BU126 The SavantIC Semiconductor BU126 is an NPN Power Transistor designed for voltage regulator, inverter, and switching mode power supply applications. It features a high breakdown voltage and TO-3 package.
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BU126

Available from 1 distributors
Mfr Name: KT
KT
The SavantIC Semiconductor BU126 is an NPN Power Transistor designed for voltage regulator, inverter, and switching mode power supply applications. It features a high breakdown voltage and TO-3 package.
Total Stock: 248 pcs
$ Price Range: $1.87

BU126 Available from 1 distributor

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BU126 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BU126 Description

Short technical summary and product information.

The BU126 from SavantIC Semiconductor is an NPN power transistor housed in a TO-3 package. It is designed for applications requiring high breakdown voltage, such as voltage regulators, inverters, and switching mode power supplies.

 

Key electrical specifications include a collector-base voltage of 750V and a collector-emitter voltage of 300V. The continuous collector current is rated at 3.0A, with a peak current of 6.0A. Power dissipation is 40W at 25°C case temperature. The transistor exhibits a typical DC current gain (hFE) of 15 at 1A and 5V.

 

Thermal characteristics include a junction-to-case thermal resistance of 2.5 K/W. The operating junction temperature is rated up to 125°C, with storage temperatures ranging from -65°C to 125°C.

 

This component is suitable for through-hole mounting and is designed for robust performance in power electronics circuits.

BU126 Quick Information

Product Type: NPN Power Transistor
Canonical Name: BU126 NPN Power Transistor
Subcategory: Special Purpose

BU126 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BU126 Estimated Pricing

Qty Low High
1+ $1.87 $1.87

Estimated market price range - modelled values for guidance only, not live distributor offers.

BU126 Features

  • High breakdown voltage for power applications.
  • Designed for voltage regulators and inverters.
  • TO-3 package for efficient heat dissipation.
  • 3.0A continuous collector current.
  • 10 MHz transition frequency.

BU126 Applications

  • Used in voltage regulator circuits.
  • Suitable for inverter applications.
  • Ideal for switching power supplies.
  • Power electronics designs.

BU126 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-base voltage for the BU126?

The maximum collector-base voltage (VCBO) for the BU126 is 750V when the emitter is open.

What is the maximum collector-emitter voltage of the BU126 transistor?

The maximum collector-emitter voltage (VCEO) for the BU126 is 300V when the base is open.

What is the continuous collector current rating for the BU126?

The continuous collector current (IC) for the BU126 is rated at 3.0A.

What is the power dissipation of the BU126 at 25°C?

The total power dissipation (PT) for the BU126 is 40W at a case temperature of 25°C.

What is the typical DC current gain (hFE) of the BU126?

The typical DC current gain (hFE) for the BU126 is 15 when measured at IC=1A and VCE=5V.

What is the package type for the BU126 transistor?

The BU126 transistor comes in a TO-3 package.

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