2SA1746

Single Bipolar Transistors Overview

The 2SA1746 is a Silicon PNP Epitaxial Planar Transistor manufactured by Sanken Electric USA Inc. It features a maximum collector current of -12 A and a collector-emitter voltage rating of -50 V. The device supports a maximum power dissipation of 60 W at 25°C case temperature, with a junction temperature range from -55°C to +150°C. Key electrical characteristics include a minimum DC current gain (hFE) of 50 and a typical transition frequency (fT) of 25 MHz. The transistor is housed in the FM100 (TO-3PF) package.

Single Bipolar Transistors Feature Summary

• Designed for chopper regulator, switching, and general-purpose applications
• Capable of handling high collector currents up to 12 A
• Features low saturation voltage characteristics

Single Bipolar Transistors Applications

• Chopper Regulator circuits
• Power Switching applications
• General Purpose transistor usage

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer source when sourcing this component, as multiple entities may list the part number. Confirm that the received unit matches the FM100 (TO-3PF) physical dimensions and pinout configuration provided in the official datasheet. Ensure the device meets the required absolute maximum ratings for your specific thermal environment.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring robust PNP switching capabilities with high current handling. Consider the thermal management requirements carefully, as the 60 W power dissipation rating is specified at a case temperature of 25°C. Evaluate the safe operating area curves to ensure operation remains within limits during transient pulses.

Single Bipolar Transistors Part Context

This component belongs to the category of Silicon PNP Epitaxial Planar Transistors. It is engineered for power electronics where reliable switching and moderate voltage blocking are necessary. The TO-3PF package provides a metal tab for efficient heat transfer to heatsinks, distinguishing it from smaller signal transistor packages.

Single Bipolar Transistors Replacement Considerations

Cross-reference with other PNP transistors offering similar -50 V VCEO and >10 A IC ratings. Verify pin compatibility and thermal resistance values before substitution.

Single Bipolar Transistors FAQ

What is the maximum collector current rating?

The maximum DC collector current is rated at -12 A.

What package type does the 2SA1746 use?

It utilizes the FM100 package, which corresponds to the TO-3PF form factor.

What is the minimum DC current gain?

The minimum DC current gain (hFE) is specified as 50 under test conditions of VCE=-1V and IC=-25mA.