on November 5th 23

BD136 Transistor: Pinout, Applications, and Specifications

The BD136 transistor is celebrated for its versatility, excelling in tasks like switching and audio amplification. This guide embarks on a thorough expedition into its various applications, detailed specifications, and alternative components that one might consider. Our aim extends beyond merely conveying factual information, we strive to deepen comprehension by providing enriched explorations and case studies that motivate practical involvement and ignite curiosity.

Catalog

What is the BD136?

The BD136, a PNP transistor, is primarily crafted for switching operations and signal amplification endeavors. It adeptly handles continuous currents reaching -1.5A with a tolerance for voltages up to -45V. Its attributes make it beneficial for audio circuits and other applications requiring precise manipulation of signals. Encased in a TO-126 package, the design focuses on effective thermal management, enabling sustained optimal performance even under operational pressures. This transistor features three terminals, emitter, collector, and base. Each with its distinct function. Notably, it supports up to 2A pulse current when paired with a suitable heatsink. This ability to manage pulse currents highlights the significance of thermal management in enhancing its longevity and reliability, urging the establishment of an adequate setup to counter potential damage during increased electrical demands.

In practical use, the BD136 is regularly implemented in audio amplification circuits, where its properties are harnessed to improve audio fidelity by ensuring clear and consistent signal enhancement. Many shared by electronics and reveal that the transistor’s robustness in handling considerable electrical loads plays a role in its effective application across various circuits. Designing circuits with BD136 requires attention to the accurate execution of terminal applications. Neglecting these aspects may cause ineffective operation or damage. The intricate designs in audio circuitry gain substantial advantages from using components like the BD136, addressing challenges such as signal distortion and power management.

BD136 Pin Configuration

BD136 Symbol, Footprint, and CAD Model

Features of the BD136

Transistor Type

The BD136 transistor stands as a PNP type, serving a role in both amplification and switching activities. It finds its strength in circuits demanding accurate current control, such as those involving audio amplification. Engaging its PNP attributes, this component is often paired with other transistor forms, enhancing the audio by delivering low noise operations.

Power Dissipation

Delivering a power dissipation capacity of 12.5 watts, the BD136 is equipped to handle moderate power ranges effectively. This ability affords it a place in numerous electronic undertakings. In practical terms, applying heat sinks becomes a common practice to successfully mitigate thermal output during extended use, assuring stable performance over time.

Collector Current Handling

Capable of accommodating a maximum collector current of –5A, the BD136 proves effective in scenarios requiring substantial current throughput. When operating in settings like motor circuits, its ability to drive higher currents is valued.

DC Current Gain (hfe)

Its broad DC current gain spectrum provides a strategic advantage in tailoring amplification to precise levels in circuit configurations. Circuit capitalize on this by carefully setting bias conditions to achieve optimal gains, ensuring peak performance while maintaining circuit stability.

Voltage Ratings

The specified voltage thresholds underscore the transistor’s resilience amidst voltage fluctuations for sustained operations. In power supply circuit designs, ensuring operational voltages remain within these set limits prevents breakdowns, securing reliable functionality in a variety of environments.

Maximum Transition Frequency

Reaching transition frequencies as high as 190 MHz, the BD136 is tailored for high-frequency applications. This feature finds value in RF scenarios, where efficiency and responsiveness are imperative. Others leverage this in radio frequency transmitters to achieve quick transition speeds, enhancing overall signal processing capabilities.

Operating Temperature Range

The BD136's expansive temperature operational range underlines its competence to withstand stringent conditions. This adaptability extends from industrial applications to household devices, denoting its broad applicability. Others emphasizes that incorporating careful thermal regulation methods, like cooling systems, can bolster its reliability under challenging conditions.

High Current Gain

Demonstrating a typical current gain of 80 at a collector current of 10mA, the BD136 efficiently performs moderate current amplification tasks. This quality marks it as an asset in small signal applications, optimizing power while ensuring signal clarity. Practical insights often highlight efficiency improvements via precise gain adjustments, maximizing circuit efficacy without superfluous power use.

BD136 Technical Specifications

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 8 months ago)
Contact Plating	Tin
Mounting Type	Through Hole
Number of Pins	3
Collector-Emitter Breakdown Voltage	45V
hFE Min	25
Packaging	Tube
Part Status	Active
Number of Terminations	3
Max Power Dissipation	1.25W
Element Configuration	Single
Case Connection	ISOLATED
Polarity/Channel Type	PNP
Collector Emitter Voltage (VCEO)	45V
Factory Lead Time	8 Weeks
Mount	Through Hole
Package / Case	TO-225AA, TO-126-3
Transistor Element Material	SILICON
Number of Elements	1
Operating Temperature	150°C TJ
JESD-609 Code	e3
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN Code	EAR99
Base Part Number	BD136
Power Dissipation	1.25W
Transistor Application	AMPLIFIER
Transistor Type	PNP
Max Collector Current	1.5A
DC Current Gain (hFE) Min	40 @ 2V 150MA
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA
Max Breakdown Voltage	45V
Emitter Base Voltage (VEBO)	5V
Length	7.8mm
REACH SVHC	No SVHC
RoHS Status	ROHS3 Compliant
Current - Collector Cutoff (Max)	100nA ICBO
Transition Frequency	75MHz
Collector Base Voltage (VCBO)	45V
Height	10.8mm
Width	2.7mm
Radiation Hardening	No
Lead Free	Lead Free

BD136 Operational Mechanism

The BD136 is a PNP transistor great in controlling current flow. Initially, without base current, the emitter and collector are forward-biased, facilitating current passage. Upon applying a base current, this biasing reverses, halting current flow. This alternating capacity is greatly appreciated in complex tasks related to dynamic current management within electronic frameworks. The BD136's ability to direct current offers diverse applications. Those adept in electronics utilize this component for intricacies such as signal amplification and device switching in reaction to input variations. Skillfully adjusting the base current allows for regulation of power, proving beneficial in creating circuits with precise energy management requirements.

