8J-40.000METV-T

Crystals Overview

The TXC Corporation 8J-40.000METV-T is a 40 MHz quartz crystal resonator designed for surface-mount applications. It features a compact 1.2 mm x 1.0 mm seam seal package with four ceramic pads. The component operates within a temperature range of -30°C to +85°C, maintaining a frequency stability of ±10 ppm across this range and at 25°C. It utilizes an 8 pF load capacitance and exhibits an equivalent series resistance (ESR) of 80 Ohms. The device supports a maximum drive level of 10 uW, ensuring reliable performance in miniaturized electronic circuits requiring high-frequency precision.

Crystals Feature Summary

• Seam seal construction with ceramic pad termination for robust surface-mount integration
• High frequency stability of ±10 ppm maintained across the specified operating temperature range
• Miniaturized 1.2x1.0 mm footprint optimized for space-constrained portable designs

Crystals Applications

• Smartphone connectivity modules
• Wearable device timing circuits
• Miniaturized high-frequency signal processing

Crystals Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may vary slightly between distributors. Confirm that the 80 Ohm ESR specification aligns with your oscillator circuit design requirements. Ensure compatibility with standard SMD reflow profiles suitable for seam seal packages. Cross-reference the part number with official TXC catalogs to confirm current production status and availability constraints.

Crystals Selection Notes

Select this component when a 40 MHz reference is required in extremely limited board space. The 1.2x1.0 mm size is significantly smaller than standard 2.5x2.0 mm crystals. Verify that the target application can support the 80 Ohm ESR value without excessive loading. This part is suitable for consumer electronics where miniaturization is critical but moderate stability is acceptable.

Crystals Part Context

This part belongs to the TXC 8J series of miniaturized quartz crystals. It shares the same electrical specifications as the 8Z-40.000METV-T but differs in physical dimensions. While the 8Z series uses a 2.5x2.0 mm package, the 8J series reduces the footprint to 1.2x1.0 mm. Both share identical frequency, tolerance, and load capacitance characteristics, allowing for functional interchangeability if mechanical clearance permits.

Crystals Replacement Considerations

The 8Z-40.000METV-T serves as a direct functional substitute with identical electrical parameters. However, it requires a larger 2.5x2.0 mm PCB footprint. No other direct pin-compatible replacements are documented in public sources.