STDCIY1-40M

Overview

The STDCIY1-40M is a surface-mount MHz crystal manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a nominal frequency of 40 MHz with a frequency tolerance of ±10ppm and stability of ±25ppm. The component features an 8pF load capacitance and a maximum equivalent series resistance (ESR) of 80 Ohms. Designed for fundamental mode operation, it utilizes a 4-SMD, no lead package measuring 3.20mm x 2.50mm in size with a maximum height of 0.60mm. The device supports a wide operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

Feature Summary

• Compact 4-SMD surface mount package suitable for automated assembly
• High frequency stability with ±10ppm tolerance specification
• Wide operational temperature range supporting industrial environments

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference sources for microcontroller systems
• Oscillator circuits requiring stable high-frequency input

Procurement Notes

Verify the specific suffix codes against official NDK documentation to ensure correct frequency tolerance and packaging configuration. Confirm that the selected variant matches the required load capacitance and ESR limits for the target circuit design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when a compact footprint is required alongside precise timing accuracy. Ensure the circuit design accommodates the specified 8pF load capacitance to maintain frequency integrity. Evaluate the thermal environment to confirm compatibility with the -40°C to +85°C operating range. Compare the ESR specifications against the oscillator driver strength requirements to prevent over-driving or startup failures.

Part Context

This component belongs to NDK's portfolio of quartz crystal devices designed for mobile communications, office automation, and automotive electronics. As part of the broader NX series family, it provides reliable oscillation sources essential for networked society applications. The manufacturing philosophy emphasizes high precision and reliability, contributing to social prosperity through accurate timekeeping solutions.

Replacement Considerations

STDCIX1-40M