The SFPCA450KF4A002-R1 is a ceramic resonator manufactured by Murata Electronics North America. These resonators are commonly used in electronic circuits to provide stable clock signals or timing references, particularly in applications where high precision and stability are required but a crystal oscillator is not necessary.

Applications:

• Microcontrollers: Providing clock signals for microcontrollers in embedded systems.
• Remote Controls: Generating carrier frequencies for infrared or radio frequency remote controls.
• Consumer Electronics: Timing circuits in various consumer devices such as toys, appliances, and audio equipment.
• Automotive Electronics: Clock signals for automotive control systems, although often paired with stricter tolerances.
• Industrial Controls: Timing and synchronization in industrial automation equipment.

Features:

• Compact Size: Small footprint allows for easy integration into dense circuit boards.
• Stable Frequency: Provides a relatively stable oscillating frequency over a wide temperature range.
• No External Components Required: Self-contained resonator, eliminating the need for external capacitors or inductors.
• Low Power Consumption: Operates with low power, suitable for battery-powered devices.
• RoHS Compliant: Meets RoHS standards for environmental compliance.
• Surface Mount Technology (SMT): Designed for automated assembly using surface mount technology.

Benefits:

• Reduced Bill of Materials (BOM): Simplifies circuit design by eliminating the need for external components.
• Cost-Effective Solution: Offers a cost-effective alternative to crystal oscillators in less demanding applications.
• Improved Reliability: Solid-state construction provides high reliability and long-term stability.
• Simplified Circuit Design: Easy to integrate into existing circuits due to its self-contained nature.
• Space Saving: Compact size allows for efficient use of board space.

Additional Details:

The nominal frequency of the SFPCA450KF4A002-R1 is approximately 4.5 MHz, but it's important to check the datasheet for the precise frequency and tolerance. The operating temperature range is generally between -20°C to +80°C. It is crucial to match the resonator's frequency and load capacitance with the requirements of the microcontroller or integrated circuit it is driving. Murata provides detailed specifications in their datasheets, including frequency stability over temperature, aging characteristics, and recommended circuit configurations. It is important to consult the manufacturer's datasheet before using this component.