18QHTF21-38.5505-PD

Oscillators Overview

The 18QHTF21-38.5505-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 38.5505 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby capability for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a precise 38.5505 MHz clock source is required for low-power applications. The LVCMOS output is suitable for interfacing with standard digital logic families operating at 1.8V. Consider the small 2.0x1.6 mm form factor if space is limited on the board. Verify that the operating temperature range meets the environmental conditions of the intended application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies within a similar physical footprint. The 'PD' suffix indicates the inclusion of a power-down or standby function, distinguishing it from continuous-operation variants. Mercury Electronics is a specialized manufacturer of frequency control products.

Oscillators Replacement Considerations

Direct replacements must match the 38.5505 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pin compatibility and electrical characteristics such as phase noise and jitter if critical. Cross-reference with other manufacturers offering identical specifications in the same package type.