
Toshiba
A strong alternative in the same family and package, with a wider CTR range that needs review.
Find and compare replacements for the Toshiba TLP383(GR-TPL,E) optocoupler. This page analyzes pin-compatible alternatives, functional equivalents, and cross-vendor options, highlighting key differences in temperature range, CTR, and package.
CTR differences in alternatives require circuit validation.
Several alternatives share the same SO6L package.
Multiple alternatives exist within the same manufacturer family.
Direct replacement for TLP383(GR-TPL,E should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Use TLP383(D4GL-TR,E) for a near-identical match, but validate the wider CTR. If unavailable, consider TLP385(GR-TPL,E) but confirm the lower 110°C temperature is acceptable.
The primary risk is a mismatch in Current Transfer Ratio (CTR) or a lower maximum operating temperature, which could lead to circuit instability or failure in demanding environments.

Toshiba
A strong alternative in the same family and package, with a wider CTR range that needs review.
| Feature / factor | TLP383(GR-TPL,E | TLP383(D4GL-TR,E | TLP385(GR-TPL,E | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4-pin SO6L | 4-pin SO6L | 4-pin SO6L | 4-pin SO6L — Package matches target.; TLP385(GR-TPL,E: Package matches target. | |
| Voltage | 80 V | 80 V | - | 80 V — Collector-Emitter Voltage matches. | |
| Temperature | -55°C to 125°C | -55°C to 125°C | -55°C to 110°C | -55°C to 125°C / -55°C to 110°C — Operating temperature range matches.; TLP385(GR-TPL,E: Max operating temperature is lower. | |
| Ctr | 100% to 300% | 50% to 600% | 100% - 300% (est.) | 50% to 600% / 100% - 300% (est.) — Wider CTR range, may require circuit validation.; TLP385(GR-TPL,E: GR bin matches target's CTR. | |
| Manufacturer | Toshiba | - | Toshiba | Toshiba — From the same manufacturer. |
Verified drop-in options for TLP383(GR-TPL,E are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.