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Showing Results For: Gas Discharge Tubes

Gas Discharge Tubes

Gas discharge tubes (GDTs) are compact surge protection components designed to safeguard electronic equipment from high-voltage surges. These devices protect against transient voltage spikes, such as those from lightning strikes or power fluctuations. A gas discharge tube is a sealed glass or ceramic tube filled with a mixture of gas, typically comprising two electrodes.  When the voltage across the electrodes exceeds a certain level, the gas ionizes, becoming conductive and allowing the excess voltage to pass through, thus protecting the circuitry beyond the tube from the surge.

Benefits of Using Our Range of GDTs:

GDTs effectively shunt the excess energy away from sensitive components. Our product portfolio includes multiple GDTs with various mounting options, including surface mount, socket mount, axial, radial, and through-hole discharge tubes, offering a range of benefits, such as: 

  • High Surge Handling Capability: Our GDTs can handle high-energy transients, making them suitable for areas with frequent electrical storms or unstable power supplies.
  • Fast Response Time: They activate within nanoseconds, providing immediate protection against surges.
  • Long Lifespan: GDTs do not degrade after multiple operations, ensuring long-term reliability.
  • Low Capacitance: They offer very low capacitance, which has a minimal impact on the circuit's normal operation.
  • Versatility: Available in various sizes and specifications to meet different requirements.

Popular Types of Gas Discharge Tubes:

GDTs are classified into various types based on the number of electrodes, insulation capacities, and designs. Some standard types include:

  • Two-Electrode GDTs: A two-electrode gas discharge tube is the most common tube that consists of two electrodes sealed within a glass envelope filled with inert gas. It is commonly used in basic surge protection.
  • Three-Electrode GDTs: These tubes feature an additional electrode designed to control the triggering voltage. Three-electrode GDTs are used for higher voltage applications and provide balanced protection in multi-line environments.
  • High Insulation GDTs: These components are designed for environments where a high insulation resistance is required when the device is non-conducting.
  • Miniature GDTs: These are compact versions for space-sensitive applications.

Where are Gas Discharge Tubes Used?

Gas discharge tubes are widely used across multiple sectors and applications where protection from lightning-induced surges and other transient events is paramount. Some typical applications include: 

  • Telecommunications
  • Power Supplies
  • Industrial Applications
  • Consumer Electronics
  • Automotive Electronics
  • Network Systems
  • Medical Equipment
  • Energy Systems.
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ET14001637
2089-120-BLF, Bourns
2089-120-BLF
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2089-120-BLF, Bourns
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2095-400-BLF, Bourns
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2095-400-BLF, Bourns
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ET13802420
2035-09-SM-RPLF, Bourns
2035-09-SM-RPLF
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2035-09-SM-RPLF, Bourns
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2049-60-BLF, Bourns
2049-60-BLF
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GTCA28-421M-R05, Littelfuse
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ET16762117
GTCR36-351M-R10, Littelfuse
GTCR36-351M-R10
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2031-23T-SM-RPLF, Bourns
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2056-09-B2LF, Bourns
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2056-60-B2LF, Bourns
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B88069X2830S102, EPCOS
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SL1011A230A, Littelfuse
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2052-42-SM-RPLF, Bourns
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SA2-6300-CLT-STD, Bourns
SA2-6300-CLT-STD
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2089-360-BLF, Bourns
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CG2800LTR, Littelfuse
CG2800LTR
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CG2800LTR, Littelfuse
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2027-23-BLF, Bourns
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2049-09-BLF, Bourns
2049-09-BLF
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B88069X9231T253, TDK
B88069X9231T253
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B88069X9231T253, TDK
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B88069X2180S102, EPCOS
B88069X2180S102
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B88069X2180S102, EPCOS
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SL1021A260R, Littelfuse
SL1021A260R
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SL1021A260R, Littelfuse
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ET14001636
2087-80-SM-RPLF, Bourns
2087-80-SM-RPLF
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2087-80-SM-RPLF, Bourns
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B88069X4180B502, EPCOS
B88069X4180B502
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B88069X4180B502, EPCOS
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2030-42T-SMLF, Bourns
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2030-42T-SMLF, Bourns
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New Items
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2045-35-BLF, Bourns

2045-35-BLF, Bourns

2045 Series Gas Discharge Tube 15kA/5A Medium duty low capacitance Applications in Telecommunications, Industrial and Consumer electronics
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SA2-3600-CLT-STD, Bourns

SA2-3600-CLT-STD, Bourns

Bourns SA series High Voltage Gas Discharge Tubes
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A81-A350X, EPCOS

A81-A350X, EPCOS

Miniature Gas Filled, 20kA/20A Suitable for use in telecommunication exchange main distribution frames, and subscriber-end equipment.
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EC 90X, EPCOS

EC 90X, EPCOS

Miniature Gas Filled, 5kA/5A Over-voltage arresters for the protection of telecommunication systems and equipment with measuring, control and regulating lines Robust ceramic body Low impulse spark-over voltage
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New items
B88069X0660S102, EPCOS

