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Product Detailed Parameters
- Description：TRANS NPN 80V 6A TO-220-3
- Series：-
- Mfr：onsemi
- Package：Bulk,Bulk
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：6:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 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：65 W
- Frequency - Transition：-
- Operating Temperature：150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220-3
- Grade：-
- Qualification：-
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Overview
The BD243B is an NPN epitaxial silicon power transistor housed in a TO-220 package. It supports a maximum collector current of 6 A and a collector-emitter voltage of 80 V. The device provides a minimum DC current gain of 15 at 3 A and 30 at 0.3 A. It features a collector dissipation rating of 65 W at 25°C case temperature, with a junction temperature range from -65°C to +150°C.
Feature Summary
- Designed for medium power linear and switching applications
- Complements the BD244B PNP transistor
Applications
- Medium power linear circuits
- Switching applications
Procurement Notes
Verify the specific manufacturer source, as Fairchild Semiconductor was acquired by onsemi. Confirm that the component meets RoHS compliance requirements if applicable to your project specifications. Ensure the TO-220 package dimensions align with your thermal management and PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when an NPN power transistor with an 80 V collector-emitter breakdown voltage is required. It is suitable for designs needing up to 6 A continuous collector current. Consider the complementary BD244B for push-pull configurations requiring matched PNP performance characteristics.
Part Context
This part belongs to the BD243/A/B/C series of NPN power transistors. The suffix 'B' specifically denotes an 80 V collector-emitter voltage rating, distinguishing it from the 45 V (BD243) and 60 V (BD243A) variants within the same family.
Replacement Considerations
The BD244B serves as the direct complementary PNP replacement or pairing component. Other general-purpose NPN power transistors with similar 80 V ratings and TO-220 packages may be considered if electrical parameters are verified against the datasheet.
FAQ
What is the collector-emitter sustaining voltage for the BD243B?
The collector-emitter sustaining voltage (VCEO(sus)) is 80 V when measured at IC=30mA and IB=0.
What is the maximum collector current for this transistor?
The maximum DC collector current (IC) is rated at 6 A.
Is the BD243B compatible with the BD244B?
Yes, the BD243B is designed as the complementary NPN transistor to the BD244B PNP type.
