Is there a pin-compatible replacement for PS2805-1-F3-A?

No confirmed pin-for-pin replacement is available. Parts in the same package, like the TCMT110x series, are not electrically equivalent and pose a downgrade risk.

What risks should I check before replacing PS2805-1-F3-A?

Verify the substitute's Collector-Emitter Voltage (VCEO), max collector current (Ic), and Current Transfer Ratio (CTR) meet your circuit's needs. The target's 80V VCEO and 80mA Ic are higher than many alternatives.

PS2805-1-F3-A Alternatives, Datasheet & Cross Reference | Renesas Electronics Corporation

Finding a substitute for the Renesas PS2805-1-F3-A optocoupler requires matching its compact SSOP-4 package and key electrical ratings like 80V VCEO and 80mA collector current.

AI replacement insight

Electrical riskhigh

Most alternatives have lower VCEO and collector current ratings.

Package risklow

Alternatives in the same SSOP-4 package are available.

Sourcing riskmedium

Target is active, but alternatives may offer better availability or pricing.

Can it be replaced directly?

No direct drop-in replacement has been identified. While some parts share the SSOP-4 package, they have lower voltage or current ratings, posing a high risk.

Best replacement path

Review candidates in the same SSOP-4 package, like the Vishay TCMT1100 series, but you must perform careful engineering analysis due to their lower VCEO and collector current ratings.

Main risk

The primary risk is electrical overstress from using a substitute with a lower Collector-Emitter Voltage (VCEO) or collector current (Ic) rating.

Recommended alternatives

Shares the same SSOP-4 package but has lower electrical ratings (VCEO, Ic). Engineering validation is essential.

View details

Alternative comparison matrix

Feature / factor	PS2805-1-F3-A	TCMT1100	TCMT1109	Compatibility / risk
Package	SSOP-4	SSOP-4	SSOP-4	SSOP-4 — Package is form-factor compatible.; TCMT1109: Package is form-factor compatible.
Voltage	2500Vrms	3750Vrms	3750Vrms	3750Vrms — Candidate has higher isolation voltage.; TCMT1109: Candidate has higher isolation voltage.
Current	80mA	50mA	50mA	50mA — Candidate collector current is lower.; TCMT1109: Candidate collector current is lower.
Ctr	80-600%	50-600%	200-400%	50-600% / 200-400% — CTR range is comparable but starts lower.; TCMT1109: CTR range is narrower.

Application & sourcing insights

Questions & answers

The Vishay TCMT1100 and TCMT1109 are potential alternatives in the same SSOP-4 package, but they have lower voltage/current ratings and require engineering validation.