18QHTF21-86.455-PD

Overview

The 18QHTF21-86.455-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 86.455 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V. A key functional characteristic is the inclusion of a standby or power-down mode capability, allowing for energy management during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes. This specific part number denotes the 86.455 MHz frequency variant within the 18QHTF21 series.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Surface-mount 4-SMD no-lead package design

Applications

• General clock signal generation for digital circuits
• Timing reference for communication interfaces
• Embedded system clock sources

Procurement Notes

Verify the exact electrical specifications, including frequency stability and load capacitance requirements, directly from the official product datasheet provided by Mercury Electronic Ind. Co., Ltd. Ensure that the 1.8V supply voltage and LVCMOS output compatibility align with the target circuit design. Confirm that the 4-SMD no-lead package dimensions meet the PCB footprint constraints. Cross-reference the full part number to ensure the correct frequency variant is ordered.

Selection Notes

Select this component when a precise 86.455 MHz timing source is required with low-voltage 1.8V operation. The choice depends on the necessity for LVCMOS outputs and the availability of a power-down feature for power-sensitive applications. Consider the physical size constraints imposed by the 4-SMD no-lead package. Evaluate if the standard XO performance meets the jitter and stability requirements of the specific application compared to other oscillator types.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequency options, such as 8.000 MHz, 18.1059 MHz, and 51.200 MHz, all sharing similar packaging and electrical characteristics like 1.8V operation and LVCMOS outputs. The manufacturer has a long history in quartz crystal production, positioning this component within their standard frequency control product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Equivalent alternatives may include parts from other manufacturers offering 86.455 MHz XO with 1.8V LVCMOS output in a 4-SMD package, but direct pin-to-pin and specification matching must be verified through individual datasheets.