18QHTF21-36.810-PD

Oscillators Overview

The 18QHTF21-36.810-PD is a 36.81 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates with a 1.8V supply voltage and utilizes LVCMOS output logic. The component features ±50ppm frequency stability and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output logic interface
• Standby power down capability
• Compact 4-SMD no lead package

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the LVCMOS output swing matches the input requirements of the receiving logic device. Check for any specific environmental temperature range requirements beyond standard operating limits.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 36.81 MHz reference frequency. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small 2.0x1.6mm footprint for space-constrained PCB layouts. The standby feature supports applications requiring power efficiency during idle periods.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down control pin or function. These components are designed for high reliability in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 36.81 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent frequency stability and phase noise characteristics. Ensure the replacement supports the same standby functionality if required by the design.