18QHTF21-16.182539-PD

Oscillators Overview

The 18QHTF21-16.182539-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 16.182539 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports standby mode for power reduction
• Compact surface-mount package design
• LVCMOS output interface compatibility

Oscillators Applications

• General purpose digital circuit timing
• Embedded system clock generation
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that 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 constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly and long-term performance stability.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a small form factor. The LVCMOS output is suitable for direct interfacing with standard CMOS logic families. Consider the standby feature if power efficiency during idle periods is a critical design parameter. Ensure the operating temperature range meets the environmental conditions of the final application.

Oscillators Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The '18' prefix typically indicates the 1.8V supply variant. The 'PD' suffix denotes the inclusion of a power-down capability. These oscillators are commonly used in consumer electronics and industrial control systems where size and power consumption are key considerations.

Oscillators Replacement Considerations

Direct replacements must match the 16.182539 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle. Cross-reference with other manufacturers offering similar SMD oscillators if Mercury Electronics parts are unavailable.