
- Transistors
- What is a transistor
- Darlington Pair transistor configuration and features
- Most Commonly Used Transistors
- Different Types of Transistors
- One Coin Newsletter
- Working of Transistor as a Switch
- C828 transistor Pinout, Equivalent, uses, working
- C945 Transistor Pinout, feature, Equivalent
- IRF740 N-Channel Power Mosfet Features, Application
- C1815 Transistor Pinout, Equivalent, Uses, Features
- IRF3205 MOSFET Pinout, Its Features and Application
- 2SA1015 Transistor, Pinout, Features ,alternate
- BC547 Transistor Pinout, Features, uses, working
- BC108 Transistor Pinout, Equivalent
- BC548 Transistor Pinout, Equivalent, Uses
- BC549 Transistor Pinout, Features
- BC550 Transistor pinout features
- BC556 Transistor Pinout, Equivalent
- BC557 Transistor Pinout, Equivalent, Features Features Specifications
- BC558 Transistor Pinout, Equivalent
- BC559 General Purpose PNP Transistor
- BC560 Pinout, Equivalent features
- BC847W Transistor pinout, equivalent
- TIP120 Transistor Pinout, Equivalent and Features
- TIP122 Transistor Pinout, Equivalent, Uses, Features
- TIP127 Transistor Pinout, equivalent & Features
- KSA1220 Transistor pinout, Features and other detail
- KSA992 Transistor Pinout, Features and uses
- TIP32C Transistor pinout Features and Applications
- 2N3904 Transistor Pinout, Features and applications
- 2N3906 Pinout, Features, Equivalent uses
- BD139 Transistor Pinout, Features, Alternate
- BD140 Transistor Pinout, Equivalent
- 2N2222A Transistor: Pin Configuration
- Transistor 2N2907 Pinout Features
- 2N7000 N-Channel MOSFET
- 2N7002 N-channel Logic Level MOSFET
- 2SA1943 Transistor Pinout, Features
- MJE13009 Transistor Pinout, Features
C945 Transistor Pinout, feature, Equivalent
C945 transistor is a general-purpose NPN transistor that is widely used in a variety of commercial and educational electronic circuits. It comes in a TO-92 package, this transistor can drive a max load of around 150mA which is enough to operate many devices in a circuit for LEDs, Relays, ICs, transistors, and other parts of electronics circuits. The saturation of this transistor is only 0.3V DC which is also a good feature of this transistor. Moreover, the transistor is also a low-noise device and has a good DC current gain that is 70 to 700. C945 Transistor Pinout explains all features of the transistor.
C945 transistor pinout
Pin Number | Pin Name | Description of Pins |
1 | Emitter | Current flows out |
2 | Collector | Current flow through |
3 | Base | terminal triggers the transistor |
Features of C945 Transistor
- Type of Package: TO-92
- Type: NPN
- Collector Max Current(IC): 150mA
- Collector-Emitter max Voltage (VCE): 50V
- Collector-Base Max Voltage (VCB): 60V
- Emitter-Base Max Voltage (VEBO): 5V
- Collector Max Dissipation (Pc): 400 milliwatt
- Transition Max Frequency (ft): 200 MHz
- Min & Max DC Current Gain (hFE): 70 – 700
- Max Storage and Operating temperature Should Be: -55 to +150 Centigrade
Alternate Of C945 Transistor
It can be replaced with 2N2222, 2N3904, 2SC1815, and 2SC3198 nowadays BC547 is a good alternative to this transistor. The pin configuration of Some transistors is different from C945 so check the pin configuration before replacing the circuits.
PNP Complementary of this Transistor
NPN Complementary of C945 is A733, BC557,Bc558 and BC556B.
SMD Version of C945 transistor
The SMD version of C945 transistor are 2SC4738 (SOT-23), 2SC2712 (SOT-23), 2SC4116 (SOT-323), FJX945 (SOT-323), KTC3875 (SOT-23) and KTC3875S (SOT-23). These transistors are the same type and have similar parameters.
Applications of C945
- It is used in Sensor Circuits
- Use in Audio Preamplifiers
- Use in Audio Amplifier Stages
- Use in Switching Loads under 150mA
- It is also used in Darlington Pairs
- RF Circuits also used C945
Uses of C945 Transistor
This transistor has a good DC current gain and low noise due to this it is suitable to use in audio amplifier circuit stages or for the amplification of other electronic circuits. The saturation voltage of mostly BJT transistors is 0.6V DC but the C945 has only a transistor that has 0.3V saturation voltage due to this feature it can perform well in low voltage circuits or in any circuit where low base voltage is available.
C945 Transistor Functions
The transistor C945 is usually used in circuits where we need a high-speed transistor & a low current. It has three semiconductor regions: emitter, base, and collector. When we apply voltage at the base, the current starts to flow between the collector and emitter. In this way, we control the functionality of the electronic circuit through this high-speed low-current transistor.
C945 Datasheet
C945 CAD Model
The CAD Model or 3D model of the C945 Transistor is given below
C945 vs C1815 vs H945 vs BC547
Detail compare table is given below among the 4 transistors. We can easily determine our requirements as needed and we can use a suitable transistor for our application.
Description
|
C945
|
C1815
|
BC547
|
H945
|
---|---|---|---|---|
Collector to base voltage (VCB) | 60V | 60V | 50V | 60V |
Collector to emitter voltage (VCE) | 50V | 50V | 45V | 50V |
Emitter to base voltage (VEB) | 5V | 5V | 6V | 5V |
Collector current (IC) | 150mA | 150mA | 100mA | 150mA |
Power dissipation | 400mw | 400mw | 500mw | 250mw |
Junction temperature (TJ) | 125°C | 125°C | 150°C | 150°C |
Transition frequency (FT) | 200MHZ | 80MHZ | 300MHZ | 250MHz |
Noise | 10dB | 10dB | 10dB | 4dB |
Gain (hFE) | 40 to 700hFE | 70 to 700hFE | 110 to 800hFE | 90hFE |
Package | TO-92 | TO-92 | TO-92 | TO-92 |
C945 VS 2N2222
The transistor C945 is a general-purpose small signal NPN device, almost similar to 2N2222. The difference is only the maximum continuous current: C945 - 150ma, 2N2222 - 500mA.