2-Electrode Spark Gap

2-Electrode Spark Gap – GXH Series

Short Description:

The GXH Series of 2-electrode spark gaps are gas discharge tubes, hermetically sealed in a glass/metal envelope. Tubes with a DC breakdown voltage in the range 0.50KV to 12 kV are available. This is signified by a numeral or numerals following the type letters and is expressed in hundreds of volts.

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Applications

Single-shot pulse generators

Turbine engine ignition circuits

Medical lithotripsy

High energy switches

Electrical And Physical Char cteristics

All ratings given in this data sheet a reab solute, nonsimultaneous ratings. It is the equipment designer’s responsibility to ensure that they are not exceeded. The spark gap life depends on circuit conditions such as peak discharge current and duration, charge transfer per discharge and the repetition rate.

Charge transfer, single discharge (8/20 ms waveshape)	0.5C max
Cumulative charge transfer	6000C at 0.81mC per discharge at 1 Hz
Operating temperature	-55 to +125°C
Mechanical shock, half-sine (to B.S. 2011 test Ea)	40g for 4ms
Mounting	screw mounted
Radioactivity	tritium (3H), 5.44 MBq (147 mCi) max per device

Electrical Characteristics Results

Type Number	DC Spark-Over Voltage	Max. Impulse Discharge Curr nt(8/20μs)	Max. Energy Level	Min. Insulation Resistance	Max. Capacitance	Max. power
Type Number	V	KA	J	MΩ	pF	W
GXH05	500±10%	30	60	100	5	60
GXH10	1000±10%	30	60	100	5	60
GXH12	1200±10%	30	60	100	5	60
GXH14	1400±10%	30	60	100	5	60
GXH15	1500±10%	30	60	100	5	60
GXH16	1600±10%	30	60	100	5	60
GXH18	1800±10%	30	60	100	5	60
GXH19	1900±10%	30	60	100	5	60
GXH20	2000±10%	30	60	100	5	60
GXH21	2100±10%	30	60	100	5	60
GXH22	2200±10%	30	60	100	5	60
GXH23	2300±10%	30	60	100	5	60
GXH24	2400±10%	30	60	100	5	60
GXH25	2500±10%	30	60	100	5	60
GXH26	2600±10%	30	60	100	5	60
GXH27	2700±10%	30	60	100	5	60
GXH28	2800±10%	30	60	100	5	60
GXH29	2900±10%	30	60	100	5	60
GXH30	3000±10%	30	60	100	5	60
GXH31	3100±10%	30	60	100	5	60
GXH32	3200±10%	30	60	100	5	60
GXH33	3300±10%	30	60	100	5	60
GXH34	3400±10%	30	60	100	5	60
GXH35	3500±10%	30	60	100	5	60
GXH40	4000±10%	30	60	100	5	60
GXH45	4500±10%	30	60	100	5	60
GXH50	5000±10%	30	60	100	5	60

Dimensions(mm)

Hand Soldering
Solder iron temperature: 350 ± 5 °C
Heating time: 3 seconds max

General attention to soldering
1. High soldering temperatures and long soldering times can causeleaching of the termination, decrease in adherence strength, andthe change of characteristic may occur.
2. For soldering , please refer to the soldering curves aboveHowever , please keep exposures to temperatures exceeding 200 Cto fewer than 50 seconds.
3. Please use a mild flux ( containing less than 0. 2wt % CI ). Also , ifthe flux is water soluble, be sure to wash thoroughly to remove anyresidue from the underside of components that could affectresistance.

1 ) Time shown in the above figures is measured from the point when chip surface reaches temperature.
2 ) Temperature difference in high temperature part should be within 110°C
3 ) After soldering , do not force cool , allow the parts to cool gradually.

Cleaning

When using ultrasonic cleaning , the board may resonate if the output power is too high . Since this vibration can cause cracking or a decreasein the adherence of the termination, we recommend that you use the conditions below.
Frequency: 40KHZ max.
Output power: 20W/liter
Cleaning time: 5 minutes max.

Dimensions

DIM	Millimeters	Inches
A	28±3.0	1.102±0.118
B	6.7±1.0	0.264±0.039
C	0.5±0.05	0.02±0.002
D	Φ2.6±0.5	0.102±0.02

Packaging Information

Symbol	Millimeters	Inches
W	52.5±1.5	2.067±0.059
P	5.0±0.5	0.197±0.02
L1-L2	0.8 max	0.031max
T	6.0±1.0	0.236±0.039
Z	1.2max	0.047max
t	3.2max	0.126max
S	0.8max	0.031max
A	75.0	2.953
B	68.0	2.677
C	255.0	10.039
Quantity:2000PCS / inner box