The STTH15L06G is a 600 V, 20 A average-rated ultrafast rectifier from STMicroelectronics. Its 85 ns reverse recovery time keeps switching loss low. The 1.55 V forward drop at 15 A sets the conduction loss — the D2PAK copper pad area and airflow must be sized to keep the junction below the 175 °C maximum.
STTH15L06G 600 V 20 A Ultrafast Diode, 85 ns trr, D2PAK
MPNSTTH15L06G
Obsolete
STMicroelectronics STTH15L06G ultrafast high-voltage rectifier, 600 V Vrrm, 20 A average, 85 ns trr, 1.55 Vf at 15 A, D2PAK surface-mount package.
$1.8300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Diode type | Standard |
| Mounting | Surface Mount |
| Voltage - DC reverse (Vr) | 600 V |
| Voltage - forward (Vf) (Max) @ if | 1.55 V @ 15 A |
| Current - reverse leakage @ vr | 15 µA @ 600 V |
| Current - average rectified | 20A |
| Operating temperature - junction | 175°C(Max) |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Package | Tube |
| Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
| Reverse recovery time | 85 ns |
Product details
Frequently asked questions
What is the replacement for STTH15L06G?
ST has not published a direct replacement for the STTH15L06G. For new designs, evaluate a 600 V, 20 A ultrafast diode in D2PAK from the same or a competing family — the 85 ns trr and 1.55 Vf at 15 A are the key parametric targets.