Is there a pin-compatible replacement for CDBVRL140-HF?

No pin-compatible replacements in the same WBFBP-02L package have been identified. All potential alternatives require a PCB layout change.

What risks should I check before replacing CDBVRL140-HF?

Key risks include package incompatibility requiring a new PCB layout, differences in forward voltage (Vf) affecting efficiency, and higher reverse leakage current (Ir) which can impact power consumption.

CDBVRL140-HF Alternatives, Datasheet & Cross Reference | Comchip Technology Co., Ltd.

CDBVRL140-HF is a 40V, 1A Schottky diode in a compact WBFBP-02L package. While no direct replacements were found, functional alternatives with different packages offer varied ratings but require design review.

AI replacement insight

Package riskhigh

No candidates match the WBFBP-02L package, requiring a mandatory PCB redesign.

Electrical riskmedium

Candidates have varying forward voltage and reverse leakage, which could affect circuit efficiency and power consumption.

Sourcing risklow

Multiple functional alternatives from different manufacturers are available, though not as direct replacements.

Can it be replaced directly?

No direct, drop-in replacement for CDBVRL140-HF has been found. All candidates require PCB layout changes due to different packages.

Best replacement path

Functional alternatives like UMW SS510B offer upgraded voltage/current but require a PCB redesign for the SMB package and analysis of the higher forward voltage.

Main risk

The primary risk is the package mismatch, as the target's WBFBP-02L is a very different form factor from the candidates' SMB, SMC, or SOD-123FL packages.

Recommended alternatives

An upgrade in V/I ratings but in a different package (SMB) with higher forward voltage and missing leakage data.

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Alternative comparison matrix

Feature / factor	CDBVRL140-HF	UMW SS26B	UMW SS510B	XBS104S14	Compatibility / risk
Package	WBFBP-02L	SMB	SMB	SOD-123FL	SMB / SOD-123FL — Requires PCB redesign.; UMW SS510B: Requires PCB redesign.; XBS104S14: Requires PCB redesign.
Voltage	40V	60V	100V	40V	60V / 100V / 40V — Higher voltage rating provides more margin.; UMW SS510B: Higher voltage rating provides more margin.; XBS104S14: Matches target, but lacks typical 1.1x safety margin.
Current	1A	2A	5A	1A	2A / 5A / 1A — Higher current rating.; UMW SS510B: Higher current rating.; XBS104S14: Matches target average rectified current.
Forward Voltage	0.55V @ 0.7A	0.7V @ 2A	0.85V @ 3A	-	0.7V @ 2A / 0.85V @ 3A — Higher Vf may reduce efficiency.; UMW SS510B: Potentially higher Vf may reduce efficiency.
Reverse Leakage	50µA @ 40V	Not specified	-	200µA @ 40V	Not specified / 200µA @ 40V — Reverse leakage must be verified from datasheet.; XBS104S14: 4x higher leakage current.
Temperature	-40°C to +125°C	-	-50°C to +150°C	-	-50°C to +150°C — Wider operating temperature range.

Application & sourcing insights

Questions & answers

Parts like UMW SS510B or UMW SS26B offer higher voltage and current ratings but come in a different package (SMB) and have different electrical characteristics. A full design review is required.