BT138-800E/DG127 vs MAC223A6FP
| Part Number |
|
|
| Category | Thyristors - TRIACs | Thyristors - TRIACs |
| Manufacturer | NXP USA Inc. | ON Semiconductor |
| Description | 4 QUADRANT TRIAC TO 220AB | THYRISTOR TRIAC 400V 250A |
| Package | Bulk | Bulk |
| Series | - | - |
| Operating Temperature | - | - |
| Mounting Type | - | - |
| Package / Case | - | - |
| Supplier Device Package | - | - |
| Configuration | - | - |
| Current - Hold (Ih) (Max) | - | - |
| Voltage - Off State | - | - |
| Voltage - Gate Trigger (Vgt) (Max) | - | - |
| Current - Gate Trigger (Igt) (Max) | - | - |
| Current - On State (It (RMS)) (Max) | - | - |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | - | - |
| Triac Type | - | - |
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1. What is a TRIAC, and how does it differ from an SCR?
A TRIAC is a bidirectional device that can control AC power, effectively working as two SCRs in parallel but in opposite directions. Unlike an SCR, which only conducts in one direction, a TRIAC operates in both directions, making it ideal for AC applications.
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2. How can flickering in TRIAC circuits be minimized?
Flickering can be addressed by proper circuit design, including snubber circuits to handle dv/dt issues and filtering to reduce noise and harmonics.
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3. 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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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.

