18QHTF21-14.070-PD

Overview

The 18QHTF21-14.070-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 14.07 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down function to minimize energy consumption when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm by 1.6mm. The component supports operation within standard industrial temperature ranges suitable for general electronic timing requirements.

Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Includes standby mode capability for reduced power consumption
• Utilizes leadless SMD packaging for surface-mount assembly efficiency

Applications

• Battery-powered portable electronic devices
• General-purpose digital timing circuits
• Consumer electronics requiring low-profile oscillators

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the host circuit's power rails. Ensure the 14.07 MHz frequency matches the precise clocking needs of the application. Check for any specific handling precautions related to the leadless package type during assembly.

Selection Notes

Select this component when a low-voltage, low-power oscillator is required for space-constrained designs. The 1.8V supply and standby feature make it suitable for battery-operated systems where energy efficiency is critical. The small 2.0x1.6mm footprint allows for dense PCB layouts. Consider the LVCMOS output compatibility with the downstream digital logic family to ensure signal integrity without additional level shifting.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 1.8V LVCMOS form factor. The series is characterized by its compact leadless package and power-saving standby modes. Similar parts in the lineup differ primarily in their nominal output frequencies while maintaining consistent electrical characteristics and physical dimensions for design flexibility.

Replacement Considerations

Direct substitutes must match the 14.07 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal performance. Cross-reference with other manufacturers offering similar low-profile oscillators if Mercury stock is unavailable, ensuring identical electrical specifications.