Overview
The 2STN2540 is a low voltage, fast-switching PNP power bipolar transistor manufactured by STMicroelectronics. This transistor is produced using the advanced 'PB-HCD' (Power Bipolar High Current Density) technology, which results in exceptional high gain performances and very low collector-emitter saturation voltage. It is packaged in a surface-mount SOT-223 format, making it suitable for medium power applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | -40 | V |
| Collector-Emitter Voltage (VCEO) | -40 | V |
| Emitter-Base Voltage (VEBO) | -6 | V |
| Collector Current (IC) | -5 | A |
| Collector Peak Current (ICM) | -10 | A (tP < 5ms) |
| Base Peak Current (IBM) | -2 | A (tP < 5ms) |
| Total Dissipation at Tamb = 25 °C (Ptot) | 1.6 | W |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Max. Operating Junction Temperature (TJ) | 150 | °C |
| Collector-Emitter Saturation Voltage (VCE(sat)) | -80 to -450 | mV |
| Base-Emitter Saturation Voltage (VBE(sat)) | -1.3 | V |
| DC Current Gain (hFE) | 50 to 250 |
Key Features
- Very low collector-emitter saturation voltage
- High current gain characteristic
- Fast switching speed
- Surface mounting device in medium power SOT-223 package
Applications
- Emergency lighting
- LED drivers
- CCFL drivers (back lighting)
- Voltage regulation
- Relay driver
Q & A
- What is the maximum collector current of the 2STN2540 transistor?
The maximum collector current (IC) is -5 A.
- What is the maximum operating junction temperature for the 2STN2540?
The maximum operating junction temperature (TJ) is 150 °C.
- What package type is used for the 2STN2540 transistor?
The transistor is packaged in a SOT-223 format.
- What are the key features of the 2STN2540 transistor?
The key features include very low collector-emitter saturation voltage, high current gain characteristic, fast switching speed, and surface mounting in a medium power SOT-223 package.
- What are some common applications of the 2STN2540 transistor?
Common applications include emergency lighting, LED drivers, CCFL drivers (back lighting), voltage regulation, and relay drivers.
- What is the maximum collector-emitter voltage for the 2STN2540 transistor?
The maximum collector-emitter voltage (VCEO) is -40 V.
- What is the thermal resistance junction-ambient (Rthj-amb) for the 2STN2540?
The thermal resistance junction-ambient (Rthj-amb) is 78 °C/W when the device is mounted on a PCB area of 1cm².
- Is the 2STN2540 transistor RoHS compliant?
Yes, the 2STN2540 transistor is RoHS compliant and comes in an ECOPACK2 package.
- What is the storage temperature range for the 2STN2540 transistor?
The storage temperature range (Tstg) is -65 to 150 °C.
- What is the DC current gain (hFE) range for the 2STN2540 transistor?
The DC current gain (hFE) ranges from 50 to 250.
