TLP290-4(TP,E
Toshiba Semiconductor and Storage
Needs validationmedium risk
Pin-compatible alternative with a lower minimum CTR. Verify circuit tolerance to a 50% minimum CTR.
Best Alternatives to TLP290-4(GB-TP,E
Find the best replacement for the Toshiba TLP290-4(GB-TP,E) optocoupler. This guide analyzes pin-compatible upgrades and alternatives, highlighting critical differences in input type and CTR.
AI replacement insight
Electrical riskhigh
Input type (AC/DC vs DC) and CTR must be verified to avoid circuit failure.
Package risklow
All recommended alternatives are in the same SO-16 package.
Can it be replaced directly?
Yes, TLP292-4(V4GBTRE) is a pin-compatible upgrade. For a cost-sensitive option, TLP290-4(TP,E) is the same base part but requires checking CTR tolerance.
Best replacement path
TLP292-4(V4GBTRE) is the best replacement, offering a pin-compatible upgrade in voltage and temperature with a matching CTR.
Main risk
The primary risk is selecting a DC-only input part (like TLP291-4) for an AC application. The second risk is a mismatch in Current Transfer Ratio (CTR).
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | TLP290-4(GB-TP,E | TLP292-4(V4GBTRE | TLP290-4(TP,E | TLP291-4(GB-TP,E) | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC — Package matches, pinout is compatible.; TLP290-4(TP,E: Package and pinout are identical.; TLP291-4(GB-TP,E): Package matches, pinout is compatible. |
| Voltage | 2500Vrms | 3750Vrms | 2500Vrms | 2500Vrms | 3750Vrms / 2500Vrms — Higher isolation voltage provides increased safety margin.; TLP290-4(TP,E: Isolation voltage matches.; TLP291-4(GB-TP,E): Isolation voltage matches. |
| Temperature | -55°C to 110°C | -55°C to 125°C | - | - | -55°C to 125°C — Wider operating temperature range. |
| Ctr | 100% min (GB Rank) | 100% min | 50% min | 100% min (GB Rank) | 100% min / 50% min / 100% min (GB Rank) — Minimum Current Transfer Ratio matches target's GB rank.; TLP290-4(TP,E: Lower minimum CTR may affect circuit performance.; TLP291-4(GB-TP,E): CTR rank matches target. |
| Input Type | AC, DC | AC/DC | AC/DC | DC only | AC/DC / DC only — Matches target's AC/DC input capability.; TLP290-4(TP,E: Matches target's AC/DC input capability.; TLP291-4(GB-TP,E): Candidate does not support AC input. |
Application & sourcing insights
Questions & answers
The best alternative is TLP292-4(V4GBTRE). It is a pin-compatible upgrade with higher isolation voltage (3750Vrms), a wider temperature range (to 125°C), and the same AC/DC input and CTR as the original.