18QHTF21-11.70388-PD

Overview

The 18QHTF21-11.70388-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 11.70388 MHz with an LVCMOS output logic level. 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 2.0mm x 1.6mm. This component provides precise clock signals for digital circuits requiring stable timing references.

Feature Summary

• Supports standby power-down mode for energy efficiency
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose clock generation for embedded systems
• Timing reference for low-voltage digital logic circuits
• Portable electronic devices requiring power management

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this oscillator when a precise 11.70388 MHz clock signal is required for LVCMOS-compatible components. Consider the 1.8V operating voltage and standby capability if power consumption is a critical constraint. The small form factor makes it suitable for space-constrained designs where larger packages cannot be accommodated within the available board area.

Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized physical footprint. These components are engineered for reliability in consumer electronics and industrial applications, providing stable frequency generation without the need for external tuning elements.

Replacement Considerations

Direct substitutes must match the 11.70388 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications such as current consumption and startup time. Cross-reference with other manufacturers offering similar SMD oscillators to ensure functional equivalence in the target application.