18QHTF21-75.405-OE

Overview

The 18QHTF21-75.405-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.405 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. Key functional features include an integrated enable/disable control mechanism to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm, suitable for space-constrained surface-mount designs.

Feature Summary

• LVCMOS output logic interface
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded electronics requiring low voltage operation

Procurement Notes

Verify the specific ordering suffix against official Mercury Electronics documentation to ensure correct configuration. Confirm that the OE suffix aligns with required packaging or tape-and-reel specifications if applicable. Cross-reference the part number with the manufacturer's current datasheet to validate active status and availability before procurement.

Selection Notes

Select this component when a precise 75.405 MHz clock source is required within a 1.8V logic environment. The choice is driven by the need for small form factor integration via the 2.0x1.6mm footprint. Ensure the application supports LVCMOS signaling levels and requires hardware-based enable/disable control for power management strategies.

Part Context

This oscillator belongs to the Mercury Electronics SMD series, which focuses on quartz-based frequency control solutions. The brand specializes in manufacturing various crystal devices including TCXOs and VCXOs since 1973. This specific model represents a standard XO variant optimized for modern digital circuits requiring stable frequency references in minimal board space.

Replacement Considerations

Direct substitutes may include other 75.405 MHz LVCMOS oscillators in similar 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as load capacitance and drive strength before substitution.