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.
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QK012LH5TP
TRIAC ALTERNISTOR 1KV 12A TO220
QJ8016NH4RP
TRIAC 800V 16A TO-263 D2-PAK
QJ8012LH4TP
TRIAC 800V 12A TO-220L
QJ6008DH3RP
TRIAC ALT 8A 600V TO-252 D-PAK
BTA316B-600C,118
TRIAC 600V 16A D2PAK
LJ6008D8TP
TRIAC ALT 8A 600V TO-252 D-PAK
BTA08-800CW3G
TRIAC 800V 8A TO220AB
QJ4006DH4RP
TRIAC ALT 6A 400V TO-252 D-PAK
OT407412
4 QUADRANT TRIAC TO 92
L4004V8TP
TRIAC SENS GATE 400V 4A TO251
Q6012RH1LEDTP
TRIAC ALTERNISTOR 600V 12A TO220
Q4015N5RP
TRIAC 400V 15A TO263
ACST1235-8FP
TRIAC 800V 12A TO-220FPAB
Q4015L5TP
TRIAC 400V 15A TO220
MAC16CM
TRIAC 600V 16A TO220AB
MAC97A6,116
TRIAC SENS GATE 400V 0.6A TO92-3
BT139-800,127
TRIAC 800V 16A TO220AB
Q6008RH1LEDTP
TRIAC 600V 8A TO220
NTE5681
TRIAC 50V 25A TO48
QJ4006DH3RP
TRIAC ALT 6A 400V TO-252 D-PAK