18QHTF21-29.9999-PD

Oscillators Overview

The 18QHTF21-29.9999-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 29.9999 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and includes a standby (power down) function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Utilizes LVCMOS output interface

Oscillators Applications

• General timing clock applications
• Embedded systems requiring precise frequency reference
• Portable electronic devices due to low voltage and small form factor

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's specifications. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required for your manufacturing process.

Oscillators Selection Notes

Select this component when a 29.9999 MHz reference is needed in a minimal footprint. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the LVCMOS output compatibility with your target microcontroller or FPGA inputs. The standby feature allows for power savings in battery-operated applications where the clock is not always active.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a 2.0x1.6 mm SMD package. The series typically supports LVCMOS outputs and low-voltage operation. Similar parts in this family differ primarily by their nominal frequency and potentially by output enable/disable configurations, but share the same physical dimensions and basic electrical characteristics.

Oscillators Replacement Considerations

Direct replacements must match the 29.9999 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar ultra-small oscillators if Mercury stock is unavailable.