18QHTF21-40.400-PD

Oscillators Overview

The 18QHTF21-40.400-PD is a 40.4 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates with an LVCMOS output logic and requires a 1.8V supply voltage. The component features a Standby (Power Down) function for power management. It is housed in a compact 2.0 x 1.6 mm surface-mount package, specifically a 4-SMD, No Lead configuration.

Oscillators Feature Summary

• Supports Low Voltage Complementary Metal-Oxide-Semiconductor (LVCMOS) output signaling
• Includes standby mode capability for power down functionality
• Utilizes a small form factor 4-SMD no lead package design

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded applications requiring compact oscillator solutions

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet to ensure reliable oscillator performance.

Oscillators Selection Notes

Select this component when a 40.4 MHz timing source is required with a 1.8V operating voltage. Consider the 2.0 x 1.6 mm footprint for space-constrained designs. Ensure compatibility with LVCMOS interfaces and verify that the standby feature aligns with system power management strategies.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer has extensive experience in quartz crystal production. This specific model represents a low-profile surface-mount option suitable for modern portable and high-density electronic devices.

Oscillators Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical pinout and electrical characteristics. Verify that any alternative maintains the 40.4 MHz frequency, 1.8V supply, and LVCMOS output type to ensure functional equivalence without redesign.