18QHTF21-49.3633-PD

Overview

The 18QHTF21-49.3633-PD is a standard frequency crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 49.3633 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a power-down function for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 5.0mm x 3.2mm. The component is designed for surface mount installation and functions within an operating temperature range suitable for industrial applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated power-down capability to reduce consumption
• Compact 4-SMD no-lead surface mount packaging
• Standard frequency operation at 49.3633 MHz

Applications

• Digital signal processing clock sources
• Data communication equipment timing
• Microcontroller system clocks
• Industrial control systems

Procurement Notes

Verify the specific suffix PD indicates the power-down feature as documented. Confirm the 1.8V supply requirement matches the target circuit design. Ensure the 4-SMD footprint aligns with the PCB layout specifications. Check RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a precise 49.3633 MHz reference is required with low power consumption. The LVCMOS output suits direct interfacing with digital logic families. Consider the 5.0x3.2mm package size for space-constrained designs. Validate thermal performance within the specified operating range for the intended environment.

Part Context

This part belongs to the Mercury Electronics quartz oscillator family, which includes crystals, filters, and oscillators. The manufacturer specializes in Taiwan-based frequency control solutions. This specific model represents a surface-mount variant designed for modern electronic assemblies requiring stable timing references.

FAQ

What is the output logic type?

The 18QHTF21-49.3633-PD uses LVCMOS output logic.

Does the device support power management?

Yes, it includes a standby or power-down function to minimize power usage.