18QHTF21-112.000-PD

Overview

The 18QHTF21-112.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 112.0 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes Standby or Power Down functionality to manage power consumption
• Utilizes a surface-mount 4-pin no-lead package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 112 MHz stability
• Embedded applications utilizing low-voltage power supplies

Procurement Notes

Verify the specific suffix 'PD' confirms the presence of the Power Down feature as documented. Ensure the 1.8V supply requirement aligns with system design constraints. Confirm the 4-SMD no-lead footprint matches PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a precise 112 MHz timing source is required within a low-power environment. The choice depends on the necessity for LVCMOS compatibility and the availability of a 1.8V rail. Consider the physical size constraints imposed by the 2.0x1.6mm package relative to available board space.

Part Context

This model belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates specific operational characteristics regarding standby modes compared to other variants in the same family.

Replacement Considerations

Direct substitutes include other 112 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as jitter and load capacitance before swapping components.