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SS34 Diode For Power Supply

The SS34 diode is a popular surface-mount Schottky diode that’s often used in low-voltage, high-current applications like rectifier circuits, freewheeling protection, and DC-DC converters. It has a low forward voltage drop and fast switching speeds, which means it loses less energy and helps your electronics run more efficiently. With a maximum reverse voltage of 40V and current handling of up to 3A, it’s widely seen in everyday gadgets, computers, and portable electronic devices where performance and reliability really matter.

SS34 Pinout

Nota:
The SS34 diode uses a standard surface-mount (SMA/DO-214AC) package, having two terminals: the anode (positive side) and cathode (negative side). Always double-check polarity to avoid damaging the diode or your circuit.

SS34  diode Equivalent

When selecting a replacement, ensure that the chosen diode meets the specific voltage, current, and thermal requirements of your application. For surface-mount designs, SS34A y MBRS340T3G are excellent choices, while 1N5822 serves well in through-hole configurations.

SS34 vs 1N5822

Summary of Comparison:

The SS34 diode supports higher current ratings (3A compared to 1N5822’s 3A as well), but it offers a compact surface-mount package ideal for space-constrained PCB designs requiring moderate currents and low voltage drop.

The 1N5822 diode also supports a similar current rating (3A), with good surge current handling. However, it typically comes in a larger, axial (through-hole) package suited for applications where surface-mount technology isn’t preferred or practical.

Package size for SS34:

The SS34 diode commonly uses an SMA (DO-214AC) surface-mount package, with approximate dimensions of:

• Longitud: ~4.5 mm

• Ancho: ~2.6 mm

• Altura: ~2.0 mm

This compact size makes it particularly convenient for dense PCB layouts or space-sensitive designs.