18QHTF21-93.440-PD

Overview

The 18QHTF21-93.440-PD is a 93.44 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The component features a Standby function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The device supports an operating temperature range of -40°C to 85°C and offers frequency stability of ±50ppm.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Integrates a standby mode for effective power down capabilities
• Provides high-frequency stability within a miniature surface-mount footprint

Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded control circuits needing precise timing references

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to ensure correct configuration. Confirm that the required frequency tolerance and load conditions match system specifications. Check for RoHS compliance status as indicated in official product listings. Ensure the selected variant matches the required package type and operational temperature range for the intended environment.

Selection Notes

Select this component when a small form factor oscillator is required for 1.8V logic interfaces. Consider the ±50ppm stability requirement against system clock accuracy needs. Evaluate the thermal performance within the specified -40°C to 85°C range. Compare physical dimensions against board space constraints before finalizing the design integration.

Part Context

This part belongs to the Mercury Electronics SMD oscillator series designed for general-purpose clocking applications. The 18QHTF21 series typically offers standard performance levels suitable for consumer and industrial electronics. It represents a solution for miniaturized designs requiring reliable quartz-based frequency generation without complex external components.

Replacement Considerations

Direct substitutes may include other 1.8V LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as current consumption and startup time. Ensure the replacement maintains the same frequency stability and operating temperature range.