18QHTF21-10.20905-PD

Overview

The 18QHTF21-10.20905-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.20905 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a standby or power-down function to manage energy consumption. The component is housed in a compact 4-SMD, No Lead surface-mount package, suitable for space-constrained electronic designs requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for power management
• Operates on a 1.8V supply voltage
• Utilizes a 4-SMD, No Lead surface-mount package

Applications

• General-purpose clock signal generation
• Digital circuit timing references
• Embedded systems requiring low-voltage oscillators
• Portable electronics with power constraints

Procurement Notes

Verify the exact frequency specification of 10.20905 MHz against system requirements. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD, No Lead package dimensions fit the PCB footprint. Check for RoHS compliance if required by project standards. Validate the manufacturer source as Mercury Electronics Ind. Co. Ltd.

Selection Notes

Select this component when a specific frequency of 10.20905 MHz is required rather than a standard integer value. Choose based on the need for LVCMOS outputs and 1.8V operation. Consider the small 4-SMD form factor for dense layouts. Evaluate the power-down feature if energy efficiency is critical. Compare against other Mercury Electronics XO models for pinout and size compatibility.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequencies within a compact surface-mount package. Mercury Electronics specializes in quartz crystals and frequency control products. The 'PD' suffix typically indicates a specific packaging or tape-and-reel configuration provided by distributors.

Replacement Considerations

Direct substitutes must match the 10.20905 MHz frequency, 1.8V supply, and LVCMOS output. Compatible alternatives include other 18QHTF21 variants from Mercury Electronics with identical electrical parameters. Cross-reference with industry-standard 4-SMD oscillators ensuring frequency and voltage alignment.