18QHTF21-13.5212-PD

Overview

The 18QHTF21-13.5212-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.5212 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down function to minimize energy consumption when not in use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Integrates LVCMOS output logic for direct digital interface compatibility
• Includes standby mode functionality to reduce power consumption during idle periods
• Utilizes a leadless SMD package design for efficient board space utilization

Applications

• Clock signal generation for embedded systems
• Timing reference for portable consumer electronics
• Synchronization source for communication modules

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions precisely to avoid soldering defects. Check for any specific handling instructions regarding electrostatic discharge sensitivity during storage and installation.

Selection Notes

Select this component when a precise 13.5212 MHz clock source is required with minimal power draw. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the physical size constraints of the application, as the small form factor suits dense layouts. Evaluate the need for power-down capabilities if the system requires extended battery life or thermal management.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and package styles. The 'PD' suffix typically indicates the inclusion of a power-down feature, distinguishing it from standard continuous-operation variants within the same family line.

Replacement Considerations

Direct substitutes must match the 13.5212 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal performance. Cross-reference with other manufacturers offering identical specifications to ensure availability without redesigning the host circuit.