1521H-33.3333K18DTSK

Overview

The 1521H-33.3333K18DTSK is a standard crystal oscillator (XO) manufactured by Suzhou Hangjing Elec & Tech Co., Ltd. It operates at a fixed frequency of 33.3333 MHz and utilizes HCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It includes an enable/disable control feature to manage power consumption. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount technology processes.

Feature Summary

• HCMOS output interface for digital signal compatibility
• Integrated enable and disable control functionality
• Low voltage operation at 1.8V supply

Applications

• Smartphone signal processing circuits
• Tablet computer clock generation
• In-vehicle electronic systems timing
• GPS module reference sources

Procurement Notes

Verify the manufacturer part number against official Suzhou Hangjing documentation to ensure authenticity. Confirm that the specific suffix matches the required voltage and package specifications. Request batch-specific test reports if available. Ensure storage conditions comply with moisture sensitivity levels prior to reflow soldering. Validate pinout alignment with target PCB footprint design.

Selection Notes

Select this component when a precise 33.3333 MHz reference is required for HCMOS-compatible digital circuits. The 1.8V operating voltage makes it suitable for modern low-power portable devices. Consider the 4-SMD no-lead package for automated assembly processes. Evaluate thermal management requirements based on the specific board layout and ambient operating conditions.

Part Context

This oscillator belongs to the 1521H series from Suzhou Hangjing Elec & Tech, a company specializing in quartz frequency control units since 2014. The series targets high-volume consumer electronics and automotive applications. Hangjing emphasizes precision supply chains and rigorous testing to maintain ultra-low failure rates across its product line.

Replacement Considerations

Direct substitutes include other 33.3333 MHz HCMOS oscillators in 4-SMD packages with 1.8V operation. Verify electrical compatibility regarding load capacitance and drive strength. Check mechanical dimensions for exact footprint matching. Ensure equivalent frequency stability and phase noise specifications for the target application.