18QHTF21-83.336-PD

Overview

The 18QHTF21-83.336-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 83.336 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (standby) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Supports low-voltage operation at 1.8V for efficient power consumption
• Includes standby mode capability to reduce power usage during idle periods
• Utilizes a small-footprint surface-mount package suitable for dense PCB layouts

Applications

• General-purpose digital clock signal generation
• Embedded system timing references
• Communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range to maintain frequency accuracy. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues. Cross-reference the part number suffix PD to ensure it aligns with your packaging and handling specifications.

Selection Notes

Select this oscillator when a fixed 83.336 MHz frequency is required with low power constraints. Consider the LVCMOS output compatibility with downstream logic levels. Evaluate the thermal performance and operating temperature range if the application involves extreme environmental conditions. Compare package size against available board space to ensure mechanical fit.

Part Context

This component belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down feature. These oscillators are part of Mercury's broader portfolio of quartz-based frequency control products, which includes crystals, TCXOs, and other oscillator types.

Replacement Considerations

Direct substitutes may include other 83.336 MHz LVCMOS oscillators in a 2.0x1.6mm package with 1.8V operation. Verify pinout compatibility and electrical parameters such as jitter and phase noise. Check if alternative manufacturers offer equivalent performance metrics. Ensure that any replacement supports the same standby functionality if power management is critical.