Is there a pin-compatible replacement for SD560B?

S5MB shares the same SMB package and pinout. It is a form-fit match, but differences in operating temperature prevent a direct 'pin-to-pin' classification without engineering review.

What risks should I check before replacing SD560B?

Key risks include: 1) Diode Type: Ensure the replacement is a standard rectifier. 2) Forward Voltage (VF): A higher VF increases power loss. 3) Temperature Range: Verify the replacement's operating range meets system requirements.

SD560B Alternatives, Datasheet & Cross Reference | SMC Diode Solutions

The SD560B is a 600V, 5A standard rectifier in an SMB package. When seeking a replacement, key considerations are matching the standard recovery type, forward voltage, and operating temperature range.

AI replacement insight

Electrical riskmedium

Mismatched diode type or forward voltage can cause performance issues.

Package risklow

The SMB package is standard and multiple candidates match.

Can it be replaced directly?

No direct drop-in replacement was identified without caveats. S5MB is the closest candidate but requires review of its temperature specification.

Best replacement path

S5MB offers a good parametric match with an upgraded voltage rating, but requires verification of its narrower temperature range.

Main risk

The primary risk is selecting a part with an incompatible diode type (e.g., Fast vs. Standard) or a higher forward voltage, which can affect circuit performance and efficiency.

Recommended alternatives

A strong functional alternate with a higher voltage rating but a narrower operating temperature range.

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Alternative comparison matrix

Feature / factor	SD560B	S5MB	ES5JB	Compatibility / risk
Package	SMB (DO-214AA)	SMB	SMB	SMB — Package matches.; ES5JB: Package matches.
Voltage	600V	1000V	600V	1000V / 600V — Higher voltage rating provides more margin.; ES5JB: Voltage rating matches.
Current	5.0A	5.0A	5.0A	5.0A — Current rating matches.; ES5JB: Current rating matches.
Diode Type	Standard	Standard	Super Fast	Standard / Super Fast — Functionally equivalent standard rectifier.; ES5JB: Faster recovery may alter circuit behavior (e.g. EMI).
Temperature	-65 to +175°C	-55 to +150°C	-	-55 to +150°C — Narrower operating temperature range.
Forward Voltage	1.2V	-	1.7V	1.7V — Higher VF increases power dissipation.

Application & sourcing insights

Questions & answers

S5MB is a strong functional alternative with a higher voltage rating (1000V). However, its operating temperature range is narrower and must be verified for your application.