STDCSJ1-40M

Overview

The STDCSJ1-40M is a surface-mount fundamental mode crystal resonator manufactured by NDK. It operates at a nominal frequency of 40 MHz with an 8 pF load capacitance. The component features a 2-SMD, no-lead package measuring 8.0 mm in length and 4.5 mm in width, with a maximum height of 1.6 mm. It exhibits a frequency tolerance of ±30 ppm and a stability of ±50 ppm across the operating temperature range of -40°C to +85°C. The equivalent series resistance (ESR) is specified at a maximum of 100 Ohms.

Feature Summary

• Fundamental resonance mode operation for stable frequency generation
• Automotive-grade reliability certification compliant with AEC-Q200 standards
• RoHS 3 directive compliance ensuring restricted hazardous substance limits

Applications

• Automotive electronic systems requiring AEC-Q200 certified components
• Industrial control circuits utilizing 40 MHz clock signals
• Communication modules requiring precise timing references

Procurement Notes

Verify that the specific order matches the STDCSJ1-40M designation to ensure correct frequency and package dimensions. Confirm that the application environment falls within the -40°C to +85°C operational range. Ensure circuit design accommodates the 8 pF load capacitance and 100 Ohm ESR specifications. Check for RoHS 3 compliance requirements if applicable to the target market regulations.

Selection Notes

Select this component when a 40 MHz fundamental mode crystal is required in a compact 8.0x4.5 mm footprint. It is suitable for designs needing ±30 ppm tolerance and ±50 ppm stability over a wide industrial temperature range. Consider this part for automotive applications due to its AEC-Q200 qualification. Ensure the PCB layout supports the 2-SMD no-lead package geometry.

Part Context

This crystal belongs to the STD series from NDK, designed for surface-mount assembly. It provides a stable reference frequency for digital circuits. The 40 MHz output is commonly used in microcontrollers and communication interfaces. The component integrates quartz resonator elements within a hermetically sealed metal case to protect against environmental factors.

Replacement Considerations

STDCSJ1-40MTR