SE Gas Discharge Tubes

Littelfuse SE Gas Discharge Tubes (GDTs) offer high surge ratings in a miniature PCB surface mountable package that measures only 3.2mm x 1.6mm x 1.6mm. The low insertion loss of the SE series makes it ideal for broadband equipment applications. The capacitance does not vary with voltage, and will not cause operational problems with ADSL2+, where capacitance variation across Tip and Ring is undesirable. These devices are extremely robust and are able to divert a 500A to 600A pulse in a miniature package 1206 without destruction.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Peak Pulse Current
DC Sparkover
Number of Electrodes
Termination Style
Failsafe Protection Y/N
Length
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V <0.3 pf IMPL 1100 Volts @1Kv
Datasheet
1,603In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SE 500 A 200 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel, Cut Tape, MouseReel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350V <0.5 pf IMPL 1150 Volts @1Kv
Datasheet
3,022In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SE 500 A 350 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel, Cut Tape, MouseReel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V <0.5 pf IMPL 900 Volts @ 1Kv
Datasheet
590In Stock
3,000Expected 2026-05-14
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SE 500 A 140 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel, Cut Tape, MouseReel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V <0.5 pf IMPL 800 Volts @ 1Kv
Datasheet
5,035Expected 2026-04-10
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SE 500 A 230 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel, Cut Tape, MouseReel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 240V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SE 500 A 240 V 2 Electrode SMD/SMT 3.2 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 470V <0.3 pf IMPL 1200 Volts @1Kv
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SE 500 A 470 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel
Littelfuse Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 500V <0.3 pf IMPL 1200 Volts @1Kv
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SE 500 A 500 V 2 Electrode SMD/SMT Failsafe Not Protected 3.2 mm - 40 C + 90 C Reel