Overview
The STTH1R04AY is an automotive ultrafast recovery diode produced by STMicroelectronics. This device utilizes ST's new 400 V planar Pt doping technology, making it particularly suited for switching mode base drive and transistor circuits. It is packaged in SMA and SMB formats, designed for use in low voltage, high frequency inverters, freewheeling, and polarity protection in automotive applications. The diode is AEC-Q101 qualified and ECOPACK®2 compliant, ensuring high environmental standards and reliability.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| IF(AV) | Average forward current | 1 A | A |
| VRRM | Repetitive peak reverse voltage | 400 V | V |
| Tj (max.) | Operating junction temperature | 175 °C | °C |
| VF (typ.) | Forward voltage drop | 0.9 V | V |
| trr (typ.) | Reverse recovery time | 14 ns | ns |
| IFSM | Surge non-repetitive forward current | 30 A (tp = 10 ms sinusoidal) | A |
| Tstg | Storage temperature range | -65 to +175 °C | °C |
| Rth(j-l) | Junction to lead thermal resistance | 30 °C/W (SMA), 25 °C/W (SMB) | °C/W |
Key Features
- AEC-Q101 qualified for automotive reliability
- Negligible switching losses
- Low forward and reverse recovery times
- High junction temperature capability up to 175 °C
- ECOPACK®2 compliant for environmental sustainability
- Suitable for switching mode base drive and transistor circuits
- Available in SMA and SMB packages
Applications
The STTH1R04AY is designed for use in various automotive applications, including:
- Low voltage, high frequency inverters
- Freewheeling circuits
- Polarity protection circuits
Q & A
- What is the repetitive peak reverse voltage of the STTH1R04AY?
The repetitive peak reverse voltage is 400 V.
- What is the maximum operating junction temperature of the STTH1R04AY?
The maximum operating junction temperature is 175 °C.
- What are the typical forward and reverse recovery times of the STTH1R04AY?
The typical forward recovery time is 50 ns, and the typical reverse recovery time is 14 ns.
- Is the STTH1R04AY AEC-Q101 qualified?
Yes, the STTH1R04AY is AEC-Q101 qualified for automotive reliability.
- What are the package options for the STTH1R04AY?
The STTH1R04AY is available in SMA and SMB packages.
- What is the average forward current rating of the STTH1R04AY?
The average forward current rating is 1 A.
- What is the surge non-repetitive forward current rating of the STTH1R04AY?
The surge non-repetitive forward current rating is 30 A for a 10 ms sinusoidal pulse.
- Is the STTH1R04AY ECOPACK®2 compliant?
Yes, the STTH1R04AY is ECOPACK®2 compliant for environmental sustainability.
- What are the typical applications of the STTH1R04AY?
The typical applications include low voltage, high frequency inverters, freewheeling circuits, and polarity protection circuits in automotive systems.
- What is the storage temperature range for the STTH1R04AY?
The storage temperature range is -65 to +175 °C.
