Q Series Switching Thyristors

Littelfuse Q Series Switching Thyristors are bidirectional, solid-state protection devices designed to handle loads from 0.8A to 40ARMS with 10mA, 25mA, and 50mA IGT in operating Quadrants I, II, III, and IV. Littelfuse developed the Q Series Switching Thyristors for a wide range of AC applications to control AC power either through full-cycle switching or phase control of current to the load element. Q Series devices are rated to block voltage in the OFF condition from 200V minimum with selected products capable of 1000V operation. Internally-constructed, isolated packages are available for ease of heat sinking with highest isolation voltage.

Results: 344
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
On-State RMS Current - It RMS
Non Repetitive On-State Current
Rated Repetitive Off-State Voltage VDRM
Off-State Leakage Current @ VDRM IDRM
On-State Voltage
Holding Current Ih Max
Gate Trigger Voltage - Vgt
Gate Trigger Current - Igt
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
Packaging
Littelfuse Triacs 400V 12A
Datasheet
384In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx12xHx 12 A 110 A, 120 A 400 V 10 uA 1.6 V 50 mA 1.3 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs Triac 600V 4A 25-25-25 mA
Datasheet
364In Stock
Min.: 1
Mult.: 1

Qxx04xx 4 A 46 A, 55 A 600 V 10 uA 1.6 V 30 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C Through Hole TO-220-2 Tube
Littelfuse Triacs 600V 6A 50-50-50mA
Datasheet
320In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx06xx 6 A 65 A, 80 A 600 V 50 uA 1.6 V 50 mA 2.5 V 50 mA, 75 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 600V 6A 35-35-35mA
Datasheet
10In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx06xxH 6 A 80 A, 85 A 600 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 600V 12A 50-50-50mA
Datasheet
78In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx12xHx 12 A 100 A, 120 A 600 V 10 uA 1.6 V 50 mA 1.3 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 600V 15A 33/43V
Datasheet
485In Stock
Min.: 1
Mult.: 1

QxxxxLTx 15 A 167 A, 200 A 600 V 10 uA 1.6 V 70 mA 1.5 A - 40 C + 125 C Through Hole TO-220-2 Tube
Littelfuse Triacs 600V 15A 50-50-50mA
Datasheet
597In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx15xx 15 A 167 A, 200 A 600 V 5 uA 1.6 V 70 mA 2.5 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 600V 25A 80-80-80mA
Datasheet
499In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx25xxHx 25 A 208 A, 250 A 600 V 10 uA 1.8 V 100 mA 2.5 V 80 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 800V 15A
Datasheet
567In Stock
1,000Expected 04/05/2026
Min.: 1
Mult.: 1

Qxx15xx 15 A 167 A, 200 A 800 V 5 uA 1.6 V 70 mA 2.5 V 50 mA - 40 C + 125 C Through Hole TO-220-2 Tube
Littelfuse Triacs 800V 15A 50-50-50mA
Datasheet
144In Stock
500Expected 04/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx15xx 15 A 167 A, 200 A 800 V 5 uA 1.6 V 70 mA 2.5 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 400V 4A 25-25-25mA
Datasheet
713In Stock
Min.: 1
Mult.: 1

Qxx04xx 4 A 46 A, 55 A 400 V 10 uA 1.6 V 30 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C Through Hole TO-251-3 Tube
Littelfuse Triacs 400V 8A
Datasheet
715In Stock
Min.: 1
Mult.: 1

Qxx08xHx 8 A 80 A, 85 A 400 V 10 uA 1.6 V 15 mA 1.3 V 10 mA - 40 C + 125 C SMD/SMT TO-252-3 Tube
Littelfuse Triacs 400V 1A 25-25-25mA
Datasheet
286In Stock
Min.: 1
Mult.: 1

Qx01E 1 A 16.7 A, 20 A 400 V 5 uA 1.6 V 15 mA 2.5 V 25 mA, 50 mA - 65 C + 125 C Through Hole TO-92 Bulk
Littelfuse Triacs Altnstr 400V 25A Iso 80-80-80 mA
Datasheet
112In Stock
Min.: 1
Mult.: 1

Qxx25xx 25 A 208 A, 250 A 400 V 10 uA 1.8 V 100 mA 2.5 V 80 mA - 40 C + 125 C Through Hole SMTO-218 Tube
Littelfuse Triacs 400V 1A 10-10-10mA
Datasheet
83In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

QxNx 1 A 16.7 A, 20 A 400 V 5 uA 1.6 V 15 mA 2 V 10 mA, 25 mA - 40 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 600V 8A 10-10-10mA
Datasheet
64In Stock
Min.: 1
Mult.: 1

Qxx08xHx 6 A 55 A, 65 A 600 V 10 uA 1.6 V 15 mA 1.3 V 10 mA - 40 C + 125 C SMD/SMT TO-252-3 Tube
Littelfuse Triacs Altnstr 600V 25A Iso 80-80-80 mA
Datasheet
126In Stock
Min.: 1
Mult.: 1
Qxx25xx 25 A 208 A, 250 A 600 V 10 uA 1.8 V 100 mA 2.5 V 80 mA - 40 C + 125 C Through Hole SMTO-218 Tube
Littelfuse Triacs TRIAC TO263 800V 10A ALTERN
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

Qxx10xHx 10 A 100 A, 120 A 400 V to 1 kV 10 uA 1.6 V 10 mA 1.3 V 5 mA - 40 C + 125 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO220 800V 6A HT STD
Datasheet
16In Stock
Min.: 1
Mult.: 1

QJxx06xx 6 A 100 A, 120 A 400 V to 800 V 10 uA 1.4 V 50 mA 1.3 V 50 mA - 40 C + 150 C Through Hole TO-220-3 Tube
Littelfuse Triacs TRIAC TO263 800V 6A HT STD
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

QJxx06xx 6 A 100 A, 120 A 400 V to 800 V 10 uA 1.4 V 50 mA 1.3 V 50 mA - 40 C + 150 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO263 800V 8A HT STD
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

QJxx08xx 8 A 100 A, 120 A 400 V, 600 V, 800 V 10 uA 1.5 V 50 mA 1.3 V 50 mA - 40 C + 150 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO263 800V 10A HT STD
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

QJxx10xx 10 A 100 A, 120 A 800 V 10 uA 1.6 V 35 mA 1.3 V 25 mA, 50 mA - 40 C + 150 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO263 800V 10A HT STD
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

QJxx10xx 10 A 100 A, 120 A 800 V 10 uA 1.6 V 50 mA 1.3 V 50 mA - 40 C + 150 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO263 800V 10A HT ALTN
Datasheet
500In Stock
Min.: 1
Mult.: 1
Reel: 500

QJxx10xHx 10 A 100 A, 120 A 800 V 10 uA 1.6 V 15 mA 1.3 V 10 mA - 40 C + 150 C Through Hole D2PAK-3 (TO-263-3) Reel, Cut Tape
Littelfuse Triacs TRIAC TO220 800V 10A HT ALTN
Datasheet
97In Stock
Min.: 1
Mult.: 1

QJxx10xHx 10 A 100 A, 120 A 800 V 10 uA 1.6 V 15 mA 1.3 V 10 mA - 40 C + 150 C Through Hole TO-220-3 Tube