7B-13.560MBBK-T

Crystals Overview

The TXC Corporation 7B-13.560MBBK-T is a discontinued surface-mount quartz crystal resonator operating at a fundamental frequency of 13.56 MHz. It features a standard load capacitance of 20 pF and maintains a frequency stability of ±50 ppm across the commercial temperature range of -20°C to +70°C. The component utilizes a 4-SMD, no-lead package with dimensions of 5.00 mm x 3.20 mm. Designed for base harmonic operation, it supports applications requiring stable timing references in compact electronic assemblies.

Crystals Feature Summary

• Surface-mount design utilizing a 4-SMD no-lead package for automated assembly compatibility
• Fundamental mode operation optimized for 13.56 MHz RFID and NFC communication standards
• Commercial grade thermal performance ensuring stability within -20°C to +70°C operational limits

Crystals Applications

• Radio Frequency Identification (RFID) systems
• Near Field Communication (NFC) devices
• Wireless communication modules
• Portable consumer electronics

Crystals Procurement Notes

This component is officially classified as obsolete by the manufacturer. Procurement must rely on secondary market distributors or surplus inventory channels. Verify part authenticity and storage history carefully, as long-term availability is not guaranteed. Engineering teams should initiate immediate design transitions to active replacement parts to mitigate supply chain risks associated with end-of-life components.

Crystals Selection Notes

Designers selecting this specific variant must account for its 20 pF load capacitance requirement, which differs from the more common 18 pF standard found in other 7B series variants like the 7B-13.560MAAJ-T. Circuit board layout must accommodate the 5.00 mm x 3.20 mm footprint. Due to the discontinued status, alternative sourcing strategies or redesigns incorporating active equivalents are necessary for new production runs.

Crystals Part Context

The 7B series represents TXC Corporation's line of small-sized, high-stability quartz crystals designed for space-constrained applications. This specific model targets the 13.56 MHz band, a critical frequency for contactless smart card and identification technologies. The series emphasizes low profile and reliable performance for mass-produced consumer goods.

Crystals Replacement Considerations

The 7M-13.560MAAJ-T is documented as a similar substitute part number available from TXC Corporation.