7M-40.000MAHK-T

Crystals Overview

The 7M-40.000MAHK-T is a surface-mount quartz crystal manufactured by TXC Corporation, operating at a fundamental frequency of 40 MHz. It features a load capacitance of 20 pF and a frequency tolerance of ±30 ppm at 25°C, with stability maintained within ±30 ppm across the industrial temperature range of -40°C to +85°C. The component utilizes a 4-SMD, no-lead package measuring 3.2 mm in length, 2.5 mm in width, and 0.7 mm in height. Designed for base mode operation, it supports a maximum drive level of 50 µW and exhibits an equivalent series resistance (ESR) of 80 Ohms. The unit weighs approximately 16 mg and complies with RoHS3 standards.

Crystals Feature Summary

• Provides stable frequency generation at 40 MHz with ±30 ppm tolerance across the full industrial temperature range.
• Utilizes a compact 3.2 mm x 2.5 mm SMD footprint suitable for space-constrained circuit board layouts.
• Operates in fundamental base mode with low power consumption capabilities up to 50 µW drive level.

Crystals Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing references for communication interfaces such as UART and SPI
• Frequency control in consumer electronic devices requiring precise timekeeping

Crystals Procurement Notes

Verify that the specific suffix HK-T matches the required load capacitance of 20 pF and physical dimensions. Confirm RoHS3 compliance status through official manufacturer documentation prior to integration. Ensure storage conditions adhere to moisture sensitivity level 1 guidelines to prevent package degradation during assembly processes.

Crystals Selection Notes

Select this component when a 40 MHz reference is required with ±30 ppm stability over extended temperature ranges. Compare ESR values against oscillator input requirements to ensure proper circuit startup. Evaluate package height constraints to verify compatibility with automated pick-and-place equipment and final product enclosure clearances.

Crystals Part Context

This part belongs to the 7M series of high-frequency quartz crystals from TXC Corporation. The series offers various frequency options in standardized SMD packages. The 7M-40.000MAHK-T specifically addresses applications needing reliable timing at 40 MHz with moderate stability requirements in industrial environments.

Crystals Replacement Considerations

The 7M-40.000MAHE-T serves as a verified substitute within the same manufacturer lineup, offering identical electrical characteristics and package dimensions. Cross-reference load capacitance and ESR specifications before substitution to ensure circuit compatibility.