The 2027-09-BLF is a 2-pole gas discharge tube designed for overvoltage and surge protection across telecommunications, industrial, commercial, consumer, and automotive electronics. It features an 8 mm diameter and 6 mm length with a DC sparkover voltage of 90 V (±20%) at 100 V/s and impulse sparkover ratings of 300 V at 100 V/µs and 500 V at 1000 V/µs. The device offers high surge current capability with ratings up to 25,000 A (8/20 µs) for single operation and maintains stable breakdown characteristics throughout its operational life. With UL recognition, RoHS compliance options, and an operating temperature range of -55°C to +125°C, this tube provides reliable protection against transient overvoltages in demanding applications requiring both high performance and regulatory compliance.