18QHTF21-40.370-PD

Oscillators Overview

The 18QHTF21-40.370-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fundamental frequency of 40.37 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down function to minimize energy consumption when inactive. The component is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount assembly.

Oscillators Feature Summary

• Integrated standby mode for power management
• LVCMOS compatible digital output interface
• Compact 4-SMD no-lead surface mount footprint

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication modules utilizing LVCMOS interfaces
• Embedded systems with strict size constraints

Oscillators Procurement Notes

Verify the specific ordering suffix and frequency tolerance against the manufacturer's current datasheet before procurement. Ensure that the 1.8V supply voltage aligns with the target system's power rails. Confirm the package orientation and pinout configuration matches the design footprint to prevent assembly errors during production.

Oscillators Selection Notes

Select this component when a precise 40.37 MHz reference signal is required within a minimal physical envelope. The choice is driven by the need for LVCMOS compatibility and the inclusion of a power-down feature to extend battery life in portable applications. Consider the thermal operating range and load capacitance requirements relative to the host circuit design.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series is characterized by small form factors and low-voltage operation, targeting modern consumer electronics and industrial control applications where space and power efficiency are critical design parameters.

Oscillators Replacement Considerations

Direct replacements must match the 40.37 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package dimensions. Verify pin compatibility and electrical specifications with alternative manufacturers offering similar XO components.