18QHTF21-10.3448-PD

Overview

The 18QHTF21-10.3448-PD is an active crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.3448 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby power-down feature for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for standard timing applications requiring precise clock signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode to reduce power consumption
• Compact surface-mount package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency suffix matches the required 10.3448 MHz specification. Confirm the 1.8V supply voltage requirement aligns with the target circuit design. Ensure the 4-SMD package footprint corresponds to the PCB layout constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required for the clock source. The LVCMOS output is suitable for standard digital logic families. Consider the small 2.0x1.6mm footprint for space-constrained designs. Verify that the operating temperature range meets the environmental conditions of the intended application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same physical package. The series provides standardized LVCMOS outputs and low voltage operation. The 'PD' suffix typically indicates the presence of a power-down control feature, distinguishing it from standard continuous-output variants.

Replacement Considerations

Direct substitutes must match the 10.3448 MHz frequency, 1.8V voltage, and LVCMOS output type. Compatible replacements should share the 4-SMD 2.0x1.6mm footprint to ensure mechanical interchangeability. Verify that any alternative part supports the standby power-down function if power management is critical.