18QHTF21-19.1958-OE

Oscillators Overview

The 18QHTF21-19.1958-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.1958 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function via the OE pin. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6mm, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable functionality via OE pin
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Timing and clock signal generation in electronic devices
• Consumer electronics requiring precise frequency references
• Embedded systems utilizing low-voltage CMOS logic

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics to validate electrical characteristics and reliability standards for your specific application environment.

Oscillators Selection Notes

Select this component when a stable 19.1958 MHz reference is required for LVCMOS-compatible circuits. The integrated enable feature allows for power management during idle states. Consider the small 2.0x1.6mm package size for space-constrained designs. Ensure the operating temperature range meets your environmental specifications. Verify that the single-ended output format suits your clock distribution network without requiring additional buffering.

Oscillators Part Context

This part belongs to the 18QHTF21 series of low-voltage CMOS oscillators from Mercury Electronics. The series offers various frequency options within a standardized 4-SMD package. These components are designed for general-purpose timing applications where low power consumption and small form factors are prioritized over ultra-high stability metrics typical of TCXO or OCXO variants.

Oscillators Replacement Considerations

Direct substitutes must match the 19.1958 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Cross-reference with other manufacturers offering identical pinouts and electrical parameters. Verify that any replacement maintains the same enable/disable logic polarity and drive strength to ensure circuit compatibility.