18QHTF21-6.004-OE

Overview

The 18QHTF21-6.004-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 6.004 MHz with a stability of ±50 ppm. The device utilizes LVCMOS output logic and requires a 1.8V supply voltage, drawing a maximum current of 21 mA. It features an enable/disable function and is housed in a compact 4-SMD, No Lead package. The component supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Integrates enable and disable functionality for power management control
• Delivers LVCMOS output signals compatible with standard digital interfaces
• Utilizes a surface-mount 4-SMD no-lead package for automated assembly

Applications

• General-purpose clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

Procurement Notes

Verify the specific frequency suffix matches the required 6.004 MHz specification, as the series includes various frequencies. Confirm the 1.8V supply requirement aligns with the target circuit design. Ensure the LVCMOS output type is compatible with the receiving logic inputs. Check that the -40°C to 85°C industrial temperature range meets environmental requirements. Validate the 4-SMD package dimensions against the PCB footprint.

Selection Notes

Select this component when a low-voltage 1.8V operation is required for timing applications. Consider the ±50 ppm stability for general digital circuits where high precision is not critical. The enable/disable feature makes it suitable for battery-powered devices requiring power saving modes. Choose based on the need for a small form factor via the 4-SMD package. Verify compatibility with LVCMOS logic levels before integration.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics. Mercury Electronic is a Taiwan-based manufacturer specializing in quartz crystals and oscillators since 1973. The company provides timing solutions including TCXOs and VCTCXOs alongside standard XO products.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with matching 6.004 MHz frequency and 1.8V supply. Cross-reference with other manufacturers offering 4-SMD LVCMOS oscillators with similar stability and temperature ranges. Ensure pinout compatibility for the 4-terminal configuration.