Delving into the BD136’s functionality reveals its dependence on semiconductor traits. These transistors serve as gates for current, and their effectiveness is intimately tied to the underlying semiconductor substance. Studying semiconductor science illuminates how atomic design and doping influence the transistor’s behavior, affecting the delicacy and potency of current regulation. The BD136’s dependability hinges on its thermal resistance and switching velocity. Reports suggest that ensuring substantial thermal management and adhering to prescribed operational conditions can prolong and enhance the transistor's efficacy. The BD136 transistor captures the delicate harmony between theoretical models and practical use. Comprehending its operation encompasses not only acknowledging its current-modulating capabilities but also valuing the subtleties inherent in semiconductor technology.

Applications of the BD136

Motor Control and Darlington Pair Formation

The BD136 transistor finds its place in motor control settings, leveraging its medium power handling capabilities to manage motor operation smoothly. It gains importance in crafting Darlington pairs, a method that boosts current gain. This refined ability to drive current is beneficial for gadgets that transform feeble signal inputs into stronger outputs.

Engaging in Audio Amplification

In audio amplification, the BD136 becomes a valuable asset by providing crisp sound reproduction while preserving signal clarity over varying frequencies. Its application in top-notch audio systems showcases its adeptness in harmonizing input and output harmonics, fostering a well-balanced listening pleasure.

Serving as a Load Driver

Deploying the BD136 as a load driver facilitates adept handling of high-power loads with minimal input requirements. This trait is frequently utilized in industrial automation to allow precise power delivery adjustments, ensuring devices function optimally.

Facilitating Impedance Buffering and Current Mirroring

The BD136 plays a role in impedance buffering, preventing detrimental interactions between input and output circuits, promoting a smooth exchange among components. Its skill in current mirroring maintains consistent current replication, a feature in analog circuit layouts ensuring uniformity across parallel outputs.

Enhancing Various Amplifier Stages

Offering versatility, the BD136 augments multiple amplifier stages, ranging from initial input stages to the final output phases. It bolsters signal strength and integrity, particularly within multi-stage amplifiers, where each segment must uphold quality to yield superior performance.

Implementing H-Bridge and Comparator Circuits

When used in H-Bridge setups, the BD136 aids motor control and direction alteration effectively. Its role in comparator circuits is use for precise threshold detection and swift switching, contributing to digital logic processes.

Collaborating with Oscillators and Astables

The BD136's interface with oscillators is instrumental in producing stable timing signals for synchronized operations. Its involvement in astable multivibrators results in continuous pulse generation for clock signal creation and modulation activities.

Energizing Signal Amplification and Power Supply Functions

In the arena of signal amplification, the BD136 transforms weak inputs into formidable outputs necessary for subsequent processing stages. Its proficiency in power supply regulation is great for delivering stable voltage and current, upholding system dependability and performance across various uses.

Alternative of the BD136

Part Number	Manufacturer	Description
BD136G	ON Semiconductor	1.5 A, 45 V PNP Bipolar Power Transistor, TO-225, 500-BLKBX
BD136S	Fairchild Semiconductor Corporation	Power Bipolar Transistor, 1.5A (IC), 45V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin
BD136-BP	Micro Commercial Components	Power Bipolar Transistor, 1.5A (IC), 45V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin, PLASTIC PACKAGE-3
BD1366STU	Fairchild Semiconductor Corporation	Power Bipolar Transistor, 1.5A (IC), 45V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin

BD136 Packaging

BD136 Manufacturer Information

At the forefront of semiconductor innovations, STMicroelectronics plays an influential role in the expansion of electronic technologies, with its System-on-Chip (SoC) solutions. Their focus is to push the boundaries of what is possible in semiconductor development, reflecting a passion for integration and enhancement of modern electronics. The evolution of SoC technologies has dramatically enhanced the ability to incorporate numerous functions onto a single chip, simplifying product designs and broadening their capabilities Across diverse sectors like consumer electronics, automotive, and telecommunications, SoC technologies manifest their versatility. Innovation within semiconductor technology pulses at the core of STMicroelectronics' ethos. A company culture rich in creative foresight has borne breakthroughs that redefine benchmarks. Industry connoisseurs frequently hint at the creative drive as great for staying abreast of the tech sector's rapid shifts.

Datasheet PDF

BD136G Datasheets:

BD136,138,140.pdf

onsemi REACH.pdf

onsemi RoHS.pdf

Assembly Change 28/Dec/2020.pdf