0.5 mOhms ±1% 5W Chip Resistor Nonstandard Automotive AEC-Q200, Current Sense Metal Element # Engineering Specification ## Product Name CSS4J-4026R-L500F ## General Description CSS4J-4026R-L500F is a precision four-terminal Kelvin current sense shunt resistor designed for accurate current measurement in high-performance electronic and power management systems. The device is intended for use in applications requiring low resistance sensing, high measurement accuracy, and stable thermal performance under varying electrical loads. The component utilizes a metal element resistive structure optimized for minimal resistance drift, reduced temperature effects, and consistent long-term stability. Its four-terminal Kelvin configuration separates current flow and voltage sensing paths, enabling improved measurement accuracy by eliminating errors caused by PCB trace and connection resistance. The device is widely used in power conversion systems, battery monitoring systems, motor control circuits, and industrial power electronics where precise current feedback is essential for control, protection, and monitoring functions. Its surface-mount construction supports compact PCB layouts and automated assembly processes while maintaining robust mechanical and electrical reliability. The design emphasizes efficient heat dissipation, stable electrical characteristics, and compatibility with demanding industrial and automotive environments. It is suitable for integration into systems requiring continuous current monitoring and high measurement fidelity. ## Functional Requirements ### Current Measurement The device shall provide accurate current sensing through a low-resistance conductive path designed for minimal measurement error. ### Kelvin Sensing Operation The device shall support four-terminal Kelvin sensing to improve measurement accuracy by separating current and voltage sensing paths. ### Signal Stability The device shall maintain stable sensing characteristics under varying load and thermal conditions. ### System Integration The component shall support integration into power electronics and embedded control systems requiring precise current feedback. ## Electrical Requirements ### Low Resistance Operation The device shall exhibit very low resistance to minimize power loss and maintain measurement accuracy. ### Thermal Stability The resistor shall maintain consistent electrical behavior under elevated operating temperatures and thermal cycling conditions. ### Power Handling The device shall support operation in high-current environments typical of power conversion and motor control systems. ### Measurement Accuracy The design shall support precise voltage drop measurement proportional to current flow for control and monitoring applications. ## Mechanical Requirements ### Surface Mount Construction The device shall be provided in a surface mount package suitable for automated PCB assembly. ### Structural Integrity The component shall maintain mechanical stability during assembly, operation, and thermal cycling. ### PCB Integration The device shall support direct integration into multilayer printed circuit board designs with optimized current path layout. ## Environmental Requirements ### Operating Conditions The device shall operate reliably under industrial and automotive environmental conditions. ### Thermal Performance The component shall maintain performance stability under continuous electrical loading and heat generation. ### Storage and Handling The device shall maintain physical and electrical integrity during storage, transport, and handling procedures. ## Quality Requirements ### Reliability The device shall provide long-term stability in resistance value and sensing accuracy under continuous operation. ### Verification Electrical, thermal, and mechanical characteristics shall be validated through appropriate testing and qualification procedures. ### Compliance The product shall conform to applicable standards for current sensing resistors used in industrial and automotive electronics. ## Documentation Requirements Technical documentation shall include application guidelines, layout recommendations for Kelvin sensing, thermal considerations, electrical characteristics, and integration practices for power electronics systems. ## Classification Tags #CSS4J4026RL500F #CurrentSenseResistor #ShuntResistor #KelvinSensing #FourTerminalResistor #PowerElectronics #BatteryManagement #MotorControl #PowerSupplyDesign #AnalogSensing #ElectricalEngineering #PCBDesign #EmbeddedSystems #IndustrialElectronics #AutomotiveElectronics #CommonPartsLibrary #ComponentLibrary #EngineeringSpecification #TechnicalDocumentation #HighCurrentSensing #PrecisionMeasurement #CircuitDesign

2 Position Wire to Board Terminal Block Horizontal with Board 0.375" (9.53mm) Through Hole # 1714971 ## General Description The 1714971 is a high-current printed circuit board terminal block manufactured by Phoenix Contact and designed for secure power and signal connections in industrial and commercial electronic equipment. The component utilizes a screw-clamp termination mechanism that provides reliable wire retention, low contact resistance, and long-term electrical stability. Its robust construction and through-hole mounting design make it suitable for applications requiring dependable field wiring, high-current handling capability, and resistance to mechanical stress. The terminal block is commonly used in power supplies, industrial automation systems, motor controllers, battery management systems, energy distribution equipment, instrumentation, and other applications requiring secure PCB-mounted power connections. ## Key Features ### Mechanical Characteristics * Through-hole PCB mounting * Screw-clamp wire termination * Side-entry wire connection * High-strength housing construction * Secure field-wire installation * Designed for repeated maintenance and servicing operations ### Electrical Characteristics * High-current carrying capability * Low contact resistance * Reliable electrical conductivity * Stable performance under demanding operating conditions * Suitable for power distribution and control applications ### Contact System * Corrosion-resistant conductive contacts * Screw-actuated clamping mechanism * Secure conductor retention * Reliable electrical connection during vibration and mechanical stress ### Material Construction * Industrial-grade thermoplastic housing * High-conductivity metal contacts * Flame-resistant insulation materials * RoHS-compliant construction ### Environmental Characteristics * Suitable for industrial environments * Resistant to mechanical wear * Durable under continuous operation * Designed for long service life ### Application Areas * Industrial Automation Equipment * Power Supply Systems * Motor Control Circuits * Battery Management Systems * Renewable Energy Equipment * Electrical Distribution Panels * Instrumentation Systems * Process Control Equipment * Embedded Power Electronics * Industrial Control Systems ### Compliance * RoHS Compliant * Lead-Free Compatible * Industrial-Grade PCB Interconnect Solution ## Manufacturer Phoenix Contact ## Product Family COMBICON PCB Terminal Blocks #PhoenixContact #1714971 #COMBICON #TerminalBlock #PCBTerminalBlock #ScrewTerminal #PowerConnector #IndustrialElectronics #PowerDistribution #IndustrialAutomation #EmbeddedSystems #ControlSystems #ElectronicsDesign #PCBAssembly #ElectricalEngineering

