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. 525-9061
Mfr. Part No.DSAZR2-501M
DSAZR Surge Absorber 1kA 800V - 250 V Through Hole 21.5 x 8.5 x 28.5mm 12.5mm 8.5mm 28.5mm 21.5mm - -
RS Stock No. 525-8793
Mfr. Part No.DSP-141N
DSP Surge Absorber - 140V - 182 V Through Hole 2.6 (Dia.) x 7mm - 2.6 (Dia.)mm 2.6mm 7mm - -