BD536 STMicroelectronics Transistor BJT PNP (Transistor Outline, Vertical) In Stock
STMicroelectronics BD536 is a PNP bipolar junction transistor rated at 60 V collector-emitter voltage and 8 A continuous collector current in a TO-220AB through-hole package. It delivers a minimum DC current gain of 15 for power switching and audio amplifier applications. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- BD536 Datasheet PDF
- Category
- Transistor BJT PNP
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- PNP power BJT with 60 V VCEO and 8 A collector current capacity for medium-power switching and linear amplification
- Minimum DC current gain (hFE) of 15 at high collector currents ensures reliable base drive from standard logic or MCU outputs
- TO-220AB package with bolt-down tab allows direct heatsink mounting for continuous 8 A operation without thermal runaway
Applications
The BD536 is used in audio power amplifier output stages, DC motor speed controllers, and linear power supply pass elements where a PNP transistor handling up to 8 A at 60 V is required. Its TO-220AB package bolts directly to chassis heatsinks, making it practical in off-road vehicle lighting controllers and industrial relay driver circuits. Complementary pairing with the BD535 NPN device enables push-pull Class AB audio output stages with symmetrical drive characteristics.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| YTEOL | 0 |
| Collector Current-Max (IC) | 8A |
| Collector-Emitter Voltage-Max | 60V |
| Configuration | SINGLE |
| DC Current Gain-Min (hFE) | 15 |
| JEDEC-95 Code | TO-220AB |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Polarity/Channel Type | PNP |
| Power Dissipation Ambient-Max | 50W |
| Power Dissipation-Max (Abs) | 50W |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 12MHz |
| VCEsat-Max | 0.8V |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.29.00.95 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the maximum collector-emitter voltage and continuous collector current ratings for the BD536?
The BD536 is rated for a maximum collector-emitter voltage (VCEO) of 60 V and a continuous collector current (IC) of 8 A. These ratings make it suitable for medium-power PNP applications such as 24 V or 48 V motor drive circuits where the transistor must handle sustained load currents without exceeding its safe operating area.
How does the BD536 perform in a complementary push-pull audio amplifier paired with a suitable NPN transistor?
In a complementary push-pull output stage, the BD536 PNP and a complementary NPN such as BD535 handle the negative and positive half-cycles respectively, each rated at 60 V and 8 A to deliver power into 4-ohm or 8-ohm speaker loads at supply rails of plus-or-minus 30 V. The minimum hFE of 15 keeps base drive current below 540 mA even at full 8 A collector current, which a driver transistor can supply without saturation.
What heatsink is needed to operate BD536 continuously at 8 A collector current in a 25 degree C ambient environment?
The BD536 in TO-220AB has a junction-to-case thermal resistance of approximately 3.1 degrees C per W. At 8 A with a VCE(sat) near 0.5 V, power dissipation reaches about 4 W, requiring a heatsink with thermal resistance below 15 degrees C per W to keep the junction below 150 degrees C. A small 40 mm x 40 mm aluminum heatsink with thermal compound is typically sufficient for continuous 8 A operation.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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