Gas Discharge Tube Diodes
2R075~2R800(T,S)B/D-8 Series
GDTs (Gas Discharge Tubes) are placed in front of, and in
parallel with, sensitive telecom equipment such as power lines,
communication lines, signal lines and data transmission lines
to help protect them from damage caused by transient surge
voltages that may result from lightning strikes and equipment
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in normal operation. However, in the event of an overvoltage
surge, such as a lightning strike, the GDT switches to a low
impedance state and diverts the energy away from the sensitive
equipment.
unit:(mm)
0.8±0.05
-*:
6±0.3
66±4
6±0.3
GDTs offer a high level of surge protection, a broad voltage
range, low capacitance, and many form factors including
new surface mount devices, which makes them suitable for
applications such as MDF (Main Distribution Frame) modules,
high data-rate telecom applications (e.g. ADSL, VDSL), and
surge protection on power lines. Their low capacitance also
results in less signal distortion. When used in a coordinated
circuit protection solution with PTC devices, TSS thyristor surge
protection devices, and MOV (Metal Oxide Varistor) devices,
they can help equipment manufacturers meet
Dimension
4±0.5
4±0.5
8±0.3
8±0.3
(T)Series
-*:
(S)Series
Features
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All data is subject to change,Please check our data sheets at ZZZOHLGLWHFKFRP for updates.
GDT 01
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DC Sparkover voltage
Maimum
Impulse sparkover voltage
Impuise life
YV
NYXV
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Type number
V
V
576%
±20%
576%
90±20%
576%
±20%
576%
230±20%
576%
300±20%
900
576%
±20%
1000
576%
±20%
1000
576%
±20%
1200
576%
±20%
1200
576%
±20%
1300
576'
±20%
576'
±20%
576'
90±20%
576'
±20%
576'
230±20%
576'
300±20%
576'
±20%
1000
576'
±20%
1000
576'
±20%
1200
576'
±20%
1200
576'
±20%
1300
576'
±20%
Times
Minimum
Insulation
resistance
Test
Voltage
Maximum
Capacitance
Maximum surge
Discharge
Current
Altermationg
Dischare
Curiren
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GDT 02
All data is subject to change,Please check our data sheets at ZZZOHLGLWHFKFRP for updates.
Pb – Free assembly
tP
TP
Critical Zone
TL to T P
Ramp-up
Pre Heat
s(min)
)
-Temperature Max (T
s(max)
-Time (Min to Max) (t
s
150°C
)
200°C
)
Tem p er at u r e
-Temperature Min (T
60 – 180 secs
Average ramp up rate (Liquidus Temp
(TL) to peak
3°C/second max
TS(max) to TL - Ramp-up Rate
5°C/second max
-Temperature (T L) (Liquidus)
217°C
-Temperature (t L)
60 – 150 seconds
+0/-5
tL
Ramp-down
Preheat
TS(min)
tS
25
Peak Temperature (T P)
260
Time within 5°C of actual peak
Temperature (t p )
10 – 30 seconds
Ramp-down Rate
TL
TS(max)
time to peak temperature
(t 25ºC to peak)
Time
°C
6°C/second max
)
P
Time 25°C to peak Temperature (T
8 minutes Max.
Do not exceed
260°C
Soldering Parameters - Wave Soldering (Thru-Hole Devices)
Recommended Process Parameters:
280
Wave Parameter
260
240
Lead-Free Recommendation
Preheat:
220
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
200
180
160
140
Temperature Minimum:
100° C
Temperature Maximum:
Preheat Time:
150° C
60-180 seconds
120
100
Solder Pot Temperature:
280° C Maximum
Solder Dwell Time:
2-5 seconds
80
60
40
240
230
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
20
0
0
30
20
10
Temperature (°C) - Measured on bottom side of board
300
Time (Seconds)
Cooling Time
Preheat Time
Dwell Time
Soldering Parameters - Hand Soldering
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
All data is subject to change,Please check our data sheets at ZZZOHLGLWHFKFRP for updates.
GDT 03
Packaging Dimensions
For 'T' Type Axial Lead Items
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