TSM32-H50CQ18ST-125.000M

Oscillators Overview

The TSM32-H50CQ18ST-125.000M is a standard crystal oscillator (XO) manufactured by Transko Electronics, Inc., designed for surface-mount applications. It operates at a nominal frequency of 125 MHz with HCMOS output logic levels. The device requires a 1.8V supply voltage and supports an enable/disable function for power management. Frequency stability is specified at ±50ppm over the operating temperature range of -40°C to +85°C. Maximum supply current is 30mA. The component is housed in a compact 4-SMD, No Lead package, specifically a 4-VDFN (3.2x2.5mm) footprint, suitable for high-density PCB layouts.

Oscillators Feature Summary

• HCMOS output interface providing standard digital signaling compatibility
• Integrated enable/disable functionality for dynamic power control
• Wide industrial operating temperature range ensuring reliability in harsh environments
• Compact surface-mount packaging optimized for space-constrained designs

Oscillators Applications

• Networking equipment clock distribution
• Telecommunications signal processing systems
• Industrial control board timing references

Oscillators Procurement Notes

Verify the specific suffix 'TR' if tape-and-reel packaging is required, as the base part number may denote individual tube packaging. Confirm that the 1.8V supply requirement aligns with the target system's voltage rails. Ensure the ±50ppm stability meets the jitter tolerance of the receiving clock input. Check RoHS compliance status for environmental regulations. Validate the 4-VDFN footprint dimensions against the design layout to prevent soldering issues.

Oscillators Selection Notes

Select this component when a 125 MHz reference is needed with low voltage operation. Consider the ±50ppm stability limit for applications requiring precise timing synchronization. Evaluate the HCMOS output swing against the input threshold of downstream components. Compare the 30mA current draw against total system power budgets. Assess the -40°C to +85°C range against the operational environment extremes.

Oscillators Part Context

This model belongs to the TSM32 series of surface-mount crystal oscillators from Transko Electronics. The series offers various frequencies and voltage options. The H50CQ18ST designation indicates specific performance characteristics including the 1.8V supply and HCMOS output type. This series is engineered for general-purpose timing applications requiring reliable frequency generation in compact form factors.

Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other 125MHz 1.8V HCMOS XO manufacturers only after verifying pinout and electrical parameter equivalence.