BD233STU

Description：TRANS NPN 45V 2A TO-126-3
Series：-

SKU:2de2fc91690b Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 45V 2A TO-126-3
Series：-
Mfr：onsemi
Package：Tube
Transistor Type：NPN
Current - Collector (Ic) (Max)：2:00 AM
Voltage - Collector Emitter Breakdown (Max)：45 V
Vce Saturation (Max) @ Ib, Ic：600mV @ 100mA, 1A
Current - Collector Cutoff (Max)：100µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：25 @ 1A, 2V
Power - Max：25 W
Frequency - Transition：3MHz
Operating Temperature：150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：TO-126-3
Grade：-
Qualification：-

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BD233STU

Overview

The BD233STU is an NPN bipolar junction transistor manufactured by onsemi, designed for medium-power amplification and switching applications. It utilizes a TO-126 three-pin through-hole package to facilitate thermal dissipation and mechanical stability in high-current circuits. The device supports a maximum collector current of 2A with a collector-emitter voltage rating of 45V. Key electrical characteristics include a collector-base voltage of 45V and an emitter-base voltage of 5V. The component operates within a temperature range extending up to 150°C, ensuring reliability in demanding electronic environments.

Feature Summary

NPN polarity configuration optimized for linear amplification and digital switching tasks
TO-126 through-hole mounting style providing robust thermal management capabilities
High current handling capacity suitable for power supply and motor control loads

Applications

Power supply regulation circuits
Motor driver interfaces
General-purpose switching applications

Procurement Notes

Verify the manufacturer part number BD233STU against official onsemi documentation to ensure authenticity. Confirm that the TO-126-3 package dimensions match design requirements. Check for RoHS compliance status if environmental regulations apply. Ensure the supplier provides traceable origin data for quality assurance purposes before finalizing acquisition.

Selection Notes

Select this component when a through-hole NPN transistor with 2A continuous current capability is required. The 45V breakdown voltage suits low-to-medium voltage DC systems. Consider the TO-126 package for superior heat dissipation compared to surface-mount alternatives in high-power scenarios. Validate thermal resistance parameters against the specific PCB layout constraints.

Part Context

This transistor belongs to the general-purpose BJT category from onsemi, historically associated with Fairchild Semiconductor product lines. It serves as a discrete semiconductor solution for analog and digital power stages. The device complements other NPN transistors in the portfolio by offering a balance between current gain and voltage tolerance in a standard industrial package.