18QHTF21-34.4347-OE

Oscillators Overview

The 18QHTF21-34.4347-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 34.4347 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an Enable/Disable control function, allowing for power management flexibility in system designs. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount applications.

Oscillators Feature Summary

• LVCMOS output logic compatibility for standard digital interfaces
• Integrated enable/disable functionality for power optimization
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• High-performance digital signal processing systems
• Communication equipment requiring precise timing references
• Portable electronic devices with limited power budgets

Oscillators Procurement Notes

Verify the specific suffix (OE vs PD) against the manufacturer's official documentation to ensure correct output type and availability. Confirm that the 1.8V supply voltage matches the target circuit requirements. Check the operating temperature range specifications to ensure compliance with the intended environmental conditions. Request the latest datasheet directly from Mercury Electronics or authorized distributors to validate pinout and electrical characteristics before integration.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage oscillator with enable control is required. Ensure the 34.4347 MHz frequency aligns with system clock needs. Compare load capacitance requirements with the host circuit. Verify that the 2.0x1.6mm footprint fits within the PCB layout constraints. Consider thermal performance if operating near maximum temperature limits.

Oscillators Part Context

Mercury Electronics Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals, oscillators, and filters. The company has a long history in the industry, focusing on precision timing solutions. The 18QHTF series represents their line of surface-mount crystal oscillators designed for modern electronic applications requiring small form factors and reliable performance.

Oscillators Replacement Considerations

Direct substitutes may include other 34.4347 MHz LVCMOS oscillators in 4-SMD packages from manufacturers like Epson or NDK. Verify voltage levels, pin configurations, and enable logic polarity. Cross-reference mechanical dimensions to ensure board compatibility. Consult Mercury Electronics for recommended alternative part numbers if this specific variant is discontinued.