18QHTF21-8.832-PD

Overview

The 18QHTF21-8.832-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 8.832 MHz with an LVCMOS output interface. The device requires a 1.8V supply voltage and features a ±50ppm frequency stability specification. It supports a standby or power-down mode for energy management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Supports standby or power-down mode operation
• Compact 4-SMD no-lead surface mount package

Applications

• Digital clock signal generation
• Microcontroller system timing
• Communication interface synchronization

Procurement Notes

Verify the specific operating temperature range and supply current requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards. Validate the ±50ppm stability meets your application's jitter tolerance.

Selection Notes

Select this component when a low-voltage 1.8V LVCMOS oscillator is required for space-constrained designs. The 8.832 MHz frequency is suitable for specific baud rate calculations or clock division needs. Consider the ±50ppm stability for general-purpose timing rather than high-precision reference applications. The standby feature makes it appropriate for battery-powered devices requiring power management capabilities.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal and oscillator products. The series includes various frequencies and voltage options within the same physical footprint. Mercury Electronics has a long history in Taiwan's crystal industry, providing frequency control solutions since 1973. This specific model represents a standard XO variant optimized for low-power digital applications.

Replacement Considerations

Direct substitutes may include other 8.832 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers like Epson or Nihon Dempa Kogyo. Verify pinout compatibility and electrical parameters such as supply voltage and output swing. Cross-reference frequency stability and temperature ranges to ensure equivalent performance. Check for lead-free packaging compliance if transitioning between different suppliers.