18QHTF21-37.126-OE

Oscillators Overview

The 18QHTF21-37.126-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 37.126 MHz with a frequency stability of 50 ppm. The device utilizes an LVCMOS output logic and requires a supply voltage of 1.8V. Maximum current consumption is specified as 23 mA. The component features an enable/disable control function and is housed in a compact 4-SMD, No Lead package.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes hardware enable and disable control functionality
• Utilizes a leadless SMD package design for surface mount assembly

Oscillators Applications

• Timing and clock signal generation in electronic devices
• Digital system synchronization circuits
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail meets the maximum current draw specifications during peak operation. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly errors. Cross-reference the datasheet revision date to ensure compliance with current manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 37.126 MHz reference is required for low-voltage digital systems. The LVCMOS output is suitable for direct interfacing with microcontrollers and FPGAs operating at 1.8V. Consider the 50 ppm stability limit for applications requiring moderate timing accuracy. The enable pin allows for power management strategies in battery-operated devices.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics standard XO series, designed for general-purpose timing applications. The brand has extensive experience in quartz crystal manufacturing since 1973. This specific model represents a compact solution for modern portable electronics where space constraints and low power consumption are critical design factors.

Oscillators Replacement Considerations

Direct substitutes must match the 37.126 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify that alternative components offer equivalent 50 ppm stability and similar physical dimensions to ensure board compatibility without redesign.