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: 335
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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 4A 25-25-25mA
Datasheet
679In 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 SMD/SMT TO-252-3 Tube
Littelfuse Triacs 800V 4A 25-25-25mA
Datasheet
3,839In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Qxx04xx 4 A 46 A, 55 A 800 V 10 uA 1.6 V 30 mA 2.5 V 25 mA, 50 mA - 40 C + 125 C SMD/SMT TO-252-3 Reel, Cut Tape, MouseReel
Littelfuse Triacs 400V 8A
Datasheet
683In 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 600V 6A 35-35-35mA
Datasheet
866In Stock
Min.: 1
Mult.: 1

Qxx06xxH 6 A 55 A, 65 A 600 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C Through Hole TO-251-3 Tube
Littelfuse Triacs 600V 1A 10-10-10mA
Datasheet
1,188In Stock
Min.: 1
Mult.: 1

Qx01E 1 A 16.7 A, 20 A 600 V 5 uA 1.6 V 15 mA 2 V 10 mA, 25 mA - 65 C + 125 C Through Hole TO-92 Bulk
Littelfuse Triacs Triac 600V 10A
Datasheet
46In Stock
Min.: 1
Mult.: 1

Qxx10xx 10 A 100 A, 120 A 600 V 50 uA 1.6 V 50 mA 2.5 V 50 mA, 75 mA - 40 C + 125 C Through Hole TO-220-3 Tube
Littelfuse Triacs 8 Amp Alternistor TRIAC-TO220 Iso
Datasheet
998In Stock
Min.: 1
Mult.: 1
: 1,000

Qxx06xH 8 A 83 A, 100 A 600 V 10 uA 1.6 V 50 mA 1.3 V 50 mA - 40 C + 125 C Through Hole TO-220AB-3 Reel, Cut Tape
Littelfuse Triacs 40 Amp Standard TRIAC-TO218AC
Datasheet
245In Stock
Min.: 1
Mult.: 1

Qxx40x 40 A 400 A, 480 A 600 V 20 uA 1.8 V 80 mA 1.3 V 50 mA, 100 mA - 40 C + 125 C Through Hole TO-218AC-3 Tube
Littelfuse Triacs Altnstr 600V 40A Iso 100(1-3)mA
Datasheet
2,338In Stock
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 8A 600V Alt TO-252 D-PAK
Datasheet
2,500In Stock
Min.: 1
Mult.: 1
: 2,500
QJxx08xH 8 A 84 A 600 V 10 uA 1.5 V 25 mA 1.3 V 10 mA - 40 C + 150 C SMD/SMT TO-252-3 Reel, Cut Tape
Littelfuse Triacs 400V 4A 10-10-10mA
Datasheet
7,210In Stock
Min.: 1
Mult.: 1

Qxx04xx 4 A 46 A, 55 A 400 V 10 uA 1.6 V 20 mA 2 V 10 mA, 25 mA - 40 C + 125 C Through Hole TO-220-2 Tube
Littelfuse Triacs 400V 15A 50-50-50mA
Datasheet
2,406In Stock
Min.: 1
Mult.: 1

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 Through Hole TO-220-2 Tube
Littelfuse Triacs 600V 6A 35-35-35mA
Datasheet
1,082In Stock
Min.: 1
Mult.: 1

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 Through Hole TO-220-2 Tube
Littelfuse Triacs 600V 15A 50-50-50mA
Datasheet
1,548In Stock
Min.: 1
Mult.: 1

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 Through Hole TO-220-2 Tube
Littelfuse Triacs 600V 30A 50-50-50mA
Datasheet
2,843In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Qxx35xHx 35 A 290 A, 350 A 600 V 10 uA 1.5 V 75 mA 2 V 50 mA - 40 C + 125 C SMD/SMT SMTO-263-2 Reel, Cut Tape, MouseReel
Littelfuse Triacs 800V 10A 50-50-50mA
Datasheet
1,464In Stock
Min.: 1
Mult.: 1

Qxx10xx 10 uA 1.6 V TO-220-2 Tube
Littelfuse Triacs 800V 15A 50-50-50mA
Datasheet
644In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 800V 16A 35-35-35 mA
Datasheet
1,232In Stock
Min.: 1
Mult.: 1

Qxx16xHx 16 A 167 A, 200 A 800 V 5 uA 1.6 V 50 mA 2 V 35 mA - 40 C + 125 C Through Hole TO-220-2 Tube
Littelfuse Triacs 400V 1A 10-10-10mA
Datasheet
4,000In Stock
4,000Expected 10/08/2026
Min.: 1
Mult.: 1

Qx01E 1 A 16.7 A, 20 A 400 V 20 uA 1.6 V 15 mA 2 V 10 mA, 25 mA - 65 C + 125 C Through Hole TO-92-3 Bulk
Littelfuse Triacs Altnstr 400V 40A Iso 100-100-100mA
Datasheet
483In Stock
Min.: 1
Mult.: 1

Qxx40xx 40 A 335 A, 400 A 400 V 20 uA 1.8 V 120 mA 2.5 V 100 mA - 40 C + 125 C Through Hole SMTO-218 Tube
Littelfuse Triacs 600V 8A 10-10-10mA
Datasheet
12,057In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 600V 8A 35-35-35mA
Datasheet
1,408In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Qxx08xHx 6 A 55 A, 65 A 600 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C SMD/SMT TO-252-3 Reel, Cut Tape, MouseReel
Littelfuse Triacs Altnstr 600V 40A Iso 100-100-100mA
Datasheet
957In Stock
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 8A
Datasheet
2,215In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Qxx08xHx 8 A 80 A, 85 A 800 V 10 uA 1.6 V 35 mA 1.3 V 35 mA - 40 C + 125 C SMD/SMT TO-252-3 Reel, Cut Tape, MouseReel
Littelfuse Triacs Altnstr 800V 40A Iso 100-100-100mA
Datasheet
269In Stock
Min.: 1
Mult.: 1

Qxx40xx 40 A 335 A, 400 A 800 V 20 uA 1.8 V 120 mA 2.5 V 100 mA - 40 C + 125 C Through Hole SMTO-218 Tube