18QHTF21-13.5605-PD

Overview

The 18QHTF21-13.5605-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 13.5605 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode for power management
• Compact surface mount package design

Applications

• Communications equipment requiring precise timing at 13.5605 MHz

Procurement Notes

Verify the specific ordering suffix to ensure the correct package variant and frequency tolerance match the design requirements. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Check for any specific temperature range limitations if operating in extreme environments. Ensure the LVCMOS output level is compatible with the receiving logic inputs.

Selection Notes

Select this component when a stable 13.5605 MHz clock signal is required for communication interfaces. The low profile SMD package suits space-constrained PCB layouts. Consider the 1.8V operation for low-power applications. Verify that the LVCMOS output swing meets the noise margin requirements of the connected digital circuitry.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and output types. The -PD suffix typically denotes a specific packaging or tape-and-reel configuration. These oscillators are designed for general-purpose timing applications in consumer and industrial electronics.

Replacement Considerations

Cross-reference with other 13.5605 MHz XO parts from Mercury or competitors. Ensure pinout compatibility for the 4-SMD No Lead package. Verify identical supply voltage and output logic levels before substitution.