What are the key features of STMicroelectronics BD138?

This product belongs to the Bipolar Transistors - BJT category and ships in standard packaging. It features high reliability, stable performance and low power consumption. Key parameters include wide operating range, low loss, and over-temperature protection, suitable for industrial applications. Manufactured by STMicroelectronics with full traceability.

What are the main application scenarios for BD138?

Typical applications include power management, industrial control. Additionally, it is widely used in automotive electronics, telecom infrastructure, medical devices, and consumer electronics as a critical circuit component, improving system integration and energy efficiency.

This device follows established Bipolar Transistors - BJT design principles. Core functional stages include input handling, signal and power processing, and protection logic, ensuring stable operation under varying conditions. Refer to the datasheet for the detailed characteristics and application guidance.

What is the technical performance of BD138?

Performance highlights: stable characteristics across the operating temperature range, low loss, and long service life. Reliable contact and shock resistance, with protection against over-current and over-voltage where applicable. Meets industrial and automotive reliability standards where the series qualifies.

What is the current market demand for BD138?

The global Bipolar Transistors - BJT market is growing at ~6-8% CAGR, with particularly strong demand in power management. STMicroelectronics BD138 is a mainstream model with stable stock and a typical lead time of 2-4 weeks. Driven by new energy and smart electronics trends, inquiries for this model are steadily increasing, indicating a positive long-term outlook.

What are the technical characteristics of BD138?

Three main technical features: 1) High reliability – stable performance over the rated life; 2) Low-loss design – reduced energy loss in operation; 3) Wide adaptability – compatible with various operating conditions. Additionally, STMicroelectronics provides full technical support and reference designs.

BD138 TRANS PNP 60V 1.5A BIPO TO-252AA by STMicroelectronics

BD138 | STMicroelectronics TRANS PNP 60V 1.5A BIPO TO-252AA

Category: Bipolar Transistors - BJT

Brand: STMicroelectronics

TRANS PNP 60V 1.5A BIPO TO-252AA

Stock: On request

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Product Details

PDF Datasheet

Technical Docs

Description: TRANS PNP 60V 1.5A BIPO TO-252AA

Technical Parameters

Collector Current	1.5 A
Collector Emitter Saturation Voltage	0.5 V max
Configuration	Single
Hfe	hFE 40-250
Mounting Style	Through Hole
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ +150°C
Package Type	TO-126
Polarity	PNP
Power Dissipation	12.5 W
RoHS	Compliant
Temperature Range	-65 to +150 C
Transistor Type	BJT
Transition Frequency	10 MHz typical
Vceo	60 V

Standard Packaging: Standard packaging refers to the minimum packaging quantity obtained from the manufacturer/distributor. Therefore, the minimum order quantity may be less than the manufacturer's standard packaging quantity. When products are broken down into smaller quantities, the packaging type (i.e., reel, tube, tray) may change, subject to actual packaging delivery.

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BD138 Application and Selection Guide

BD138 Model and Manufacturer Information

BD138, a Bipolar Transistors - BJT manufactured by STMicroelectronics: BD138 helps you confirm the specific model, while STMicroelectronics helps you confirm the product source. If you are selecting a part, you can first check whether BD138 meets your requirements, then check whether STMicroelectronics matches your expectations, and then refer to TRANS PNP 60V 1.5A BIPO TO-252AA for further evaluation.

BD138 Product Parameters and Description

The main parameters of STMicroelectronics's Bipolar Transistors - BJT product BD138 include TRANS PNP 60V 1.5A BIPO TO-252AA. This is a Bipolar Transistors - BJT produced by STMicroelectronics, and it also offers good applicability in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices.

BD138 Application and Selection Reference

STMicroelectronics's Bipolar Transistors - BJT product BD138 has a relatively wide range of applications in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices. Overall, BD138 is a Bipolar Transistors - BJT solution worth considering, and manufacturer STMicroelectronics provides long-term supply program support for this product, which helps ensure supply continuity during mass production.

Recommended Part Numbers for BD138

Designers looking for BD138 recommended parts can evaluate the following options. BD138 selection decisions should verify parameters, tolerance and packaging against the original design bill of materials.

Recommended Part	Brand	Description
BC857B	STMicroelectronics	TRANSISTOR PNP -45V -100MA SOT23
2N2907A	STMicroelectronics	单晶体管双极, PNP, 60 V, 600 mA, 400 mW, TO
2N2905A	STMicroelectronics	单晶体管双极, PNP, 60 V, 600 mA, 3 W, TO

EZKEY can provide BD138 recommended part comparison data and engineering samples for evaluation.