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.

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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 600V 8A 10-10-10mA
Datasheet
7.499On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Qxx08xHx 6 A 55 A, 65 A 600 V 10 uA 1.6 V 15 mA 1.3 V 10 mA - 40 C + 110 C SMD/SMT TO-252-3 Reel, Cut Tape, MouseReel
Littelfuse Triacs Altnstr 600V 40A Iso 100(1-3)mA
Datasheet
879Expected 2/16/2026
Min.: 1
Mult.: 1

Qxx40xx 40 A 335 A, 400 A 600 V 20 uA 1.8 V 120 mA 2.5 V 100 mA - 40 C + 125 C Through Hole SMTO-218 Tube
Littelfuse Triacs Altnstr 800V 40A Iso 100-100-100mA
Datasheet
250Factory Stock Available
More Info Available
Min.: 250
Mult.: 250

Qxx40xx 40 A 335 A, 400 A 800 V 5 uA 1.8 V 75 mA 1.3 V 50 mA - 40 C + 125 C Through Hole SMTO-218 Tube
Littelfuse Triacs 8A 800V Alt Triacs TO-252 D-PAK
Datasheet
2.500Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
Reel: 2.500

QJxx08xH 8 A 600 V 10 uA 1.5 V 1.3 V 35 mA - 40 C + 150 C SMD/SMT TO-252-3 Reel, Cut Tape
Littelfuse Triacs 8A 800V Alt Triacs TO-252 D-PAK
Datasheet
750Factory Stock Available
More Info Available
Min.: 750
Mult.: 750

QJxx08xH 8 A 600 V 10 uA 1.5 V 1.3 V 35 mA - 40 C + 150 C SMD/SMT TO-252-3 Tube
Littelfuse Triacs 400V 15A 50-50-50mA
Datasheet
500Stock Available
More Info Available
Min.: 500
Mult.: 500
Reel: 500

Qxx15xx 15 A 167 A, 200 A 400 V 5 uA 1.6 V 70 mA 2.5 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel
Littelfuse Triacs 400V 4A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx04xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 400V 4A 10-10-10mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx04xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 400V 4A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx04xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 400V 6A 25-25-25mA
Datasheet
Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx06xx 6 A 65 A, 80 A 400 V 50 uA 1.6 V 50 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 400V 6A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx06xx 6 A 65 A, 80 A 400 V 50 uA 1.6 V 50 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 6A
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx06xxH 6 A 80 A, 85 A 400 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 400V 6A
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx06xxH 6 A 80 A, 85 A 400 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 8A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx08xx 8 A 83 A, 100 A 400 V 50 uA 1.6 V 50 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 400V 8A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx08xx 8 A 83 A, 100 A 400 V 50 uA 1.6 V 50 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 8A
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx08xHx 8 A 83 A, 100 A 400 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 400V 8A
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx08xHx 8 A 83 A, 100 A 400 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 10A Triac ISO 25-25-25 mA TO220
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

Qxx10xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 400V 10A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx10xx 10 A 100 A, 120 A 400 V 10 uA 1.6 V 35 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 400V 10A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx10xx 10 A 100 A, 120 A 400 V 10 uA 1.6 V 35 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 10A 50-50-50mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx10xx 10 A 100 A, 120 A 400 V 10 uA 1.6 V 50 mA 2.5 V 50 mA, 75 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Tube
Littelfuse Triacs 400V 10A
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Qxx10xx 10 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 400V 10A
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx10xx 10 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 Tube
Littelfuse Triacs 400V 10A 25-25-25mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx10xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 400V 10A 50-50-50mA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1.000
Mult.: 1.000

Qxx10xHx 10 uA 1.6 V TO-220-2 Tube