Thyristors - TRIACs
Thyristors - TRIACs: Precision Power Control Components
Definition & Functionality
Thyristors - TRIACs (Triode for Alternating Current) are critical semiconductor devices within the Discrete Semiconductor Products category, designed for efficient AC power control. TRIACs function as bidirectional switches, enabling current flow in both directions when triggered, making them ideal for phase-cutting, motor speed regulation, and dimming applications. Their ability to handle high voltage/current with minimal gate control simplifies circuit design in AC systems.
Product Types & Variations
This category includes:
1. Standard TRIACs: General-purpose devices for moderate load control (e.g., household appliances).
2. Snubberless TRIACs: Eliminate the need for external snubber circuits, reducing EMI in inductive loads (e.g., motors).
3. Logic-Level TRIACs: Low gate-triggering current ( 10mA) for microcontroller compatibility.
4. High-Temp TRIACs: Rated for industrial environments (up to 150 C junction temperature).
Key specifications include voltage ratings (400V 1200V), current ratings (4A 40A), and gate sensitivity (IGT).
Purchasing Guidance
1. Match Load Requirements: Select voltage/current ratings 20 30% above operational peaks to ensure reliability.
2. Consider Triggering Method: Opt for snubberless TRIACs for inductive loads (e.g., HVAC systems) to reduce component count.
3. Thermal Management: Verify thermal resistance (R JA) and pair with heatsinks for high-current applications.
4. Compliance: Prioritize UL/IEC-certified TRIACs for safety-critical designs.
TRIACs bridge cost-efficiency and performance in AC power control. Partner with trusted distributors to access datasheets and lifecycle support.
Filter and sort
Categories
BT139B-800G,118
TRIAC 800V 16A D2PAK
Q4025R5TP
TRIAC 400V 25A 50 50 50 MA TO220
SST130U-600D
600V 0.8A TO-92 3-QUAD TRIAC
ACS108-8SN-TR
TRIAC LOGIC 800V 800MA SOT223
BTA12-600BRG
TRIAC 600V 12A TO220AB
QJ8016RH4TP
TRIAC 800V 16A TO-220R
QJ4016LH6TP
ALTERNISTOR TRIAC 16A TO220
Q4012NH5RP
TRIAC ALTERNISTOR 400V 12A TO263
T6420E
ISOLATED STUD TO48 40 AMP TRIAC
Q8016NH3TP
TRIAC ALTERNISTOR 800V 16A TO263
NTE56026
TRIAC 600V 40A TO 48 ISOL STUD
SST12B-800CW
800V 12A PACKAGE TO-220B 3-QUADR
BT138X-600G,127
NOW WEEN - BT138X-600G - 4 QUADR
QJ6040KH5TP
TRIAC 600V 40A TO-218AC
L4004V3TP
TRIAC SENS GATE 400V 4A TO251
QJ6016RH6TP
ALTERNISTOR TRIAC 16A TO220
SST20B-600BW
600V 20A PACKAGE TO-220B 3-QUADR
BCR3KM-12LA-1A8#X3
INSULATED TRIAC, 600V, 3A
QJ8010L4TP
TRIAC 800V 10A TO220
Q8040K5TP
TRIAC ALTERNISTOR 800V 40A TO218