Resistors
A resistor is an electronic component that reduces the flow of current in a circuit. It is used to limit the amount of current flowing through a circuit, or to create a voltage drop in a circuit. One of the main uses of resistors is to protect components from too much current, which can cause damage or failure. Flux.ai is the world's largest community-driven public library of resistors, with footprints, symbols, datasheets, and simulation models. Whether you're an engineer working on a new design, or a student learning about electronics, Flux.ai is the go-to resource for all things resistor-related. With a wealth of information and resources available, you'll find everything you need to know about resistors, and more.
NCP81428MNTXG
Hot Swap Controller 1 Channel General Purpose 32-LQFN (5x5) The NCP81428MNTXG is a high-performance multi-phase synchronous buck controller designed for CPU, GPU, FPGA, ASIC, and high-current core power applications requiring accurate voltage regulation, fast transient response, and high efficiency. The device supports multi-phase operation with integrated gate drivers and advanced control architecture optimized for modern low-voltage, high-current power rails. It is intended for applications requiring dynamic voltage scaling, precise load-line regulation, and reliable system power management in computing, networking, telecommunications, and industrial platforms. The controller operates with external MOSFET stages and supports flexible power stage configuration for optimized thermal and efficiency performance. It incorporates differential voltage sensing, programmable protection features, current balancing between phases, and high-speed transient compensation to maintain stable operation under rapidly changing load conditions. Engineering Specification Manufacturer onsemi Manufacturer Part Number NCP81428MNTXG Device Type Multi-Phase Synchronous Buck Controller with Integrated Gate Drivers Control Topology Voltage Mode Multi-Phase PWM Control Phase Configuration Dual-Phase Controller Architecture Application Focus CPU Core Power GPU Core Regulation FPGA Power Rails ASIC Core Supplies High-Current DC-DC Regulation Input Supply Range Supports Low-Voltage Bias Supply Operation for Digital Power Systems Output Voltage Regulation Programmable Low-Voltage Output Regulation with Differential Remote Sense Capability Switching Frequency Programmable PWM Switching Frequency with Multi-Phase Interleaving Gate Driver Integration Integrated High-Side and Low-Side MOSFET Gate Drivers Current Sensing Supports Inductor DCR Sensing and Sense Resistor Current Monitoring Load-Line Support Programmable Load-Line Regulation and Droop Compensation Voltage Positioning Adaptive Voltage Positioning for Improved Transient Performance Protection Features Overcurrent Protection Overvoltage Protection Undervoltage Protection Thermal Protection Short-Circuit Protection Power-Good Monitoring Power Management Features Soft-Start Control Enable Functionality Phase Balancing Fault Monitoring Sequencing Support Compensation External Compensation Network Support for Loop Stability Optimization Efficiency Features Synchronous Rectification Support Multi-Phase Interleaving for Reduced Ripple Current Optimized Gate Drive Timing Package Type QFN Surface-Mount Package Mounting Type Surface Mount Technology Temperature Range Industrial Operating Temperature Range Target Applications Server Motherboards High-Performance Embedded Computing Networking Equipment Telecommunications Infrastructure Industrial Processing Systems Graphics and Accelerator Platforms #commonpartslibrary #integratedcircuit #powermanagement #hotswapcontrollers
2 Uses0 StarsINA187A3IDBVR
Current Sense Amplifier 1 Circuit Single-Ended SOT-23-6 The INA187A3IDBVR is a precision high-side and low-side current sense amplifier designed for accurate bidirectional current measurement in power management, motor control, battery monitoring, and industrial sensing applications. The device integrates a matched precision gain stage optimized for shunt resistor voltage amplification while maintaining excellent common-mode rejection and low offset drift. It supports wide common-mode input voltages, enabling current monitoring across supply rails in automotive, industrial, and embedded systems. The amplifier features fast response characteristics, low quiescent current consumption, and a compact surface-mount package suitable for space-constrained designs. Engineering