BD159STU

$0.75

Description：TRANS NPN 350V 0.5A TO-126-3
Series：-

SKU:30b94001ca40 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 350V 0.5A TO-126-3
Series：-
Mfr：onsemi
Package：Tube,Tube
Transistor Type：NPN
Current - Collector (Ic) (Max)：500 mA
Voltage - Collector Emitter Breakdown (Max)：350 V
Vce Saturation (Max) @ Ib, Ic：-
Current - Collector Cutoff (Max)：100µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 50mA, 10V
Power - Max：20 W
Frequency - Transition：-
Operating Temperature：-
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：TO-126-3
Grade：-
Qualification：-

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BD159STU

Overview

The BD159STU is a PNP epitaxial silicon bipolar junction transistor manufactured by onsemi. It is housed in a TO-126-3 through-hole package designed for robust power handling. The device supports a maximum collector current of 0.5 A and withstands a collector-emitter voltage of 350 V. Key electrical specifications include a collector-base voltage of 350 V, an emitter-base voltage of 5 V, and a power dissipation rating of 20 W. The component operates within a temperature range of -65°C to +150°C.

Feature Summary

High voltage capability with 350 V breakdown ratings
Robust thermal management via TO-126-3 package
Suitable for medium-power switching applications

Applications

General-purpose high-voltage switching circuits
Power supply output stages
Motor control driver interfaces

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with onsemi or authorized distributors before procurement. Confirm that the TO-126-3 lead form factor matches your PCB footprint requirements. Ensure thermal design accounts for the 20 W dissipation limit under actual operating conditions. Check for any obsolescence notices or lifecycle changes associated with this part number.

Selection Notes

Select this component when a PNP transistor with high voltage tolerance is required. The 350 V rating distinguishes it from lower-voltage alternatives like the BD140 series. Consider the 0.5 A current limit for load requirements. The TO-126 package offers better heat dissipation than smaller surface-mount options but requires through-hole mounting space.

Part Context

This part belongs to the general-purpose BJT family from onsemi. It complements NPN variants such as the BD158STU within the same voltage and current class. The BD159STU provides a reliable solution for discrete power switching tasks where high voltage isolation is critical compared to standard low-voltage logic transistors.