BCP56 Introduction
The BCP56 is a high-voltage, high-speed NPN bipolar junction transistor (BJT) for use in switching and amplification applications. It features a maximum collector-emitter voltage of 80V and a maximum collector current of 2A, making it suitable for a range of electronic circuits.
BCP56 Pinout
BCP56 CAD Models
Symbol
Footprint
3D Model
BCP56 Circuit Diagram
In a switching circuit, the BCP56 is used to control the flow of current between the collector and emitter based on the input signal applied to the base. When a small base current is applied, it allows a larger current to flow from the collector to the emitter. This configuration is often used to switch on/off high-current loads with a small control signal.
In an amplification circuit, the BCP56 is used to increase the amplitude of an input signal. The transistor operates in its active region, where it amplifies the input signal applied to the base. The output signal is taken from the collector and is proportional to the input signal but with greater amplitude.
Proper biasing of the transistor is essential for its correct operation. For switching applications, the transistor is typically biased to operate in saturation (fully on) or cutoff (fully off) regions. For amplification, it is biased to operate in the active region. Resistors are often used in the base and collector circuits to set the appropriate biasing conditions.
BCP56 Marking Diagram
BCP56 Specification
| Parameter | Specification |
| Type | NPN |
| Max Breakdown Voltage | 80 V |
| Emitter Base Voltage (VEBO) | 5V |
| Collector Current (Ic) | 1.2 A |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 50mA, 500mA |
| Current - Collector Cutoff (Max) | 100nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 40 @ 150mA, 2V |
| Power - Max | 1 W |
| Operating Temperature | -55°C ~ 150°C |
| Package Type | TO-261-4, TO-261AA |
| Mounting Type | Through-hole |
BCP56 Features
High Current: 1.0 A
The SOT−223 package can be soldered using wave or reflow. The formed leads absorb thermal stress during soldering, eliminating the possibility of damage to the die
Available in 12mm Tape and Reel
Use BCP56T1G to Order the 7 inch/1000 Unit Reel
Use BCP56T3G to Order the 13 inch/4000 Unit Reel
PNP Complement is BCP53T1G
S and NSV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
BCP56 Applications
Switching Circuits
Amplifier Circuits
Signal Processing
Relay Drivers
Linear Regulators
Current Regulation
BCP56 Package
BCP56 Manufacturer
The BCP56 transistor is manufactured by onsemi. Onsemi, formerly known as ON Semiconductor, specializes in providing a broad range of advanced semiconductor products that enhance the efficiency and performance of electronic devices. Onsemi’s commitment to innovation and quality ensures that components like the BCP56 meet rigorous industry standards and support diverse applications from consumer electronics to industrial systems.
How to Use BCP56?
The BCP56 transistor, a PNP bipolar junction transistor, is used in various electronic circuits for switching and amplification purposes. When incorporating the BCP56 into a circuit, connect the emitter to the ground or negative voltage rail, the collector to the load or positive voltage rail, and the base to the control signal. Proper biasing of the base-emitter junction is crucial; typically, a small current through the base will control a larger current between the collector and emitter.
In switching applications, apply a sufficient base current to turn the transistor on, allowing current to flow from the collector to the emitter. In amplification circuits, the transistor will amplify signals applied between the base and emitter.
FAQs
What is the BCP56 transistor?
The BCP56 is a PNP bipolar junction transistor used for switching and amplification in various electronic circuits. It features high current and voltage handling capabilities, making it suitable for diverse applications.
How do I connect the BCP56 to a circuit?
Connect the emitter to the ground or negative voltage rail, the collector to the load or positive voltage rail, and the base to the control signal. Ensure proper base current is applied to turn the transistor on.
Can BCP56 be used for high-power applications?
While the BCP56 can handle moderate power levels, it is not designed for high-power applications. For high-power requirements, consider transistors with higher power ratings and thermal management features.
