STM32 Projects
FL2500283Z
25 MHz ±30ppm Crystal 20pF 50 Ohms 4-SMD, No Lead The FL2500283Z is a 25 MHz surface-mount quartz crystal manufactured by Diodes Incorporated, part of the FL series (SaRonix-eCera™). It is designed for use as a stable clock reference in digital circuits such as microcontrollers, communication modules, and embedded systems. This crystal uses an AT-cut resonator inside a compact 3.2 mm × 2.5 mm (3225) ceramic package, making it suitable for high-density PCB designs and modern electronics. Key Features Standard Frequency 25 MHz fundamental mode crystal Compact SMD Package 3.2 × 2.5 mm (3225), 4-pad configuration Height ~0.68–0.75 mm AT-Cut Quartz Technology Provides good frequency stability and low drift Frequency Stability & Tolerance Typical: ±10 to ±30 ppm Load Capacitance Typically 20 pF Low ESR Around 50–60 Ω, suitable for MCU oscillator circuits Wide Operating Temperature Common range: -20°C to +70°C (some variants up to -40°C to +125°C) Surface-Mount Compatibility Ideal for automated assembly and reflow soldering RoHS / Lead-Free Environmentally compliant design Typical Applications Microcontroller clock (STM32, ESP32, AVR, etc.) Communication modules (Wi-Fi, Ethernet, RF) Embedded systems Consumer electronics Industrial control boards #Crystal #Oscillator #Resonator #SaRonix-eCera™ FL
CX3225SB16000D0GZJC1
16 MHz ±15ppm Crystal 8pF 60 Ohms 4-SMD, No Lead The CX3225SB16000D0GZJC1, manufactured by Kyocera AVX, is a 16.000 MHz crystal oscillator element designed to provide precise frequency reference for microcontrollers, communication ICs, and digital systems. It belongs to the CX3225SB series, known for compact size and stable frequency performance. Key Characteristics Type: Quartz crystal (passive frequency component) Frequency: 16 MHz Load Capacitance: 8 pF Frequency Stability: ±15 ppm Frequency Tolerance: ±15 ppm Operating Mode: Fundamental ESR (Equivalent Series Resistance): ~60–80 Ω Mechanical Details Package: 4-SMD, no-lead (surface mount) Size: 3.2 mm × 2.5 mm (3225 package) Height: ~0.6 mm (low profile) Operating Conditions Temperature Range: −25°C to +85°C Mounting Type: Surface mount (SMT) Function (Simple Explanation) This component: Generates a stable clock signal (16 MHz) Acts as the timing reference for MCUs, processors, or RF modules Works together with internal oscillator circuits inside ICs Microcontroller clock sources (e.g., ESP32, STM32, AVR) Communication modules Embedded systems Consumer electronics IoT devices #CommonPartsLibrary #Crystal #Oscillator #resonator
