18QHTF21-36.5568-PD

Oscillators Overview

The 18QHTF21-36.5568-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 36.5568 MHz with an LVCMOS output logic level. The device requires a supply voltage of 2.5V and features a power-down standby function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 2.5V
• Includes power-down standby capability
• Utilizes LVCMOS output interface

Oscillators Applications

• General-purpose digital timing circuits
• Embedded system clock generation
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure that the 2.5V supply rail is stable to maintain frequency accuracy. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a precise 36.5568 MHz reference is required in space-constrained designs. The choice is driven by the need for low voltage operation and integrated power management. Consider the LVCMOS compatibility with downstream logic families. Evaluate thermal performance if the device will operate near its maximum rated temperature limits.

Oscillators Part Context

This model belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by small form factors suitable for modern electronics. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 36.5568 MHz frequency, 2.5V supply, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Cross-reference with other manufacturers offering similar LVCMOS oscillators in the same footprint.