JDY-23 is an ultra-low-power Bluetooth 5.0 BLE transparent transmission module operating in the 2.4GHz ISM band using GFSK modulation. The module supports wireless UART-to-BLE communication, enabling seamless data exchange between a microcontroller and smartphones, tablets, or other BLE-enabled devices. It provides up to +4dBm transmit power and a communication range of up to 60 meters under optimal conditions. The module supports configurable AT commands for changing device name, baud rate, advertising parameters, and communication settings. JDY-23 is designed for low-power IoT devices, wireless sensors, smart home equipment, industrial monitoring, wearable electronics, and battery-powered embedded applications requiring simple BLE connectivity. Search Keywords: JDY-23, JDY23, Bluetooth 5.0 module, BLE module, Bluetooth Low Energy module, UART BLE module, transparent transmission module, serial Bluetooth module, wireless UART bridge, 2.4GHz BLE transceiver, AT command BLE module, IoT Bluetooth module, low power Bluetooth module, embedded BLE module, MCU Bluetooth interface, Bluetooth serial communication, smart home BLE module, sensor BLE module, battery powered BLE module Hashtags: #JDY23 #Bluetooth5 #BLE #BluetoothLowEnergy #UARTBLE #BluetoothModule #WirelessCommunication #IoT #EmbeddedSystems #Microcontroller #SmartHome #WearableElectronics #SensorNode #LowPowerDesign #WirelessUART #ATCommands #2_4GHz #Electronics #PCBDesign #ElectronicComponents

IC RF TxRx Only General ISM > 1GHz LoRaWAN 32-VFQFN Exposed Pad LR2021IMLTRT is a fourth-generation, long-range, low-power, multi-band LoRa® RF transceiver from Semtech, designed for IoT, LPWAN, satellite communication, smart metering, industrial automation, asset tracking, and wireless sensor networks. It supports operation across sub-GHz and 2.4 GHz frequency bands, offering excellent receiver sensitivity, high transmit power, and compatibility with multiple wireless protocols including LoRaWAN®, Bluetooth® LE PHY, Zigbee™, Thread®, Amazon Sidewalk, and Wi-SUN. Key Features Multi-band operation: 150 MHz to 960 MHz and 1.5 GHz to 2.5 GHz Supports LoRa®, LoRaWAN®, LR-FHSS, FLRC, FSK, GFSK, GMSK, MSK, OOK, and O-QPSK Maximum data rate up to 2.6 Mbps High receiver sensitivity up to -141.5 dBm (LoRa mode) Transmit power up to +22 dBm (sub-GHz) Compatible with Bluetooth® LE 5.0 PHY, Thread®, Zigbee™, Amazon Sidewalk, Sigfox, Wi-SUN, and Z-Wave® Ultra-low power consumption with 470 nA sleep current Operating voltage range: 1.8 V to 3.7 V SPI interface with programmable GPIOs Operating temperature range: -40°C to +85°C Compact 32-pin QFN (5 mm × 5 mm) package for space-constrained designs. Hashtags #Semtech #LR2021IMLTRT #LoRa #LoRaWAN #RFTransceiver #WirelessCommunication #IoT #LPWAN #BluetoothLE #Zigbee #Thread #WiSUN #AmazonSidewalk #AssetTracking #SmartMetering #IndustrialIoT #SatelliteCommunication #LowPowerDesign #EmbeddedSystems #RFIC

