Product Overview
Raychem GTCA26-301M-R05 300V 5kA 2-Electrode Axial GDT Surge Protector
Condition
Unused new old stock (NOS). Ceramic bodies and axial wire leads are clean with intact factory plating. Markings legible on body: X 30R. Sold each.
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Product Overview
Engineered for transient voltage surge protection, this 2-electrode axial gas discharge tube (GDT) shunts high-energy overvoltage spikes away from sensitive telecommunications lines, power supplies, and industrial control inputs. Operating with a nominal DC sparkover threshold of 300V and an 8/20 µs impulse rating of 5kA, the ceramic construction delivers dependable surge suppression with minimal signal attenuation.
Key Features
- Nominal DC sparkover voltage: 300V (±20% tolerance, 240V to 360V)
- Impulse discharge current rating: 5kA at 8/20 µs
- Low capacitance: 1.0 pF or less for high-frequency signal transparency
- Insulation resistance: 10,000 MΩ or greater
- Configuration: 2-electrode axial leaded ceramic package
- Body dimensions: 6.0 mm diameter by 4.2 mm length
Applications
- Soldering replacement surge arresters onto telecom distribution and modem interface boards.
- Installing transient suppression across sensitive DC power supply rails and signal loops.
- Building custom ESD and lightning protection stages for amateur radio gear and outdoor sensor nodes.
Frequently Asked Questions
Does this gas discharge tube have a specific mounting polarity?
No. As a symmetrical 2-electrode gas discharge tube, it operates bidirectionally across both leads.
Can this part be used in place of standard Littelfuse GTCA26 series devices?
Yes. The GTCA26 series design transitioned under Littelfuse circuit protection management, sharing identical physical dimensions, lead spacing, and electrical ratings.
Solid-state speed gets the headlines, but when lightning or an inductive kick hits the line, a real gas discharge tube takes the hit and walks away clean. Drop it across the trace and sleep soundly.
