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STMICROELECTRONICS BD911 Power Transistor

The BD911 is a silicon epitaxial-base NPN power transistor in a Jedec TO-220 plastic package, ideal for power linear and switching applications. It features high collector-emitter voltage ratings up to 100 V, collector current up to 15 A, and a maximum junction temperature of 150°C. Designed for reliable performance, it offers a low saturation voltage of 3 V at 10 A, DC current gain up to 250, and a transition frequency of 3 MHz. Suitable for industrial automation, power supply, and amplifiers, this transistor is a robust choice for high-power devices.

Authorized Distributors
Source:Newark
Part No:BD911
Stock:295
Inv Date:06-11-2026
Price: Unit price: $1.59
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Source:DigiKey
Part No:BD911
Stock:2870
Inv Date:06-11-2026
Price: Unit price: $2.38
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Part No:BD911
Stock:2778
Inv Date:06-12-2026
Price: Unit price: $1.54
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Part No:BD911
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1.21
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Part No:BD911
Stock:42
Inv Date:06-11-2026
Price: Unit price: $4.56
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Part No:BD911
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.38
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Source:Arrow EU
Part No:BD911
Stock:108835
Inv Date:06-12-2026
Price: N/A
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Part No:BD911
Stock:8000
Inv Date:06-12-2026
Price: N/A
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STMICROELECTRONICS BD911 Power Transistor Specifications:

  • Collector-Base Voltage: 80-100 V
  • Collector-Emitter Voltage: 80-100 V
  • Emitter-Base Voltage: 5 V
  • Collector Current: 15 A
  • Base Current: 5 A
  • Total Dissipation: 90 W at Tj < 25°C
  • Storage Temperature: -65 to 150°C
  • Max Operating Junction Temperature: 150°C
  • Thermal Resistance Junction-Case: 1.4°C/W
  • Collector Cut-off Current: 500 μA at Vce=40V
  • Collector-Emitter Sustaining Voltage: 80-100 V
  • Collector-Emitter Saturation Voltage: 3 V at 10A, 2.5 V at 5A
  • Base-Emitter Saturation Voltage: 1.5 V at 5A, 2.5 V at 10A
  • DC Current Gain: 40 to 250
  • Transition Frequency: 3 MHz
  • Mechanical Dimensions: Length varies, typical approx. 16.4 mm with other size parameters listed in datasheet

Buy the Buy STMicroelectronics BD911 Part Number BD911 Online

Enhance your power management systems with the STMicroelectronics BD911 power transistor, crafted for industrial applications. Featuring high collector-emitter voltage up to 100V, current capacity of 15A, and thermal stability, this transistor ensures reliable operation in power linear and switching circuits. Its robust physical construction, low saturation voltage, and high DC current gain make it an ideal component for power supplies, automation, and amplifier projects. Purchase online today to benefit from superior performance, quick delivery, and cost-effective solutions for your high-power device needs.

Buy STMicroelectronics BD911 now and experience reliable power switching and amplification performance for industrial and electronic applications.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS BD911?

You can click on the BUY or RFQ button to purchase BD911 from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part BD911?

You can download the BD911 datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of BD911?

STMICROELECTRONICS

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