RF ANTENNA Bluetooth, Wi-Fi, WLAN, Zigbee™ Ceramic Patch Solder Surface Mount The SWLP.2450.10.4.A.02 specification defines the engineering requirements for a surface-mount radio frequency antenna designed for wireless communication applications operating within the 2.4 GHz frequency band. This specification establishes the functional, electrical, mechanical, environmental, and quality requirements necessary to ensure efficient RF transmission and reception, stable antenna performance, and long-term operational reliability in embedded electronic systems. The antenna is intended for use in wireless communication devices supporting technologies such as Bluetooth, Wi-Fi, Zigbee, Thread, and other 2.4 GHz ISM band protocols. It is optimized for compact PCB integration while providing efficient radiation characteristics, stable impedance matching, and dependable performance in space-constrained electronic products including IoT devices, industrial controllers, consumer electronics, and smart sensing platforms. Engineering Requirements The antenna shall be manufactured using qualified conductive and dielectric materials with controlled production processes to ensure consistent RF performance, mechanical durability, and long-term reliability. The construction shall maintain stable electrical characteristics throughout the specified operating temperature and environmental conditions. Electrical characteristics shall provide efficient radiation efficiency, stable impedance matching, low return loss, and reliable signal transmission and reception across the intended operating frequency range. The antenna shall maintain consistent performance when integrated according to the recommended PCB layout and grounding practices. The RF structure shall minimize insertion losses and support reliable wireless communication while maintaining acceptable gain, bandwidth, and radiation pattern characteristics. The antenna shall exhibit stable performance under normal operating conditions without significant degradation caused by thermal variation or environmental exposure. Mechanical construction shall be suitable for automated surface-mount assembly and compatible with standard solder reflow manufacturing processes. The package shall withstand vibration, thermal cycling, mechanical handling, and environmental stress without degradation of electrical or structural performance. Workmanship shall be free from defects including cracks, contamination, plating irregularities, or structural inconsistencies that could adversely affect RF performance or reliability. Inspection, validation, and testing shall be performed using calibrated RF measurement equipment and controlled quality procedures to verify compliance with engineering and manufacturing requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process before implementation. Documentation Supporting documentation shall include engineering drawings, RF performance specifications, impedance matching recommendations, qualification reports, inspection records, reliability data, material declarations, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability. Revision Control Any modification to this specification shall be managed through the formal engineering change management process. All revisions shall undergo technical review, validation, and approval before release to ensure continued compliance with design intent and applicable engineering standards. #EngineeringSpecification #RFAntenna #WirelessCommunication #Antenna #Bluetooth #WiFi #IoT #EmbeddedSystems #QualityAssurance #EngineeringDocumentation

Varactors Single 12 V Surface Mount SC-79 The SMV1705-079LF specification defines the engineering requirements for a hyperabrupt junction varactor diode designed for voltage-controlled capacitance applications in radio frequency and high-frequency electronic systems. This specification establishes the functional, electrical, mechanical, thermal, environmental, and quality requirements necessary to ensure stable capacitance tuning, reliable RF performance, and long-term operational stability. The device is intended for use in voltage-controlled oscillators, frequency synthesizers, RF tuning circuits, phase-locked loops, wireless communication equipment, and other applications requiring electronically adjustable capacitance. The varactor diode provides predictable capacitance variation as a function of reverse bias voltage, enabling accurate frequency control and signal tuning while maintaining low loss and high reliability. Engineering Requirements The varactor diode shall be manufactured using qualified semiconductor fabrication processes and high-quality materials to ensure consistent capacitance characteristics, low leakage current, and dependable long-term reliability. The device shall maintain stable operation under specified electrical, thermal, and environmental operating conditions. Electrical characteristics shall provide predictable capacitance variation with reverse bias voltage, low series resistance, and high quality factor suitable for radio frequency operation. The device shall maintain stable tuning characteristics, low distortion, and consistent performance across the specified operating frequency and temperature ranges. The semiconductor structure shall support reliable RF operation while minimizing parasitic effects that could degrade tuning accuracy or signal integrity. The device shall exhibit repeatable capacitance characteristics throughout continuous operation and under varying environmental conditions. Thermal performance shall support continuous operation within the specified junction temperature range while maintaining electrical integrity and long-term reliability. The package shall be suitable for automated surface-mount assembly and compatible with standard solder reflow manufacturing processes. Mechanical construction shall withstand thermal cycling, vibration, mechanical handling, and environmental exposure without degradation of electrical or mechanical performance. Workmanship shall be free from defects including contamination, package cracking, bond failures, lead deformation, plating irregularities, or structural inconsistencies that could adversely affect functionality or reliability. Inspection, validation, and testing shall be performed using calibrated equipment and controlled quality procedures to verify compliance with engineering and manufacturing requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process before implementation. Documentation Supporting documentation shall include engineering drawings, electrical performance specifications, RF characterization reports, qualification records, inspection reports, reliability data, material declarations, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability. Revision Control Any modification to this specification shall be managed through the formal engineering change management process. All revisions shall undergo technical review, validation, and approval before release to ensure continued compliance with design intent and applicable engineering standards. #EngineeringSpecification #VaractorDiode #RFComponents #FrequencyTuning #VoltageControlledCapacitance #WirelessCommunication #Semiconductor #SignalIntegrity #QualityAssurance #EngineeringDocumentation

