Is there a pin-compatible replacement for LRB521BS-30T5G?

LMBR4010BST5G shares the same SOD882 package and is likely pin-compatible. However, it's not confirmed as a drop-in replacement without reviewing its forward voltage (Vf) against your circuit's requirements.

What risks should I check before replacing LRB521BS-30T5G?

Key risks include: 1) Package mismatch, requiring a new PCB layout. 2) Higher forward voltage (Vf), which can reduce efficiency. 3) Insufficient voltage rating, which can lead to failure. Always compare datasheets carefully.

LRB521BS-30T5G Alternatives, Datasheet & Cross Reference | LRC

Finding a substitute for the LRC LRB521BS-30T5G, a 30V 200mA Schottky diode in a SOD882 package, involves matching key electrical parameters and the physical footprint. Alternatives exist with similar or upgraded ratings, but require careful review of forward voltage and package compatibility.

AI replacement insight

Package riskmedium

Some candidates have different packages, requiring a PCB redesign.

Electrical riskmedium

Forward voltage (Vf) and voltage margin vary between candidates and must be verified.

Sourcing risklow

Multiple alternatives with similar function are available from various manufacturers.

Can it be replaced directly?

No verified direct drop-in replacement is available without engineering review. LMBR4010BST5G is the closest candidate but requires checking the forward voltage characteristic.

Best replacement path

LMBR4010BST5G from the same manufacturer offers a potential form-fit-function replacement with upgraded voltage and current, but its forward voltage must be verified.

Main risk

The main risks are package incompatibility, requiring a PCB redesign, or subtle electrical differences like forward voltage (Vf) that can affect circuit efficiency and thermal performance.

Recommended alternatives

Same package with higher voltage and current ratings, but forward voltage requires review.

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Alternative comparison matrix

Feature / factor	LRB521BS-30T5G	LMBR4010BST5G	XBS104S14	Compatibility / risk
Package	SOD882	SOD882	SOD-123FL	SOD882 / SOD-123FL — Same package and pin count.; XBS104S14: Different package requires PCB redesign.
Voltage	30V	40V	40V	40V — Higher voltage rating provides more margin.; XBS104S14: Higher voltage rating.
Current	0.2A	1A	1A	1A — Higher current rating.; XBS104S14: Higher current rating.
Forward Voltage	0.5V @ 200mA	0.6V @ 1A	-	0.6V @ 1A — Vf is specified at a different current. Must verify Vf at operating current.
Temperature	125°C	125°C	-	125°C — Matching maximum junction temperature.

Application & sourcing insights

Questions & answers

LMBR4010BST5G is a strong candidate from the same manufacturer in the same SOD882 package. It offers higher voltage (40V) and current (1A) ratings, but you must verify its forward voltage (Vf) is acceptable for your application.