Overview
The SD2931-10W is a high-performance RF power transistor manufactured by STMicroelectronics. This N-channel MOS field-effect transistor is designed for use in HF/VHF/UHF applications, particularly in large signal environments up to 230 MHz. It is electrically identical to the standard SD2931 but offers enhanced thermal capabilities, making it ideal for Industrial, Scientific, and Medical (ISM) applications where reliability and ruggedness are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VBRDSS) | 125 | V |
| Drain-Gate Voltage (VDGR) | 125 | V |
| Gate-Source Voltage (VGS) | ±40 | V |
| Drain Current (ID) | 20 | A |
| Power Dissipation (PDISS) | 389 | W |
| Maximum Operating Junction Temperature (TJ) | 200 | °C |
| Storage Temperature (TSTG) | -65 to +150 | °C |
| Junction-Case Thermal Resistance (RthJC) | 0.45 | °C/W |
| Output Power (POUT) @ 175 MHz | 150 W min. | W |
| Power Gain @ 175 MHz | 14 dB | dB |
Key Features
- Gold metalization for improved reliability and thermal stability.
- Excellent thermal stability and lower thermal resistance (25% lower than the standard SD2931).
- Common source configuration.
- Thermally enhanced packaging to reduce junction temperatures.
- High output power and power gain, making it suitable for high-frequency applications.
- ECOPACK® compliant packaging for environmental compliance.
Applications
The SD2931-10W is primarily used in HF/VHF/UHF applications, including:
- Industrial, Scientific, and Medical (ISM) equipment.
- RF amplifiers and transmitters.
- High-frequency communication systems.
- Medical devices requiring high reliability and ruggedness.
Q & A
- What is the maximum drain-source voltage of the SD2931-10W?
The maximum drain-source voltage (VBRDSS) is 125 V.
- What is the maximum operating junction temperature of the SD2931-10W?
The maximum operating junction temperature (TJ) is 200 °C.
- What is the typical output power of the SD2931-10W at 175 MHz?
The typical output power (POUT) at 175 MHz is 150 W min. with 14 dB gain.
- What are the key features of the SD2931-10W's packaging?
The packaging is thermally enhanced and ECOPACK® compliant, offering lower thermal resistance and environmental compliance.
- In what types of applications is the SD2931-10W commonly used?
The SD2931-10W is commonly used in ISM equipment, RF amplifiers, high-frequency communication systems, and medical devices.
- What is the storage temperature range for the SD2931-10W?
The storage temperature range is -65 to +150 °C.
- What is the junction-case thermal resistance of the SD2931-10W?
The junction-case thermal resistance (RthJC) is 0.45 °C/W.
- Is the SD2931-10W RoHS compliant?
Yes, the SD2931-10W is RoHS compliant.
- What is the typical power gain of the SD2931-10W at 175 MHz?
The typical power gain at 175 MHz is 14 dB.
- How does the SD2931-10W differ from the standard SD2931?
The SD2931-10W has better thermal capability (25% lower thermal resistance) compared to the standard SD2931.
