Buzzers Transducer, Externally Driven Piezo 3 V 5mA 4kHz 65dB @ 3V, 10cm Surface Mount Solder Pads #CommonPartsLibrary #Speaker #Alarms #Buzzers #Sirens #SMD

Surface-Mount Piezo Audio Transducer – Externally driven piezoelectric audio transducer designed for audible alerts, alarms, user notifications, medical devices, consumer electronics, and embedded systems. Operates at a 3 Vp-p rated drive voltage with an operating voltage range of 1 to 25 Vp-p, producing a minimum sound pressure level of 70 dBA at 10 cm with a 4 kHz ±500 Hz resonant frequency. Features 1 mA maximum current consumption, 12,000 pF ±30% capacitance, top sound port, and surface-mount (SMD) construction with 9 × 9 × 2.4 mm dimensions. Supports reflow soldering, utilizes an LCP housing with tin-plated brass terminals, and is specified for operation over a −30°C to +85°C temperature range. #PUIAudio #SMT0940T3VR #PiezoTransducer #PiezoBuzzer #AudioTransducer #SMDBuzzer #Alarm #AudibleIndicator #EmbeddedSystems #IndustrialElectronics #ConsumerElectronics #MedicalDevices

Temperature Sensor Digital, Local 0°C ~ 70°C 16 b 10-LGA (2x2) Digital temperature sensor designed for high-accuracy body temperature measurement with a ±0.1°C accuracy (from +30°C to +50°C). It operates from a 1.7 V to 3.6 V supply, communicates through an I²C-compatible interface, provides a 16-bit temperature output with 0.005°C resolution, and includes programmable high/low temperature alarms with an interrupt output. #TemperatureSensor #DigitalSensor #BodyTemperature #I2C #LowPower #AnalogDevices

868/915MHz SPI SMD LoRa Module E22-900M22S is a compact, industrial-grade LoRa® wireless transceiver module developed by Ebyte, based on the Semtech SX1262 RF chipset. Operating in the 868/915 MHz ISM band, it communicates through an SPI interface and is designed for long-range, low-power wireless data transmission. The module offers excellent receiver sensitivity, strong anti-interference performance, and supports both LoRa and FSK modulation, making it suitable for smart metering, industrial automation, IoT sensor networks, remote monitoring, and wireless control applications. Key Features Based on the Semtech SX1262 LoRa transceiver Operates in the 850–930 MHz frequency range (optimized for 868/915 MHz ISM bands) SPI interface with data rates up to 10 Mbps Maximum transmit power of +22 dBm (160 mW) Receiver sensitivity up to −147 dBm (LoRa mode) Supports LoRa and FSK modulation Programmable air data rate up to 62.5 kbps (LoRa) and 300 kbps (FSK) Long communication range of up to 7 km under ideal line-of-sight conditions Wide operating voltage: 1.8 V to 3.7 V (3.3 V recommended) Ultra-low receive current (~6.8 mA) and low sleep current Industrial operating temperature: −40°C to +85°C Compact 20 × 14 × 2.8 mm SMD package with castellated pads/IPEX antenna options Suitable for IoT, AMI, smart home, industrial sensors, wireless alarms, and remote control systems. #Ebyte #E22Series #E22900M22S #SX1262 #LoRa #WirelessModule #SubGHz #SPI #IoT #IndustrialAutomation #SmartMetering #RemoteMonitoring #EmbeddedSystems #RFModule

