18QHTF21-37.399439-PD

Oscillators Overview

The 18QHTF21-37.399439-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 37.399439 MHz with an LVCMOS output logic level. The device functions on a 1.8V supply voltage and includes a standby or power-down control feature for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down functionality
• Utilizes LVCMOS output logic interface
• Features a compact surface-mount package

Oscillators Applications

• Portable consumer electronics
• Communication modules
• Embedded computing systems

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB layout accommodates the 4-SMD no-lead footprint dimensions accurately to guarantee reliable soldering and electrical performance.

Oscillators Selection Notes

Select this component when a precise 37.399439 MHz clock signal is required in low-power environments. The LVCMOS output ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage and the availability of power-down features for battery-operated devices. Verify that the 2.0x1.6mm package fits within the available board space constraints.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series offers various frequencies and voltage options in a small form factor. Mercury Electronics has been a pioneer in the crystal industry since 1973, providing reliable timing solutions for global markets. This specific part represents a standard XO variant optimized for modern compact electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 37.399439 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering identical specifications to ensure functional equivalence without redesigning the host circuit.