18QHTF21-11.350-PD

Overview

The 18QHTF21-11.350-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.35 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and includes a standby (power down) function for energy management. 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 power down capability
• Provides stable LVCMOS clock signals

Applications

• Low voltage digital circuits requiring precise timing
• Portable electronic devices with power constraints
• Embedded systems utilizing standard crystal oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail is stable to maintain signal integrity. Confirm that the 4-SMD no-lead package footprint matches your PCB layout specifications. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Selection Notes

Select this component when a small form factor is required alongside low power consumption. The 1.8V operating voltage makes it suitable for modern low-voltage logic families. Consider the standby feature if power management during idle states is critical. Verify that the 11.35 MHz frequency aligns with your system's clock generation needs.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a consistent 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from continuous-output variants.

Replacement Considerations

Direct replacements must match the 11.35 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics such as phase noise and jitter. Consult manufacturer cross-reference lists for validated substitutes.