Is there a pin-compatible replacement for SK310A-LTP?

Yes, several parts like SS510 SMA and SS320 use the same DO-214AC (SMA) package and are considered pin-compatible replacements. However, always verify the datasheet's recommended land pattern before layout.

What risks should I check before replacing SK310A-LTP?

Before replacing SK310A-LTP, check for three main risks: 1) Package mismatch, which requires a PCB redesign. 2) Insufficient electrical ratings, especially current (must be ≥3A) and voltage (must be ≥100V). 3) Different diode technology (e.g., using a standard rectifier instead of a Schottky), which will increase forward voltage and change switching behavior.

SK310A-LTP Alternatives, Datasheet & Cross Reference | Micro Commercial Components Corp.

SK310A-LTP is a popular 3A, 100V Schottky diode in a DO-214AC (SMA) package, widely used in power applications. This page provides verified alternatives, including performance upgrades and functional matches for various design needs.

AI replacement insight

Electrical risklow

Many Schottky diodes with similar or better specs are available.

Package riskhigh

Must match the DO-214AC (SMA) footprint to avoid board redesign.

Sourcing risklow

This is a common diode type available from multiple manufacturers.

Can it be replaced directly?

Yes, SS510 SMA is a strong candidate for direct replacement, offering improved current handling in the same package.

Best replacement path

For a drop-in replacement, choose an alternative in the same DO-214AC (SMA) package with at least 3A/100V ratings, like SS510 SMA.

Main risk

The main risk is selecting a part with a different package (requiring a board spin) or a lower current rating.

Recommended alternatives

Upgrade candidate with higher 5A current rating and wider temperature range in the same SMA package.

View details

Alternative comparison matrix

Feature / factor	SK310A-LTP	SS510 SMA	SS320	Compatibility / risk
Polarity Or Type	Schottky	Schottky	Schottky	Schottky — Diode technology matches.; SS320: Diode type matches (inferred from summary).
Package	DO-214AC (SMA)	DO-214AC (SMA)	DO-214AC (SMA)	DO-214AC (SMA) — Same package ensures form and fit.; SS320: Same package ensures form and fit.
Voltage	100V	100V	200V	100V / 200V — Reverse voltage rating matches.; SS320: Higher voltage rating provides more margin.
Current	3A	5A	3A	5A / 3A — Higher current rating provides more design margin.; SS320: Current rating matches.
Temperature	-50°C to +125°C	-55°C to +150°C	-	-55°C to +150°C — Wider operating temperature range.
Forward Voltage	0.85V	-	0.92V	0.92V — Slightly higher Vf may increase power loss.

Application & sourcing insights

Questions & answers

SS510 SMA is an excellent alternative to SK310A-LTP. It serves as an upgrade, offering a higher 5A current rating and a wider temperature range in the same DO-214AC (SMA) package.