Is there a pin-compatible replacement for ESDSRVLC05-4?

Several alternatives like SRV05-4 and UDT26A05L05-LC1 use the same SOT-23-6L package. However, pin-for-pin compatibility is not guaranteed and must be confirmed by comparing the pinout diagrams in the respective datasheets before replacement.

What risks should I check before replacing ESDSRVLC05-4?

Before replacing, you must verify three key parameters: 1) Pinout compatibility to ensure correct connections. 2) Clamping Voltage, as a higher value offers less protection. 3) Junction Capacitance, as a higher value can degrade high-speed signal integrity.

ESDSRVLC05-4 Alternatives, Datasheet & Cross Reference | Yint

ESDSRVLC05-4 is a 4-line, 5V low-capacitance ESD protection diode in a SOT-23-6L package. While no direct drop-in is confirmed, several functional alternatives exist, requiring careful review of clamping voltage and capacitance trade-offs.

AI replacement insight

Electrical riskmedium

Most alternatives have higher clamping voltage (weaker protection) or higher capacitance (signal integrity risk).

Package risklow

The SOT-23-6L package is standard, and multiple candidates match the form factor.

Firmware riskmedium

Not applicable for this passive component.

Can it be replaced directly?

No confirmed direct drop-in replacement exists without verifying pinouts. However, several functional alternatives in the same SOT-23-6L package are available, with the primary trade-off being between clamping voltage and capacitance.

Best replacement path

SRV05-4 (from Yangjie) is the most promising, offering excellent capacitance with a manageable increase in clamping voltage. RLST236A054LV is a good option if improved protection is more critical than signal integrity.

Main risk

The main risk is a mismatch in protection level (clamping voltage) or signal integrity (capacitance).

Recommended alternatives

A strong alternative with matching package and voltage, plus lower capacitance, but has a higher clamping voltage.

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Alternative comparison matrix

Feature / factor	ESDSRVLC05-4	SRV05-4	RLST236A054LV	UDT26A05L05-LC1	Compatibility / risk
Package	SOT-23-6L	SOT-23-6L	SOT-23-6L	SOT-23-6L	SOT-23-6L — Package matches, enabling form-factor compatibility.; RLST236A054LV: Package matches.; UDT26A05L05-LC1: Package matches.
Voltage	5.0V	5.0V	5.0V	5.0V	5.0V — Reverse standoff voltage matches.; RLST236A054LV: Reverse standoff voltage matches.; UDT26A05L05-LC1: Reverse standoff voltage matches.
Capacitance	0.9pF	0.6pF	1.5pF	0.8pF	0.6pF / 1.5pF / 0.8pF — Lower capacitance is beneficial for high-speed signals.; RLST236A054LV: Higher capacitance may degrade high-speed signal integrity.; UDT26A05L05-LC1: Capacitance is a very close match and slightly better.
Clamping Voltage	12V	15V	10V	16V @ 5A	15V / 10V / 16V @ 5A — Higher clamping voltage offers weaker protection. Must be verified for system tolerance.; RLST236A054LV: Lower clamping voltage offers stronger protection.; UDT26A05L05-LC1: Significantly higher clamping voltage offers weaker protection.

Application & sourcing insights

Questions & answers

The SRV05-4 from Yangjie is a strong candidate, offering a better capacitance (0.6pF vs 0.9pF) with a slightly higher clamping voltage. For better protection, consider RLST236A054LV, which has a lower clamping voltage but higher capacitance.