18QHTF21-10.135-PD

Overview

The 18QHTF21-10.135-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 10.135 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component includes a standby (power down) function to support energy efficiency in portable systems.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode for power management
• Utilizes surface mount packaging for automated assembly

Applications

• Portable electronic devices requiring low power consumption
• Battery-powered equipment needing efficient clock signals
• Digital communication systems utilizing standard logic interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design 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. Check for any specific operating temperature range limitations defined in the official datasheet for your application environment.

Selection Notes

Select this component when a precise 10.135 MHz clock signal is required for LVCMOS-compatible circuits. Consider its low voltage operation and standby feature for battery-sensitive designs. Evaluate the small form factor suitability for space-constrained layouts. Compare performance metrics such as phase noise and stability against other available oscillators if high-precision timing is critical for the specific application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm package. These components are designed for general-purpose timing applications where size and power efficiency are prioritized over ultra-high precision specifications found in specialized RF or telecom-grade oscillators.

Replacement Considerations

Direct substitutes must match the 10.135 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with Mercury Electronics' official replacement lists or equivalent parts from other manufacturers ensuring identical functional parameters.