QTT216-26.000MBG-T

Overview

The QTT216-26.000MBG-T is a temperature-compensated crystal oscillator (TCXO) manufactured by QST, operating at a nominal frequency of 26 MHz. It utilizes a quartz resonator and delivers a clipped sine wave output signal. The device functions with a supply voltage of 3.3 V DC and maintains a frequency stability of ±0.5 ppm across an extended industrial temperature range of -30°C to +85°C. It is housed in a compact 4-SMD, no-lead surface-mount package measuring 2.0 x 1.6 x 0.8 mm.

Feature Summary

• Provides high-frequency stability of ±0.5 ppm over the full industrial temperature range.
• Features a compact 4-SMD no-lead surface-mount footprint for space-constrained designs.
• Generates a clipped sine wave output signal suitable for various digital interfaces.

Applications

• Wireless communication modules requiring precise clocking
• Portable electronic devices with limited board space
• Industrial control systems operating in variable temperatures

Procurement Notes

Verify that the specific part number matches the required 26 MHz frequency and 3.3V supply voltage. Confirm that the clipped sine wave output format aligns with the receiving circuit's input requirements. Ensure the thermal management plan supports operation within the specified -30°C to +85°C range. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a small form factor TCXO is needed for 26 MHz applications. The choice depends on the requirement for ±0.5 ppm stability rather than standard crystal accuracy. Consider the clipped sine wave output compatibility with downstream logic levels. Evaluate the 3.3V supply constraint against the system power architecture.

Part Context

This oscillator belongs to the QTT216 series, which offers miniature surface-mount solutions. The series provides temperature compensation to maintain frequency accuracy under thermal stress. It serves as a precision timing reference where size and stability are critical constraints compared to larger through-hole or standard SMD oscillators.

Replacement Considerations

Direct substitutes include other 26 MHz TCXOs in 2.0x1.6mm packages with similar stability. Verify pinout compatibility and output waveform matching before substitution. Cross-reference with QST family members like QTT216-25.000MBG-T only if frequency adjustment is permissible.