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Product Detailed Parameters
- Description：TRANS NPN 80V 8A TO-220-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：8:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 V
- Vce Saturation (Max) @ Ib, Ic：800mV @ 200mA, 2A
- Current - Collector Cutoff (Max)：100µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：40 @ 2A, 2V
- Power - Max：50 W
- Frequency - Transition：12MHz
- 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 BD537K is an NPN silicon power transistor manufactured by onsemi, housed in a TO-220-3 through-hole package. It supports a maximum collector current of 8 A and a collector-emitter voltage of 80 V. The device features a transition frequency of 12 MHz and a maximum power dissipation of 50 W. DC current gain is specified at a minimum of 40 when tested at 2 A and 2 V. Collector-emitter saturation voltage is limited to 800 mV under conditions of 200 mA base current and 2 A collector current.
Feature Summary
- NPN polarity configuration for switching applications
- Flange mount capability via TO-220-3 package
- Collector terminal connected to the case
Applications
- General purpose switching circuits
- Power amplifier stages
- Industrial control systems
Procurement Notes
Verify component authenticity against official datasheets due to discontinued status. Confirm package integrity and pinout alignment with TO-220-3 specifications. Check for lead-free compliance documentation if required by project standards. Ensure storage conditions maintain moisture sensitivity level 1 integrity prior to assembly.
Selection Notes
Select this component for designs requiring high current handling up to 8 A with moderate voltage ratings. Consider thermal management requirements given the 50 W power dissipation limit. Evaluate saturation voltage characteristics for efficiency optimization in low-voltage switching scenarios. Verify compatibility with existing PCB footprints for TO-220-3 mounting.
Part Context
This part belongs to the BD53x series of power transistors from onsemi. The series includes variants such as BD533, BD535, and BD537, differentiated primarily by breakdown voltage and current capabilities. The BD537K specifically targets applications needing robust NPN switching performance in a standard through-hole form factor.
Replacement Considerations
Consult official substitution guides for equivalent parts. Cross-reference electrical parameters including Vceo, Ic, and package type. Verify pinout compatibility before implementation.
