C945 NPN Transistors: Datasheet, Equivalent And Pinout - Utmel

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C945 NPN Transistors: Datasheet, Equivalent and Pinout

Tessie

15 October 2021

63109

C945B

FeiHong

C945B datasheet pdf and Unclassified product details from FeiHong stock available at Utmel

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C945 transistor is a Negative Positive Negative (NPN) bipolar junction transistor. This article enforces datasheet, equivalent, features, pinout, current, and other details about the C945 transistor. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome your RFQ!

Top 2 Electronics Project With BC547, Led & C945 - electronics projects

Catalog

• C945 Pinout
• C945 CAD Model
• C945 Description
• Specifications
• C945 Features
• C945 Transistor Uses
• C945 Complementary
• Alternatives for C945
• C945 Applications
• Where & How to Use C945
• C945 Dimensions
• C945 Manufacturer

C945 Pinout

C945 Pinout

Pin Number	Pin Name	Description
1	Emitter	Current Drains out through emitter, normally connected to ground
2	Collector	Current flows in through collector, normally connected to load
3	Base	Controls the biasing of the transistor, Used to turn ON or OFF the transistor

C945 CAD Model

Footprint

C945 Footprint

C945 Description

The C945 transistor is a general-purpose NPN transistor that can be found in a wide range of commercial and educational electronic circuits. It comes in a TO-93 package, and the maximum load this transistor can drive is roughly 150mA (0.15A), which is sufficient to power several devices in a circuit, such as LEDs, relays, ICs, transistors, and other components. The transistor's saturation value is merely 0.3V, which is another positive attribute of this transistor. In addition, the transistor is a low-noise device with an excellent DC gain of 70 to 700.

Specifications

FeiHong C945B technical specifications, attributes, parameters and parts with similar specifications to FeiHong C945B.

• TypeParameter
• Package / Case

  refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

  TO-92
• Current-Collector (Ic) (Max) 150mA
• Packaging

  Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

  Bag-packed
• Power - Max

  Power - Max is a parameter that specifies the maximum amount of power that an electronic component can handle without being damaged. It is typically measured in watts and indicates the upper limit of power that can be safely supplied to the component. Exceeding the maximum power rating can lead to overheating, malfunction, or permanent damage to the component. It is important to consider the power-max rating when designing circuits or systems to ensure proper operation and longevity of the electronic components.

  400mW
• Voltage - Collector Emitter Breakdown (Max)

  Voltage - Collector Emitter Breakdown (Max) is a parameter that specifies the maximum voltage that can be applied between the collector and emitter terminals of a transistor or other semiconductor device before it breaks down and allows excessive current to flow. This parameter is crucial for ensuring the safe and reliable operation of the component within its specified limits. Exceeding the maximum breakdown voltage can lead to permanent damage or failure of the device. Designers and engineers must carefully consider this parameter when selecting components for their circuits to prevent potential issues and ensure proper functionality.

  52V
• RoHS Status

  RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

  RoHS Compliant

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C945 Features

• Package Type: TO-92

• Transistor Type: NPN

• Max Collector Current(IC): 150mA

• Max Collector-Base Voltage (VCB): 60V

• Max Emitter-Base Voltage (VEBO): 5V

• Max Collector Dissipation (Pc): 400 miliWatt

• Max Collector-Emitter Voltage (VCE): 50V

• Max Transition Frequency (fT): 200 MHz

• Minimum & Maximum DC Current Gain (hFE): 70 – 700

• Max Storage & Operating temperature should be: -55 to +150 Centigrade

C945 Transistor Uses

C945 is commonly used in electrical circuits that require a high-speed transistor with a low current, which is made up of three semiconductor regions: emitter, base, and collector. The base of the C-945 is doped with positive or P-type semiconducting material because it is a bipolar junction transistor.

C945 Current

C945 Complementary

PNP Complementary of C945 is A733, BC557, BC558 and BC556B.

Alternatives for C945

BC546, C1815, KSC945C, 2N2222, 2N3904, 2SC1815, 2SC3198

C945 Applications

• Low current switches

• Pre-amplifiers

• H-bridge circuits for low power motors

• Audio frequency amplifier circuits

• Oscillator circuits

Where & How to Use C945

The C945 transistor has a good DC gain and a low noise type, making it perfect for use in audio preamplifier and amplifier circuit stages, as well as signal amplification in electronic circuits. Most BJT transistors have a saturation voltage of 0.6V, but the C945 has just 0.3V, therefore it can be used in low voltage circuits or in any circuit where the base voltage is low and other BJT transistors are not saturating. It can also be utilized in RF circuits with a frequency of less than 200MHz.

C945 Dimensions

C945 Dimensions

C945 Manufacturer

Feihong Machinery & Electrical Co, Ltd.(Tubemachines) is a leading heater machines factory in China. Our factory is located in Zhaoqing City, Guangdong Province, which is near Guangzhou, Foshan, and Shenzhen.

Share this postFrequently Asked Questions

What is the use of C945 transistor?

A C945 transistor can be used in several types of electronic circuits, but it is best suited for use in low-power applications. Bipolar junction transistors contain three semiconductor regions: the collector, the base, and the emitter.

Can I use C945 instead of 2N2222?

C945 is a general-purpose small signal NPN transistor, pretty much like the 2N2222. The difference is in the max continuous current: C945 - 150ma, 2N2222 - 500mA. But if you switch a couple of mA, say, below 100mA, there is not much difference between them.

How does C945 work?

C945 is usually used in electronic circuits where there is a need for a high-speed transistor and a low current. C-945 has three semiconductor regions named emitter, base, and collector respectively. When we apply voltage at C-945's base, the current starts to flow between collector and emitter.C945B

FeiHong

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