18QHTF21-34.4347-PD

Oscillators Overview

The 18QHTF21-34.4347-PD is a 34.4347 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The device features a power-down standby function to reduce consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. The unit supports surface mount mounting types and functions within an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Supports low-voltage 1.8V operation with LVCMOS interface
• Includes power-down standby capability for energy management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing LVCMOS compatible interfaces
• Industrial control modules operating in extended temperature ranges

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and meets the current specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions precisely to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided in the official datasheet to maintain component integrity during manufacturing.

Oscillators Selection Notes

Select this component when a precise 34.4347 MHz clock signal is required for LVCMOS-based digital circuits. It is suitable for applications demanding a balance between size constraints and performance stability. Consider the -40°C to 85°C operating range to ensure reliability in varied environmental conditions. The power-down feature makes it ideal for battery-operated systems where standby current reduction is critical for extending operational life.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequency options within a consistent small form factor. These oscillators are designed for general-purpose timing applications in consumer electronics and industrial equipment. The manufacturer specializes in quartz crystals and timing solutions, providing reliable frequency control components for global markets.

Oscillators Replacement Considerations

Direct substitutes must match the 34.4347 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pin compatibility and electrical characteristics such as current consumption and stability before swapping. Consult distributor databases for cross-reference lists or contact Mercury Electronics for approved alternative part numbers.