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STMICROELECTRONICS STN851 Power Transistor

The low voltage fast-switching NPN power transistor is manufactured using planar technology with a 'Base Island' layout, offering high gain and very low saturation voltage. Suitable for emergency lighting, voltage regulators, relay drivers, and low voltage switching applications, this transistor features very low collector to emitter saturation voltage, high current gain, and rapid switching speed. Encased in SOT-223 packaging with tape and reel, it ensures high efficiency in compact electronic designs, providing reliable performance under high current and voltage conditions.

Authorized Distributors
Source:Newark
Part No:STN851
Stock:16630
Inv Date:06-11-2026
Price: Unit price: $1.01
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Source:DigiKey
Part No:STN851
Stock:3689
Inv Date:06-11-2026
Price: Unit price: $1.43
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Part No:STN851
Stock:4006
Inv Date:06-12-2026
Price: Unit price: $1.43
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Part No:STN851
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.47
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Part No:STN851
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.295
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Source:Arrow EU
Part No:STN851
Stock:17000
Inv Date:06-12-2026
Price: N/A
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Part No:STN851
Stock:6000
Inv Date:06-12-2026
Price: N/A
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STMICROELECTRONICS STN851 Power Transistor Specifications:

  • Package: SOT-223
  • Collector-Base Voltage: 150 V
  • Collector-Emitter Voltage: 60 V
  • Emitter-Base Voltage: 7 V
  • Collector Current: 5 A
  • Peak Collector Current: 10 A
  • Base Current: 1 A
  • Peak Base Current: 2 A
  • Total Dissipation: 16 W
  • Storage Temperature: -65 to 150 °C
  • Max. Junction Temperature: 150 °C
  • Thermal Resistance Junction-Ambient: 78 °C/W
  • Transition Frequency: 130 MHz
  • Collector-Base Capacitance: 50 pF
  • Turn-On Time: 50 ns
  • Storage Time: 1.35 μs
  • Fall Time: 120 ns
  • Max Operating Temperature: 150 °C

Buy the Buy STMicroelectronics Low Voltage Fast Switching NPN Power Transistor Part Number STN851 Online

Purchase the STMicroelectronics STN851 power transistor online today for high efficiency switching in low voltage circuits. Designed with planar technology and 'Base Island' layout, it delivers exceptional high gain and very low saturation voltage, ideal for emergency lighting, voltage regulators, relay drivers, and other switching applications. Encased in durable SOT-223 packaging, the transistor ensures reliable operation under high current and voltage conditions. Order now to enhance your electronic designs with this compact, high-performance power device that guarantees rapid switching speeds and stable operation in demanding environments.

Order your STMicroelectronics STN851 high-speed NPN transistor today and ensure your low voltage switching applications perform reliably with fast switching and high gain.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS STN851?

You can click on the BUY or RFQ button to purchase STN851 from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part STN851?

You can download the STN851 datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of STN851?

STMICROELECTRONICS

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