Specification Device Type Precision Current Sense Amplifier Manufacturer Texas Instruments Manufacturer Part Number INA187A3IDBVR Amplifier Configuration Current shunt monitor with fixed gain Gain Variant High fixed gain configuration optimized for low-value shunt resistor sensing Input Measurement Capability Bidirectional current sensing Common-Mode Voltage Range Supports high-side and low-side sensing across wide supply rails Input Offset Characteristics Low offset voltage with low temperature drift for accurate current measurement Bandwidth Performance Wide bandwidth suitable for dynamic load and transient current monitoring Response Time Fast settling and propagation performance for real-time current feedback systems Power Supply Requirements Single-supply operation compatible with low-voltage logic systems Output Type Analog voltage output proportional to sensed shunt voltage Common-Mode Rejection High common-mode rejection ratio for stable operation in noisy environments Temperature Performance Industrial operating temperature range with stable gain accuracy over temperature Protection Features Robust input structure designed for high common-mode environments Package Type SOT-23 surface-mount package Mounting Method Surface mount technology Typical Applications Battery management systems, power distribution monitoring, motor current feedback, DC/DC converter monitoring, industrial automation, telecom power systems, and embedded power diagnostics. #commonpartslibrary #integratedcircuit #currentsenseamplifier
12 Uses0 StarsINA228AIDGSR
Power Supply Controller Digital Power Monitor 10-VSSOP The INA228AIDGSR is a high-precision digital power monitor and current-sense amplifier designed for accurate measurement of shunt voltage, bus voltage, current, power, energy, and charge in DC power systems. The device integrates a low-offset differential amplifier with high-resolution analog-to-digital converters and supports bidirectional current sensing across a wide common-mode voltage range. Communication is provided through an I²C- and SMBus-compatible digital interface, enabling direct telemetry integration into embedded control and battery management systems. The device is optimized for high-accuracy power monitoring applications requiring low drift, low offset, and high dynamic range. Integrated mathematical computation functions reduce host processor overhead by internally calculating current, power, accumulated energy, and charge values. Programmable conversion timing and averaging modes allow optimization between measurement speed and noise performance. The INA228AIDGSR is suitable for server power distribution, industrial automation, telecom infrastructure, automotive subsystems, battery-powered equipment, and precision instrumentation requiring real-time power analytics and fault monitoring. Engineering Specification Device Type Digital power monitor with integrated current-sense amplifier and high-resolution ADC. Measurement Functions Supports measurement of: Differential shunt voltage Bus voltage Current Power Energy accumulation Charge accumulation Temperature through external sensing methods Current Sensing Supports bidirectional current measurements using an external shunt resistor with programmable calibration scaling. ADC Architecture Incorporates high-resolution delta-sigma analog-to-digital converters with programmable conversion time and averaging configuration. Interface Uses I²C- and SMBus-compatible serial communication interface with programmable device addressing. Voltage Monitoring Supports high-side and low-side sensing across a wide common-mode input voltage range suitable for multi-rail power systems. Accuracy Features Includes: Low input offset voltage Low offset drift Precision gain architecture High measurement linearity Integrated calibration engine Power Computation Internally computes: Instantaneous power Average power Energy accumulation over time Charge accumulation over time Alert and Protection Features Provides programmable alert functionality for: Overcurrent Undervoltage Overvoltage Power threshold violations Conversion-ready indication Operating Modes Supports: Continuous conversion mode Triggered conversion mode Low-power shutdown mode Package Information Supplied in a compact VSSOP surface-mount package suitable for automated PCB assembly and space-constrained applications. Temperature Range Designed for operation across industrial temperature environments suitable for embedded and power-management systems. Typical Applications Battery management systems Power supply monitoring Server and telecom power rails Industrial control systems DC energy metering Embedded power analytics Automotive electronics Portable instrumentation #commonpartslibrary #integratedcircuit #powermanagement #powersupplycontroller
