18QHTF21-13.500-PD

Overview

The 18QHTF21-13.500-PD is a 13.5 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates with a supply voltage of 1.8V and utilizes LVCMOS output logic. The device features a Standby (Power Down) function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The component supports surface mount mounting type and is designed for operation within a temperature range of -40°C to 85°C.

Feature Summary

• Supports low-voltage 1.8V operation with LVCMOS output compatibility
• Includes standby mode capability for effective power down management
• Utilizes a miniature 4-SMD no-lead package for space-constrained designs

Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock signals
• Embedded systems needing precise timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that 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 reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Selection Notes

Select this component when a small form factor and low voltage operation are critical. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the operating temperature range if the application involves extreme environmental conditions. The standby feature makes it suitable for battery-powered applications where power efficiency is a priority.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the presence of a power-down or standby control pin. This specific model provides a stable 13.5 MHz clock signal in a highly compact package suitable for modern miniaturized electronics.

Replacement Considerations

Direct replacements must match the 13.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify electrical parameters such as current consumption and stability. Ensure the replacement part supports the same standby functionality. Consult official substitution lists from Mercury Electronics for validated alternatives.