on November 8th 75

SS8550 Transistor: Specifications, Alternatives, and Pinout

The SS8550 transistor is a small but powerful piece of electronic hardware. It’s a PNP silicon transistor that can handle high currents up to 1.5 amps, while working well in low-voltage setups. Because it’s so versatile and reliable, the SS8550 shows up in all kinds of electronic projects, from power management systems to audio amplifiers. Its ability to adapt to different needs makes it a popular choice and it plays a role in many modern electronic designs.

Catalog

What is the SS8550 Transistor?

The SS8550 is a PNP transistor often chosen for its adaptability across a range of electronic applications. Known for managing low voltage with a capacity to support high current, it has a collector current maximum of 1.5 A. Such qualities promote its utilization in circuits requiring efficient low-voltage amplification or adept switching operations. The capability of this transistor to handle substantial current at low voltage is highly valuable in power management circuits, audio amplifiers, and signal processing units. Its reliable current management makes it suitable for both analog and digital circuits.

SS8550 Equivalent

• SS9012

• SS9015

SS8550 Pin Configuration

Pin Number	Pin Name	Description
1	Emitter	The emitter pin releases charge carriers. In circuit applications, its correct orientation is good for improving current flow and ensuring the transistor's stability.
2	Base	Acts as the control gate by regulating the flow of charges from the emitter to the collector. Modulating the base current is key for adjusting amplification levels for achieving desired performance in circuit configurations.
3	Collector	The endpoint for collecting charge carriers. Proper connection and alignment are needed to maximize efficiency and minimize energy loss, as misalignments can impact the performance of the circuit.

SS8550 Symbol, Footprint, CAD Model

SS8550 Transistor Features

The SS8550 transistor is renowned for its substantial operational proficiency, most notably as a 2W output amplifier, perfectly suited for portable radios using Class B push-pull configurations. It pairs effortlessly with the SS8050 counterpart, forming a powerful electronic duo that amplifies the performance of compact devices. A thorough examination of its properties highlights a collector-base voltage of 40V and a power dissipation capacity of 1W under thermal conditions.

Its design accommodates a broad temperature range from -55°C to +150°C, allowing it to function reliably across various environments. The SS8550 adheres to RoHS standards, reflecting a dedication to environmentally friendly manufacturing, in line with global sustainability movements. There is a notable interplay between adherence to such standards and preferences, indicating that compliance not only safeguards the environment but also boosts confidence.

SS8550 Technical Specifications

Technical specifications, attributes, and parameters of ON Semiconductor's SS8550, along with parts similar to the SS8550DBU.

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 2 days ago)
Mount	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA)
Weight	179mg
Collector-Emitter Breakdown Voltage	25V
hFE Min	85
Packaging	Bulk
JESD-609 Code	e3
Part Status	Active
Number of Terminations	3
Terminal Finish	Tin (Sn)
Max Power Dissipation	1W
Current Rating	-1.5A
Base Part Number	SS8550
Factory Lead Time	7 Weeks
Mounting Type	Through Hole
Number of Pins	3
Transistor Element Material	SILICON
Number of Elements	1
Operating Temperature	150°C TJ
Published	2017
Pbfree Code	yes
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN Code	EAR99
Voltage - Rated DC	-25V
Terminal Position	BOTTOM
Frequency	200MHz
Element Configuration	Single
Power Dissipation	1W
Gain Bandwidth Product	200MHz
Transistor Application	AMPLIFIER
Polarity/Channel Type	PNP
Collector Emitter Voltage (VCEO)	25V
DC Current Gain (hFE) (Min) @ Ic, Vce	160 @ 100mA 1V
Vce Saturation (Max) @ Ib, Ic	500mV @ 80mA, 800mA
Collector Base Voltage (VCBO)	-40V
Transition Frequency	200MHz
Emitter Base Voltage (VEBO)	-6V
Current - Collector Cutoff (Max)	100nA ICBO
Max Collector Current	1.5A
Radiation Hardening	No
Lead Free	Lead Free
REACH SVHC	No SVHC
RoHS Status	ROHS3 Compliant

Alternatives of SS8550

Part Number	Description	Manufacturer
SS8550DBU	1500mA, 25V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92	Rochester Electronics LLC
SS8550DBU	Through Hole, Collector Emitter Breakdown Voltage 25 V, Max Collector Current 1.5 A, Transition Frequency 200 MHz, Collector Emitter Saturation Voltage -280 mV, hFE Min 85, Max Power Dissipation 1 W	ON Semiconductor
KSB564AOBU	Through Hole, Collector Emitter Breakdown Voltage 25 V, Max Collector Current 1.5 A, Transition Frequency 200 MHz, Collector Emitter Saturation Voltage -280 mV, hFE Min 85, Max Power Dissipation 1 W	ON Semiconductor
SS8550CBU	Through Hole, Collector Emitter Breakdown Voltage 25 V, Max Collector Current 1.5 A, Transition Frequency 200 MHz, Collector Emitter Saturation Voltage -280 mV, hFE Min 85, Max Power Dissipation 1 W	ON Semiconductor
SS8550BBU	Through Hole, Collector Emitter Breakdown Voltage 25 V, Max Collector Current 1 A, Collector Emitter Saturation Voltage -500 mV, hFE Min 70, Max Power Dissipation 800 W	ON Semiconductor

Marking Diagram of SS8550

Applications of SS8550

The SS8550 transistor finds extensive use in both switching and RF (Radio Frequency) applications, showcasing its extraordinary adaptability. This component is valued for its substantial current gain and impressive frequency capabilities, characteristics that enhance its effectiveness in signal amplification and electrical current management across a wide range of electronic systems. Its integration into various devices highlights the importance of choosing components with precise specifications for achieving excellent performance. Particularly in communication devices, its proficiency in handling high frequencies plays a role in sustaining signal integrity and clarity, integral aspects in today's swiftly evolving technological world.

SS8550 Packaging

SS8550 Manufacturer Information

ON Semiconductor stands out by crafting advanced silicon solutions that enhance the operational efficiency of electronic devices across various applications. Focusing on sectors such as automotive, communications, and LED lighting, they blend sophisticated technologies with sustainable practices. As society greatly craves energy-efficient innovations, ON Semiconductor's contributions increasingly address these desires. ON Semiconductor prioritizes the creation of eco-friendly products, drawing on their expansive industry knowledge. Their resolve extends to minimizing environmental impact through cutting-edge manufacturing techniques, reflecting a synergy with worldwide sustainability objectives. This effort shapes a more sustainable pathway in electronics production.

Datasheet PDF

SS8550DBU Datasheets:

SS8550BBU Datasheet.pdf

onsemi REACH.pdf

onsemi RoHS.pdf

Logo 17/Aug/2017.pdf

Copper Lead Frame 12/Oct/2007.pdf

Mult Devices 24/Oct/2017.pdf

Mult Dev 15/Feb/2023.pdf

SS8550CBU Datasheets:

SS8550BBU Datasheet.pdf

onsemi REACH.pdf

onsemi RoHS.pdf

Logo 17/Aug/2017.pdf

Copper Lead Frame 12/Oct/2007.pdf

Mult Devices 24/Oct/2017.pdf

Mult Dev 15/Feb/2023.pdf