Can be used to meet the requirements of GR-1361 abd ITU K.12.
Temperature Rating
Storage -40°C to + 150°C
Operate -30°C to +85°C
100% Inspection
DC Breakdown, insulation resistance, physical dimensions, lead/weld strength and appearance.
All other gas tube characteristics are checked using the appropriate sampling procedures.
ISO 9001 Certified.
Gas Tubes have no radioactive content.
RoHS Compliance
WPGT Series Gas Discharge Tubes purchased from World Products Inc. comply to a maximum concentration value of 0.1% by weight in homogeneous materials for lead (Pb), mercury, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) and of 0.01% weight in homogeneous materials for cadmium and are in compliance with Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS Directive). Fail safe types with date code of 10/05 or after comply to RoHS standards stated above.
Solderability
Complies with MIL STD 202G, Method 208H.
Part Marking
Terms and Definitions
DC Breakdown Voltage
The voltage measured at a rise time of 100v/s.
Maximum Impulse Breakdown Voltage
The maximum breakdown voltage at rise times of 100v/us and 1000v/us.
Maximum Impulse Discharge Current
The maximum current applying a waveform of 8/20us that can be applied across the terminals of the gas tube without causing the gas tube to change more than ±25% from its initial measured DC breakdown voltage. Dwell time between pulses is 3 minutes.
Alternating Discharge Current
Rated RMS value of AC current at 50Hz, 1 sec. 10 times. Intervals: 3min. DC breakdown voltage may not change more than ±25% from its initial measured DC breakdown voltage. IR > 108W (-20%, +30% for 70 – 90V).
Impulse Life
The minimum number of impulses of a specified waveform and peak current which a gas tube will conduct without causing the gas tube to change more than ±25% from its initial measured DC breakdown voltage. Dwell time between pulses is 1-2 minutes.
DC Holdover Voltage
The maximum DC voltage across the two terminals of the gas tube under which it may be expected to return to the high impedance state after the gas tube breakdown.
Insulation Resistance
The resistance of the gas tube shall be measured each terminal to each other terminal.
DC Breakdown Voltage
70-150V
151-400V
470-1000V
1001-2000V
2001-6000V
Measuring Voltage
50V
100V
250V
500V
1000V
Capacitance
The capacitance of a gas tube shall be measured each terminal to each other terminal. Test frequency: 1MHz In measurements involving 3-electrode gas tubes, the terminal not being tested shall be connected to a ground plane.
