CS08231-48M

Overview

The NDK CS08231-48M is a surface-mount MHz crystal operating at a nominal frequency of 48 MHz. It features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 80 Ohms. The component utilizes fundamental oscillation mode and is housed in a compact 4-SMD, No Lead package with dimensions of 1.6mm x 1.2mm. Designed for general-purpose timing applications, it offers standard frequency stability suitable for microcontroller clock sources.

Feature Summary

• Fundamental mode operation ensures stable oscillation without harmonic suppression requirements
• Compact 4-SMD no-lead package design facilitates automated surface-mount assembly
• Low profile construction supports space-constrained portable electronic devices

Applications

• Microcontroller clock sources for IoT devices
• Bluetooth Low Energy (BLE) module timing
• General-purpose digital circuit synchronization

Procurement Notes

Verify the specific ESR value against your oscillator circuit design, as datasheet variations exist between 40 and 80 Ohms. Confirm the exact package dimensions match your PCB footprint, particularly the 1.6x1.2mm form factor. Ensure compatibility with your manufacturing reflow profile and check for RoHS compliance status prior to final procurement approval.

Selection Notes

Select this component when a 48 MHz fundamental crystal is required for low-cost, small-footprint designs. The 7pF load capacitance requires careful matching with external capacitors to achieve target frequency accuracy. Consider the higher ESR if driving capability is limited or if the circuit topology demands lower power consumption during startup phases.

Part Context

This part belongs to the NX1612SA series from NDK, a line of miniature crystals optimized for mobile and wearable electronics. The series emphasizes miniaturization while maintaining reliable performance for wireless communication standards. It serves as a cost-effective alternative to larger packaged crystals in consumer-grade hardware.

Replacement Considerations

NX2016SA-48M-EXS00A-CS05517: Offers lower ESR (≤40Ω) and wider temperature range (-40°C to +125°C). STDCSW2-32M: Different frequency (32MHz) and package size; not a direct functional substitute.