SIDACtor® Protection Thyristors

Littelfuse SIDACtor® Protection Thyristors are thyristor devices used to protect sensitive circuits from electrical disturbances caused by lightning-induced surges, inductive-coupled spikes, and AC power fault conditions. The unique structure and characteristics of the thyristor are used to create an overvoltage protection device with precise and repeatable turn-on characteristics with low voltage overshoot and high surge current capabilities. SIDACtor components are solid state crowbar devices with a patented ion implant technology that ensures effective protection within nanoseconds. Littelfuse SIDACtor Protection Thyristors include a wide range of semiconductor protection thyristor over-voltage transient suppression devices designed to serve requirements of telecom and data networking equipment applications.

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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 Breakover Voltage VBO
Breakover Current IBO Max
Non Repetitive On-State Current
Rated Repetitive Off-State Voltage VDRM
Off-State Leakage Current @ VDRM IDRM
Holding Current Ih Max
On-State Voltage
Off-State Capacitance CO
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
Qualification
Packaging
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 140V 3000A DO214AB RoHS
Datasheet
2,718In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

140 V 4 V 150 pF - 65 C + 150 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD HIGH SURGE 320V 1000A
Datasheet
1,925In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

400 V 800 mA 50 A 320 V 5 uA 50 mA 4 V 45 pF to 65 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 2Chp 275/550V 500A
Datasheet
509In Stock
Min.: 1
Mult.: 1

350 V, 700 V 800 mA 50 A 275 V, 550 V 5 uA 150 mA 4 V 15 pF to 45 pF, 30 pF to 80 pF - 40 C + 85 C Through Hole TO-220-2 Bulk

Littelfuse Thyristor Surge Protection Devices - TSPD 12V 30A
Datasheet
1,912In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

12 V 300 pA 40 mA 2.5 pF - 55 C + 150 C SMD/SMT SOT-23-6 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 500A 220V
Datasheet
1,247In Stock
Min.: 1
Mult.: 1

300 V 800 mA 30 A 220 V 5 uA 150 mA 4 V 30 pF to 80 pF - 40 C + 85 C Through Hole TO-92 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 58V 3000A DO214AB RoHS
Datasheet
2,994In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 58 V 5 uA 50 mA 4 V 550 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 65V 3000A DO214AB RoHS
Datasheet
3,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 65 V 5 uA 50 mA 4 V 550 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 75V 3000A DO214AB RoHS
Datasheet
1,989In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 75 V 5 uA 50 mA 4 V 550 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 90V 3000A DO214AB RoHS
Datasheet
2,992In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 90 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 120V 3000A DO214AB RoHS
Datasheet
3,003In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 120 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 140V 3000A DO214AB RoHS
Datasheet
3,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 140 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 155V 3000A DO214AB RoHS
Datasheet
2,961In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 155 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD TSPD DO214 170V 3KA SIDACTR
Datasheet
2,995In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

800 mA 170 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 180V 3000A DO214AB RoHS
Datasheet
1,759In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 180 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 220V 3000A DO214AB RoHS
Datasheet
2,930In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 220 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 275V 3000A DO214AB RoHS
Datasheet
2,508In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 320 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 350V 3000A DO214AB RoHS
Datasheet
743In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000
800 mA 350 V 5 uA 50 mA 4 V 450 pF - 65 C + 125 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 6V 50A QFN 3X3 2L SIDACtor Bi
Datasheet
12,901In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

50 mA SMD/SMT QFN-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 6V 500A SIDACtor
Datasheet
2,375In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

50 mA SMD/SMT QFN-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 50A 6V
Datasheet
7,636In Stock
7,500Expected 07/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

25 V 800 mA 20 A 6 V 5 uA 50 mA 4 V 100 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD DO-214AA SIDACtor devices
Datasheet
4,585In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

50 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD HIGH SURGE 6V 1000A
Datasheet
2,645In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

25 V 800 mA 50 A 6 V 5 uA 50 mA 4 V 50 pF to 150 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD MicroCapacitance SA SIDACtor
Datasheet
10,628In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

32 V 800 mA 20 A 15 V 5 uA 50 mA 4 V 25 pF to 50 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor MicroCapacitance
Datasheet
4,038In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

50 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 30V 2.5kA Bi-Dir
Datasheet
1,721In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

45 V 800 mA 250 A 30 V 5 uA 50 mA 4 V 150 pF - 65 C + 150 C SMD/SMT DO-214AB Reel, Cut Tape, MouseReel