18QHTF21-1.2896-PD

Overview

The 18QHTF21-1.2896-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a frequency of 1.2896 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is RoHS compliant and designed for applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 1.8V supply
• Includes standby power-down functionality
• Compact surface-mount package design

Applications

• Battery-powered portable devices
• General-purpose digital timing circuits
• Embedded systems requiring stable clock sources

Procurement Notes

Verify the specific ordering suffix to ensure correct frequency and package configuration. Confirm RoHS compliance status if required by project specifications. Check manufacturer documentation for exact electrical characteristics and operating temperature ranges before integration.

Selection Notes

Select this component when a 1.2896 MHz clock signal is required with low power consumption. Ensure the system supports 1.8V logic levels and LVCMOS outputs. Consider the small footprint for space-constrained PCB layouts.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates a specific package or tape-and-reel configuration provided by the distributor.

Replacement Considerations

Direct substitutes must match the 1.2896 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical parameters before substitution.