7V-38.400MDDE-T

Crystals Overview

The 7V-38.400MDDE-T is a MHz quartz crystal resonator manufactured by TXC Corporation, designed for surface-mount applications. It operates at a nominal frequency of 38.4 MHz with a frequency stability of ±20 ppm. The component features an equivalent series resistance (ESR) of 60 Ohms and requires a load capacitance of 8 pF. It utilizes a glass seal construction within a 3.2 mm x 2.5 mm 4-SMD package. The device supports fundamental oscillation mode and functions reliably across a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Glass-sealed ceramic construction for enhanced environmental durability
• Low profile surface-mount design suitable for compact PCB layouts
• Fundamental mode operation ensuring stable frequency generation

Crystals Applications

• General purpose clock signal generation in consumer electronics
• Timing reference for microcontroller systems
• Communication interface synchronization circuits

Crystals Procurement Notes

Verify the specific frequency tolerance requirement of ±20 ppm against system specifications, as this variant differs from other 7V series models offering ±30 ppm stability. Confirm that the 60 Ohm ESR value aligns with the oscillator circuit design constraints. Ensure the 8 pF load capacitance matches the host device's input requirements to maintain accurate frequency performance. Check RoHS compliance status if required by project regulations.

Crystals Selection Notes

Select this part when a precise ±20 ppm frequency stability is critical for the application, distinguishing it from standard ±30 ppm variants. The glass seal technology offers superior protection compared to epoxy-sealed alternatives in harsh environments. Consider the 3.2x2.5mm footprint compatibility during layout planning. Evaluate the 60 Ohm ESR to ensure it does not exceed the driving strength limits of the target oscillator IC.

Crystals Part Context

This component belongs to the 7V series of MHz quartz crystals from TXC Corporation, which are characterized by their small form factor and glass-seal construction. The series provides reliable timing solutions for space-constrained electronic designs. The 7V-38.400MDDE-T specifically targets applications requiring higher frequency accuracy than the standard ±30 ppm options available in the same package family.

Crystals Replacement Considerations

Direct substitutes include the 7M-38.400MAHV-T and 7V-38.400MAHV-T, though these typically offer ±30 ppm stability rather than the ±20 ppm found in the MDDE-T variant. Verify that the alternative parts meet the stricter stability requirements of the original design before substitution.