BD138 The BD138 is a PNP power transistor in a TO-126 package. It is designed for audio amplifiers and driver circuits.
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BD138

Available from 1 distributors
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The BD138 is a PNP power transistor in a TO-126 package. It is designed for audio amplifiers and driver circuits.
✓ Total Stock: 73 pcs
$ Price Range: $0.99

BD138 Available from 1 distributor

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✓ Non-Authorised
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73 pcs
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BD138 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BD138 Description

Short technical summary and product information.

The BD138 is a silicon epitaxial planar PNP transistor housed in a Jedec SOT-32 plastic package, commonly known as TO-126. This power transistor is specifically designed for applications in audio amplifiers and driver circuits, particularly those utilizing complementary or quasi-complementary configurations.

 

Key electrical specifications include a maximum collector current (Ic) of 1.5 A and a maximum collector-emitter voltage (Vce) of 60 V. The device also has a maximum collector-base voltage (VCB) of 60 V and a maximum emitter-base voltage (VEB) of 5 V. The DC current gain (hFE) typically ranges from 63 to 160. The power dissipation (Pd) is rated at 1.25 W.

 

Its TO-126 package facilitates through-hole mounting, making it suitable for various electronic designs. The BD138 is a versatile component for audio amplification stages and other power driver applications where a PNP transistor is required.

BD138 Quick Information

Product Type: PNP Power Transistor
Canonical Name: BD138 PNP Power Transistor
Subcategory: Bipolar (BJT) - Single, Pre-Biased

BD138 Compliance

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

BD138 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BD138 Features

  • PNP silicon epitaxial planar transistor
  • Designed for audio amplifiers and drivers
  • Maximum collector current: 1.5 A
  • Maximum collector-emitter voltage: 60 V
  • TO-126 package for through-hole mounting

BD138 Applications

  • High-fidelity audio amplifiers
  • Television circuits
  • Complementary amplifier designs
  • Power driver applications

BD138 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector current for the BD138 transistor?

The maximum collector current (Ic) for the BD138 is 1.5 A.

What is the maximum collector-emitter voltage of the BD138?

The BD138 has a maximum collector-emitter voltage (Vce) of 60 V.

What package type is the BD138 transistor supplied in?

The BD138 is supplied in a TO-126 package.

What is the typical DC current gain (hFE) for the BD138?

The typical DC current gain (hFE) for the BD138 ranges from 63 to 160.

What are the primary applications for the BD138 transistor?

The BD138 is designed for audio amplifiers and television circuits.

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