18QHTF21-26.666-PD

Oscillators Overview

The 18QHTF21-26.666-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.666 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features a Standby (Power Down) function to manage power consumption effectively. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This surface-mount oscillator is suitable for timing clock applications in portable electronics.

Oscillators Feature Summary

• Supports Standby (Power Down) mode for reduced power consumption
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD No Lead package design

Oscillators Applications

• Timing clock circuits in portable devices
• Battery-powered electronic systems
• Digital signal processing interfaces

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application environment before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the 4-SMD No Lead footprint matches the PCB layout design. Check for RoHS compliance status if required by regulatory standards. Validate the LVCMOS output levels with the receiving logic inputs.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for space-constrained designs. The 1.8V operation makes it suitable for modern battery-operated devices where power efficiency is critical. The Standby feature allows for dynamic power management during idle periods. Consider the 26.666 MHz frequency requirement specifically for the intended clocking needs. The small form factor aids in high-density board layouts.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which focuses on quartz crystal oscillators. The series includes various frequencies such as 51.2 MHz and 96.768 MHz, all sharing similar package and voltage characteristics. Mercury Electronic Ind., Co., Ltd. is a Taiwan-based supplier specializing in frequency-control components including TCXOs and VCTCXOs. The 'PD' suffix typically indicates the Power Down capability.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series variants like 18QHTF21-26.666-PD from different distributors if availability differs. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators at 1.8V. Verify pinout and electrical specifications match exactly before substitution.