CL2-40-12

Overview

The CL2-40-12 is a laminated core power transformer manufactured by Signal Transformer, designed for board or chassis mounting applications. It operates at standard 50/60 Hz frequencies and complies with Class 2 safety standards. The unit features a dual primary winding configuration supporting 115 VAC and 230 VAC input voltages. The secondary side provides a single 12 V output capable of delivering a rated current of 3.33 A. With a total power rating of 40 VA, this component serves as a reliable step-down solution for low-voltage AC power distribution in electronic systems requiring isolated power supplies.

Feature Summary

• Dual primary winding design enables compatibility with both 115 VAC and 230 VAC input sources
• Laminated core construction ensures efficient magnetic coupling for 50/60 Hz operation
• Class 2 compliance indicates inherent safety limitations for secondary circuit protection

Applications

• Low voltage AC power supply units
• Industrial control panel transformers
• Electronic equipment requiring isolated 12V AC inputs

Procurement Notes

Verify the specific datasheet version to confirm insulation class and physical dimensions prior to integration. Ensure the mounting style (board or chassis) matches the mechanical design constraints. Confirm that the 40 VA rating meets the peak load requirements of the downstream circuitry without exceeding thermal limits under continuous operation conditions.

Selection Notes

Select this model when a 12 VAC output is required from standard mains voltages. The dual primary winding allows flexibility for international deployment without changing hardware. Consider the 40 VA capacity to ensure sufficient headroom for inrush currents. Verify that the physical footprint accommodates the available space in the enclosure design.

Part Context

This component belongs to the CL2 series of laminated core transformers from Signal Transformer. These units are engineered for general-purpose power transformation in commercial and industrial electronics. The series typically offers robust construction suitable for environments where reliable voltage conversion is critical for system stability and safety compliance.

Replacement Considerations

Direct substitutes must match the 40 VA rating, 12 V secondary output, and dual primary input specifications. Verify pinout compatibility and mounting hole patterns before swapping. Consult manufacturer cross-reference lists for equivalent models from other suppliers offering identical electrical characteristics.