STTH208UFY Overview
The STTH208UFY is a high-efficiency ultrafast diode designed for industrial power conversion and switching applications. Featuring a high repetitive peak reverse voltage of 800 V and a forward current rating of 20 A, this device offers excellent performance in high-frequency rectification. Its ultrafast recovery time reduces switching losses and electromagnetic interference, making it ideal for use in power supplies, inverters, and motor drives. The STTH208UFY combines reliability with robust thermal and electrical characteristics, ensuring stable operation under demanding industrial environments. For detailed technical data, visit IC Manufacturer.
STTH208UFY Technical Specifications
| Parameter | Value | Unit | Description |
|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 800 | V | Maximum reverse voltage the diode can withstand repetitively |
| Average Forward Current (IF(AV)) | 20 | A | Maximum average current at rated conditions |
| Non-Repetitive Peak Forward Surge Current (IFSM) | 200 | A | Pulse current capability for short surge durations |
| Forward Voltage Drop (VF) | 1.45 | V | Voltage drop at 20 A forward current |
| Reverse Recovery Time (trr) | 75 | ns | Time taken to switch from conducting to blocking mode |
| Junction Temperature Range (Tj) | -65 to +175 | ??C | Operating temperature range of the semiconductor junction |
| Storage Temperature Range (Tstg) | -65 to +175 | ??C | Safe storage temperature limits |
| Package | TO-220AC | ?C | Standard industrial power package for heat dissipation |
STTH208UFY Key Features
- Ultrafast switching: Minimizes switching losses in power electronics, improving overall system efficiency in inverter and converter circuits.
- High surge current capability: Supports 200 A surge current, providing robust protection against transient overloads and enhancing durability under abnormal conditions.
- Low forward voltage drop: Reduces conduction losses and heat generation, which contributes to improved energy efficiency and longer device lifespan.
- Wide operating temperature range: Ensures reliable performance in harsh industrial environments, supporting junction temperatures up to 175 ??C.
- Standard TO-220AC package: Facilitates effective thermal management and easy integration into existing power modules or PCB designs.
Typical Applications
- Power supply rectification: Ideal for high-frequency switching power supplies requiring efficient, fast recovery diodes to reduce losses and electromagnetic interference.
- Motor drive circuits: Suitable for use in inverter-fed motors where ultrafast recovery characteristics help improve switching performance and system reliability.
- Renewable energy inverters: Employed in solar and wind power conversion units, benefiting from its high voltage and current capabilities for efficient energy conversion.
- Industrial UPS systems: Provides robust rectification in uninterruptible power supplies ensuring uninterrupted operation during power anomalies.
STTH208UFY Advantages vs Typical Alternatives
This ultrafast diode offers superior switching speed and lower forward voltage compared to standard rectifiers, resulting in enhanced efficiency and reduced thermal stress. Its high surge current rating improves robustness under transient conditions, while the wide temperature tolerance expands its usability in demanding industrial applications. These advantages make it a more reliable and energy-efficient choice over typical silicon diodes and slower recovery devices.
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STTH208UFY Brand Info
The STTH208UFY is manufactured by STMicroelectronics, a global leader in semiconductor solutions known for high-quality power devices. ST





