SXT2249BA07-16.000M

Crystals Overview

The SXT2249BA07-16.000M is a 16 MHz AT-cut fundamental frequency crystal oscillator manufactured by Suntsu Electronics, Inc. It features a 4-SMD, no-lead package with dimensions of 2.5mm x 2.0mm. The component operates within an industrial temperature range of -40°C to +85°C. Key electrical specifications include a load capacitance of 9 pF and a maximum equivalent series resistance (ESR) of 100 Ohms. Frequency tolerance is ±30 ppm, with optional stability grades available up to ±50 ppm. The device supports a drive level of up to 100 μW and offers high insulation resistance for reliable performance in compact wireless applications.

Crystals Feature Summary

• Four-pad surface-mount design provides grounding shielding to reduce electromagnetic interference in high-frequency circuits
• AT-cut fundamental resonance ensures simple oscillation circuit requirements without additional matching inductors
• Industrial-grade thermal stability maintains frequency accuracy across the full -40°C to +85°C operating range

Crystals Applications

• Bluetooth Low Energy (BLE) modules and short-range wireless devices
• PCMCIA cards and modem interfaces
• High-density industrial control systems
• Wearable electronic devices requiring small form factors

Crystals Procurement Notes

Verify the specific suffix codes against the official datasheet to confirm exact tolerance and temperature grade requirements. Ensure that the 9 pF load capacitance matches the host microcontroller's internal or external capacitor configuration. Confirm that the PCB layout accommodates the 4-pad no-lead package geometry correctly to maintain signal integrity and mechanical reliability during assembly processes.

Crystals Selection Notes

Select this component when space constraints require a 2.5x2.0mm footprint combined with industrial temperature resilience. The 4-pad structure is preferred over 2-pin variants for superior EMI suppression in 2.4 GHz communication bands. Consider the ±30 ppm tolerance as sufficient for most BLE applications, while higher precision models may be needed for stricter synchronization protocols.

Crystals Part Context

This model belongs to the SXT224 series of ceramic surface-mount crystals designed for RF-intensive environments. The series utilizes a 4-pad configuration to enhance shielding capabilities compared to standard 2-pin crystals. It targets applications where miniaturization and signal purity are critical, such as IoT sensors and portable communication hardware.

Crystals Replacement Considerations

Direct substitutes include other SXT224 series variants with different frequencies or tolerances, such as SXT2249BA07-24.000M. Cross-reference pinout compatibility and load capacitance values before swapping to ensure circuit stability without redesigning the oscillator network.