Transceiver Module EG800KEULC-I03-SNNSA is an LTE Cat 1 bis wireless communication module from Quectel designed for compact Machine-to-Machine (M2M) and Internet of Things (IoT) applications. The module delivers reliable 4G LTE connectivity with download speeds of up to 10 Mbps and upload speeds of up to 5 Mbps, making it suitable for asset tracking, smart metering, industrial automation, POS terminals, security systems, and remote monitoring. The I03-SNNSA variant is configured without GNSS, Bluetooth, and VoLTE, while supporting optional Wi-Fi Scan, remote firmware updates (DFOTA), and multiple communication interfaces including UART, USB 2.0, and I²C. Its compact 17.7 × 15.8 × 2.4 mm LGA package enables easy integration into space-constrained embedded designs. Key Features LTE Cat 1 bis cellular communication Maximum data rates: 10 Mbps (Downlink) / 5 Mbps (Uplink) Compact 17.7 × 15.8 × 2.4 mm LGA package No GNSS, Bluetooth, or VoLTE (I03-SNNSA variant) Optional Wi-Fi Scan support Supports DFOTA (Delta Firmware Over-the-Air) updates USB 2.0 High-Speed, UART, and I²C interfaces Wide operating temperature range: -40°C to +85°C Optimized for M2M and IoT applications with low power consumption Compatible with various embedded operating systems and industry-standard AT commands #Quectel #EG800K #LTECat1bis #4GModule #IoT #M2M #WirelessCommunication #EmbeddedSystems #IndustrialIoT #RemoteMonitoring #AssetTracking #SmartDevices #DFOTA #LGA #CellularModule

RF Demodulator IC 20MHz ~ 300MHz 32-VFQFN Exposed Pad The CMX973Q5 specification defines the engineering requirements for a radio frequency quadrature modulator integrated circuit designed for digital and analog wireless communication systems. This specification establishes the functional, electrical, mechanical, thermal, environmental, and quality requirements necessary to ensure accurate signal modulation, high RF performance, and long-term operational reliability. The device is intended for use in wireless communication equipment, telemetry systems, software-defined radio platforms, digital data transmission equipment, industrial RF systems, and embedded communication applications requiring high-performance I/Q modulation. It provides precise conversion of baseband in-phase and quadrature signals into modulated RF output while maintaining excellent signal integrity, low distortion, and stable operation over a wide range of operating conditions. Engineering Requirements The RF modulator shall be manufactured using qualified semiconductor fabrication processes and high-quality materials to ensure consistent electrical characteristics, reliable modulation accuracy, and dependable long-term performance. The device shall maintain stable operation under specified supply voltage, temperature, and environmental operating conditions. Electrical characteristics shall provide accurate in-phase and quadrature signal processing, low phase imbalance, high linearity, low noise, and excellent carrier suppression. The device shall maintain stable RF output characteristics and predictable modulation performance throughout continuous operation while minimizing harmonic distortion and unwanted spurious emissions. The integrated RF architecture shall support efficient signal conversion and reliable interface with external oscillators, filters, and communication circuitry. The device shall preserve signal integrity across the specified operating frequency range while supporting high-quality modulation for digital and analog communication protocols. Thermal performance shall support continuous operation within the specified junction temperature range while maintaining electrical integrity and long-term reliability. The package shall be suitable for automated surface-mount assembly and compatible with standard solder reflow manufacturing processes. Mechanical construction shall withstand thermal cycling, vibration, mechanical handling, and environmental exposure without degradation of electrical or mechanical performance. Workmanship shall be free from defects including contamination, package cracking, bond failures, lead deformation, plating irregularities, or structural inconsistencies that could adversely affect RF performance or reliability. Inspection, validation, and testing shall be performed using calibrated RF measurement equipment and controlled quality procedures to verify compliance with engineering and manufacturing requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process before implementation. Documentation Supporting documentation shall include engineering drawings, RF performance specifications, modulation characteristics, application guidelines, qualification reports, inspection records, reliability data, material declarations, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability. Revision Control Any modification to this specification shall be managed through the formal engineering change management process. All revisions shall undergo technical review, validation, and approval before release to ensure continued compliance with design intent and applicable engineering standards. #EngineeringSpecification #RFModulator #QuadratureModulator #WirelessCommunication #RFIC #SignalModulation #EmbeddedSystems #Telecommunications #QualityAssurance #EngineeringDocumentation

