Is there a pin-compatible replacement for AZ5825-01F.R7GR?

While several TVS diodes like ASB05DF and SP0402B-ULC-01ETG use the same 0402/DFN1006 package, they are not electrically equivalent. They have significantly lower surge current ratings, making them a high-risk replacement without a full circuit analysis.

What risks should I check before replacing AZ5825-01F.R7GR?

The most critical parameters to verify are: 1) Peak Pulse Current (Ipp), which should be at least 18A. 2) Clamping Voltage (Vc), which should be at or below 9.5V under a similar surge condition. 3) Capacitance, if used on a high-speed line. Using a part with weaker specs can cause protection failure.

AZ5825-01F.R7GR Alternatives, Datasheet & Cross Reference | AMAZING Microelectronic Corp.

Q: What is the best alternative to AZ5825-01F.R7GR?

Currently, no ideal 1-to-1 alternative exists. Parts like SP0402B-ULC-01ETG match the package but have weaker protection, suitable only for less demanding applications after review. The best path is to analyze circuit protection needs and select a part that meets or exceeds the original's clamping and surge ratings.

AZ5825-01F.R7GR is a 5V bidirectional TVS diode in a compact 0402 DFN package, designed for robust ESD and surge protection. Finding a direct drop-in replacement requires careful matching of clamping voltage and peak current ratings.

AI replacement insight

Electrical riskhigh

Substitutes have much weaker surge current and clamping specs.

Package risklow

Form-factor compatible candidates in 0402 DFN are available.

Sourcing riskmedium

Finding an electrically equivalent part may be difficult.

Can it be replaced directly?

There are no confirmed direct, pin-to-pin replacements for AZ5825-01F.R7GR. While some parts share the 0402 package and 5V rating, they fail to match the critical 18A peak pulse current and low clamping voltage.

Best replacement path

No direct drop-in replacements were found. Candidates offer a similar package but have significantly weaker surge protection. A full engineering review of circuit requirements is required.

Main risk

The primary risk is using a substitute with inadequate surge protection (lower peak current or higher clamping voltage), which could lead to downstream circuit damage.

Recommended alternatives

Form-factor compatible with much lower capacitance, but offers weaker surge protection. Requires careful engineering review.

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Alternative comparison matrix

Feature / factor	AZ5825-01F.R7GR	SP0402B-ULC-01ETG	ASB05DF	Compatibility / risk
Package	0402 DFN	0402 DFN / DFN1006	0402 (DFN-2L)	0402 DFN / DFN1006 / 0402 (DFN-2L) — Package is compatible.; ASB05DF: Package is compatible.
Voltage	5.0 V	5.0 V	5.0 V	5.0 V — Working voltage matches.; ASB05DF: Working voltage matches.
Current	18.0 A	Implied < 5A	5 A	Implied < 5A / 5 A — Significantly lower surge current capability.; ASB05DF: Peak pulse current is less than a third of the target.
Clamping Voltage	9.5V @ 18A	12V @ 1A	-	12V @ 1A — Clamping voltage is much higher, offering less protection.
Capacitance	30 pF	0.3 pF	15 pF	0.3 pF / 15 pF — Ultra-low capacitance is a major upgrade for high-speed lines.; ASB05DF: Lower capacitance is an improvement.

Application & sourcing insights

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