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.

Results: 896
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) 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 500A 6V 6,425In Stock
Min.: 1
Mult.: 1
: 2,500

25 V 800 mA 50 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 MicroCapacitance SA SIDACtor 10,600In Stock
Min.: 1
Mult.: 1
: 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 5,728In Stock
Min.: 1
Mult.: 1
: 2,500

50 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 30V 2.5kA Bi-Dir 3,933In Stock
Min.: 1
Mult.: 1
: 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
Littelfuse Thyristor Surge Protection Devices - TSPD 500A 25V 5,449In Stock
Min.: 1
Mult.: 1
: 2,500

40 V 800 mA 50 A 25 V 5 uA 50 mA 4 V 110 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD Modified TO-220 SIDACtor 1,355In Stock
Min.: 1
Mult.: 1

40 V, 80 V 800 mA 20 A 25 V, 50 V 5 uA 50 mA 4 V 10 pF to 20 pF, 15 pF to 145 pF - 40 C + 85 C Through Hole TO-220-2 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 58V 3000A DO214AB RoHS 2,991In Stock
Min.: 1
Mult.: 1
: 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 500A 58V 3,303In Stock
5,000Expected 2026/07/08
Min.: 1
Mult.: 1
: 2,500

77 V 800 mA 50 A 58 V 5 uA 150 mA 4 V 50 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 65V 3000A DO214AB RoHS 3,000In Stock
Min.: 1
Mult.: 1
: 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 3,989In Stock
Min.: 1
Mult.: 1
: 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 2,992In Stock
Min.: 1
Mult.: 1
: 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 500A 90V 2,443In Stock
Min.: 1
Mult.: 1
: 2,500

130 V 800 mA 50 A 95 V 5 uA 120 mA 5 V 70 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 120V 3000A DO214AB RoHS 3,003In Stock
Min.: 1
Mult.: 1
: 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 3,000In Stock
Min.: 1
Mult.: 1
: 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 HIGH SURGE 170V 1000A 2,500In Stock
Min.: 1
Mult.: 1
: 2,500

220 V 800 mA 50 A 170 V 5 uA 50 mA 4 V 50 pF to 90 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 155V 3000A DO214AB RoHS 2,961In Stock
Min.: 1
Mult.: 1
: 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 SIDACtor Bi 180V 3000A DO214AB RoHS 2,543In Stock
Min.: 1
Mult.: 1
: 3,000

180 V 4 V 150 pF - 65 C + 150 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 180V 3000A DO214AB RoHS 1,759In Stock
Min.: 1
Mult.: 1
: 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 2,928In Stock
Min.: 1
Mult.: 1
: 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 HIGH SURGE 220V 1000A 3,317In Stock
Min.: 1
Mult.: 1
: 2,500

300 V 800 mA 50 A 220 V 5 uA 50 mA 4 V 50 pF to 75 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 275V 3000A DO214AB RoHS 2,588In Stock
Min.: 1
Mult.: 1
: 3,000

275 V 4 V 150 pF - 65 C + 150 C SMD/SMT DO-214AB-2 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 50A 275V 8,987In Stock
7,500Expected 2026/07/27
Min.: 1
Mult.: 1
: 2,500

350 V 800 mA 20 A 275 V 5 uA 150 mA 4 V 20 pF to 35 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 100A 275V 14,181In Stock
Min.: 1
Mult.: 1
: 2,500

350 V 800 mA 25 A 275 V 5 uA 150 mA 4 V 20 pF to 45 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD SIDACtor Bi 275V 3000A DO214AB RoHS 2,508In Stock
Min.: 1
Mult.: 1
: 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 693In Stock
Min.: 1
Mult.: 1
: 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