18QHTF21-24.500-PD

Oscillators Overview

The 18QHTF21-24.500-PD is a 24.5 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and features LVCMOS output logic. The device supports 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

• Supports Standby mode for power reduction
• Compact surface-mount form factor

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing LVCMOS interfaces
• Consumer electronics with space constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout specifications to ensure proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 24.5 MHz clock signal is required for LVCMOS-compatible digital circuits. The choice is driven by the need for a low-voltage 1.8V operation and a small 2.0x1.6mm footprint. Consider the standby feature if power efficiency is critical for battery-operated applications or systems requiring periodic sleep states.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within the XO category, all sharing similar electrical characteristics such as LVCMOS outputs and low-voltage operation. The 'PD' suffix typically indicates the presence of a power-down pin or functionality, distinguishing it from non-standby variants.

Oscillators Replacement Considerations

Direct substitutes must match the 24.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify compatibility with any existing power-down control signals. Alternative parts from other manufacturers require careful evaluation of timing parameters and pinout definitions to ensure functional equivalence.