TRIACs

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Triac Type	Voltage - Off State	Current - On State (It (RMS)) (Max)	Voltage - Gate Trigger (Vgt) (Max)	Current - Non Rep. Surge 50, 60Hz (Itsm)	Current - Gate Trigger (Igt) (Max)	Current - Hold (Ih) (Max)	Configuration	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
BT136-600E,127 TRIAC SENS GATE 600V 4A TO220AB WeEn Semiconductors	13,756 In Stock	1 : £0.79000 Tube	-	Tube	Active	Logic - Sensitive Gate	600 V	4 A	1.5 V	25A, 27A	10 mA	15 mA	Single	125°C (TJ)	Through Hole	TO-220-3	TO-220AB
BT137-600E,127 TRIAC SENS GATE 600V 8A TO220AB WeEn Semiconductors	5,603 In Stock	1 : £0.84000 Tube	-	Tube	Active	Logic - Sensitive Gate	600 V	8 A	1.5 V	65A, 71A	10 mA	20 mA	Single	125°C (TJ)	Through Hole	TO-220-3	TO-220AB
BT139-600E,127 TRIAC SENS GATE 600V 16A TO220AB WeEn Semiconductors	4,021 In Stock	1 : £1.14000 Tube	-	Tube	Active	Logic - Sensitive Gate	600 V	16 A	1.5 V	155A, 170A	10 mA	45 mA	Single	125°C (TJ)	Through Hole	TO-220-3	TO-220AB
BTA425Z-800BTQ TRIAC SENS GATE 800V 25A TO3P WeEn Semiconductors	0 In Stock	1 : £2.35000 Tube	BT	Tube	Active	Logic - Sensitive Gate	800 V	25 A	1.3 V	250A, 275A	50 mA	75 mA	Single	150°C (TJ)	Through Hole	TO-3P-3, SC-65-3	TO-3P

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Thyristors conduct AC (alternating current) in one direction or one half of an AC cycle. A TRIAC (triode AC) conducts current in either direction when its gate is triggered. Other names include bidirectional triode thyristor or bilateral triode thyristor. TRIAC types are snubberless, alternistor, internally triggered, logic gate and standard which are chassis, surface or through-hole mount. Selection is by off state voltage, on state current, hold current and gate trigger voltage.