18QHTF21-13.081-PD

Overview

The 18QHTF21-13.081-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 13.081 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, designed for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface for standard digital logic compatibility
• Integrated standby mode to reduce power consumption during idle periods
• Compact 4-SMD no-lead package suitable for space-constrained designs

Applications

• Critical system timing applications requiring accurate clock signals
• Embedded systems utilizing low-voltage CMOS logic families
• Portable electronic devices where power efficiency and small form factor are prioritized

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications 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 guidelines to ensure proper soldering and mechanical stability.

Selection Notes

Select this component when a precise 13.081 MHz clock source is required for LVCMOS-based circuits. Consider the 1.8V operating voltage and standby feature if power management is a design constraint. The small 2.0x1.6 mm package makes it suitable for high-density board layouts compared to larger oscillator packages.

Part Context

This part belongs to the H21 series of SMD oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline package. The 'PD' suffix typically indicates the inclusion of a power-down control pin, allowing for active and inactive states to manage system power usage effectively.

Replacement Considerations

Direct replacements must match the 13.081 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent performance characteristics such as phase noise and stability from other manufacturers offering similar low-profile oscillators.