18QHTF21-1.04857-PD

Overview

The 18QHTF21-1.04857-PD is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 1.04857 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range suitable for standard commercial applications.

Feature Summary

• Supports low voltage operation at 1.8V for energy efficiency
• Includes standby mode to reduce power consumption during idle periods
• Utilizes LVCMOS output logic for digital interface compatibility

Applications

• Battery-powered portable electronic devices
• General purpose clock signal generation
• Digital communication interfaces requiring precise timing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct packaging and tolerance specifications. Confirm that the 4-SMD no-lead package matches your PCB footprint requirements. Check for any recent updates to the RoHS compliance status or lead-free certification before finalizing procurement orders.

Selection Notes

Select this component when a low-frequency clock source near 1 MHz is required for 1.8V logic systems. Consider the small 2.0x1.6mm footprint for space-constrained designs. Ensure the LVCMOS output swing aligns with the input requirements of the downstream circuitry. Evaluate the standby feature benefits if power conservation is a critical design constraint.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronic. The series offers various frequencies and supply voltages. The 'PD' suffix typically indicates specific packaging or tape-and-reel configuration details provided by the manufacturer. This series is designed for applications requiring stable clock signals in compact form factors.

Replacement Considerations

Direct substitutes must match the 1.04857 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as load current and jitter performance. Consult official cross-reference lists from Mercury Electronic for validated alternative part numbers.