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Product Detailed Parameters
- Description：TRANS NPN 80V 8A TO-220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：8:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 V
- Vce Saturation (Max) @ Ib, Ic：800mV @ 600mA, 6A
- Current - Collector Cutoff (Max)：100µA
- DC Current Gain (hFE) (Min) @ Ic, Vce：15 @ 2A, 2V
- Power - Max：50 W
- Frequency - Transition：-
- Operating Temperature：150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The BD537 is an NPN silicon power transistor manufactured using Planar technology with a Base Island layout. It provides high gain performance and low saturation voltage in a TO-220 package. Key electrical ratings include a collector-emitter voltage of 80 V, a continuous collector current of 8 A, and a total dissipation of 50 W at 25°C case temperature. The device supports a maximum junction temperature of 150°C.
Feature Summary
- Manufactured using Planar technology with a Base Island layout for enhanced performance
- Delivers exceptional high DC current gain coupled with very low saturation voltage
- Designed for medium to high power linear and switching applications
Applications
- Medium power linear amplifier circuits
- High-voltage switching applications
- Audio output stages requiring high gain and low saturation
Procurement Notes
Verify the specific revision level against the latest STMicroelectronics datasheet before finalizing designs. Confirm that the TO-220 package dimensions align with the target PCB footprint. Ensure thermal management solutions account for the 50 W dissipation rating at the specified case temperature. Check for any recent product change notices or end-of-life announcements.
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 an 8 A continuous current capability. Consider the complementary BD536 PNP transistor if a matched pair is needed for push-pull configurations. Evaluate thermal resistance requirements based on the intended operating environment.
Part Context
The BD537 belongs to a family of complementary power transistors alongside the BD533, BD534, BD535, and BD536. These devices share similar manufacturing technologies but differ in voltage ratings. The BD537 specifically offers the highest voltage rating within this group, making it distinct from the lower voltage variants like the BD533.
Replacement Considerations
The BD536 serves as the direct complementary PNP counterpart within the same series. Other general-purpose NPN power transistors with matching 80 V and 8 A ratings may be considered if pin compatibility allows.
