18QHTF21-76.913-PD

Overview

The 18QHTF21-76.913-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 76.913 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. This component serves as a precise clock source for electronic circuits requiring low-power operation and small form factors.

Feature Summary

• Supports standby mode for power management
• Utilizes LVCMOS output interface
• Compact surface-mount packaging

Applications

• Portable electronic devices
• Communication equipment
• Consumer electronics

Procurement Notes

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

Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The choice is driven by the need for a small 2.0x1.6mm footprint and integrated power-down capabilities. Consider the specific 76.913 MHz frequency requirement for the application timing needs. Evaluate thermal performance within the operating temperature range to ensure reliability under continuous use conditions.

Part Context

This oscillator belongs to the Mercury Electronics SMD oscillator series, which includes various frequencies and packages. The '18' prefix typically indicates the 1.8V supply voltage, while 'QHTF' denotes the specific series characteristics. Similar models in the lineup include variants with different frequencies such as 51.2 MHz or 96.768 MHz, sharing the same physical and electrical architecture.

Replacement Considerations

Direct replacements must match the 76.913 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and thermal characteristics. Cross-reference with other Mercury Electronics part numbers in the same series for equivalent performance metrics.