The MOC3083S-TA1 from LITEON is the best alternative, offering an upgraded 800V rating in the same package. For other options, the Vishay IL4118 series is functionally similar but requires careful engineering review.
Best Alternatives to MOC3063S-TA1
Finding a substitute for the MOC3063S-TA1 involves matching its zero-crossing function and 6-SMD package. Key alternatives offer higher voltage ratings, providing an upgrade path for your design.
AI replacement insight
Electrical riskhigh
Using a non-zero-crossing part will cause functional failure and potential damage.
Package risklow
Most alternatives are in the same 6-SMD package, but footprint should be confirmed.
Can it be replaced directly?
MOC3083S-TA1 is a potential direct replacement with improved voltage specs. Engineering verification of the pinout is recommended.
Best replacement path
Upgrade to MOC3083S-TA1 for a higher voltage rating from the same manufacturer.
Main risk
The primary risk is selecting a non-zero-crossing optocoupler, which will alter circuit behavior significantly.
Recommended alternatives
Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.
Alternative comparison matrix
| Feature / factor | MOC3063S-TA1 | MOC3083S-TA1 | IL4118-X007 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 6-SMD | 6-SMD | - | 6-SMD — Same package family. | |
| Voltage | 600 V | 800 V | - | 800 V — Higher off-state voltage (VDRM). | |
| Current | 5 mA | 5 mA | - | 2 mA (typ) — Lower trigger current may affect timing. | |
| Temperature | -40°C to +100°C | -40°C to +110°C | - | -40°C to +110°C — Wider operating temperature range. | |
| Interface | Triac (Zero-Cross) | Triac, Zero-Cross | - | Triac, Zero-Cross — Same zero-crossing functionality. | |
| Pinout | 6 | - | 0 | 0 — Pin count data is missing. | |
| Manufacturer | LITEON | - | Vishay | Vishay — Cross-vendor alternative. |