DC spark-over voltage 1) 2) 4) 90

± 20

V

%

Impulse spark-over voltage 4)

at 100 V/μs - for 99 % of measured values

- typical values of distribution

at 1 kV/μs - for 99 % of measured values

- typical values of distribution

< 400

< 300

< 450

< 350

VV

VV

Nominal impulse discharge current (wave 8/20 μs) 5)

Single impulse discharge current (wave 8/20 μs) 5)

10

15

kA

kA

Nominal alternating discharge current (50 Hz, 1 s) 5)

Alternating discharge current (50 Hz, 9 cycles) 5)

10

40

AA Insulation resistance at 50 Vdc

4) > 10 GW

Capacitance at 1 MHz 4) < 1.5 pF

Transverse delay time 3) < 0.2 μs

Arc voltage at 1 A

Glow to arc transition current

Glow voltage

~ 10

~ 1

~ 60

VAV

Weight ~ 2 g

Operation and storage temperature -40 ... +90 °C

Climatic category (IEC 60068-1) 40/ 90/ 21

Marking, red

90 YY O

90 - Nominal voltage

YY - Year of production

O -Nonradioactive

1) At delivery AQL 0.65 level II, DIN *** 2859

2) In ionized mode

3) Test according to ITU-T Rec. K.12

4) Tip or ring electrode to center electrode

5) Total current through center electrode, half value through

tip respectively ring electrode.

Terms in accordance with ITU-T Rec. K.12 and DIN 57845/VDE0845