ST Microelectronics STM32L432KCU6 UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 LCSC Part Number: C1337280 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体) STMicroelectronics STM32L432KC ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU running up to 80MHz, featuring 256KB Flash memory, 64KB SRAM, USB 2.0 Full-Speed device support, Quad-SPI interface, RTC with calendar and alarms, true random number generator (TRNG), DMA controller, CAN 2.0B, UART, LPUART, SPI, I2C, SAI audio interface, 12-bit 5MSPS ADC, dual 12-bit DACs, operational amplifier with PGA, comparators, capacitive sensing channels, advanced timers and ultra-low-power modes. Operates from 1.71V to 3.6V and is optimized for battery-powered, industrial, medical, IoT and portable embedded applications. Search Keywords: STM32L432KC, STM32L432KCU6, STM32L432KCU6TR, STM32L432, STM32L4 series, STM32 Cortex-M4 MCU, STM32 low power microcontroller, STM32 256KB Flash 64KB SRAM, STM32 USB FS MCU, STM32 CAN MCU, STM32 Quad SPI MCU, STM32L432 datasheet, STM32L432 development board, Nucleo-L432KC, ARM Cortex-M4 FPU Hashtags: #STM32L432KC #STM32L432KCU6 #STM32L432 #STM32L4 #STMicroelectronics #CortexM4 #ARMMicrocontroller #LowPowerMCU #EmbeddedSystems #USBFS #CANBus #QuadSPI #ADC12bit #DAC12bit #RTC #TRNG #IoTMCU #IndustrialMCU #MedicalElectronics #NucleoL432KC

MAX3188EEUT+T SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL LCSC Part Number: C2671283 JLCPCB Part Class: Extended Part Manufactured by ADI(亚德诺)/MAXIM(美信) MAX31889 MAX31889 is a high-accuracy digital temperature sensor from Analog Devices featuring an I²C interface and industry-leading measurement precision of ±0.25°C from -20°C to +105°C and ±0.65°C from -40°C to +125°C. Operating from a 1.7V to 3.6V supply, the device offers low power consumption with only 68µA during measurements and 0.55µA in standby mode, making it ideal for battery-powered systems. The sensor includes programmable high and low temperature alarms, a 32-word FIFO buffer for temperature data logging, configurable GPIO pins for conversion triggering and interrupt generation, and unique ROM identification for traceability. Packaged in a compact 2mm × 2mm 6-pin µDFN package, the MAX31889 is suitable for precision temperature monitoring, industrial systems, IoT devices, medical equipment, environmental sensing, and RTD replacement applications. Search Keywords: MAX31889, Analog Devices MAX31889, digital temperature sensor, I2C temperature sensor, precision temperature sensor, high accuracy temperature sensor, low power temperature sensor, industrial temperature sensor, IoT temperature sensor, environmental monitoring sensor, battery powered sensor, programmable temperature alarm, FIFO temperature sensor, RTD replacement, temperature monitoring IC, ±0.25°C temperature sensor, µDFN temperature sensor, embedded temperature sensor, thermal monitoring Hashtags: #MAX31889 #AnalogDevices #TemperatureSensor #DigitalTemperatureSensor #I2C #PrecisionSensor #ThermalMonitoring #EnvironmentalMonitoring #IndustrialElectronics #IoT #EmbeddedSystems #LowPowerDesign #BatteryPowered #Sensor #Measurement #DataLogging #Electronics #ElectronicComponents #PCBDesign #ADI

Flat Vibration Motor 3V Motors - AC, DC RoHS LCM1027A2445F is a compact electromechanical buzzer component designed for audible notification and alert functions in embedded electronic systems. The device is engineered to generate stable acoustic output with low power consumption, making it suitable for portable electronics, industrial control equipment, alarm systems, and user interface applications requiring reliable sound indication. This buzzer is commonly integrated into embedded hardware platforms for status indication, warning alerts, keypad feedback, and operational notifications. Its compact package and surface-mount compatibility enable efficient integration into space-constrained PCB layouts while supporting automated assembly processes. The LCM1027A2445F is optimized for dependable acoustic performance and long operational life across a wide range of environmental conditions. It is widely used in consumer electronics, smart devices, communication equipment, medical instruments, and battery-powered embedded applications requiring compact and efficient audible signaling functionality. #commonpartslibrary #buzzer #audioindicator #embeddedhardware #electronicscomponents #acousticdevice #surfacemountdevice #portableelectronics #industrialelectronics #alarmsystem