CITIZEN FINEDEVICE HCM49 Surface-Mount Crystal Unit - 8MHz

The CITIZEN FINEDEVICE HCM49 series is a premium range of surface-mount crystal units, engineered for reliable and stable frequency control in demanding electronic circuits. This fundamental mode crystal offers exceptional performance, making it an essential component for maintaining precise timing and signal integrity.

Housed in a robust 11.4mm x 4.65mm metal can package, this crystal unit benefits from a resistance weld sealing process that ensures superior hermeticity and long-term reliability. Its compact surface-mount design (SMD) is engineered for compatibility with automated pick-and-place assembly lines and standard reflow soldering processes, streamlining high-volume production and ensuring consistent placement. This feature makes it an ideal choice for modern, densely populated printed circuit boards (PCBs).

The crystal is characterised by its excellent frequency stability and tight tolerance, guaranteeing accurate oscillation across its specified operating temperature range. Its design minimises motional series resistance and shunt capacitance, contributing to low power consumption and stable operation under varying load conditions. With a maximum drive level rating, it is built to handle the rigorous demands of continuous operation without degradation in performance.

Specifications Overview

• Case/Package: Compact SMD metal can, 11.4mm x 4.65mm footprint.
• Mounting: Surface-mount device (SMD), 2-pin configuration.
• Sealing: High-reliability resistance weld sealing.
• Operation Mode: Fundamental.
• Compatibility: Fully reflow-solderable for automated assembly.

This versatile crystal unit is a critical component for designers and engineers seeking a dependable frequency source that combines advanced packaging with consistent electrical performance.

Variant Details

• Size: 8MHz