18QHTF21-10.244-PD

Overview

The 18QHTF21-10.244-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.244 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. 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 with low power consumption capabilities.

Feature Summary

• Supports enable/disable functionality via standby control
• Utilizes LVCMOS output logic for digital interface compatibility
• Operates on a single 1.8V power supply rail
• Features a small form factor 4-SMD no-lead package

Applications

• Battery-powered portable electronic devices
• Digital signal processing circuits
• Communication equipment requiring stable clock sources
• Embedded systems with space constraints

Procurement Notes

Verify the specific frequency tolerance and stability requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications. Check for any specific load capacitance requirements if driving high-capacitance loads. Validate that the standby function meets your power management strategy.

Selection Notes

Select this model when a 10.244 MHz clock signal is required with LVCMOS outputs. Consider the 1.8V operating voltage for compatibility with low-voltage logic families. The compact 2.0x1.6mm size makes it suitable for dense PCB layouts. Evaluate the standby feature if power conservation during idle periods is critical. Compare against other frequencies in the QHTF21 series if different clock speeds are needed.

Part Context

This part belongs to the QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies with standardized LVCMOS outputs. The 'PD' suffix indicates the inclusion of a power-down or standby pin. These components are designed for general-purpose timing applications where size and power efficiency are prioritized over ultra-high precision stability.

Replacement Considerations

Direct replacements must match the 10.244 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that substitute parts support the same 4-SMD no-lead package dimensions. Ensure equivalent electrical characteristics such as current consumption and startup time. Cross-reference with other Mercury Electronics models like the 18QHTF21-24.000-PD only if frequency differences are acceptable.