10 µH Shielded Drum Core, Wirewound Inductor 7.5 A 30mOhm Max Nonstandard # Engineering Specification ## Product Name SRP1038A-100M ## General Description SRP1038A-100M is a shielded surface mount power inductor designed for use in high-efficiency DC-DC conversion and power management applications. The device is intended to support energy storage and current smoothing functions in switching regulator circuits, where stable inductance performance and low power loss are critical. The inductor utilizes a ferrite core construction with a shielded magnetic structure to minimize electromagnetic interference and reduce magnetic flux leakage. This enables improved circuit density and reduced noise coupling in compact electronic assemblies. The design is optimized for use in high current power conversion systems, including buck converters, point-of-load regulators, and distributed power architectures. The component is widely used in industrial, automotive, telecommunications, and embedded systems where reliable energy transfer, thermal stability, and efficient power delivery are required. Its surface mount form factor supports automated PCB assembly and compact system integration while maintaining mechanical robustness under thermal and electrical stress. The design emphasizes low direct current resistance, high current handling capability, and stable inductance behavior under load conditions. It is suitable for applications requiring efficient power conversion with minimal energy loss and stable electromagnetic performance. ## Functional Requirements ### Energy Storage The device shall store energy in a magnetic field during switching operation in power conversion circuits. ### Current Filtering The device shall smooth current ripple in switching regulator applications to maintain stable output conditions. ### Electromagnetic Shielding The device shall reduce electromagnetic interference through a shielded magnetic structure. ### Power Conversion Support The component shall support efficient operation in DC-DC conversion systems. ## Electrical Requirements ### Inductive Performance The device shall provide stable inductance characteristics suitable for power conversion and filtering applications. ### Low Loss Operation The inductor shall minimize resistive and core losses to improve overall system efficiency. ### High Current Capability The device shall support operation under elevated current conditions typical of switching power supplies. ### Thermal Stability The inductor shall maintain performance consistency under thermal loading and temperature variation. ## Mechanical Requirements ### Surface Mount Package The device shall be supplied in a surface mount configuration suitable for automated PCB assembly processes. ### Structural Integrity The component shall withstand mechanical stress during assembly, operation, and thermal cycling. ### PCB Integration The design shall support compact layout integration in multilayer printed circuit board systems. ## Environmental Requirements ### Operating Conditions The device shall operate reliably under conditions typical of industrial and embedded electronic systems. ### Thermal Performance The component shall maintain stable operation under continuous power cycling and heat generation. ### Storage and Handling The device shall retain structural and electrical integrity during storage, transportation, and handling. ## Quality Requirements ### Reliability The inductor shall provide consistent long-term performance under continuous electrical and thermal stress. ### Verification Electrical and thermal characteristics shall be validated through appropriate qualification and testing procedures. ### Compliance The product shall conform to applicable standards for magnetic components used in power electronics applications. ## Documentation Requirements Technical documentation shall include application guidance, layout recommendations for switching power designs, thermal considerations, electrical characteristics, and integration practices for DC-DC converter systems. ## Classification Tags #SRP1038A100M #PowerInductor #ShieldedInductor #SMDInductor #MagneticComponent #EnergyStorageInductor #DCDCConverter #BuckConverter #PowerElectronics #SMPSDesign #ElectromagneticCompatibility #EMIShielding #PCBDesign #ElectricalEngineering #EmbeddedPower #IndustrialElectronics #AutomotiveElectronics #CommonPartsLibrary #ComponentLibrary #EngineeringSpecification #PowerManagement #CircuitDesign #HighCurrentInductor

470 nH Shielded Molded Inductor 9.1 A 8.36mOhm Max 1616 (4040 Metric) The XFL4015-471MEC specification establishes the engineering requirements for the designated electronic component, defining its intended functionality, mechanical characteristics, electrical performance, material requirements, manufacturing quality, and inspection criteria. This specification serves as the primary technical reference to ensure the component consistently meets design expectations, operational reliability, and applicable industry standards throughout production and field use. Engineering Requirements The component shall be manufactured using approved materials and controlled production processes to ensure consistent electrical and mechanical performance. All dimensions, tolerances, and physical characteristics shall conform to the latest approved engineering documentation. The component shall be suitable for its intended operating environment and shall maintain performance within the specified electrical and environmental conditions. Workmanship shall be free from defects including cracks, contamination, corrosion, deformation, or any condition that could adversely affect reliability or functionality. All manufacturing and inspection processes shall be performed using calibrated equipment and verified in accordance with established quality management procedures. Testing and validation shall confirm compliance with electrical, mechanical, and environmental performance requirements prior to product acceptance. Any deviation from this specification shall require formal engineering review, documented approval, and appropriate revision control before implementation. Documentation Supporting documentation shall include engineering drawings, material certifications, inspection reports, test records, process documentation, and revision-controlled manufacturing specifications. All documentation shall be maintained in accordance with the organization's quality management and document control requirements. Revision Control Changes to this specification shall be managed through the approved engineering change process to ensure traceability, technical accuracy, and continued compliance with applicable design and quality requirements. #EngineeringSpecification #TechnicalSpecification #ElectronicComponents #ElectricalEngineering #QualityControl #Manufacturing #EngineeringDocumentation #Compliance