BD243-S

Description：TRANS NPN 45V 6A TO-220
Series：-

SKU:931526a7209d Category: Single Bipolar Transistors Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 45V 6A TO-220
Series：-
Mfr：Bourns Inc.
Package：Tube
Transistor Type：NPN
Current - Collector (Ic) (Max)：6:00 AM
Voltage - Collector Emitter Breakdown (Max)：45 V
Vce Saturation (Max) @ Ib, Ic：1.5V @ 1A, 6A
Current - Collector Cutoff (Max)：700µA
DC Current Gain (hFE) (Min) @ Ic, Vce：15 @ 3A, 4V
Power - Max：2 W
Frequency - Transition：-
Operating Temperature：-65°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220
Grade：-
Qualification：-

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BD243-S

Overview

The BD243-S is an NPN silicon power transistor manufactured by Bourns. It features a maximum collector-emitter voltage of 100V and a continuous collector current of 6A. The device has a maximum power dissipation of 2W and operates within a junction temperature range of -65°C to 150°C. Key electrical parameters include a DC current gain (hFE) minimum of 15 at 3A and 4V, and a collector cutoff current maximum of 700µA. The saturation voltage is specified as 1.5V maximum at 1A and 6A. It is housed in a TO-220 package for through-hole mounting.

Feature Summary

Designed for complementary use with the BD244 series PNP transistors
Suitable for medium power linear and switching applications
Robust construction for industrial and consumer circuit protection

Applications

Linear amplifier circuits
Switching power supplies
Industrial motor control interfaces

Procurement Notes

Verify component authenticity against official Bourns datasheets due to obsolete status. Confirm package integrity and pinout alignment with TO-220 standards. Check for lead-free compliance if required by specific assembly processes. Ensure storage conditions prevent moisture damage prior to soldering. Validate supplier documentation for traceability.

Selection Notes

Select this component when a 100V NPN power transistor with 6A capability is required in a TO-220 package. Consider thermal management requirements given the 2W power dissipation limit. Evaluate compatibility with complementary BD244 devices for push-pull configurations. Assess operating temperature range suitability for the target environment.

Part Context

The BD243 series represents a line of medium-power NPN silicon transistors widely used in general-purpose applications. The BD243-S variant specifically denotes the Bourns manufacturing version. These components are part of a complementary pair system, often paired with BD244 PNP counterparts for balanced performance in audio and power stages.