445I23J12M00000

Crystals Overview

The CTS-Frequency Controls model 445I23J12M00000 is a surface-mount quartz crystal resonator operating at a fundamental frequency of 12 MHz. It features a standard frequency tolerance of ±20 ppm and a stability of ±30 ppm over the specified temperature range. The component is designed for a load capacitance of 9 pF with an equivalent series resistance (ESR) of 50 Ohms. It operates within an industrial temperature range from -40°C to +85°C. The physical package dimensions are 5.00 mm in length, 3.20 mm in width, and 1.35 mm in height, utilizing a 2-SMD, no-lead configuration.

Crystals Feature Summary

• Utilizes glass-sealed construction for enhanced environmental durability and long-term reliability.
• Complies with RoHS directives, ensuring lead-free termination finishes and exemption compliance for lead in glass materials.
• Supports automated surface-mount assembly processes through standardized tape and reel packaging options.

Crystals Applications

• Bluetooth interface circuits
• USB peripheral connections
• Automotive electronics systems

Crystals Procurement Notes

Verify the specific load capacitance requirement against the target circuit design, as this unit requires 9 pF. Confirm that the operating environment remains within the -40°C to +85°C range to maintain the stated ±30 ppm stability. Ensure the PCB footprint matches the 5.00 mm x 3.20 mm SMD package dimensions to prevent mechanical installation errors during assembly.

Crystals Selection Notes

Select this component when a 12 MHz reference signal is required with ±20 ppm initial accuracy. Choose this part over wider temperature variants if the application strictly demands operation down to -40°C. Consider the 9 pF load capacitance constraint; if the circuit requires different loading, select a variant with a different suffix code to ensure proper oscillator startup and frequency accuracy.

Crystals Part Context

This part belongs to the CTS Model 445 series of low-cost commercial crystals. The series offers various temperature ranges and tolerances, with the 'I' suffix denoting the -40°C to +85°C industrial grade. The 'J' suffix specifically indicates the 9 pF load capacitance parameter, distinguishing it from other variants like 'C' (16 pF) or 'D' (18 pF).

Crystals Replacement Considerations

Direct substitutes within the same manufacturer family include 445I23A12M00000 (10 pF), 445I23B12M00000 (13 pF), and 445I23C12M00000 (16 pF). These parts share identical electrical characteristics except for the load capacitance value. Verify circuit compatibility before swapping between these variants due to the differing capacitive loading requirements.