2SA1943OTU

$5.08

Description：TRANS PNP 250V 17A TO-264-3
Series：-

SKU:51b4483226df Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

2SA1943OTU is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is TRANS PNP 250V 17A TO-264-3. Review the specifications below when checking this part for your BOM.

Single Bipolar Transistors specifications for 2SA1943OTU

Description：TRANS PNP 250V 17A TO-264-3
Series：-
Mfr：onsemi
Package：Tube
Transistor Type：PNP
Current - Collector (Ic) (Max)：17 A
Voltage - Collector Emitter Breakdown (Max)：250 V
Vce Saturation (Max) @ Ib, Ic：3V @ 800mA, 8A
Current - Collector Cutoff (Max)：5µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 1A, 5V
Power - Max：150 W
Frequency - Transition：30MHz
Operating Temperature：-50°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-264-3, TO-264AA
Supplier Device Package：TO-264-3
Grade：-
Qualification：-

Single Bipolar Transistors datasheet and documents for 2SA1943OTU

2SA1943OTU

Single Bipolar Transistors Overview

The onsemi 2SA1943OTU is a PNP silicon power transistor housed in a TO-264 (TO-3P) through-hole package. It features a maximum collector current of -17 A and a collector-emitter voltage rating of -250 V. The device supports a maximum power dissipation of 150 W with a minimum DC current gain (hFE) of 55. Operating characteristics include a transition frequency of 30 MHz, an emitter-base voltage limit of -5 V, and a junction temperature range from -50°C to 150°C.

Single Bipolar Transistors Feature Summary

High-voltage capability with a -250 V collector-emitter breakdown rating for robust operation in demanding circuits.
High-current handling capacity rated at -17 A continuous collector current for substantial load driving.
Designed for high-power applications with a 150 W thermal dissipation limit in a flange-mountable TO-264 package.

Single Bipolar Transistors Applications

High-fidelity audio frequency amplifier output stages
General-purpose power switching applications
Industrial motor control circuits

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer designation, as the 2SA1943 series is produced by multiple vendors including Toshiba and onsemi. Confirm that the TO-264 package variant matches the required pinout and mechanical dimensions for the target PCB footprint. Ensure the requested hFE binning meets the circuit's minimum gain requirements before finalizing the order.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with high voltage tolerance and significant current capacity is required. The TO-264 package facilitates effective heat sinking for high-power dissipation scenarios. Compare the -250 V rating against system peak voltages to ensure adequate safety margins. Consider the complementary NPN counterpart if a push-pull output configuration is necessary for the design.

Single Bipolar Transistors Part Context

The 2SA1943 is a legacy high-power PNP transistor originally specified for audio amplifier outputs. While often associated with Toshiba, onsemi manufactures a version in the TO-264 package. This part belongs to a family of complementary transistors designed for high-fidelity audio and general power amplification, offering a balance of voltage rating and current handling for discrete power stages.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify mechanical compatibility and electrical parameters against alternatives such as the 2SC5200 complementary pair contextually, though direct cross-referencing requires official datasheet validation.