What Is the SS34? 3A 40V SMD Power Schottky Diode and Uses
The SS34 is a power Schottky diode rated 3 A and 40 V reverse voltage in an SMD (SMA/DO-214AC) package. It is used for rectification/freewheeling and reverse-polarity protection in SMPS and DC-DC converters. The family is numbered by reverse voltage: SS32=20V, SS34=40V, SS36=60V. It is like the SMD counterpart of the 1N5822.
The SS34 is a power Schottky diode rated 3 A and 40 V reverse voltage in an SMD (SMA/DO-214AC) package. With its low forward voltage and surface-mount body it is the standard diode of switching power supplies and DC-DC converters. For the concept, see what is a Schottky diode.
What is the SS34 used for?
Freewheeling and output rectification in SMPS/DC-DC converters, reverse-polarity protection, LED drivers and general surface-mount power rectification. It is like the SMD counterpart of the 1N5822 (3A Schottky).
Specifications
| Parameter | Value |
|---|---|
| Type | Power Schottky (SMD) |
| Current (IF) | 3 A |
| Reverse voltage (VR) | 40 V |
| Package | SMA / DO-214AC |
Watch out
The SS3x family is numbered by reverse voltage: SS32=20V, SS34=40V, SS36=60V. Schottky leakage rises with heat; account for it in hot applications. At 3 A the SMD's copper pour must be enough to spread the heat.
Equivalents
- 1N5822: a 3A 40V through-hole Schottky.
- SS36: 60V, same family (higher voltage).
- SK34 / MBRS340: similar SMD power Schottkys.
Find it in our catalog
Use the SS34 search.