Is there a pin-compatible replacement for V26MLA1206NH?

Yes, several 1206 package varistors are pin-compatible, including V33MLA1206NH, V42MLA1206NH, and MVR1206-330G. However, pin compatibility does not guarantee electrical compatibility; key parameters like clamping voltage and surge current differ significantly.

What risks should I check before replacing V26MLA1206NH?

The main risks are using a substitute with a higher clamping voltage (e.g., V33MLA1206NH), which may not protect your circuit, or one with a lower surge current rating (e.g., MVR1206-330G), which could fail prematurely. Always verify these parameters.

V26MLA1206NH Alternatives, Datasheet & Cross Reference | Littelfuse

Finding a replacement for the V26MLA1206NH varistor requires careful comparison of clamping voltage and surge current ratings. While form-fit alternatives exist, critical electrical differences pose risks that demand engineering review.

AI replacement insight

Electrical riskhigh

Candidates have higher clamping voltages or lower surge ratings.

Package risklow

All candidates use the same 1206 package.

Can it be replaced directly?

No direct, risk-free replacement for V26MLA1206NH was identified. All candidates have significant electrical differences in clamping voltage or surge current that require engineering review.

Best replacement path

Evaluate MVR1206-330G if the application can tolerate a lower 100A surge rating; otherwise, a redesign may be needed as no direct 1:1 replacement was found.

Main risk

The primary risk is mismatch in clamping voltage or surge current, which can lead to either inadequate circuit protection or premature component failure.

Recommended alternatives

A cross-vendor option with matching working voltage, but a lower surge current rating presents a significant downgrade risk.

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Alternative comparison matrix

Feature / factor	V26MLA1206NH	MVR1206-330G	V33MLA1206NH	V42MLA1206NH	Compatibility / risk
Package	1206	1206	1206	1206	1206 — Form factor is identical.; V33MLA1206NH: Form factor is identical.; V42MLA1206NH: Form factor is identical.
Voltage	60V	54V	75V	92V	54V / 75V / 92V — Lower clamping voltage offers better protection.; V33MLA1206NH: Higher clamping voltage exposes circuit to more stress.; V42MLA1206NH: Significantly higher clamping voltage exposes circuit to higher stress.
Current	150A	100A	180A	180A	100A / 180A — Lower surge current rating is a critical downgrade.; V33MLA1206NH: Higher surge current capability.; V42MLA1206NH: Higher surge current capability.
Manufacturer	Littelfuse	DOWOSEMI	-	-	DOWOSEMI — Cross-vendor alternative.
Capacitance	630pF	-	-	345pF	345pF — Lower capacitance may be beneficial for signal integrity.

Application & sourcing insights

Questions & answers

MVR1206-330G from DOWOSEMI matches the 26V working voltage and has a better clamping voltage, but its lower surge current rating (100A vs 150A) is a significant downgrade that must be evaluated for the application.