QT161S-32.000MDIV-T

Overview

The QT161S-32.000MDIV-T is a surface-mount crystal oscillator manufactured by QST, operating at a fundamental frequency of 32 MHz. It features a frequency tolerance of ±20 ppm within the -20°C to +70°C temperature range. The component utilizes an 8 pF load capacitance and exhibits a maximum series resistance of 80 Ohms. It is housed in a compact 4-SMD, No Lead package suitable for automated assembly processes.

Feature Summary

• Provides stable 32 MHz oscillation with ±20 ppm accuracy over industrial temperatures
• Designed for low impedance applications with 80 Ohms max series resistance
• Compatible with standard 8 pF load capacitance requirements
• Utilizes a leadless SMD form factor for space-constrained PCB layouts

Applications

• Microcontroller clock sources requiring precise timing
• Communication interface circuits such as UART or SPI
• Industrial control systems operating in moderate temperature environments
• Consumer electronics with limited board space

Procurement Notes

Verify that the ordering suffix MDIV correctly corresponds to the ±20 ppm tolerance and -20°C to +70°C temperature range specifications. Confirm the load capacitance requirement matches the system design at 8 pF. Ensure the 4-SMD no-lead package footprint aligns with the PCB layout guidelines provided in the official datasheet to prevent soldering defects during reflow.

Selection Notes

Select this component when a 32 MHz reference is required with strict ±20 ppm stability across the -20°C to +70°C operational window. The 80 Ohms series resistance makes it suitable for driving low-capacitance loads. Consider the 4-SMD no-lead package for high-density designs where traditional leads are impractical. Validate compatibility with the target circuit's load capacitance before finalizing the bill of materials.

Part Context

This part belongs to the QT161S series of surface-mount crystals from QST. The series offers various frequency options and tolerance grades defined by specific alphanumeric suffixes. The QT161S line is engineered for general-purpose timing applications, balancing performance with cost-effectiveness. The specific model integrates standardized electrical parameters for widespread compatibility with common microcontroller architectures.

Replacement Considerations

Direct substitutes include other 32 MHz crystals with ±20 ppm tolerance and 8 pF load capacitance in a 4-SMD no-lead package. Verify equivalent series resistance limits and temperature stability ranges. Cross-reference pinout dimensions and solder pad geometries to ensure mechanical fit without redesigning the footprint.