7B12000199

Crystals Overview

The 7B12000199 is a quartz crystal resonator manufactured by TXC Corporation, designed for surface-mount technology applications. It operates at a nominal frequency of 12 MHz with a load capacitance of 18 pF and a frequency tolerance of ±30 ppm. The component features an equivalent series resistance (ESR) of 40 Ohms and is housed in a 5 mm x 3.2 mm SMD package. It supports a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in various electronic environments.

Crystals Feature Summary

• Provides precise timing signals via quartz resonance
• Designed for surface-mount integration on PCBs
• Operates within extended industrial temperature ranges

Crystals Applications

• Microcontroller clock sources
• Embedded system timing circuits
• Digital communication interfaces

Crystals Procurement Notes

This component is officially classified as End-of-Life (EOL) by the manufacturer. Distribution channels indicate restricted availability or discontinuation. Buyers must verify current stock status through authorized distributors and consider immediate substitution strategies due to potential supply chain limitations and lack of future production commitments.

Crystals Selection Notes

Engineers should evaluate the 18 pF load capacitance requirement against their circuit design to ensure frequency accuracy. The ±30 ppm tolerance may be insufficient for high-precision applications requiring tighter stability. Verify that the 5x3.2 mm footprint matches the target PCB layout and confirm thermal compatibility with the intended operating environment before finalizing the design.

Crystals Part Context

The 7B12000199 belongs to the TXC 7B series of surface-mount crystals. This series is characterized by glass-sealed packages offering robust environmental protection. The specific model provides standard timing capabilities for general-purpose digital electronics, serving as a foundational component for clock generation in consumer and industrial devices prior to its obsolescence.

Crystals Replacement Considerations

The 7M-12.000MAHJ-T is identified as a similar substitute part number available from TXC Corporation. Engineers should compare electrical parameters such as ESR, load capacitance, and frequency tolerance to ensure functional equivalence in the existing circuit design.