18QHTF21-42.000-PD

Oscillators Overview

The 18QHTF21-42.000-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.0 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is compliant with RoHS standards, indicating restricted hazardous substances.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down functionality
• Features LVCMOS output signal compatibility

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication modules utilizing standard clock signals
• Embedded systems with space-constrained PCB layouts

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target application's power rails. Ensure the 4-SMD no-lead package footprint matches your manufacturing capabilities and assembly processes. Check for any specific handling instructions regarding electrostatic discharge protection during storage and installation.

Oscillators Selection Notes

Select this model when a precise 42.0 MHz clock source is required for 1.8V logic interfaces. Consider the small 2.0x1.6 mm footprint if board space is limited. Evaluate the need for power-down features to extend battery life in portable applications. Compare performance metrics such as phase noise and stability against alternative oscillators from other manufacturers if strict timing jitter specifications are critical for your design.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within similar compact packages. The 'PD' suffix typically denotes the inclusion of a power-down pin or feature. These components are generally used in consumer electronics and industrial equipment where size and power efficiency are prioritized over high-frequency performance found in larger packages.

Oscillators Replacement Considerations

Direct substitutes must match the 42.0 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with other manufacturers offering similar small-form-factor oscillators if Mercury Electronics parts are unavailable.