18QHTF21-32.125-PD

Oscillators Overview

The 18QHTF21-32.125-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 32.125 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of a standby or power-down mode, allowing for energy management when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm, suitable for space-constrained surface-mount designs.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features standby capability to reduce power consumption during inactive periods
• Utilizes a compact 4-SMD no-lead surface mount package

Oscillators Applications

• General clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Portable electronic devices requiring power-efficient oscillators

Oscillators Procurement Notes

Verify that the specific part number suffix '-PD' corresponds to the required power-down functionality and packaging type. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 32.125 MHz frequency matches the design requirements precisely, as oscillator frequencies are fixed parameters. Check mechanical footprint compatibility with the PCB layout.

Oscillators Selection Notes

Select this component when a precise 32.125 MHz timing source is required for 1.8V logic families. The choice is driven by the need for a small form factor (2.0x1.6mm) and the specific requirement for a power-down feature to manage battery life or thermal constraints. Consider the LVCMOS output swing against the input thresholds of the receiving circuitry.

Oscillators Part Context

This model belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequencies within the same physical footprint and electrical profile. The '18' prefix likely indicates the 1.8V operating voltage, while 'QHTF21' denotes the specific package and performance class. This series is part of Mercury's broader portfolio of quartz-based frequency control products.

Oscillators Replacement Considerations

Direct replacements must match the 32.125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify if the substitute supports the same power-down functionality. Cross-reference pinouts to ensure compatibility, although SMD packages often follow standard conventions.