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: 895
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (PLN) 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 320V
Datasheet
1 788In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

400 V 800 mA 30 A 320 V 5 uA 150 mA 4 V 25 pF to 40 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 500A 320V
Datasheet
1 931In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

150 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 380V 50A DO214 2L SIDACtor Bi
Datasheet
231In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

500 V 800 mA 20 A 380 V 5 uA 120 mA 8 V 15 pF to 30 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 380V 500A 2L BI SIDACtor DO214
Datasheet
895In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

500 V 2.2 A 800 mA 380 V 5 uA 120 mA 8 V 15 pF - 40 C + 150 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 500A 440V Opt 440/600 RTG C
Datasheet
235In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

120 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD P6002ABL
Datasheet
39In Stock
Min.: 1
Mult.: 1

350 V, 700 V 800 mA 30 A 275 V, 550 V 5 uA 150 mA 4 V 10 pF to 45 pF, 20 pF to 80 pF - 40 C + 85 C Through Hole TO-220-2 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD 550V 50A DO214 2L SIDACtor Bi
Datasheet
1 638In Stock
5 000Expected 1/11/2027
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

700 V 800 mA 20 A 550 V 5 uA 120 mA 8 V 10 pF to 25 pF - 40 C + 85 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 50A 90V
Datasheet
154In Stock
Min.: 1
Mult.: 1

130 V 800 mA 20 A 90 V 5 uA 150 mA 4 V 30 pF to 50 pF - 40 C + 85 C Through Hole TO-92 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD 3Chp 300V 100A
Datasheet
97In Stock
Min.: 1
Mult.: 1

400 V 800 mA 30 A 300 V 5 uA 150 mA 8 V 10 pF to 45 pF, 15 pF to 65 pF - 40 C + 85 C Through Hole TO-220-2 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD 30A 8V Baseband Voice-DS1
Datasheet
5 000Expected 10/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

25 V 800 mA 20 A 6 V 5 uA 50 mA 4 V 25 pF to 35 pF - 40 C + 85 C SMD/SMT DO-214AC Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD Bi 22V 500A DO214 2L
Datasheet
4 082On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

50 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 50A 65V
Datasheet
5 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

88 V 800 mA 20 A 65 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 500A 65V
Datasheet
2In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

150 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 100A 220V
Datasheet
5 000Expected 10/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

300 V 800 mA 25 A 220 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 24V 30A
Datasheet
2 983Expected 12/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

24 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 58V
Datasheet
2 452Expected 12/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

150 mA SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 400V 500A SIDACtor DO-214AA
Datasheet
1 457Expected 9/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

530 V 800 mA 400 V 5 uA 150 mA 4 V 65 pF - 65 C + 150 C SMD/SMT DO-214AA Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 100A 120/240V
Datasheet
500Stock Available
More Info Available
Min.: 1
Mult.: 1

160 V, 320 V 800 mA 30 A 120 V, 240 V 5 uA 150 mA 4 V 15 pF to 60 pF, 25 pF to 105 pF - 40 C + 85 C Through Hole TO-220-2 Bulk
Littelfuse Thyristor Surge Protection Devices - TSPD 30A 24V SOT23-5L
Datasheet
Non-Stocked Lead-Time 16 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

30 mA SMD/SMT SOT-23-5 Reel, Cut Tape, MouseReel
Littelfuse Thyristor Surge Protection Devices - TSPD 54V 78V DO214 3L
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 10 000
Mult.: 2 500
: 2 500

800 mA 78 V 5 uA 120 mA 4 V 32 pF - 40 C + 150 C SMD/SMT DO-214AA Reel
Littelfuse Thyristor Surge Protection Devices - TSPD 6Chp 50/170V 50A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10 500
Mult.: 1 500
: 1 500

80 V, 250 V 800 mA 20 A 50 V, 170 V 5 uA 120 mA 8 V 80 pF - 40 C + 85 C SMD/SMT Modified-MS-013-6 Reel
Littelfuse Thyristor Surge Protection Devices - TSPD 6Chp 50/170V 50A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10 500
Mult.: 500

80 V, 250 V 800 mA 20 A 50 V, 170 V 5 uA 120 mA 8 V 80 pF - 40 C + 85 C SMD/SMT Modified-MS-013-6 Tube
Littelfuse Thyristor Surge Protection Devices - TSPD 6Chp 50/170V 500A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10 500
Mult.: 1 500
: 1 500

80 V, 250 V 800 mA 50 A 50 V, 170 V 5 uA 120 mA 8 V 80 pF - 40 C + 85 C SMD/SMT Modified-MS-013-6 Reel
Littelfuse Thyristor Surge Protection Devices - TSPD 6Chp 50/170V 500A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10 500
Mult.: 500

80 V, 250 V 800 mA 50 A 50 V, 170 V 5 uA 120 mA 8 V 80 pF - 40 C + 85 C SMD/SMT Modified-MS-013-6 Tube
Littelfuse Thyristor Surge Protection Devices - TSPD 6Chp 270/400V 500A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10 500
Mult.: 1 500
: 1 500

340 V, 550 V 800 mA 50 A 270 V, 400 V 5 uA 150 mA 8 V 60 pF - 40 C + 85 C SMD/SMT Modified-MS-013-6 Reel