18QHTF21-26.042968-PD

Oscillators Overview

The 18QHTF21-26.042968-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.042968 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function to reduce power consumption. 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 in space-constrained electronic systems.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interface compatibility
• Includes Standby (Power Down) functionality to manage power states
• Utilizes a small form factor 4-SMD No Lead package design

Oscillators Applications

• Battery-powered portable devices
• Digital communication systems
• Embedded microcontroller timing circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD No Lead package footprint matches the PCB layout constraints. Check for any specific handling instructions related to the surface mount technology used in this component.

Oscillators Selection Notes

Select this oscillator when a low-voltage 1.8V operation is required alongside a precise 26.042968 MHz clock signal. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power management during idle periods is critical. The compact 2.0x1.6mm size makes it suitable for dense PCB layouts where space is limited compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized small outline package format. Mercury Electronic Ind Co., Ltd has a history of manufacturing quartz crystals and oscillators, positioning this component as part of their standard catalog offerings for industrial and consumer electronics applications.

Oscillators Replacement Considerations

Direct substitutes must match the 26.042968 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal characteristics. Other manufacturers producing similar low-profile oscillators may offer alternatives, but electrical parameters and physical dimensions must be identical to ensure board-level interchangeability without redesign.