Features ■ Low capacitance ■ Fire-retardant ■ Robust GDT protection ■ Long life ■ Fail-Short device ■ For use with C-50 and C-52 Protector Blocks ■ Rugged sealed construction ■ Low loss for broadband applications ■ High surge-energy handling 2022-28-A Series Gas Tube Surge Protector Bourns® Model 2022-28-A Central Office (CO) protectors are ideal for protection of legacy Main Distributing Frames (MDF). They are designed to protect against lightning surges, power-cross conditions and ground potential rises. The protector element consists of Bourns’ own balanced, heavy-duty rated, Gas Discharge Tube (GDT). A Fail-Short mechanism provides an extra measure of safety against thermal overload. The GDT mechanism is housed in a fire-retardant body. Characteristics Test Methods per IEEE C62.31, UL 497, RUS PE80, Telcordia GR-1361. DC Breakdown @ 100 V/sec ...................................................................................................................................300-500 V Impulse Breakdown 100 V/µsec .........................................................................................................................................................600 V 10 kV/µsec ..........................................................................................................................................................850 V Insulation Resistance @ 100 V ...............................................................................................................................>109Ω Capacitance @ 1 kHz ..............................................................................................................................................<15 pF DC Extinguishing @ 52 V, 135 V, 150 V ..................................................................................................................<150 msec Impulse Life Characteristics 3000x 10 A..........................................................................................................................................................10/1000 µsec 300x 100 A..........................................................................................................................................................10/1000 µsec 100x 300 A..........................................................................................................................................................10/1000 µsec 400x 500 A..........................................................................................................................................................10/1000 µsec 25x 2 kA..............................................................................................................................................................10/250 µsec 20 kA...................................................................................................................................................................8/20 µsec AC Life Characteristics 20x 10 A..............................................................................................................................................................1 sec. 60x 1 A................................................................................................................................................................1 sec. 65 A.....................................................................................................................................................................11 cycles Packaging Specifications Product Dimensions 22.86 (.900) 20.42 (.804) 9.65 (.380) Model 2022-28-A ships standard bulk pack, 500 pcs./bag. 9.14 (.360) 5.08 (.200) How to Order Part Number ..............................2022-28-A 11.68 (.460) 13.97 (.550) 25.4 (1.000) BOURNS DIMENSIONS: MM (INCHES) 2022-28-A REV. B 09/13 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.