18QHTF21-11.970-PD

Overview

The 18QHTF21-11.970-PD is a standard XO (Crystal Oscillator) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.97 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a Standby (Power Down) function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The operating temperature range spans from -40°C to 85°C.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Includes standby functionality to enable power down capabilities
• Utilizes quartz crystal technology for stable timing generation

Applications

• General purpose clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Consumer electronics requiring compact oscillator solutions

Procurement Notes

Verify the specific frequency suffix matches the required 11.97 MHz operation. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint corresponds to the PCB layout requirements. Check the industrial temperature rating against environmental constraints.

Selection Notes

Select this component when a small form factor oscillator is required for 1.8V logic systems. The LVCMOS output is suitable for direct interfacing with standard digital inputs. Consider the power-down feature if energy efficiency during idle states is a priority. Verify availability of the specific 11.97 MHz variant within the 18QHTF21 series.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronic. The series offers various frequencies with consistent 2.0x1.6 mm packaging. It is designed for applications needing reliable timing in space-constrained environments. The product line supports both standard and specialized frequency options.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical characteristics but different frequencies. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators with 1.8V supply and standby pins. Ensure functional equivalence in terms of load capacitance and drive strength.