B88069X0660S102, EPCOS

Miniature Gas Filled, 5kA/5A Over-voltage arresters for the protection of telecommunication systems and equipment with measuring, control and regulating lines Robust ceramic body Low impulse spark-over voltage
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GDT35-15-S1-RP, Bourns

GDT35-15-S1-RP, Bourns

The Bourns GDT35 Series Next-Generation 3-Electrode Gas Discharge Tube Arrestor have been designed using Bourns proprietary, advanced computer simulation techniques and offer superb maximum impulse voltage limiting specifications for this class of GDT in a small, environmentally rugged surface mount package. The performance delivered in the Bourns GDT35 Series helps to significantly heighten protection against induced voltage transients such as lightning and AC induction. The enhanced level of protection with tighter voltage limiting provided during fast-rising events is designed to reduce stress on downstream components compared to current GDT designs in the same application. Fast response time Wide temperature range High surge current rating Low capacitance and insertion loss Stable performance throughout life Small surface mount package
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B88069X2930C102, EPCOS

B88069X2930C102, EPCOS

Miniature Gas Filled, 2.5kA/2.5A Suitable for use in subscriber-end equipment.
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2095-400-BLF, Bourns

2095-400-BLF, Bourns

2095 Series Gas Discharge Tube 8kA/2A Axial leaded device High Voltage range High insulation resistance Aplications include Telecomunications, Industrial and Consumer electronics
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2049-60-BLF, Bourns

2049-60-BLF, Bourns

2049 Series Gas Discharge Tube 20kA/20A Medium duty low capacitance Applications in Telecommunications, Industrial and Consumer electronics
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GTCA28-421M-R05, Littelfuse

GTCA28-421M-R05, Littelfuse

Gas Discharge Tube - GTCX28-XXXM-R10 Series GTCX28-XXXM-R10 Series Gas Discharge tubes by Tyco Electronics giving excellent surge protection characteristics, low capacitance and two breakover voltages. These Gas Discharge Tubes are suitable to protect sensitive equipment such as that used in high-data-rate telecom communication network protection i.e. ADSL , VDSL, Main distribution frame (MDF) modules and surge protection on power lines. 2-Poles, 8mm Devices Two Voltages, 420V and 470V Form factor: Axial Leads Low capacitance and insertion loss Applications include: Telecommunications - MDF Modules, xDSL equipment, RF system protection, antenna, base station. Industrial and consumer electronics - Surge protectors, alarm system.
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2031-23T-SM-RPLF, Bourns

2031-23T-SM-RPLF, Bourns

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2056-09-B2LF, Bourns

2056-09-B2LF, Bourns

2056 Series Gas Discharge Tube 5kA/5A Light duty 3 electrode radial design Low capacitance and insertion loss Applications in Telecommunications, Industrial and Consumer electronics
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We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Gas Discharge Tubes and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Gas Discharge Tubes or any other product.
This depends on the Gas Discharge Tubes individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Gas Discharge Tubes and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Gas Discharge Tubes.
Yes. We keep updating our stock frequently and if a product like Gas Discharge Tubes is not in stock then we will let you know.
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Related Products: Bourns 2045 Series 145V 15kA Axial 2 Electrode Gas Discharge Tube EPCOS EHV Series 230V 5kA Axial 2 Electrode Arrester Gas Discharge Tube (GDT) Miniature 2 pole gas discharge tube 185V Bourns 2049 Series 600V 20kA Axial 2 Electrode Gas Discharge Tube Bourns 2056 Series 90V 5kA Radial 3 Electrode Gas Discharge Tube Bourns 2035 Series 90V 10 kA@ 1 Operation, 5000 A@ 10 Operation SMD 2 Electrode Gas Discharge Tube Bourns 2095 Series 4000V 8kA Axial 2 Electrode Gas Discharge Tube Littelfuse GTCX28-XXXM-R10 Series 420V Through Hole Gas Discharge Tube (GDT) EPCOS EHV Series 230V 10kA Through Hole 2 Electrode Arrester Gas Discharge Tube (GDT) Littelfuse CG2 Series 920V 2.5kA Axial 2 Electrode Arrester Gas Discharge Tube (GDT) Bourns 2057 Series 120V 10kA Axial 2 Electrode Gas Discharge Tube EPCOS EHV Series 600V 12kA Through Hole 2 Electrode Arrester Gas Discharge Tube (GDT) Bourns 2049 Series 90V 20kA Axial 2 Electrode Gas Discharge Tube Bourns 2089 Series 3600V 3kA Axial 2 Electrode Gas Discharge Tube TDK, S30-90X 117V, SMD 2 Electrode Arrester Gas Discharge Tube Bourns 2027 Series 230V 10 kA@ 10 Operation, 25 kA@ 1 Operation Through Hole 2 Electrode Gas Discharge Tube Bourns SA Series 6300V 5kA Axial 2 Electrode Gas Discharge Tube EPCOS, A71-H14X 1400V 15kA 2 Electrode Arrester Gas Discharge Tube EPCOS EHV Series 90V 20kA Through Hole 2 Electrode Arrester Gas Discharge Tube (GDT) Bourns 2045 Series 400V 15kA Axial 2 Electrode Gas Discharge Tube