18QHTF21-31.350-PD

Oscillators Overview

The 18QHTF21-31.350-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 31.35 MHz and requires a supply voltage of 1.8V. The device features LVCMOS output logic levels and supports a standby power-down function for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. The component is designed to operate reliably within an extended temperature range of -40°C to 85°C, ensuring stability in various electronic applications.

Oscillators Feature Summary

• Supports standby power-down mode for reduced power consumption
• Compact 4-SMD no-lead surface mount package design
• LVCMOS output logic compatibility
• Extended industrial operating temperature range

Oscillators Applications

• Consumer electronics requiring low-power clock sources
• Industrial control systems needing stable timing signals
• Portable devices utilizing 1.8V logic interfaces

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature when sourcing replacements. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm the 4-SMD 2.0x1.6mm footprint matches your PCB layout constraints. Check that the -40°C to 85°C temperature rating meets your environmental requirements before finalizing procurement.

Oscillators Selection Notes

Select this component when a precise 31.35 MHz reference is required alongside low power dissipation capabilities. The LVCMOS output ensures direct interfacing with compatible digital logic without additional level shifting. Consider the small form factor for space-constrained designs. Validate that the operating temperature range covers your intended application environment to guarantee long-term reliability.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages while maintaining consistent physical dimensions. The 'PD' suffix typically denotes the inclusion of a power-down control pin or functionality, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical 31.35 MHz frequency and 1.8V supply, such as 18QHTF21-31.350-OE if the OE pin configuration differs but electrical specs match. Ensure any replacement maintains the 4-SMD 2.0x1.6mm footprint and LVCMOS output characteristics.