18QHTF21-20.1541-OE

Oscillators Overview

The 18QHTF21-20.1541-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 20.1541 MHz with an LVCMOS output interface. The device supports a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. The unit offers a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable control pin
• Compact 4-SMD no-lead surface mount package
• Wide industrial temperature operation capability

Oscillators Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with low power constraints
• Industrial control modules
• Communication equipment baseband processing

Oscillators Procurement Notes

Verify the specific ordering suffix '-OE' against the manufacturer's current datasheet to confirm active status and exact pinout configuration. Ensure the 1.8V supply rail matches the target circuit design before procurement. Confirm that the 4-SMD no-lead package footprint aligns with the PCB layout specifications to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a low-profile surface mount oscillator is required for space-constrained designs. The 1.8V supply voltage makes it suitable for modern low-power digital circuits. Consider the ±50ppm stability requirement against system timing tolerances. The enable/disable feature allows for power management strategies in battery-operated devices where standby current reduction is critical.

Oscillators Part Context

This part belongs to the QHT series of quartz crystal oscillators from Mercury Electronics. The series is characterized by small form factors and low power consumption. Mercury Electronic Industrial Co., Ltd. is a established manufacturer specializing in frequency control products including crystals and oscillators. This specific model represents a standard XO variant optimized for general-purpose digital applications.

Oscillators Replacement Considerations

Direct substitutes include other 20.1541 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pin compatibility and envelope dimensions for any cross-referenced parts. Check if alternative manufacturers offer equivalent frequency stability and temperature ranges.