The STPS3045CG packages two Schottky diodes in a common-cathode configuration, each rated for 15 A average rectified current (Io) with a 45 V reverse voltage maximum. The forward voltage drop is 570 mV at 15 A per diode — a key figure for efficiency in OR-ing, freewheeling, and output rectification stages where lower Vf reduces conduction loss. The fast recovery characteristic (≤ 500 ns, > 200 mA) is typical for a Schottky; the real switching advantage is the lack of stored charge, so recovery losses are minimal in high-frequency PFC and flyback converters.
STPS3045CG Schottky Rectifier, 45V 30A Dual Common Cathode
MPNSTPS3045CG
Obsolete
STMicroelectronics STPS3045CG, Schottky Diode, 1 Pair Common Cathode, 45 V, 30 A (2 x 15 A), 570 mV Vf at 15 A, Fast Recovery ≤ 500 ns, Surface Mount D2PAK (TO-263AB), Tube.
$1.4300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Diode type | Schottky |
| Mounting | Surface Mount |
| Voltage - DC reverse (Vr) | 45 V |
| Voltage - forward (Vf) (Max) @ if | 570 mV @ 15 A |
| Current - reverse leakage @ vr | 200 µA @ 45 V |
| Current - average rectified (Io) (per diode) | 15A |
| Operating temperature - junction | 200°C(Max) |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Package | Tube |
| Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |
| Diode configuration | 1 Pair Common Cathode |
Product details
Frequently asked questions
What is the replacement for STPS3045CG?
No official replacement order code is recorded. The base product number STPS3045 covers several variants; a pin-compatible alternative within the same family may exist, but you must verify footprint, voltage rating, current rating, and forward voltage against your application before substituting.