Transceiver 433MHz IPEX interface -100dBm 1km SPI SMD,20x14mm RF Transceiver Modules and Modems RoHS The E04-400M16S is based on STMicroelectronics' S2-LPQTR chip as the core, it is an ultra-small size chip wireless transceiver RF module independently developed by Ebyte, working in the 433M/470M frequency band, with a maximum transmission power of 16dBm. Since this module is a SPI pure hardware radio frequency transceiver module, it needs to be driven by MCU. Features  Ultra-small size, only 14x20mm;  The communication distance can reach 1km under ideal conditions;  The maximum transmit power is 16dBm;  The receiving current (RX) is as low as 7mA, and the transmitting current (TX) is as low as 10mA@10dBm;  Low power consumption, suitable for battery-powered applications;  Support 433M/470M frequency band;  Support multiple debugging modes of 2(G)FSK, 4(G)FSK, OOK, ASK;  Support 2.5V～3.6V power supply, power supply greater than 3.3V can guarantee the best performance;  Industrial-grade standard design, supporting long-term use at -40～85℃;  IPEX interface and stamp hole are optional, which is convenient for users to develop and integrate. Application  Smart meeting  Wireless alarm system  Smart door lock  Building automation  Industrial acquisition and control  Intelligent lighting system #E04_400M16S #EBYTE #S2LP #RFModule #WirelessTransceiver #433MHz #470MHz #IoT #IndustrialAutomation #SmartHome #LongRangeWireless #SPI #LowPowerRF #EmbeddedSystems #WirelessCommunication

The NX3225GD 8.000MHz STD-CRA-3 is a surface-mount quartz crystal resonator designed to provide a stable and accurate clock reference for electronic circuits. It is housed in a compact ceramic package suitable for space-constrained applications and is optimized for low power consumption and reliable frequency generation. This crystal is commonly used in microcontrollers, wireless communication modules, industrial control systems, consumer electronics, IoT devices, and embedded systems requiring precise timing and frequency control. Features Fundamental mode quartz crystal resonator Nominal frequency of 8.000 MHz Compact surface-mount ceramic package High frequency stability and accuracy Low equivalent series resistance Suitable for low-power oscillator circuits Excellent aging characteristics RoHS-compliant construction Designed for automated SMT assembly processes Reliable operation across industrial temperature environments Electrical Characteristics Crystal type: Quartz Crystal Resonator Frequency: 8.000 MHz Oscillation mode: Fundamental Load capacitance: Standard load capacitance configuration Frequency tolerance: Standard precision grade Frequency stability: Industrial-grade stability performance Equivalent series resistance optimized for MCU and RF oscillator circuits Low drive level operation High insulation resistance Mechanical Characteristics Surface-mount package Ceramic hermetic enclosure Compact footprint suitable for high-density PCB layouts Compatible with standard reflow soldering processes Designed for automated pick-and-place assembly Applications Microcontroller clock generation Wireless communication devices Bluetooth and RF modules IoT and smart devices Industrial automation equipment Embedded control systems Consumer electronics Timing and synchronization circuits Sensor interface modules Portable battery-powered products Compliance RoHS compliant Lead-free package Environmentally friendly manufacturing standards Suitable for commercial and industrial electronic applications #commonpartslibrary #crystal #quartzcrystal #frequencycontrol #timingdevice #clocksource #oscillator #smtcomponent #embeddedsystems #wirelesscommunication #industrialelectronics #consumerelectronics #iotdevices #passivecomponents #electroniccomponents