TM2561B-L

Overview

The TM2561B-L is a silicon gate-controlled triac manufactured by Sanken Electric USA Inc. It is housed in a TO-3PF through-hole package and rated for a continuous on-state current of 25 A. The device features a repetitive peak reverse voltage of 600 V, making it suitable for high-power AC switching applications. Key electrical characteristics include a maximum RMS on-state current of 25 A and a non-repetitive peak surge on-state current capability designed to withstand transient loads. The component utilizes glass passivation for junction stability.

Feature Summary

• Silicon gate-controlled triac structure for reliable AC switching
• Glass passivated junctions ensuring parameter uniformity and stability
• TO-3PF package design providing low thermal resistance and high heat dissipation

Applications

• Full-wave AC control systems
• Industrial heater controls
• Motor control circuits
• Power supply units requiring solid-state switching

Procurement Notes

Verify the specific ordering suffix and manufacturing date code upon request, as availability may vary due to production status. Confirm that the TO-3PF pinout matches the target PCB layout requirements. Ensure that the 600 V rating aligns with the peak inverse voltage present in the application circuit to prevent device failure. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Selection Notes

Select this component when a 25 A RMS current capacity and 600 V blocking voltage are required in a TO-3PF form factor. Consider the thermal management capabilities of the package relative to the expected ambient temperature and heat sink configuration. Evaluate the four-mode gate triggering guarantee if the driving circuitry varies in polarity or impedance. Compare surge current ratings against potential inrush currents in the load to ensure adequate safety margins.

Part Context

The TM2561B-L belongs to the family of power triacs produced by Sanken Electric, designed for robust industrial and consumer applications. It shares structural similarities with other 25 A triacs in the series, such as the TM2541B-L, but differs in voltage ratings and specific packaging configurations. These devices are engineered for white goods and general industrial power control, emphasizing durability and consistent performance under high-current conditions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with equivalent 25 A, 600 V TRIACs from other manufacturers only after confirming identical pinout, thermal resistance, and triggering characteristics.