Is there a pin-compatible replacement for GAQY212GSX?

GAQY212G2S, GAQY212GS, and GAQY215G1S all use the same SOP-4 package and are from the same manufacturer, making them highly likely to be pin-compatible. However, you must verify the pinout in the datasheets before integration.

What risks should I check before replacing GAQY212GSX?

Before replacing GAQY212GSX, verify the substitute's load current and on-resistance. Some alternatives are downgrades and may not support your application's power requirements. Always confirm the pinout is identical using the datasheets.

GAQY212GSX Alternatives, Datasheet & Cross Reference | SUPSiC

The SUPSiC GAQY212GSX is a 60V, 1.0A solid-state relay in a SOP-4 package. Several alternatives from the same manufacturer are available, including direct upgrades with improved performance and potential downgrades that require careful review.

AI replacement insight

Electrical risklow

Upgrade paths (GAQY212G2S, GAQY215G1S) have low electrical risk. Downgrades require careful analysis of load conditions.

Package risklow

All viable candidates share the same SOP-4 package, but pinout should be confirmed via datasheet comparison.

Can it be replaced directly?

There is no exact cross, but GAQY212G2S is a strong candidate for an upgrade path, offering better performance in the same package.

Best replacement path

Upgrade to GAQY212G2S or GAQY215G1S for improved performance. Both are from the same manufacturer and offer higher current and lower on-resistance.

Main risk

The primary risk involves selecting a downgrade like GAQY212GS, which has a lower current rating (0.8A vs 1.0A) and could fail in applications operating near the target's limit.

Recommended alternatives

A strong upgrade from the same manufacturer with higher current and lower on-resistance.

View details

Alternative comparison matrix

Feature / factor	GAQY212GSX	GAQY212G2S	GAQY215G1S	GAQY212GS	Compatibility / risk
Package	SOP-4	SOP-4	SOP-4	SOP-4	SOP-4 — Same package and pin count.; GAQY215G1S: Same package and pin count.; GAQY212GS: Same package and pin count.
Voltage	2500 Vrms	2500 Vrms	100 V	60 V	2500 Vrms / 100 V / 60 V — Isolation voltage matches.; GAQY215G1S: Higher load voltage rating provides more margin.; GAQY212GS: Load voltage matches.
Current	1.0 A	1.8 A	1.25 A	0.8 A	1.8 A / 1.25 A / 0.8 A — Higher load current capability.; GAQY215G1S: Higher load current capability.; GAQY212GS: Slightly lower load current. Verify application requirements.
Resistance	0.18 Ω	0.068 Ω	0.13 Ω	0.24 Ω	0.068 Ω / 0.13 Ω / 0.24 Ω — Lower on-resistance, improved efficiency.; GAQY215G1S: Lower on-resistance, improved efficiency.; GAQY212GS: Slightly higher on-resistance. May increase power dissipation.

Application & sourcing insights

Questions & answers

The best alternatives are GAQY212G2S and GAQY215G1S. Both are upgrades from the same manufacturer, offering higher current handling and lower on-resistance in the same SOP-4 package.