18QHTF21-13.55375-PD

Overview

The 18QHTF21-13.55375-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 13.55375 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby mode capability for power-down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface for digital signal compatibility
• Integrated standby mode for power management
• Compact 4-SMD no-lead surface mount package

Applications

• Telecommunications equipment timing circuits
• Consumer electronics data processing units
• Industrial control system clock generation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics to validate electrical characteristics and operating temperature ranges for your intended application environment.

Selection Notes

Select this component when a precise 13.55375 MHz clock source is required for LVCMOS-compatible digital circuits. The 1.8V operation makes it suitable for modern low-voltage systems. Consider the standby feature if power efficiency during idle states is critical. The small form factor supports high-density board designs. Verify that the operating temperature range meets your environmental conditions.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic Ind., Co., Ltd. The series offers various frequencies within a consistent 2.0x1.6mm package. These oscillators are designed for general-purpose timing applications requiring stable clock signals. The 'PD' suffix typically indicates specific packaging or handling characteristics defined by the manufacturer.

Replacement Considerations

Direct replacements must match the 13.55375 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Cross-reference with other manufacturers offering similar XO components in the same footprint. Verify pinout compatibility and electrical parameters before substitution.