SPSEMI GSM470C Gas discharge tube Datasheet

SPSEMI
GDT/GSM***C Series
Gas Discharge Tube
GSM***C Series
Features
Electronic stability
Small volume, easy to placement machine operation
Large flow capacity, impact resistant ability
Static electricity capacity, good insulation
Reaction speed is 50 ns - 150 ns
Storage and operating temperature -40~125°C
Applications
ADSL MODEM、FAX、TELEPHONE
RS485、RS232、CAN level of protection
CATV
Power supply prevents thunder common-mode protection
Line cards
Electrical Characteristics
DC
Spark-over
Voltage
(@100V/s)
(V)
Impulse
Spark-over
Voltage
(@1KV/μs)
(V)
Discharge
Current
10hits
(@8/20μs)
(KA)
AC
Discharge
Current
(@50Hz)
(A)
(GΩ)
GSM075C
75±30 %
600
1
1
1
50
1
GSM090C
90±30 %
600
1
1
1
50
1
GSM150C
150±20 %
600
1
1
1
100
1
GSM300C
300±20 %
850
1
1
1
100
1
GSM470C
470±20 %
1100
1
1
1
100
1
GSM600C
600±20 %
1200
1
1
1
100
1
Part Number
REV . 2018 . 02 . 29
www.spsemi.cn
Min.Insulation
Resistance
(@DC)
Max.
Capacitance
(@1MHz)
(pF)
Test Voltage
(V)
Page 1 of 3
SPSEMI
GDT/GSM***C Series
Dimensions
3.2±0 . 2
4.5±0 . 3
0.5
2.7±0 . 2
4.5±0 . 3
3.2±0 . 2
0.5
Dimensions in millimeters
Initial Characteristics
Test Item
Test Method
Specification
DC-Spark-Over Voltage
Vs
Add and measure the DC Voltage gradually
Maxto get the discharge threshold voltage.
The measuring current is 1mA/1 second max.(1sec ) .(1mA)
It depands on each spec.
Insulation
Resistance
Measure the insulation resistance of two end of
leadwire under the specified DC voltage.
Capacitance C(pF)
Electrostatic Capacitance under the test condition
of 1KHz,DC 6V(max).
1GΩ min.
1.0pF max.
Surge Characteristics
Test Item
Test Method
Specification
Surge withstand capability
In the glass tube ends in 8/20 us surge tester, applying the model that
corresponds to the impact resistance current, time interval for the
60 s of plus or minus the test 5 times. Test the dc voltage,
insulation resistance, static capacitance and check the appearance.
DC spark-over voltage
JSE: △ Vs/Vs ≦ 30%
Surge life test
Apply 10KV voltage charged in 1500pF condenser and
apply the current to the specimen,200 times at 10
seconds of intervals.
Within standard mentioned in
Initial Characteristics.
REV . 2018 . 02 . 29
www.spsemi.cn
Page 2 of 3
SPSEMI
GDT/GSM***C Series
Enviromental Characteristics
Test Item
Test Method
Specification
Cold resistance
After -40±3℃
(1000hrs) / room temp.,normal humidity(4 hrs)
cycle, measure the properties.
Within standard mentioned in
Initial Characteristics.
Heat resistance
After 125±2℃
(1000hrs) / room temp.,normal humidity(4 hrs)
cycle, measure the properties.
Within standard mentioned in
Initial Characteristics.
Temperature resistance
After 85±2℃
RH85%(1000hrs) / room temp.,normal humidity(4
hrs) cycle, measure the properties.
Within standard mentioned in
Initial Characteristics.
Temperature period
25 times repetition of cycle -40±3℃
(30 Min.),roon temp., (4 Min.), 125±2 ℃ (30Min.),
room temp., normal humidity(4hrs) .
Within standard mentioned in
Initial Characteristics.
Tensile strength
Apply 2.5kgs load approximately 30 seconds, then check
for pull-out and breaking of the lead wire.
Within standard mentioned in
Initial Characteristics.
Bending strength
Bend the lead wire, with jig which radius is 0.75~0.8mm, at the point
of 2mm from the body, under 0.25 kgs load applied at the right angle
the direction of theamis and get the bent lead wire back to its
original poing after the procedure was repeated 2times.
Within standard mentioned in
Initial Characteristics.
Resistance to soldering
attachment
( by solder dip )
Apply flux and immerse in molten solder, up to the point of
3mm from the body,for 5 sec. (235 ℃ ±5 ℃ ). Wash
the leadwire and check for soldering adhesion.
Lead wire is evenly covered by
solder over 90%.
Resistance to soldering
heat
( by solder dip )
Apply flux and immerse in molten solder, up to the point of 3mm
from the body,for 5 sec. (235 ℃ ±5 ℃ ). Wash the leadwire
and check forsoldering adhesion.)
Within standard mentioned in
Initial Characteristics.
Recommended wave slodering profile
REV . 2018 . 02 . 29
www.spsemi.cn
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