on November 9th 68

TIP2955 Transistor: Pinout, Equivalents, and Datasheet

The TIP2955 is a powerful and reliable PNP transistor used in many types of electronic circuits. It plays a role in devices that include semiconductors, capacitors, resistors, and integrated circuits. In this article, we’ll explore the TIP2955’s main features, how it works, and why it's so useful in boosting the performance of different electronic systems.

Catalog

What is the TIP2955?

The TIP2955 is a silicon epitaxial-base PNP transistor housed in a TO-218 package. Its robust design offers a versatile solution across multiple high-power applications, seamlessly fitting into power-switching circuits, regulation systems, and audio amplification settings. In power-switching circuits, the TIP2955 excels by efficiently handling current loads in settings with ever-changing demands where steady power regulation supports system efficacy. The TIP2955 serves an important function in regulation systems, adept at preserving steady output as input conditions fluctuate. Its strength in withstanding thermal variations provides dependable control in voltage or current regulators, contributing to systems that endure the test of time and operational pressures. The capacity of the TIP2955 to enhance audio amplification circuits is shown in its delivery of sound with high fidelity, skillfully minimizing signal distortion.

TIP2955 Pin Configuration

Pin Number	Pin Type	Description
3	Emitter	The emitter is for an outward flow of current.
1	Base	The base manages the biasing of the transistor and controls the transistor's state.
2	Collector	The collector allows for the inward movement of current and is connected to the load.

TIP2955 Symbol, Footprint, and CAD Model

Features of TIP2955

Low Collector-Emitter Saturation Voltage

The TIP2955 is characterized by its notably low collector-emitter saturation voltage. This property enhances the device's versatility, opening doors to efficient circuit designs.

Complementary Pairing with NPN Transistors

Its ability to pair seamlessly with NPN transistors is a highlight, paving the way for integration into dual-transistor circuits.

Applications in Circuitry

These aspects make the TIP2955 a suitable choice for audio amplifiers and power supply circuits. In such applications, achieving precise current flow control becomes a pursuit worth undertaking.

Balanced Performance and Reliability

By using complementary transistors in high-power settings, one can achieve a sense of harmony in performance, reducing issues that arise with mismatched pairs.

Transistor Dynamics

Its adaptation within complex circuits highlights the essence of understanding diverse transistor characteristics and their interplay. This knowledge can be the key to unlocking the full potential in intricate system designs.

Applications of the TIP2955

General-Purpose Circuits

The TIP2955, a multifunctional transistor, operates with exceptional proficiency across a spectrum of general-purpose electronic circuits. Its enduring nature is advantageous in demanding settings where consistent performance over time is favored. In practical situations, its ability to manage high-current loads renders the TIP2955 an asset in promoting circuit stability and efficiency.

Role in Audio Amplifier Systems

High-fidelity audio systems frequently utilize the TIP2955 to achieve signal amplification with accuracy and subtle distortion. The transistor's skill in managing substantial power levels while preserving signal clarity appeals to audiophiles. During the design of speaker systems, optimizing TIP2955 usage can enhance sound quality, resulting in a seamless listening encounter.

Enhancing System Reliability

Beyond its amplification role, the TIP2955 contributes to enhancing system reliability. Its thermal resilience and overheating protections extend device lifespan, thereby decreasing the need for frequent maintenance. In wide-ranging applications, these characteristics are especially valued in systems facing fluctuating power conditions, where reliability during stress is a standard expectation.

Design Considerations for TIP2955

To fully benefit from the TIP2955's capabilities, design considerations require substantial attention. These approaches are guided by iterative improvements from previous projects, where navigating electrical limits and managing heat led to superior circuit optimizations.

Equivalents for TIP2955

• TIP100

• TIP101

• TIP102

• TIP105

• TIP106

• TIP107

• TIP110

• TIP3055

Voltage Regulation Using TIP2955 Transistor

Utilizing three parallel TIP2955 transistors enhances output current. This deliberate configuration improves both current handling and thermal load distribution, extending system efficiency and durability. Those well-versed in this domain often emphasize the importance of proper heat sinking and adequate spacing between transistors to reduce thermal interference and boost overall performance. Achieving a steady voltage output involves pairing the TIP2955 with a 7812 voltage regulator. The 7812 excels in maintaining consistent voltage amidst varying input scenarios, which reduces risks from voltage spikes. Such reliability is use in managing energy in fluctuating environments. Capacitors contribute to a smooth circuit output by minimizing voltage ripple and transient responses, maintaining a stable power supply to devices. Fuses introduce an important layer of protection against excessive current that could threaten circuit components. Choosing the correct fuse rating requires thoughtful analysis, ensuring it surpasses the maximum load current just enough to safeguard without causing undue disruptions.

TIP2955 Technical Specifications

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 7 months ago)
Mount	Through Hole
Package / Case	TO-247-3
Weight	9.071847g
Collector-Emitter Breakdown Voltage	60V
hFE Min	20
Packaging	Tube
Part Status	Active
Number of Terminations	3
Terminal Finish	Tin (Sn)
Max Power Dissipation	90W
Frequency	3MHz
Pin Count	3
Power Dissipation	90W
Factory Lead Time	8 Weeks
Mounting Type	Through Hole
Number of Pins	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
Voltage - Rated DC	-100V
Current Rating	-15A
Base Part Number	TIP2955
Element Configuration	Single
Transistor Application	SWITCHING
Gain Bandwidth Product	3MHz
Transistor Type	PNP
Max Collector Current	15A
Current - Collector Cutoff (Max)	700μA
Vce Saturation (Max) @ Ib, Ic	3V @ 3.3A, 10A
Collector Base Voltage (VCBO)	100V
VCEsat-Max	3 V
Length	15.75mm
REACH SVHC	No SVHC
RoHS Status	ROHS3 Compliant
Polarity/Channel Type	PNP
Collector Emitter Voltage (VCEO)	60V
DC Current Gain (hFE) (Min) @ Ic, Vce	20 @ 4A 4V
JEDEC-95 Code	TO-247AD
Transition Frequency	3MHz
Emitter Base Voltage (VEBO)	7V
Height	20.15mm
Width	5.15mm
Radiation Hardening	No
Lead Free	Lead Free

TIP2955 Transistor Package

TIP2955 Manufacturer Information

STMicroelectronics, an influential entity of semiconductor solutions, takes on the production of the TIP2955. With a wealth of expertise in microelectronics, the company drives forward-thinking advancements that fuel technological evolution. The company focuses on consistently refining and updating their practices to align with industry norms and upcoming trends. Balancing the intricate dynamics between innovation and practicality demands anticipation of market inclinations, a strategy that distinguishes leading companies. In the development of the TIP2955, STMicroelectronics fuses technical with strategic foresight, crafting a product that satisfies contemporary demands while being attuned to future possibilities.

Datasheet PDF

TIP2955 Datasheets:

TIP2955, TIP3055.pdf

Mult Dev Adv Material Notice 8/Apr/2019.pdf

IPG-PWR/14/8674 02/Sep/2014.pdf