18QHTF21-14.7494-PD

Oscillators Overview

The 18QHTF21-14.7494-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 14.7494 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output signaling for digital interface compatibility.
• Includes a dedicated Standby or Power Down pin to reduce power consumption when inactive.
• Utilizes a surface-mount 4-pin no-lead package design suitable for automated assembly.

Oscillators Applications

• Clock signal generation for high-speed digital circuits
• Timing reference for communication interfaces
• Embedded system microcontroller clock sources

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's jitter specifications. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package dimensions precisely to avoid soldering defects.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V clock source is required for space-constrained designs. The LVCMOS output is appropriate for standard digital logic families. Consider the standby feature if power management during idle states is a critical design requirement. Verify frequency accuracy needs against the standard series specifications provided in the datasheet.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of a power-down capability, distinguishing it from non-standby variants in the same physical package family.

Oscillators Replacement Considerations

Compatible substitutes include other 14.7494 MHz LVCMOS oscillators in 4-SMD 2.0x1.6mm packages with 1.8V operation and standby functionality. Verify pinout compatibility and electrical parameters such as phase noise and duty cycle before substitution.