Needs validationlow risk
Electrically identical but in a through-hole DIP package instead of surface-mount.
Best Alternatives to TLP785GB-S(UMW)
Finding a substitute for the UMW TLP785GB-S optocoupler involves matching its 80V VCEO, wide CTR, and DIP-4 package. Alternatives exist but may require checking lead forming or accepting lower voltage ratings.
AI replacement insight
Package riskmedium
Target is SMD, many alternatives are through-hole or different SMD footprints, requiring PCB layout verification.
Electrical riskhigh
Many potential substitutes have lower VCEO, current, or temperature ratings that must be checked against application requirements.
Can it be replaced directly?
No direct, drop-in replacement from another manufacturer is confirmed. The UMW TLP785GB is the same base part but in a through-hole package, not the target's surface-mount form.
Best replacement path
The UMW TLP785GB is the most direct path, differing only in lead forming. If a PCB change is possible, the Toshiba TLP383 offers similar electrical performance in an SO6L package.
Main risk
The primary risk is mechanical incompatibility due to package differences (SMD vs. through-hole) and electrical stress from candidates with lower voltage or temperature ratings.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | TLP785GB-S(UMW) | TLP785GB(UMW) | TLP383(GR-TPL,E | TLP621GB-1(UMW) | Compatibility / risk |
|---|---|---|---|---|---|
| Package | DIP-4 (Surface-Mount) | DIP-4 (Through-Hole) | 4-pin SO6L | DIP-4 | DIP-4 (Through-Hole) / 4-pin SO6L — Target is the surface-mount (gull-wing) version of the same part.; TLP383(GR-TPL,E: Requires different PCB layout.; TLP621GB-1(UMW): Package and pinout are compatible.; TLP620(GB,F): Package and pinout are compatible. |
| Voltage | 80 V | 80 V | 80 V | 55 V | 80 V / 55 V — Collector-Emitter Voltage (VCEO) matches.; TLP383(GR-TPL,E: Collector-Emitter Voltage (VCEO) matches.; TLP621GB-1(UMW): Lower Collector-Emitter Voltage (VCEO).; TLP620(GB,F): Lower Collector-Emitter Voltage (VCEO). |
| Ctr | 100% - 600% | 100% - 600% | 100% - 300% | 100% - 600% | 100% - 600% / 100% - 300% — Current Transfer Ratio (CTR) rank matches.; TLP383(GR-TPL,E: CTR range is a subset of the target's range.; TLP621GB-1(UMW): Current Transfer Ratio (CTR) rank matches. |
| Temperature | -55°C to 110°C | -55°C to 110°C | -55°C to 125°C | -55°C to 100°C | -55°C to 110°C / -55°C to 125°C / -55°C to 100°C — Operating temperature range matches.; TLP383(GR-TPL,E: Wider operating temperature range.; TLP621GB-1(UMW): Reduced maximum operating temperature.; TLP620(GB,F): Reduced maximum operating temperature. |
| Interface | DC | - | - | - | AC, DC — Supports AC input, while target is DC only. |
Application & sourcing insights
Questions & answers
The TLP785GB(UMW) is the closest alternative, being the through-hole version of the same part. For a different manufacturer, the Toshiba TLP383 is a strong functional match but in a different (SO6L) package.