STDCSJ1-8M

Overview

The STDCSJ1-8M is an 8 MHz fundamental mode quartz crystal manufactured by NDK. It features a load capacitance of 8 pF and an equivalent series resistance (ESR) of 220 Ohms. The component utilizes a 2-SMD, no-lead package with dimensions of 3.20mm x 1.50mm and a maximum height of 0.90mm. Frequency tolerance and stability are specified at ±50ppm. It operates within a temperature range of -40°C to +85°C and complies with RoHS standards.

Feature Summary

• Fundamental resonance mode operation for stable frequency generation
• Compact surface-mount design suitable for space-constrained PCB layouts
• Wide industrial operating temperature range ensuring reliability in varied environments

Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic timing references

Procurement Notes

Verify the specific package variant and lead-free status against the official NDK datasheet prior to ordering. Confirm that the 220 Ohm ESR aligns with the oscillator circuit requirements. Ensure the ±50ppm tolerance meets the system's frequency accuracy specifications. Check for any specific handling instructions regarding moisture sensitivity level 1 compliance during assembly.

Selection Notes

Select this component when a compact 3.2x1.5mm footprint is required for 8 MHz applications. The 220 Ohm ESR suits standard CMOS oscillator loads. Consider the ±50ppm tolerance if higher precision is not critical. Compare against NX3215SA series alternatives if lower ESR or different packaging is needed. Validate thermal performance within the -40°C to +85°C range for the target application environment.

Part Context

This part belongs to NDK's SMD crystal lineup, designed for surface-mount technology. It complements other frequency reference components like the NX3225SA series but offers a smaller 2-SMD form factor. The STDCSJ1-8M serves as a cost-effective timing solution for basic digital systems requiring moderate frequency stability.

Replacement Considerations

Direct substitutes may include other 8MHz 2-SMD crystals from NDK or third-party manufacturers with matching 8pF load capacitance and similar ESR values. Verify pin compatibility and mechanical dimensions before substitution.