Is there a pin-compatible replacement for MURA120T3G-FS?

Yes, several parts like STTH1L06A-FS share the same 2-pin SMA/DO-214AC package. However, they are not drop-in replacements due to differences in electrical parameters like recovery time and forward voltage, which require engineering validation.

What risks should I check before replacing MURA120T3G-FS?

The main risks are electrical. Check the reverse recovery time (trr); a slower value can cause issues in high-frequency circuits. Also, verify the forward voltage (Vf); a higher value will increase power dissipation and heat. Always check the datasheet for your specific application requirements.

MURA120T3G-FS Alternatives, Datasheet & Cross Reference | FUXINSEMI

MURA120T3G-FS is a 200V, 1A ultra-fast rectifier in an SMA package, ideal for high-frequency power applications. Key alternatives exist with similar packages but may require review of recovery time and forward voltage.

AI replacement insight

Electrical riskmedium

Slower recovery time and higher forward voltage in alternatives require circuit validation.

Package risklow

All viable candidates share the same SMA/DO-214AC package.

Can it be replaced directly?

No direct drop-in replacement is confirmed. STTH1L06A-FS is a strong candidate but requires review of its slower recovery time (50ns vs 25ns) and higher forward voltage.

Best replacement path

STTH1L06A-FS offers the closest parametric match among the candidates reviewed.

Main risk

The primary risk is functional failure or reduced efficiency in high-frequency applications due to slower reverse recovery time in all available alternatives.

Recommended alternatives

A 600V, 1A ultra-fast rectifier in the same SMA package. Offers higher voltage but is slightly slower.

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Alternative comparison matrix

Feature / factor	MURA120T3G-FS	STTH1L06A-FS	STTH112A-FS	Compatibility / risk
Package	SMA/DO-214AC	SMA/DO-214AC	SMA/DO-214AC	SMA/DO-214AC — Package matches.; STTH112A-FS: Package matches.
Voltage	200V	600V	1200V	600V / 1200V — Higher voltage rating provides more margin.; STTH112A-FS: Significantly higher voltage rating.
Current	1.0A	1.0A	1.0A	1.0A — Current rating matches.; STTH112A-FS: Current rating matches.
Speed	25ns (trr)	50ns	75ns	50ns / 75ns — Slower recovery time may affect high-frequency performance.; STTH112A-FS: Significantly slower recovery time requires validation.
Forward Voltage	0.875V	1.25V	-	1.25V — Higher Vf increases power dissipation.
Temperature	-55°C to +175°C	-	-50°C to +175°C	-50°C to +175°C — Slightly narrower operating temperature range.

Application & sourcing insights

Questions & answers

STTH1L06A-FS is a strong alternative. It has the same package and current rating with higher voltage, but its slightly slower recovery time (50ns vs 25ns) and higher forward voltage should be reviewed for your specific application.