18QHTF21-10.245-PD

Overview

The 18QHTF21-10.245-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.245 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability for energy efficiency
• Utilizes LVCMOS output logic for digital interface compatibility

Applications

• General clock signal generation in electronic circuits
• Embedded systems requiring precise timing references
• Portable devices utilizing low-power oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper assembly and electrical connection.

Selection Notes

Select this component when a 10.245 MHz reference is required with minimal power consumption. The integrated power-down feature makes it suitable for battery-operated applications. Ensure the LVCMOS output level is compatible with the input thresholds of the connected microcontroller or FPGA.

Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. The suffix PD indicates the inclusion of a power-down control pin, distinguishing it from continuous-operation variants.

Replacement Considerations

Direct substitutes must match the 10.245 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility, specifically the power-down pin configuration, to ensure seamless integration without PCB redesign.