18QHTF21-27.375-PD

Oscillators Overview

The 18QHTF21-27.375-PD is a 27.375 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates with an LVCMOS output logic and supports a supply voltage of 1.8V. The device features a Standby (Power Down) control function, allowing for power management during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Generates a precise 27.375 MHz clock signal using standard XO technology
• Supports low-voltage operation at 1.8V for energy-efficient applications
• Includes standby mode capability to reduce power consumption when not in use

Oscillators Applications

• Digital signal processing systems requiring stable timing references
• Communication equipment utilizing LVCMOS interfaces
• Portable electronic devices where low power consumption is critical

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific manufacturing date codes or lot traceability requirements if applicable to your quality standards.

Oscillators Selection Notes

Select this component when a fixed 27.375 MHz frequency is required with LVCMOS compatibility. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. The standby feature is advantageous for battery-operated devices. Consider the small 2.0x1.6mm package size for space-constrained designs. Ensure the application does not require spread spectrum or other advanced modulation features not present in this standard XO.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the presence of a power-down/standby pin, distinguishing it from models without this control feature. These oscillators are designed for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 27.375 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that alternative parts also include the standby functionality if power management is required. Cross-reference pinouts and electrical characteristics such as jitter and phase noise to ensure functional equivalence.