18QHTF21-107.900-PD

Overview

The 18QHTF21-107.900-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 107.9 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby power-down mode. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is suitable for digital systems requiring precise clock signals.

Feature Summary

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

Applications

• Battery-powered portable devices
• Digital communication systems
• Consumer electronics requiring precise timing

Procurement Notes

Verify the specific ordering suffix to ensure the correct frequency and package variant matches the design requirements. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Check for RoHS compliance status if environmental regulations apply to the manufacturing process. Ensure the 4-SMD no-lead package footprint fits the PCB layout constraints.

Selection Notes

Select this component when a 107.9 MHz clock source is required with minimal power consumption. The 1.8V operating voltage makes it appropriate for modern low-voltage digital circuits. Consider the small 2.0x1.6 mm form factor for space-constrained designs. Verify that the LVCMOS output level is compatible with the receiving logic inputs of the target application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD package. These oscillators are designed for general-purpose clocking needs in consumer and industrial electronics. The manufacturer specializes in quartz-based frequency control products.

Replacement Considerations

Direct substitutes include other 107.9 MHz XO components in 4-SMD packages with 1.8V LVCMOS outputs. Cross-reference with similar Mercury Electronics part numbers such as 18QHTF21-107.900 without the PD suffix if power-down is not required. Verify pinout compatibility before substitution.