Board Mount Humidity Sensors Intermediate Humidity and Temperature Sensor Humidity, Temperature 0 ~ 100% RH I2C ±1.8% RH 4 s Surface Mount The SHT41-AD1B-R2 is a fully calibrated, low-power environmental sensor that measures relative humidity (RH) and temperature. It integrates sensing elements, signal processing, and a digital interface into a small surface-mount package, making it ideal for space-constrained designs. Key Features Sensor Type: Digital humidity and temperature sensor Interface: I²C (easy MCU integration) Supply Voltage: ~1.08 V to 3.6 V Humidity Accuracy: up to ±1.8% RH (typical) Temperature Accuracy: up to ±0.2 °C (typical) Response Time: Fast measurement and low latency Power Consumption: Ultra-low, suitable for battery devices Package: DFN (compact, ~1.5 × 1.5 mm) Factory Calibration: No external calibration required Functional Overview The sensor uses capacitive humidity sensing combined with a bandgap temperature sensor. Internal electronics convert these measurements into digital data via I²C, eliminating the need for external ADCs or complex signal conditioning. Design Advantages Small footprint for compact PCBs Low power consumption for IoT and portable devices High reliability with long-term stability Fast response time for real-time monitoring Simple integration with microcontrollers Typical Applications IoT and smart home devices HVAC and climate control systems Wearables and portable electronics Industrial monitoring systems Environmental data logging #CommonPartsLibrary #Sensors,-Transducer #Humidity #Moisture-Sensor #SHT4x

Battery Battery Balancer IC Multi-Chemistry 48-eLQFP (7x7) #CommonPartsLibrary #IntegratedCircuit #Powermanagement #BatteryManagement

Battery Battery Monitor IC Multi-Chemistry 14-TSSOP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-Management #BQ34Z100

Battery Battery Monitor IC Lithium Ion 12-SON (2.5x4) #commonpartslibrary #integratedcircuit #powermanagement #batterymonitor

Battery Battery Monitor IC Lithium Ion 9-DSBGA The BQ27220YZFR is a highly integrated single-cell battery fuel gauge IC developed for rechargeable lithium-ion and lithium-polymer battery applications. The device utilizes Texas Instruments’ Impedance Track™ algorithm to provide highly accurate battery capacity measurement, state-of-charge estimation, runtime prediction, and battery health monitoring across varying load and temperature conditions. The device is designed for compact portable electronics, wearable devices, IoT products, handheld instruments, and low-power embedded systems requiring precise battery monitoring and extended operating life. The BQ27220YZFR supports system-side fuel gauging without requiring battery pack-side electronics, simplifying battery integration and reducing overall system cost. The fuel gauge continuously monitors battery voltage, current, and temperature to estimate available capacity, remaining runtime, full charge capacity, and state-of-health information. Integrated low-power operation enables ultra-low standby current consumption suitable for always-on battery-powered products. Communication with the host processor is implemented through a standard I²C interface, allowing configuration access, telemetry reporting, and battery parameter monitoring. The device also integrates protection and alert functionality through programmable interrupt outputs and battery condition monitoring features. The BQ27220YZFR is optimized for use with single-cell lithium-based chemistries and supports learning cycles for adaptive battery characterization over product lifetime. Internal data flash memory stores battery profile information and calibration parameters to improve long-term gauging accuracy. The device is supplied in a compact lead-free wafer chip-scale package suitable for space-constrained PCB designs and portable electronics requiring minimal footprint and low-profile assembly. Electrical Characteristics Device Type Single-cell battery fuel gauge and battery monitor IC Battery Chemistry Support Lithium-ion and lithium-polymer rechargeable batteries Input Voltage Range Supports single-cell battery operation Fuel Gauging Method Impedance Track™ algorithm Communication Interface I²C serial interface Measurement Functions Battery voltage monitoring Battery current monitoring Battery temperature monitoring State-of-charge estimation Remaining capacity calculation Full charge capacity estimation State-of-health reporting Runtime prediction Power Consumption Ultra-low operating current for portable applications Temperature Monitoring External thermistor support Host Alert Features Interrupt and alert reporting capability Data Storage Integrated nonvolatile configuration memory Calibration Features Automatic learning and battery characterization support Protection Monitoring Battery condition and system monitoring functions Package Type DSBGA wafer chip-scale package Mounting Style Surface mount Operating Temperature Range Industrial temperature operation suitable for portable electronics Functional Features High-accuracy fuel gauging over battery lifetime Adaptive battery modeling and aging compensation Low-power operation for battery-powered systems Integrated battery profiling capability Real-time remaining runtime estimation Automatic battery learning cycles Compact PCB footprint for portable devices System-side implementation without smart battery pack requirement Programmable battery alert functionality Support for low-power embedded processors and mobile systems Optimized for wearable and IoT applications RoHS compliant and lead-free package construction #commonpartslibrary #integratedcircuit #powermanagement #batterymanagement

300-mA linear battery charger with Power Path, integrated LDO and buck converter 1.8V default output 25-DSBGA -40 to 85 #CommonPartsLibrary #IntegratedCircuit #PowerManagement #BatteryCharger #BQ25120

Power Tracking 2A Battery Charger for Solar Power 12-DFN (3x3) #CommonPartsLibrary #IntegratedCircuits #BatteryChargers #LT3652

Battery Charger Li-Ion 280mA 4.2V T/R / IC BATT CHRGR LI+ 1-CELL SOT-23-5 #CommonPartsLibrary #BatteryManagement #IntegratedCircuit #MAX1555

Battery Holder -25℃~+85℃ Nickel SMD Blade Type Power Connector Assemblies RoHS #CommonPartsLibrary #Connector #battery-holder #21700

3A 125V 125V Fuse Board Mount (Cartridge Style Excluded) Surface Mount 2-SMD, Square End Block The CB61F3A-TR1 is a surface-mount fast-acting fuse from Eaton designed for overcurrent protection in compact electronic circuits. It belongs to the CB61F series of SMD “Brick” fuses and is commonly used in power supplies, battery management systems, consumer electronics, servers, and industrial equipment. Key Features Fast-acting fuse for rapid overcurrent protection Current rating: 3 A Voltage rating: 125 VAC / 125 VDC Surface-mount (SMD) package with compact 2410 footprint High interrupt rating: 100 A AC / 300 A DC Low cold resistance: approximately 0.025 Ω Reflow and wave solder compatible Lead-free, halogen-free, and RoHS compliant UL and safety agency approved (cULus, CQC, PSE) Suitable for: Power supplies Battery management systems (BMS) Consumer electronics Medical equipment Industrial electronics #CommonPartsLibrary #Fuse CB61F

High efficiency solar battery charger with embedded MPPT, TSSOP-8L, Tape and Reel #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-Charger #SPV1040