Is there a pin-compatible replacement for SS1150?

Yes, SS1200, SS2150, and SS3150 from manufacturer MDD are pin-compatible replacements in the same DO-214AC (SMA) package.

What risks should I check before replacing SS1150?

Verify the replacement's package is DO-214AC (SMA), as some similar part numbers exist in the non-interchangeable DO-214AA (SMB) package.

SS1150 Alternatives, Datasheet & Cross Reference | Microdiode Semiconductor (Shenzhen) Co., Ltd.

The MDD SS1150 is a 150V, 1A Schottky diode in a common SMA package. Several pin-compatible upgrades with higher current or voltage ratings are available, as well as functional alternatives in different packages.

AI replacement insight

Electrical risklow

Upgrades to higher voltage/current are generally safe.

Package riskmedium

Confirm package is SMA (DO-214AC), not SMB (DO-214AA), as land patterns differ.

Can it be replaced directly?

Yes, MDD SS1200, SS2150, and SS3150 are strong candidates for pin-compatible replacement, offering higher voltage or current ratings.

Best replacement path

MDD SS1200, SS2150, and SS3150 are pin-compatible upgrades in the same package.

Main risk

The main risk is ensuring the package matches, as some MPNs are sold in both SMA and SMB packages by different vendors.

Recommended alternatives

Pin-compatible upgrade with a higher voltage rating (200V) in the same SMA package.

View details

Alternative comparison matrix

Feature / factor	SS1150	SS1200	SS2150	SS3150	Compatibility / risk
Package	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA / DO-214AA (SMB) — Package matches target.; SS2150: Package matches target.; SS3150: Package matches target.; SS5150B: Package mismatch. Not a drop-in replacement.
Polarity Or Type	Schottky	Schottky	Schottky	Schottky	Schottky — Diode type matches.; SS2150: Diode type matches.; SS3150: Diode type matches.; SS5150B: Diode type matches.
Voltage V	150.0V	200.0V	150.0V	150.0V	200.0V / 150.0V — Higher voltage rating is a safe upgrade.; SS2150: Voltage rating matches.; SS3150: Voltage rating matches.; SS5150B: Voltage rating matches.
Current A	1.0A	1.0A	2.0A	3.0A	1.0A / 2.0A / 3.0A / 5.0A — Current rating matches.; SS2150: Higher current rating is a safe upgrade.; SS3150: Higher current rating is a safe upgrade.; SS5150B: Higher current rating.

Application & sourcing insights

Questions & answers

MDD SS1200, SS2150, and SS3150 are excellent pin-compatible upgrades offering improved voltage or current specifications in the same SMA package.