Is there a pin-compatible replacement for V5.5MLA0603NH?

Yes, parts like Sunlord SDV1608E5R5C500NPTF and Panasonic EZJP1V120KA are pin-compatible in the same 0603 package. However, their electrical characteristics are not identical and must be reviewed.

What risks should I check before replacing V5.5MLA0603NH?

The main risk is a lower surge current rating, which could compromise circuit protection. Also check for differences in capacitance and clamping voltage, as these can affect circuit performance and protection level.

V5.5MLA0603NH Alternatives, Datasheet & Cross Reference | Littelfuse

V5.5MLA0603NH is a 5.5V 0603 multilayer varistor from Littelfuse. While pin-compatible alternatives exist, they often have lower surge current ratings, requiring careful engineering review before substitution.

AI replacement insight

Electrical riskhigh

Candidates have 33-67% lower surge current ratings.

Package risklow

All considered alternatives are in the same 0603 package.

Can it be replaced directly?

No direct drop-in replacement was identified. Several candidates match the package and voltage but have a lower surge current rating, which requires careful engineering review.

Best replacement path

parametric_relaxed

Main risk

The primary risk is the lower surge current rating of alternatives, which could lead to device failure in applications experiencing high electrical transients.

Recommended alternatives

A 0603 varistor with a similar voltage rating, but lower surge current handling and a narrower operating temperature range.

View details

Alternative comparison matrix

Feature / factor	V5.5MLA0603NH	EZJP1V120KA	SDV1608E5R5C500NPTF	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric) — Form factor matches.; SDV1608E5R5C500NPTF: Form factor matches.
Voltage	5.5V	6.7V	5.5V	6.7V / 5.5V — Maximum DC working voltage is slightly higher, which is safe.; SDV1608E5R5C500NPTF: Maximum DC working voltage matches.
Current	30A	20A	10A	20A / 10A — Peak surge current is lower.; SDV1608E5R5C500NPTF: Peak surge current is significantly lower.
Capacitance	960pF	330pF	50pF	330pF / 50pF — Capacitance is significantly lower.; SDV1608E5R5C500NPTF: Capacitance is drastically lower, may affect filtering.
Temperature	-55°C to 125°C	-40°C to 85°C	-	-40°C to 85°C — Operating temperature range is narrower.
Varistor Voltage	7.1V-9.3V	-	10V-14V	10V-14V — Varistor voltage range is higher.

Application & sourcing insights

Questions & answers

Panasonic's EZJP1V120KA is a potential alternative, but it has a lower surge current rating (20A vs 30A) and requires engineering validation. No direct drop-in replacement has been identified.