18QHTF21-13.02519-PD

Overview

The 18QHTF21-13.02519-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.02519 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power reduction
• Compact surface-mount package design

Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure the 1.8V supply rail stability meets the datasheet specifications to maintain oscillation integrity. Confirm that the PCB footprint matches the 2.0x1.6 mm SMD no-lead package dimensions to avoid assembly issues.

Selection Notes

Select this component when a precise 13.02519 MHz reference is required in space-constrained designs. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the power-down feature if battery life or thermal management is a critical constraint in the application environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a small form factor. The series is designed for applications requiring reliable timing signals in consumer electronics and industrial control systems. Mercury Electronics specializes in quartz-based frequency control products.

Replacement Considerations

Direct substitutes must match the 13.02519 MHz frequency, LVCMOS output type, 1.8V operating voltage, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle before swapping.