18QHTF21-38.500-PD

Oscillators Overview

The 18QHTF21-38.500-PD is a 38.5 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby and power-down functionality to reduce consumption
• Utilizes a small form factor 4-SMD no-lead package

Oscillators Applications

• General purpose clock generation in embedded systems
• Timing reference for low-voltage digital circuits
• Portable electronic devices requiring power management

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD no-lead package footprint matches the PCB layout specifications to ensure proper assembly and electrical connectivity.

Oscillators Selection Notes

Select this component when a precise 38.5 MHz timing source is required for LVCMOS-compatible logic families. The choice is driven by the need for a low-profile surface-mount solution with integrated power-down capabilities. Consider the operating temperature range and stability specifications relative to the environmental conditions of the final application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. The 'PD' suffix indicates the inclusion of power-down control, distinguishing it from standard continuous-output variants within the same physical footprint family.

Oscillators Replacement Considerations

Direct substitutes must match the 38.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pin compatibility and thermal characteristics. Cross-reference with other manufacturers offering identical form-factor XO components with equivalent electrical parameters.