2028
2028 is Long Life Heavy-Duty 3-Electrode Gas Discharge Tube manufactured by Bourns.
Features n Size: 8 mm diameter, 10 mm length n Balanced and symmetrical TRIGARD® design n High surge current rating n Stable breakdown throughout life n Long life n Fail-Short available n Ro HS pliant-
This series is obsolete and not remended for new designs.
Applications n Telemunications electronics n Industrial electronics n Consumer electronics
2028 Series Long Life Heavy-Duty 3-Electrode Gas Discharge Tube
Characteristics
Test Methods per Characteristic
ITU-T
K.12,
IEEE
C62.L3VERE1Ao RDHSSFa IORCNn EOSEMd APRLIEIEANCT-
61643-311 2028-23
GDT standards. 2028-25
Model No.
2028-35
2028-42
DC Sparkover ±20 % @ 100 V/s
230 V
250 V
350 V
420 V
Impulse Sparkover (1) 100 V/µs (Typical/99 %) 1000 V/µs (Typical/99 %)
< 450 V/550 V < 650 V/750 V
< 450 V/550 V < 650 V/750 V
< 700 V/800 V < 850 V/950 V
< 850 V/950 V < 1050 V/1150 V
(1) Impulse Sparkover voltage is defined as typical values of distribution.
OBSOLETE Impulse Transverse Delay 1000 V/µs < 75 ns
Insulation Resistance (IR) 100 V > 1 GΩ Capacitance 1 MHz < 2 p F Glow Voltage 10 m A ~ 70 V Arc Voltage 1 A ~ 10 V DC Holdover Voltage (2) 135 V < 150 ms Impulse Discharge Current (3) 30,000 A, 8/20 µs 1 operation
20,000 A, 8/20 µs 10 operations 5,000...
