18QHTF21-21.616-PD

Oscillators Overview

The 18QHTF21-21.616-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 21.616 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range suitable for industrial applications.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for energy efficiency
• Includes standby or power-down functionality to reduce consumption
• Provides stable LVCMOS signal output for digital circuits
• Utilizes a small footprint SMD package for space-constrained designs

Oscillators Applications

• Battery-powered portable electronic devices
• Industrial control systems requiring precise timing
• Communication equipment utilizing clock synchronization
• Embedded systems with limited power budgets

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package dimensions fit within your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing standards. Validate the operating temperature range against your environmental conditions.

Oscillators Selection Notes

Select this component when a precise 21.616 MHz clock source is required for LVCMOS-compatible logic. Consider the 1.8V supply constraint and ensure compatibility with your voltage regulators. The integrated power-down feature makes it suitable for applications requiring active management of power states. Evaluate the thermal performance if the device will operate near the upper limits of its specified temperature range.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized 2.0x1.6mm package. Mercury Electronics has extensive experience in quartz crystal manufacturing, providing reliable timing solutions for global electronics markets.

Oscillators Replacement Considerations

Direct substitutes must match the 21.616 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter. Cross-reference with other manufacturers offering similar XO specifications in the same form factor.