Gas Discharge Tubes

Gas discharge tubes are sealed glass tubes containing a pair of electrodes and filled with a gas that only conducts when a high voltage is applied across the electrodes. When a voltage spike appears across the device the gas is ionised (becomes a conducting gas plasma) which short-circuits the spike energy away. Gas discharge tubes are often used to protect sensitive circuit inputs from potentially damaging interference voltage transients. The large amount of energy that can be dispersed by gas discharge tubes makes them a good choice for lightning surge protection, particularly for telecommunications equipment.

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Description Price Series Suppressor Type Maximum Surge Current DC Spark Over Voltage Impulse Spark Over Voltage Maximum Voltage Rating Mounting Type Dimensions Lead Pitch Depth Height Length Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 852-2974
Mfr. Part No.2049-07-BT1LF
BrandBourns
SGD0.627
Each (In a Pack of 1000)
units
2049 2 Electrode Gas Discharge Tube 15 kA @ 10 Operation, 20 kA @ 1 Operation 75V <500 V @ 100 V/μs, <600 V @ 1000 V/μs 75 V Axial 6 (Dia.) x 8mm - - - 8mm +85°C -30°C
RS Stock No. 852-2842
Mfr. Part No.2036-35-B2LF
BrandBourns
SGD1.497
Each (In a Pack of 1000)
units
2036 3 Electrode Gas Discharge Tube 10 kA @ 10 Operation, 20 kA @ 1 Operation 350V 600 V @ 100 V/μs, 750 V @ 1000 V/μs 350 V Surface Mount 5 (Dia.) x 7.3mm - - - 7.3mm +85°C -55°C
RS Stock No. 760-6807
Mfr. Part No.SL1021A090R
BrandLittelfuse
SGD4.608
Each (In a Pack of 5)
units
SL10021A 3 Electrode Arrester 10kA 108V 500 V @ 100 V/μs, 650 V @ 1 kV/μs - Radial 8.1 (Dia.) x 10.1mm 4.4mm - - 10.1mm +90°C -40°C
RS Stock No. 760-6740
Mfr. Part No.CG90LTR
BrandLittelfuse
SGD4.488
Each (In a Pack of 5)
units
CG 2 Electrode Arrester 4kA 108V 400V @ 100 V/μs, 600 V @ 1 kV/μs - Axial 8.1 (Dia.) x 6.07mm - - - 6.07mm +90°C -40°C
RS Stock No. 780-4922
Mfr. Part No.SA2-6300-CLT-STD
BrandBourns
SGD5.156
Each (In a Pack of 5)
units
SA 2 Electrode Gas Discharge Tube 5kA 6300V 9200V 6300 V Axial 8.5 (Dia.) x 8.9mm - - - 8.9mm +125°C -40°C
RS Stock No. 191-1557
Mfr. Part No.B88069X2380S102
BrandEPCOS
SGD2.99
Each
units
EHV 2 Electrode Arrester 20kA 350V <650 V @ 100 V/μs, 800 V @ 1 kV/μs 350 V dc Through Hole - - - - 6.05mm +90°C -40°C
RS Stock No. 172-9718
Mfr. Part No.2049-07-BLF
BrandBourns
SGD0.61
Each (In a Bag of 500)
units
2049 2 Electrode Gas Discharge Tube 20kA 75V <600V - Axial 8 (Dia.) x 6mm - - - 6mm +85°C -30°C
RS Stock No. 733-4965
Mfr. Part No.2051-09-SM-RPLF
BrandBourns
SGD1.112
Each (In a Pack of 5)
units
2051 2 Electrode Arrester 2kA 90V <500 V, <600V 90 V Surface Mount 4.5 x 3.2 x 2.7mm - 3.2mm 2.7mm 4.5mm +90°C -40°C
RS Stock No. 852-2839
Mfr. Part No.2036-07-B2LF
BrandBourns
SGD1.44
Each (In a Pack of 1000)
units
2036 3 Electrode Gas Discharge Tube 10 kA @ 10 Operation, 20 kA @ 1 Operation 75V 250 V @ 100 V/μs, 525 V @ 1000 V/μs 75 V Surface Mount 5 (Dia.) x 7.3mm - - - 7.3mm +85°C -55°C