S2020L

Overview

The Littelfuse S2020L is a standard recovery silicon controlled rectifier (SCR) rated for 20 A average on-state current and 200 V repetitive peak reverse voltage. It utilizes an electrically isolated TO-220 package with an isolated tab, supporting a temperature rating of +150°C. The device functions as a half-wave, unidirectional, gate-controlled rectifier within the Teccor brand thyristor series.

Feature Summary

• Electrically isolated package design for enhanced safety
• Standard phase control triggering characteristics
• High thermal stability with +150°C rating

Applications

• Phase control applications
• Heating systems
• Motor speed controls

Procurement Notes

Verify component status carefully as the S2020L is listed as obsolete in major distributor catalogs. Confirm availability through authorized Littelfuse channels or approved secondary markets. Ensure replacement strategies account for end-of-life status to prevent supply chain disruptions during production runs.

Selection Notes

Select this component for low-power phase control circuits requiring electrical isolation between the gate and the main terminal. The 20A current rating suits moderate power heating and motor control loads. Verify that the 200V voltage rating aligns with the specific circuit requirements before integration into the design.

Part Context

This part belongs to the Teccor Sxx20x series of 20 Amp standard SCRs. It complements other variants in the family by providing a specific combination of 200V blocking capability and 20A continuous current handling in a robust, isolated TO-220 form factor suitable for industrial and consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available due to the obsolete status of the S2020L. Designers should consult Littelfuse technical support for direct replacements or evaluate alternative series within the Teccor portfolio that offer similar electrical specifications and package types.