Overview
The STTH812D, produced by STMicroelectronics, is an ultrafast recovery diode designed for high-performance applications. This diode features low leakage current, regularly reproducible characteristics, and intrinsic ruggedness, making it ideal for heavy-duty applications that demand long-term reliability. The STTH812D is available in various packages, including TO-220AC, TO-220Ins, TO-220FPAC, and D2PAK, each with specific electrical insulation and thermal characteristics.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| VRRM | Repetitive peak reverse voltage | 1200 | V |
| IF(RMS) | RMS forward current (TO-220AC / D2PAK / TO-220FPAC) | 30 | A |
| IF(AV) | Average forward current (TO-220AC / D2PAK, Tc = 140°C) | 8 | A |
| IFRM | Repetitive peak forward current (tp = 5 µs, F = 5 kHz square) | 100 | A |
| IFSM | Surge non-repetitive forward current (tp = 10 ms Sinusoidal) | 80 | A |
| Tstg | Storage temperature range | -65 to +175 | °C |
| Tj | Maximum operating junction temperature | 175 | °C |
| VF (typ) | Forward voltage drop (Tj = 25°C, IF = 8 A) | 1.25 | V |
| trr (typ) | Reverse recovery time (IF = 1 A, dIF/dt = -50 A/µs, VR = 30 V, Tj = 25°C) | 50 ns | ns |
| Rth(j-c) | Junction to case thermal resistance (TO-220AC / D2PAK) | 1.9 | °C/W |
Key Features
- Ultrafast, soft recovery characteristics
- Very low conduction and switching losses
- High frequency and/or high pulsed current operation
- High reverse voltage capability (1200 V)
- High junction temperature (175°C)
- Insulated packages with electrical insulation up to 2500 VRMS
- Low leakage current and improved thermal runaway guard band
Applications
The STTH812D is suitable for various demanding applications, including:
- Industrial power supplies
- Motor control systems
- Rectification and freewheeling in mission-critical systems
- Auxiliary functions such as snubber, bootstrap, and demagnetization applications
Q & A
- What is the repetitive peak reverse voltage of the STTH812D?
The repetitive peak reverse voltage (VRRM) is 1200 V.
- What is the maximum operating junction temperature of the STTH812D?
The maximum operating junction temperature (Tj) is 175°C.
- What are the typical forward voltage drop and reverse recovery time of the STTH812D?
The typical forward voltage drop (VF) is 1.25 V at 25°C with IF = 8 A, and the typical reverse recovery time (trr) is 50 ns.
- What are the different packages available for the STTH812D?
The STTH812D is available in TO-220AC, TO-220Ins, TO-220FPAC, and D2PAK packages.
- What is the RMS forward current rating for the TO-220AC package?
The RMS forward current (IF(RMS)) for the TO-220AC package is 30 A.
- What is the surge non-repetitive forward current rating of the STTH812D?
The surge non-repetitive forward current (IFSM) is 80 A for tp = 10 ms Sinusoidal.
- What is the junction to case thermal resistance for the TO-220AC package?
The junction to case thermal resistance (Rth(j-c)) for the TO-220AC package is 1.9 °C/W.
- What are some typical applications of the STTH812D?
Typical applications include industrial power supplies, motor control systems, and auxiliary functions like snubber, bootstrap, and demagnetization.
- Does the STTH812D come in lead-free packages?
- What is the storage temperature range for the STTH812D?
The storage temperature range (Tstg) is -65 to +175°C.
