Overview
The STTH8R04DI is an ultrafast recovery diode produced by STMicroelectronics. This device utilizes ST's advanced 400 V planar Pt doping technology, making it highly suitable for applications in switching mode base drive and transistor circuits. The STTH8R04DI is packaged in an insulated TO-220AC package, which provides electrical insulation up to 2500 V RMS and is ECOPACK®2 compliant, ensuring environmental sustainability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 400 | V |
| IF(RMS) (RMS forward current) | 20 | A |
| IF(AV) (Average forward current, δ = 0.5) | 8 | A |
| IFRM (Repetitive peak forward current) | 165 | A |
| IFSM (Surge non repetitive forward current) | 120 | A |
| Tstg (Storage temperature range) | -65 to +175 | °C |
| Tj (Operating junction temperature range) | -40 to +175 | °C |
| VF (typ) (Forward voltage drop at Tj = 25°C, IF = 8 A) | 0.9 | V |
| trr (typ) (Reverse recovery time at Tj = 25°C, IF = 1 A, dIF/dt = -50 A/μs) | 25-50 | ns |
| Rth(j-c) (Junction to case thermal resistance) | 5.5 | °C/W |
Key Features
- Very low switching losses: Optimized for high-frequency operations, reducing energy losses during switching.
- High frequency and high pulsed current operation: Suitable for applications requiring high-frequency switching and pulsed current handling.
- High junction temperature: Can operate up to a junction temperature of 175°C, ensuring reliability in demanding environments.
- Insulated package: The TO-220AC Ins package provides electrical insulation up to 2500 V RMS, enhancing safety and reliability.
- ECOPACK®2 compliant: Environmentally friendly packaging that meets stringent environmental standards.
Applications
The STTH8R04DI is designed for use in various high-frequency and high-power applications, including:
- Switching mode base drive and transistor circuits: Ideal for driving power transistors in switching mode power supplies.
- Low voltage, high frequency inverters: Suitable for inverter applications requiring high-frequency operation.
- Free wheeling and polarity protection: Used in circuits that require protection against reverse polarity and free-wheeling diodes.
Q & A
- What is the maximum repetitive peak reverse voltage of the STTH8R04DI?
The maximum repetitive peak reverse voltage (VRRM) is 400 V.
- What is the average forward current rating of the STTH8R04DI?
The average forward current (IF(AV)) is 8 A.
- What is the operating junction temperature range of the STTH8R04DI?
The operating junction temperature range is -40°C to +175°C.
- What is the typical forward voltage drop of the STTH8R04DI at 25°C and 8 A?
The typical forward voltage drop (VF) at 25°C and 8 A is 0.9 V.
- What is the reverse recovery time of the STTH8R04DI?
The reverse recovery time (trr) is typically between 25-50 ns at 25°C, IF = 1 A, and dIF/dt = -50 A/μs.
- What type of package does the STTH8R04DI come in?
The STTH8R04DI comes in an insulated TO-220AC package.
- What is the electrical insulation rating of the TO-220AC Ins package?
The electrical insulation rating is up to 2500 V RMS.
- Is the STTH8R04DI ECOPACK® compliant?
- What are some typical applications of the STTH8R04DI?
Typical applications include switching mode base drive and transistor circuits, low voltage high frequency inverters, and free-wheeling and polarity protection.
- How do I calculate the conduction losses for the STTH8R04DI?
Conduction losses can be calculated using the equation: P = 0.83 x IF(AV) + 0.034 x IF2(RMS).
