit designs.
BFC280905217
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 300 V; Maximum Operating Temperature: 125 Cel; Dielectric Material: POLYTETRAFLUOROETHYLENE; Package Style (Meter): PCB Mount;
BFC280811229
Vishay Intertechnology's BFC280811229 is a variable capacitor with 2.5-22 pF capacitance range, ideal for PCB mounting applications. With a rated DC voltage of 250 V, it operates b/w -40 to 70°C temperatures. This trimmer capacitor made of polypropylene is suitable for various electronic circuit tuning needs.
BFC280905215
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 300 V; Maximum Operating Temperature: 125 Cel; Dielectric Material: POLYTETRAFLUOROETHYLENE; Maximum Capacitance: 3.5 pF;
BFC280831659
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 150 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYCARBONATE; Height: 11 mm;
BFC280823279
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 150 V; Maximum Operating Temperature: 70 Cel; Dielectric Material: POLYPROPYLENE; Multiturn: 0;
BFC280820209
Vishay Intertechnology's BFC280820209 is a variable capacitor with a capacitance range of 4-20 pF, suitable for PCB mounting. With a rated DC voltage of 150 V, it operates b/w -40 to 70°C making it ideal for temperature-sensitive applications in electronics. The compact size (7.3 x 5.5 x 7 mm) and through-hole mounting feature make it versatile for various circuit designs.
BFC280909002
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 125 Cel; Dielectric Material: POLYTETRAFLUOROETHYLENE; Multiturn: 0;
BFC280832409
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 150 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYPROPYLENE; Width: 10.6 mm; Series: BFC2 808-10MM;
BFC280811004
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYCARBONATE; Series: BFC2 808-7.5MM;
BFC280811006
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYETHYLENE TEREPHTHALATE; Size Code: 3432; Height: 10 mm;
BFC280811109
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 70 Cel; Dielectric Material: POLYPROPYLENE; Manufacturer Series: BFC280811109; Maximum Capacitance: 10 pF;
BFC280811159
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 70 Cel; Dielectric Material: POLYPROPYLENE; Manufacturer Series: BFC280811159; Packing Method: Bulk;
BFC280811279
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYCARBONATE; Minimum Operating Temperature: -40 Cel;
BFC280811409
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYCARBONATE; Multiturn: 0;
BFC280811509
VARIABLE CAPACITOR; Mounting Feature: THROUGH HOLE MOUNT; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYCARBONATE; Package Style (Meter): PCB Mount;
BFC280811558
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 85 Cel; Dielectric Material: POLYETHYLENE; Size Code: 3432; Terminal Finish: Matte Tin (Sn) - with Nickel (Ni) barrier;
BFC280851229
VARIABLE CAPACITOR; Rated DC Voltage (URdc): 250 V; Maximum Operating Temperature: 70 Cel; Dielectric Material: POLYPROPYLENE; Minimum Capacitance: 2.5 pF; Length: 8.6 mm;
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