18QHTF21-8.300-PD

Overview

The 18QHTF21-8.300-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 8.3 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function to reduce consumption during standby periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component serves as a precise clock source for digital circuits requiring low-voltage operation.

Feature Summary

• Supports LVCMOS output logic for direct interface with digital loads
• Includes power-down capability to minimize current draw during inactive states
• Operates on a single 1.8V supply voltage rail

Applications

• Clock generation for microprocessors and microcontrollers
• Timing reference for communication interfaces
• Synchronization sources for embedded systems

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down functionality when sourcing replacements. Ensure the operating voltage matches the target circuit's 1.8V requirement. Confirm the 4-SMD no-lead package footprint aligns with the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage 1.8V clock source is required. The 8.3 MHz frequency suits specific timing applications. Consider the small 2.0x1.6mm package size for space-constrained designs. Verify that the LVCMOS output level is compatible with the receiving logic inputs.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-pin SMD form factor. These components are engineered for high stability and reliability in consumer electronics and industrial control applications requiring precise timing signals.

Replacement Considerations

Compatible substitutes include other 8.3 MHz LVCMOS oscillators in a 4-SMD 2.0x1.6mm package with 1.8V operation. Ensure the replacement supports the power-down feature if active standby management is critical to the system design.