18QHTF21-69.000-PD

Overview

The 18QHTF21-69.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 69.000 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a compact surface-mount package with dimensions of 2.0mm x 1.6mm in a 4-SMD configuration without leads. The component supports a standby or power-down mode to manage energy consumption effectively.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality for power management
• Utilizes a leadless 4-SMD surface-mount package

Applications

• Battery-powered portable devices
• Low-voltage digital systems
• Compact electronic circuits requiring precise timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range to maintain signal integrity. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a 69.000 MHz clock source is required for 1.8V logic families. Consider the small form factor for space-constrained designs. Evaluate the need for standby modes if power efficiency is critical. Compare against other frequencies in the 18QHTF21 series if alternative timing solutions are needed.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies tailored for different digital applications. The 'PD' suffix typically indicates the inclusion of a power-down feature. These components are widely used in consumer electronics and industrial equipment requiring reliable timing signals.

Replacement Considerations

Direct substitutes include other 69.000 MHz oscillators from Mercury Electronics with identical pinout and voltage specifications. Cross-reference with similar LVCMOS oscillators from other manufacturers ensuring matching voltage, package size, and output logic levels.