What risks should I check before replacing 1SS184?

The main risk is performance degradation. The 1SS184 is a very fast (4ns trr) switching diode. Many alternatives are much slower, which can cause issues in high-frequency circuits. Always verify the trr of a replacement.

1SS184 Alternatives, Datasheet & Cross Reference | Shenzhen SLKOR Micro Semicon Co., Ltd.

Find the best replacements for the 1SS184, a fast 80V switching diode in a SOT-23 package. This guide analyzes pin-compatible alternatives and highlights key parametric differences.

AI replacement insight

Electrical riskmedium

Switching speed (trr) is critical and hard to match exactly.

Package risklow

SOT-23 is a common package with standard pinouts.

Can it be replaced directly?

Direct replacement for 1SS184 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BAS16LT1G is the most promising path, being a close parametric match.

Main risk

Switching speed mismatch. The target's 4ns reverse recovery time is a key performance metric that many alternatives fail to match.

Recommended alternatives

Strong alternative with matching package, pinout, and very similar electricals.

View details

Alternative comparison matrix

Feature / factor	1SS184	BAS16LT1G	MMBD1501A	Compatibility / risk
Package	SOT-23	SOT-23	SOT-23	SOT-23 — Package matches.; MMBD1501A: Package and pinout match.
Voltage	80V	100V	200V	100V / 200V — Higher voltage rating provides more margin.; MMBD1501A: Higher voltage rating.
Current	100mA	200mA	200mA	200mA — Higher current rating.; MMBD1501A: Higher current rating.
Trr	4ns	6ns	Not Specified	6ns / Not Specified — Reverse recovery time is very close to target.; MMBD1501A: Critical switching speed is missing.
Capacitance	3pF	2pF	-	2pF — Lower capacitance is generally better.

Application & sourcing insights

Questions & answers

Verified drop-in options for 1SS184 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.