18QHTF21-49.2032-PD

Overview

The 18QHTF21-49.2032-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 49.2032 MHz and utilizes LVCMOS output logic. 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 2.0 x 1.6 mm.

Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Supports power-down standby mode to reduce consumption
• Utilizes surface-mount no-lead packaging for automated assembly

Applications

• Digital clock generation in embedded systems
• Timing reference for microcontroller units
• Data communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a precise 49.2032 MHz timing source is required for low-voltage digital circuits. The choice is driven by the need for LVCMOS compatibility and the integration of a power-down feature. Consider the small form factor suitable for space-constrained designs requiring reliable quartz-based frequency control.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, a supplier specializing in frequency control products including crystals and oscillators. The series is characterized by standard XO configurations with various frequency options. The manufacturer provides these components for applications requiring stable timing signals in consumer and industrial electronics.

Replacement Considerations

Compatible substitutes include other 49.2032 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers such as Epson or Nihon Dempa Kogyo. Verify pinout compatibility and electrical parameters before substitution.