18QHTF21-13.534-PD

Overview

The 18QHTF21-13.534-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a fixed frequency of 13.534 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a power-down function to reduce consumption during standby periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated power-down capability for energy efficiency
• Compact surface-mount form factor suitable for space-constrained designs

Applications

• Battery-powered portable electronic devices
• Digital signal processing systems
• Communication equipment requiring precise timing references

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Ensure the 1.8V supply rail stability meets the oscillator's requirements. Confirm that the 4-SMD package footprint aligns with the PCB layout specifications to avoid assembly issues.

Selection Notes

Select this component when a 13.534 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operation and power-down feature for applications prioritizing low power consumption. Evaluate the small 2.0x1.6mm package size against available board space constraints.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind., Co., Ltd, a supplier specializing in quartz crystals and oscillators. The series offers various frequencies within a standardized low-profile SMD package, providing consistent mechanical and electrical characteristics across different clock speeds.

Replacement Considerations

Direct substitutes must match the 13.534 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package dimensions. Verify pinout compatibility and thermal performance before swapping.