18QHTF21-1.02597-PD

Overview

The 18QHTF21-1.02597-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.02597 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down capabilities
• Features LVCMOS output interface

Applications

• Data communication systems
• Control systems requiring precise timing
• Portable electronic devices with space constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout. Check availability status as stock levels may vary among distributors.

Selection Notes

Select this component when a low-frequency, low-power oscillator is required for embedded applications. The small form factor makes it suitable for dense PCB designs. Consider the LVCMOS compatibility with your microcontroller or FPGA inputs. Evaluate the power-down feature if battery life is a critical constraint.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized surface-mount package. The series is designed for general-purpose timing applications where size and power efficiency are prioritized over high-frequency performance.

Replacement Considerations

Direct substitutes must match the 1.02597 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before swapping manufacturers.