NPN SILICON TRANSISTORS

These epitaxial planar transistors are mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits.

The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.

Key Features

  • Products are pre-selected in DC current gain

Design

Technical Documentation

Product Specifications
Description Version Size
DS1150 DS1150: Complementary low voltage transistor 5.2 152 KB
Technical Notes & Articles
Description Version Size
TN0025 TN0025: LED balancing circuit with power limit 2.3 89 KB
TN0026 TN0026: LED balancing circuits 2.4 113 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
BD139 PSpice model 1.0 949 bytes




Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
BD139-16 SOT-32 Tube Active 0.133 1000 NEC EAR99 INDIA MORE INFO DISTRIBUTOR AVAILABILITY
BD139-10 SOT-32 Tube Active 0.133 1000 NEC EAR99 INDIA MORE INFO DISTRIBUTOR AVAILABILITY
BD139 SOT-32 Tube Active 0.131 1000 NEC EAR99 INDIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
BD139-16 ActiveSOT-32IndustrialEcopack1 0 0
BD139-10 ActiveSOT-32IndustrialEcopack1 0 0
BD139 ActiveSOT-32IndustrialEcopack1 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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