18QHTF21-50.210-PD

Overview

The 18QHTF21-50.210-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 50.21 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and supports standby or power-down functionality for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-power electronic systems.

Feature Summary

• LVCMOS output interface providing standard digital signaling compatibility
• Integrated standby mode enabling power-down capability for efficiency
• Compact surface-mount package suitable for space-constrained designs

Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Consumer electronics requiring low-power oscillators

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Selection Notes

Select this component when a 50.21 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage to ensure compatibility with low-voltage logic families. The standby feature makes it suitable for battery-operated devices where power conservation is critical. Evaluate the small form factor against available board space limitations.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and package dimensions. The 'PD' suffix typically indicates specific packaging or tape-and-reel configuration details provided by the manufacturer.

Replacement Considerations

Direct substitutes must match the 50.21 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile oscillators if availability is an issue.