QTT216-26.000MDG-T

Overview

The QTT216-26.000MDG-T is a temperature-compensated crystal oscillator (TCXO) manufactured by QST, operating at a nominal frequency of 26 MHz. It features a clipped sine wave output and supports dual supply voltages of 1.8V and 3.3V. The device utilizes a seam-sealed ceramic package with a 4-SMD, no-lead footprint measuring 2.0mm x 1.6mm. Frequency stability is specified at ±500ppb within an operating temperature range of -30°C to +85°C.

Feature Summary

• Temperature compensation for enhanced frequency stability across defined thermal ranges
• Dual voltage operation supporting both 1.8V and 3.3V power supplies
• Low electromagnetic interference design with clipped sine wave output format
• Compact surface-mount construction using seam-sealed ceramic packaging

Applications

• Precision timing references in mobile communication devices
• Clock generation for high-speed data processing circuits
• Synchronization modules in industrial control systems
• Timing sources for consumer electronics requiring stable frequency

Procurement Notes

Verify the specific suffix requirements against official QST documentation to ensure correct output waveform and voltage compatibility. Confirm that the selected variant matches the required operating temperature range and frequency stability specifications for the target application environment. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a compact TCXO with low phase noise and dual-voltage capability is required. Ensure the system design accommodates the 2.0x1.6mm SMD footprint and provides appropriate power regulation for either 1.8V or 3.3V operation. Validate that the ±500ppb stability meets the strict timing requirements of the host circuitry.

Part Context

This model belongs to the QTT216 series of miniature oscillators from QST. The series is characterized by its small form factor and use of seam-sealed ceramic technology to protect the internal quartz resonator. These oscillators are designed to replace larger through-hole or standard SMD packages in space-constrained modern electronic designs.

Replacement Considerations

Compatible substitutes include other 2.0x1.6mm TCXOs with similar clipping sine outputs and dual voltage support. Verify pinout compatibility and thermal characteristics before substitution. Models such as those from TXC Corporation may offer functional equivalents but require electrical parameter validation.