Overview
The BC517-D74Z is an NPN Darlington transistor produced by onsemi. This device is designed for applications that require extremely high current gain, particularly at currents up to 1.0 A. It is sourced from process 05 and is a Pb-free device, making it suitable for a wide range of modern electronic systems. The transistor is packaged in a TO-92-3 configuration, which is a common and versatile package for through-hole mounting.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCEO (Collector-Emitter Voltage) | 30 | V |
| VCBO (Collector-Base Voltage) | 40 | V |
| VEBO (Emitter-Base Voltage) | 10 | V |
| IC (Collector Current - Continuous) | 1.2 | A |
| TJ, TSTG (Operating and Storage Junction Temperature Range) | -55 to +150 | °C |
| PD (Total Device Dissipation, TA = 25°C) | 625 | mW |
| Derate Above 25°C | 5.0 | mW/°C |
| RθJC (Thermal Resistance, Junction-to-Case) | 83.3 | °C/W |
| RθJA (Thermal Resistance, Junction-to-Ambient) | 200 | °C/W |
| hFE (DC Current Gain) | 30,000 | |
| VCE(sat) (Collector-Emitter Saturation Voltage) | 1 | V |
| VBE(on) (Base-Emitter On Voltage) | 1.4 | V |
Key Features
- High current gain: Designed for applications requiring extremely high current gain at currents up to 1.0 A.
- Pb-free: Compliant with lead-free regulations, making it suitable for modern electronic systems.
- TO-92-3 package: Through-hole mounting configuration, which is versatile and widely used.
- High collector-emitter voltage: Up to 30 V, suitable for a variety of power applications.
- Wide operating temperature range: From -55°C to +150°C, making it robust for different environmental conditions.
Applications
The BC517-D74Z is suitable for a wide range of applications that require high current gain and reliability. These include:
- Power amplifiers and drivers
- Relay drivers
- Motor control circuits
- High-current switching applications
- General-purpose amplification in industrial and consumer electronics
Q & A
- What is the maximum collector-emitter voltage of the BC517-D74Z?
The maximum collector-emitter voltage (VCEO) is 30 V.
- What is the continuous collector current rating of the BC517-D74Z?
The continuous collector current (IC) is 1.2 A.
- What is the operating temperature range of the BC517-D74Z?
The operating and storage junction temperature range is from -55°C to +150°C.
- What is the thermal resistance from junction to case (RθJC) for the BC517-D74Z?
The thermal resistance from junction to case (RθJC) is 83.3 °C/W.
- What is the typical DC current gain (hFE) of the BC517-D74Z?
The typical DC current gain (hFE) is 30,000.
- What is the collector-emitter saturation voltage (VCE(sat)) of the BC517-D74Z?
The collector-emitter saturation voltage (VCE(sat)) is 1 V.
- What is the base-emitter on voltage (VBE(on)) of the BC517-D74Z?
The base-emitter on voltage (VBE(on)) is 1.4 V.
- Is the BC517-D74Z Pb-free?
Yes, the BC517-D74Z is a Pb-free device.
- What package type is the BC517-D74Z available in?
The BC517-D74Z is available in a TO-92-3 package.
- What are some typical applications for the BC517-D74Z?
Typical applications include power amplifiers, relay drivers, motor control circuits, high-current switching applications, and general-purpose amplification in industrial and consumer electronics.
