18QHTF21-1.000-PD

Overview

The 18QHTF21-1.000-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.0 MHz with an LVCMOS output signal. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides standard LVCMOS output signals

Applications

• Battery-powered electronic devices
• Portable consumer electronics
• General-purpose digital timing circuits

Procurement Notes

Verify the specific suffix (PD) against official Mercury Electronics documentation to confirm the package type and lead-free status. Ensure the operating temperature range meets your system requirements. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the 1.8V supply voltage aligns with your target circuit design before procurement.

Selection Notes

Select this component when a precise 1.0 MHz clock source is required for low-power applications. The small 2.0x1.6 mm footprint makes it suitable for space-constrained designs. Consider the LVCMOS interface compatibility with your microcontroller or logic inputs. Evaluate the standby current consumption if power management is critical for the end product.

Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The PD suffix typically indicates a specific packaging configuration. These oscillators are designed for high stability and reliability in modern electronic systems requiring precise timing references.

Replacement Considerations

Direct substitutes include other 1.0 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications before substitution. Alternative models from the same manufacturer may offer different frequency options.