Overview
The BDX34C is a PNP Epitaxial-Base Darlington power transistor manufactured by STMicroelectronics. It is designed for use in power linear and switching applications. This transistor is part of the BDX34 series, which includes complementary types to the NPN BDX33 series. The BDX34C is packaged in a TO-220 plastic case, making it suitable for a variety of power management and control circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | 100 | V |
| Collector-Emitter Voltage (VCEO) | 100 | V |
| Collector Current (IC) | 10 | A |
| Collector Peak Current (ICM) | 15 | A |
| Base Current (IB) | 0.25 | A |
| Total Dissipation at Tc ≤ 25°C (Ptot) | 70 | W |
| Maximum Operating Junction Temperature (Tj) | 150 | °C |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Thermal Resistance Junction-case (Rthj-case) | 1.78 | °C/W |
| DC Current Gain (hFE) | 750 | |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 2.5 | V |
| Base-Emitter On Voltage (VBE(on)) | 2.5 | V |
| Parallel Diode Forward Voltage (VF) | 4 | V |
Key Features
- High DC Current Gain: The BDX34C has a high DC current gain (hFE) of 750, making it suitable for applications requiring high current amplification.
- Low Collector-Emitter Saturation Voltage: The transistor features a low VCE(sat) of 2.5 V, which reduces power losses in switching applications.
- Monolithic Construction: The Darlington configuration is integrated into a single monolithic structure, enhancing reliability and reducing external component count.
- Build-In Base-Emitter Shunt Resistors: Internal resistors simplify circuit design and reduce the need for external components.
- Pb-Free and RoHS Compliant: The BDX34C is lead-free and compliant with RoHS regulations, making it environmentally friendly.
Applications
- Power Linear Applications: Suitable for linear power amplifiers and regulators due to its high current handling and low saturation voltage.
- Switching Applications: Ideal for low-speed switching circuits, such as power supplies, motor control, and relay drivers.
- General Purpose Amplification: Can be used in various general-purpose amplification circuits where high current gain and low power losses are required.
Q & A
- What is the maximum collector-emitter voltage (VCEO) of the BDX34C?
The maximum collector-emitter voltage (VCEO) of the BDX34C is 100 V.
- What is the maximum collector current (IC) of the BDX34C?
The maximum collector current (IC) of the BDX34C is 10 A.
- What is the thermal resistance junction-case (Rthj-case) of the BDX34C?
The thermal resistance junction-case (Rthj-case) of the BDX34C is 1.78 °C/W.
- What is the DC current gain (hFE) of the BDX34C?
The DC current gain (hFE) of the BDX34C is 750.
- What is the collector-emitter saturation voltage (VCE(sat)) of the BDX34C?
The collector-emitter saturation voltage (VCE(sat)) of the BDX34C is 2.5 V.
- Is the BDX34C Pb-Free and RoHS Compliant?
Yes, the BDX34C is Pb-Free and RoHS Compliant.
- What is the maximum operating junction temperature (Tj) of the BDX34C?
The maximum operating junction temperature (Tj) of the BDX34C is 150 °C.
- What is the storage temperature range (Tstg) of the BDX34C?
The storage temperature range (Tstg) of the BDX34C is -65 to 150 °C.
- What type of package does the BDX34C come in?
The BDX34C comes in a TO-220 plastic package.
- What are the typical applications of the BDX34C?
The BDX34C is typically used in power linear and switching applications, including power supplies, motor control, and general-purpose amplification.
- What is the base-emitter on voltage (VBE(on)) of the BDX34C?
The base-emitter on voltage (VBE(on)) of the BDX34C is 2.5 V.
