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Best Alternatives to RB520S30T5G

Package: SC-79, SOD-523onsemiDiodes - Rectifiers - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 30 VCurrent - Average Rectified (Io): 200mAVoltage - Forward (Vf) (Max) @ If: 600 mV @ 200 mACurrent - Reverse Leakage @ Vr: 1 µA @ 10 V

Find and compare alternatives for the onsemi RB520S30T5G, a 30V, 200mA Schottky diode in a SOD-523 package. Key considerations for replacement include reverse leakage current and forward voltage.

AI replacement insight

Electrical riskmedium

Variations in reverse leakage and forward voltage across candidates require careful review.

Package risklow

All viable candidates use the same SOD-523 package, ensuring form-fit compatibility.

Can it be replaced directly?

While no perfect drop-in is guaranteed without testing, NSR0240V2T1G is the most promising candidate. Several other parts match the package and primary ratings but have higher reverse leakage, requiring careful circuit review.

Best replacement path

NSR0240V2T1G from onsemi is a strong upgrade path, offering higher voltage/current ratings and lower reverse leakage in the same package.

Main risk

The primary risk when substituting is an increase in reverse leakage current (IR), which can impact power consumption and circuit behavior in sensitive applications.

Recommended alternatives

2
NSR0240V2T1G package
NSR0240V2T1G

onsemi

Needs validationlow risk

An excellent upgrade from the same manufacturer with higher ratings and lower leakage.

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Alternative comparison matrix

Feature / factorRB520S30T5GNSR0240V2T1GSD103AWTAlt 3Compatibility / risk
PackageSOD-523SOD-523SOD-523SOD-523 — Identical package ensures form/fit compatibility.; SD103AWT: Identical package.
Voltage30V40V40V40V — Higher voltage rating provides more design margin.; SD103AWT: Higher voltage rating.
Current200mA250mA350mA250mA / 350mA — Higher current rating provides more design margin.; SD103AWT: Higher current rating.
Forward Voltage0.6V @ 200mA0.48V @ 100mA0.6V @ 200mA0.48V @ 100mA / 0.6V @ 200mA — Lower forward voltage drop improves efficiency.; SD103AWT: Comparable forward voltage.
Reverse Leakage1.0µA0.2µA @ 25V5µA @ 30V0.2µA @ 25V / 5µA @ 30V — Significantly lower leakage is ideal for low-power circuits.; SD103AWT: Slightly higher leakage current.

Application & sourcing insights

Questions & answers

NSR0240V2T1G from onsemi is an excellent alternative, providing upgraded voltage, current, and lower leakage in the same SOD-523 package.