TIP31D-S

Single Bipolar Transistors Overview

The TIP31D-S is an obsolete NPN silicon power transistor manufactured by Bourns Inc. It belongs to the single bipolar transistor category and is designed for high-current applications. The component features a maximum collector current of 3 A and a collector-emitter breakdown voltage of 120 V. It is housed in a TO-220 package, which is supplied in tube packaging. As a discrete semiconductor product, it serves as a switching or amplifying element in electronic circuits requiring robust power handling capabilities within these specific electrical limits.

Single Bipolar Transistors Feature Summary

• NPN silicon construction for reliable power switching
• High current capacity suitable for demanding loads
• Robust voltage rating for diverse circuit protection

Single Bipolar Transistors Applications

• General-purpose power switching circuits
• Amplifier stages requiring moderate power output
• Industrial control systems utilizing standard transistor interfaces

Single Bipolar Transistors Procurement Notes

Verify component status carefully before procurement planning. The TIP31D-S is officially listed as obsolete and no longer manufactured by Bourns Inc. Sourcing new original units may be difficult or impossible through primary channels. Ensure that any available inventory represents genuine parts with verified authenticity. Consider lead times for secondary market sources if immediate replacement is not feasible. Confirm compatibility with existing designs before committing to obsolete stock purchases.

Single Bipolar Transistors Selection Notes

Select this component only if the design specifically requires the 120V and 3A ratings provided by the TIP31D-S. Due to its obsolete status, alternative solutions should be evaluated for long-term supply chain stability. Verify that the TO-220 package fits the mechanical constraints of the target application. Check thermal management requirements against the device's specifications. Ensure that the NPN configuration aligns with the circuit topology. Review datasheets for any pinout variations in potential substitute parts.

Single Bipolar Transistors Part Context

The TIP31D-S is part of Bourns Inc.'s broader portfolio of discrete semiconductor products. It falls under the single bipolar transistor classification, specifically within the NPN silicon power transistor segment. This series is intended for applications needing reliable performance at moderate power levels. The component represents a legacy offering from the manufacturer, reflecting historical design standards for power electronics. Its inclusion in the catalog highlights the company's range of electronic components, even those no longer in active production.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation. Users must identify equivalent NPN transistors with matching 120V and 3A ratings. Verify pin compatibility and thermal characteristics when selecting alternatives. Consult manufacturer cross-reference guides for valid replacements.