18QHTF21-75.957292-PD

Overview

The 18QHTF21-75.957292-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.957292 MHz with LVCMOS output logic. The device supports 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 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals in low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby mode to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for space-constrained designs

Applications

• Digital signal processing circuits
• Communication equipment clock sources
• Embedded system timing references

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application needs before procurement. Ensure that the 1.8V supply voltage aligns with the target system's power rails. Confirm that the 4-SMD no-lead package footprint matches the PCB design guidelines to avoid soldering issues. Cross-reference the part number suffix with official documentation to confirm availability and manufacturing status.

Selection Notes

Select this oscillator when a fixed frequency of 75.957292 MHz is required with LVCMOS compatibility. Consider the 1.8V operating voltage constraint and the need for a standby feature. Evaluate the 2.0x1.6mm package size against available board space. Compare performance metrics such as phase noise and stability if specified in the datasheet against alternative components in the same series.

Part Context

This component belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies with standardized LVCMOS outputs and low-voltage operation. The 'PD' suffix likely indicates a specific packaging or testing configuration, while the numeric value denotes the precise frequency. These devices are part of Mercury's portfolio of frequency control products established since 1973.

Replacement Considerations

Direct substitutes within the same series include models like 18QHTF21-75.9505-OE, which shares similar package and voltage characteristics but differs in frequency. Verify electrical compatibility and pinout alignment before substitution. Generic replacements must match the 4-SMD no-lead form factor and 1.8V LVCMOS specifications.