18QHTF21-25.1429-PD

Oscillators Overview

The 18QHTF21-25.1429-PD is a 25.1429 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output signaling
• Includes Standby mode capability for power reduction
• Utilizes a leadless surface-mount package design

Oscillators Applications

• General clock signal generation in electronic circuits
• Power-sensitive embedded system designs
• Compact consumer electronics requiring low-profile oscillators

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 25.1429 MHz application. Confirm the 1.8V supply requirement aligns with the target circuit design. Ensure the 4-SMD No Lead package footprint is compatible with the PCB layout. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Oscillators Selection Notes

Select this component when a precise 25.1429 MHz clock source is required within space-constrained environments. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. The integrated standby feature provides an advantage in battery-operated devices where power conservation is critical during idle periods.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series includes various XO, TCXO, and VCXO options. Mercury Electronic has been a pioneer in the crystal industry since 1973, offering a range of solutions for diverse timing applications.

Oscillators Replacement Considerations

Direct substitutes include other 25.1429 MHz LVCMOS oscillators in 2.0x1.6mm packages. Verify voltage compatibility and pinout alignment before replacement. Consider equivalent models from manufacturers such as Epson or NDK that offer similar form factors and electrical characteristics.