Overview
The STTH102A, produced by STMicroelectronics, is a high-efficiency ultrafast diode designed for various power switching applications. It utilizes ST's 200 V planar Pt doping technology, making it particularly suitable for switching mode base drive and transistor circuits. Available in SMA and DO-41 packages, this diode is ideal for use as a free wheeling diode in power supplies and other power switching applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive Peak Reverse Voltage) | 200 | V |
| IF(AV) (Average Forward Current) | 1 A (SMA, TL = 145 °C), 1 A (DO-41, TL = 130 °C) | A |
| IFSM (Surge Non-Repetitive Forward Current) | 40 A (SMA, tp = 10 ms), 50 A (DO-41, tp = 10 ms) | A |
| Tstg (Storage Temperature Range) | -65 to +175 | °C |
| Tj (Operating Junction Temperature) | +175 | °C |
| VF (Forward Voltage Drop) | 0.68 V (typical at Tj = 25 °C, IF = 1 A) | V |
| trr (Reverse Recovery Time) | 12 ns (typical at Tj = 25 °C, IF = 0.5 A, Irr = 0.25 A, IR = 1 A) | ns |
| Rth(j-l) (Junction to Lead Thermal Resistance) | 30 °C/W (SMA), 50 °C/W (DO-41) | °C/W |
Key Features
- Very low conduction losses
- Negligible switching losses
- Low forward voltage drop
- High junction temperature capability
- ECOPACK®2 compliant, meeting environmental standards
Applications
- Switching diode in power supplies
- LED Lighting applications
- Auxiliary power supply
- Flyback diode in switching mode power supplies
Q & A
- What is the maximum repetitive peak reverse voltage of the STTH102A?
The maximum repetitive peak reverse voltage (VRRM) is 200 V.
- What is the average forward current rating for the STTH102A in SMA and DO-41 packages?
The average forward current (IF(AV)) is 1 A for both SMA and DO-41 packages, with different lead temperatures (TL = 145 °C for SMA and TL = 130 °C for DO-41).
- What are the typical forward voltage drop and reverse recovery time for the STTH102A?
The typical forward voltage drop (VF) is 0.68 V at Tj = 25 °C and IF = 1 A. The typical reverse recovery time (trr) is 12 ns at Tj = 25 °C, IF = 0.5 A, Irr = 0.25 A, and IR = 1 A.
- What are the thermal resistance characteristics of the STTH102A?
The junction to lead thermal resistance (Rth(j-l)) is 30 °C/W for SMA and 50 °C/W for DO-41 packages.
- Is the STTH102A environmentally compliant?
Yes, the STTH102A is ECOPACK®2 compliant, meeting environmental standards.
- What are the common applications of the STTH102A?
Common applications include switching diodes in power supplies, LED lighting, auxiliary power supplies, and flyback diodes in switching mode power supplies.
- What is the maximum operating junction temperature for the STTH102A?
The maximum operating junction temperature (Tj) is +175 °C.
- What is the storage temperature range for the STTH102A?
The storage temperature range (Tstg) is -65 to +175 °C.
- What are the package options available for the STTH102A?
The STTH102A is available in SMA and DO-41 packages.
- How can I obtain the EDA symbols, footprints, and 3D models for the STTH102A?
You can download the EDA symbols, footprints, and 3D models from the STMicroelectronics website to support your design process.
- Where can I purchase the STTH102A?
The STTH102A can be purchased from STMicroelectronics or through authorized distributors.
