18QHTF21-27.500-PD

Oscillators Overview

The 18QHTF21-27.500-PD is a 27.5 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a supply voltage of 1.8V and features an LVCMOS output logic level. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. Key functional specifications include support for Standby (Power Down) mode and availability in a Strip packaging format.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability
• Utilizes LVCMOS output logic

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. 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 constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a precise 27.5 MHz reference is required in space-constrained applications. The small 2.0x1.6mm footprint makes it suitable for dense PCB layouts. Consider the 1.8V operating voltage if your system utilizes low-power logic families. The standby feature offers energy savings for battery-operated devices. Evaluate the LVCMOS interface compatibility with your target microcontroller or FPGA inputs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically includes various frequencies such as 8.000 MHz, 18.1059 MHz, and 68.665 MHz within the same physical package. The 'PD' suffix indicates the strip packaging type, distinguishing it from other packaging options like tape and reel or individual units found in distributor listings.

Oscillators Replacement Considerations

Direct substitutes may include other 27.5 MHz XO components in a 4-SMD 2.0x1.6mm package with 1.8V operation and LVCMOS outputs. Verify pinout compatibility and electrical characteristics before substitution.