44 Uses0 StarsCFR-25JB-52-4K7
4.7kOhms ±5% 0.25W, 1/4W Through Hole Resistor Axial Automotive AEC-Q200 Carbon Film The CFR-25JB-52-4K7 is a through-hole carbon film resistor manufactured by YAGEO. It has a resistance value of 4.7 kΩ with a ±5% tolerance and is designed for general-purpose electronic circuits, including automotive and industrial applications. The resistor uses an axial leaded package and is compliant with AEC-Q200 automotive reliability standards. Key Features Resistance: 4.7 kΩ Tolerance: ±5% Power Rating: 0.25 W (1/4 W) Resistor Type: Carbon Film Package Type: Axial Through-Hole Operating Temperature: -55°C to +155°C Temperature Coefficient: -500 / +350 ppm/°C Automotive Grade: AEC-Q200 qualified Compact body size: approximately 2.4 mm × 6.3 mm Suitable for: General electronics Signal conditioning Pull-up/pull-down circuits Current limiting Automotive electronics #CommonPartLibrary #ThroughHole #Resistor #Axial
45 Uses0 StarsCFR-25JB-52-220R
220 Ohms ±5% 0.25W, 1/4W Through Hole Resistor Axial Automotive AEC-Q200 Carbon Film This component is a fixed-value carbon film resistor intended for general-purpose electronic circuits. It is designed to provide stable resistance with reliable performance under typical operating conditions. The resistor is suitable for applications requiring moderate precision and dependable thermal characteristics, making it appropriate for use in consumer electronics, control circuits, and signal conditioning. Its construction ensures consistent electrical behavior, good noise performance, and durability over time. Electrical Characteristics The nominal resistance value is two hundred twenty ohms. Tolerance is within a standard general-purpose range, suitable for non-critical precision applications. The resistor exhibits stable performance across typical ambient temperature variations, with predictable resistance drift characteristics inherent to carbon film technology. Power Rating The device is rated for low-power dissipation applications, consistent with standard small-form-factor through-hole resistors used in printed circuit board assemblies. Construction and Materials The resistor element is formed from a deposited carbon film on a ceramic substrate, providing a balance between cost, stability, and noise performance. Leads are axial and suitable for through-hole mounting. The body is coated for insulation and environmental protection. Environmental and Reliability Considerations The component is designed to operate reliably under standard environmental conditions, including moderate temperature and humidity ranges. It demonstrates acceptable long-term stability for general electronic use, with resistance changes remaining within specified tolerance limits over time. Applications Suitable for voltage division, current limiting, biasing, and general signal conditioning in analog and digital circuits where high precision is not critical. #CommonPartLibrary #ThroughHole #Resistor #Axial
38 Uses0 StarsCFR-25JB-52-680R
680 Ohms ±5% 0.25W, 1/4W Through Hole Resistor Axial Automotive AEC-Q200 Carbon Film The CFR-25JB-52-680R is a through-hole carbon film resistor manufactured by YAGEO. It provides a resistance value of 680 Ω with ±5% tolerance and is designed for general-purpose electronic circuits, signal conditioning, and current limiting applications. Key Features Resistance: 680 Ω Tolerance: ±5% Power Rating: 0.25 W (1/4 W) Resistor Type: Carbon film resistor Mounting Type: Through-hole / axial lead Package Style: Axial Operating Temperature: -55°C to +155°C Temperature Coefficient: -500 / +350 ppm/°C AEC-Q200 qualified for automotive-grade reliability RoHS compliant Typical Applications Current limiting Voltage divider circuits Pull-up / pull-down resistors General analog and digital electronics Automotive and consumer electronics Physical Characteristics Axial cylindrical body Approximate body size: 2.4 mm diameter × 6.3 mm length 2-terminal leaded package The component belongs to the through-hole resistor category and is commonly used in low-power electronic designs requiring stable and economical resistance values. #CommonPartsLibrary #Resistor #Axial
32 Uses0 Stars
