TCLT1600
Vishay Semiconductor Opto Division
Needs validationhigh risk
A parametric alternative with lower VCEO and temperature ratings; pinout and CTR must be checked.
Best Alternatives to TLP785(GB-TP6,F
The Toshiba TLP785(GB-TP6,F is a popular phototransistor optocoupler in a 4-SMD package, featuring 80V VCEO and 5000Vrms isolation. Finding a direct drop-in replacement requires careful verification of electrical parameters and pinout.
AI replacement insight
Electrical riskhigh
Many alternatives have lower VCEO, temperature, or isolation voltage ratings.
Package riskmedium
While many use a similar SOP-4 package, pinout and exact dimensions must be verified.
Firmware risklow
This is a simple analog component with no firmware.
Can it be replaced directly?
Direct replacement for TLP785(GB-TP6,F should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The Würth Elektronik 140817144000 is a strong functional alternative, matching key voltage and temperature ratings. However, its pinout must be verified and its CTR range is slightly different.
Main risk
The primary risk is substituting with a part that has a lower Collector-Emitter Voltage (VCEO), such as the LTV-817 series (35V), which is insufficient compared to the target's 80V.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | TLP785(GB-TP6,F | 140817144000 | TCLT1600 | LTV-817S-TA1-B | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 80V | 80V | 70V | 35V | 80V / 70V / 35V — Collector-Emitter Voltage (VCEO) matches.; TCLT1600: Collector-Emitter Voltage (VCEO) is lower.; LTV-817S-TA1-B: Collector-Emitter Voltage (VCEO) is significantly lower.; LTV-817S-TA1-C: Collector-Emitter Voltage (VCEO) is significantly lower. |
| Ctr | 100-600% | 50-600% | 80-300% | 130-260% | 50-600% / 80-300% / 130-260% / 200-400% — CTR range starts lower than target.; TCLT1600: CTR range is narrower and starts lower.; LTV-817S-TA1-B: CTR is within target range.; LTV-817S-TA1-C: CTR is within target range. |
| Package | 4-SMD, Gull Wing | 4-SMD, Gull Wing | 4-SMD, Gull Wing | 4-pin SMD | 4-SMD, Gull Wing / 4-pin SMD — Package appears to match.; TCLT1600: Package appears to match.; LTV-817S-TA1-B: Package details may differ; target is Gull Wing.; LTV-817S-TA1-C: Package details may differ; target is Gull Wing. |
| Pinout | 4-pin | Unknown | Unknown | - | Unknown — Pin count was not available, pinout unverified.; TCLT1600: Pin count was not available, pinout unverified. |
| Temperature | -55°C to 110°C | -55°C to 110°C | max 100°C | - | -55°C to 110°C / max 100°C — Operating temperature matches.; TCLT1600: Operating temperature range is narrower. |
| Current | 60mA | - | - | 50mA | 50mA — Forward Current (IF) is lower.; LTV-817S-TA1-C: Forward Current (IF) is lower. |
Application & sourcing insights
Questions & answers
Verified drop-in options for TLP785(GB-TP6,F 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.