18QHTF21-91.400-PD

Overview

The 18QHTF21-91.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 91.4 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact surface-mount package design

Applications

• General timing clock generation
• Digital signal processing systems
• Communication equipment

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the official datasheet before procurement. Ensure that the 1.8V supply voltage aligns with the target system's power architecture. Confirm the 4-SMD package footprint matches the PCB layout to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a precise 91.4 MHz reference is required for LVCMOS-compatible circuits. The choice is driven by the need for low-power operation via the standby feature and space-constrained designs due to the small 2.0x1.6mm footprint. Consider the manufacturer's reputation for quartz timing solutions.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The brand specializes in quartz crystals, oscillators, and filters. This specific model represents a fixed-frequency option within their portfolio, designed for applications requiring stable clock signals without the complexity of programmable devices.

Replacement Considerations

Direct substitutes include other 91.4 MHz LVCMOS oscillators in similar SMD packages from different manufacturers. Verify pin compatibility and voltage levels. Cross-reference with Mercury's own variants like the 18QHTF21-51.200-PD if frequency adjustments are permissible.