NX2016AB-38.4MHZ ST4

Overview

The NX2016AB-38.4MHZ ST4 is a surface-mount AT-cut quartz crystal resonator manufactured by NDK, designed for compact wireless applications. It operates at a nominal frequency of 38.4 MHz with a standard load capacitance of 8 pF and an equivalent series resistance (ESR) maximum of 60 Ohms. The device utilizes fundamental mode oscillation within a 2.0 x 1.6 mm SMD package. It supports base frequency output without requiring overtone suppression circuits.

Feature Summary

• Compact 2016 surface-mount package optimized for space-constrained PCB layouts
• Fundamental mode operation eliminates the need for overtone suppression circuitry
• Integrated design suitable for Bluetooth and short-range wireless communication systems

Applications

• Bluetooth low energy (BLE) modules
• Short-range wireless LAN devices
• IoT sensor nodes
• Wearable electronic devices

Procurement Notes

Verify the specific suffix 'ST4' against the manufacturer's current datasheet to confirm exact tolerance and temperature range specifications. Ensure ordering documentation matches the required load capacitance and ESR limits for the target application circuit. Confirm RoHS compliance status if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when board real estate is limited and a 38.4 MHz reference clock is required for wireless protocols. Ensure the host oscillator circuit can drive the specified 60 Ohm ESR limit reliably. Verify that the 8 pF load capacitance aligns with the microcontroller or transceiver input requirements to maintain frequency accuracy.

Part Context

This part belongs to the NX2016AB series, which targets high-volume consumer electronics and mobile devices. The series emphasizes miniaturization while maintaining stability for digital communication interfaces. It serves as a direct replacement for larger 3225 or 5032 packages where footprint reduction is critical.

Replacement Considerations

Direct substitutes include other 2016 package crystals from manufacturers like Epson or Murata operating at 38.4 MHz. Verify pin compatibility and electrical parameters before swapping. Custom variants such as NX2016SA may offer different temperature ranges.