18QHTF21-37.4784-PD

Oscillators Overview

The 18QHTF21-37.4784-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 37.4784 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down capability for energy management
• Utilizes LVCMOS output interface

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock frequencies
• Embedded systems needing compact oscillator solutions

Oscillators Procurement Notes

Verify the specific part number suffix to ensure compatibility with required frequency and package specifications. Confirm that the 1.8V supply voltage aligns with the target system design. Check for any specific environmental ratings or temperature ranges if operating in extreme conditions. Ensure the LVCMOS output matches the receiving circuit's input requirements.

Oscillators Selection Notes

Select this component when a small form factor and low voltage operation are critical. The 2.0x1.6mm package suits space-constrained designs. Consider the 1.8V requirement against available power rails. The standby feature adds value for battery-powered applications where power efficiency is prioritized over continuous operation.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 4-SMD no-lead footprint. The series is designed for applications requiring reliable clock signals in minimal space. The specific frequency of 37.4784 MHz targets niche timing needs distinct from common multiples like 3.796875 MHz or 51.2 MHz found in the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 37.4784 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Alternative oscillators from other manufacturers may require level shifting if they do not support 1.8V LVCMOS directly.