SST12B-800CW vs CQ220-6DS TIN/LEAD
| Part Number |
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| Category | Thyristors - TRIACs | Thyristors - TRIACs |
| Manufacturer | SMC Diode Solutions | Central Semiconductor Corp |
| Description | 800V 12A PACKAGE TO-220B 3-QUADR | THROUGH-HOLE-TRIAC |
| Package | -Reel® | Tube |
| Series | SST12 | - |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 110°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-3 | TO-220-3 |
| Supplier Device Package | TO-220B | TO-220-3 |
| Configuration | Single | Single |
| Current - Hold (Ih) (Max) | 40 mA | 15 mA |
| Voltage - Off State | 800 V | 400 V |
| Voltage - Gate Trigger (Vgt) (Max) | 1.3 V | 1.5 V |
| Current - Gate Trigger (Igt) (Max) | 35 mA | 5 mA |
| Current - On State (It (RMS)) (Max) | 12 A | 6 A |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | 120A @ 50Hz | 60A @ 50Hz |
| Triac Type | Standard | Standard |
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1. What are the main uses of TRIACs?
TRIACs are commonly used in phase control applications like light dimmers, motor speed controls, and heaters, as well as in domestic appliances where bidirectional AC control is needed.
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2. Why are TRIACs preferred in household electronics?
TRIACs are compact, cost-effective, and capable of handling bidirectional current, making them ideal for small, lightweight, and reliable household devices.
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3. How does dv/dt affect TRIAC performance?
A high rate of voltage change (dv/dt) across the TRIAC can unintentionally trigger it. Snubber circuits are used to limit dv/dt and ensure reliable operation.
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4. What are the key parameters to consider when selecting a TRIAC?
Important factors include voltage and current ratings, dv/dt capability, gate sensitivity, and application-specific requirements like power dissipation and thermal management.
