18QHTF21-2.560-PD

Oscillators Overview

The 18QHTF21-2.560-PD is a 2.56 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 component features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It supports a Standby (Power Down) mode for energy management. The device is designed for standard frequency control applications requiring precise timing signals in portable electronics.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby power down functionality
• Utilizes LVCMOS output logic interface

Oscillators Applications

• Portable electronic devices
• Battery-powered equipment
• General purpose clock generation

Oscillators Procurement Notes

Verify the specific suffix 'PD' against official Mercury Electronics documentation to confirm the presence of the power-down feature and exact electrical characteristics. Ensure the 1.8V supply requirement aligns with system design constraints. Cross-reference the 4-SMD no-lead package dimensions with PCB footprint specifications prior to integration.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V oscillator is required for space-constrained designs. The 2.0x1.6mm form factor suits high-density layouts. Confirm that LVCMOS compatibility matches the receiving digital circuitry. Evaluate the need for power-down capabilities if battery life optimization is a primary design goal.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronic. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates specific operational modes or packaging variations defined by the manufacturer. These components are part of Mercury's broader portfolio of frequency control products established since 1973.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with matching 2.56MHz frequency and 1.8V operation. Verify pinout compatibility and package dimensions before swapping. Alternative manufacturers may offer similar LVCMOS oscillators but require careful verification of electrical parameters and thermal performance.