Gas Discharge Tube：GQF Series
：
SMD 3-Electrodes
Φ5*7.2
mm Symmetrical Type
Features
1. RoHS compliant
2. Rugged ceramic-metal construction
3. DC spark-over voltage: 230~1100V
4. Low capacitance
5. Agency recognition: UL/cUL
Recommended Applications
1. Data transmission lines
2. Communication lines
3. CATV system
4. Power distribution system
5. Power supplier
6. Test equipment
7. Instrumentation circuits
Part Number Code
G
1
Q
2
F
3
3
4
R
5
0
6
7
7
5
8
N
9
B
10
W
11
12
13
Product Code
G
THINKING Gas
Discharge Tube
Electrode Number
3R
3 Electrodes
Lead Wire Style
N
No Lead
Packaging
B
T
R
Bulk
Ammo
Taping
Reel
Taping
Internal Control
Code
Type Series (size)
QF
Φ5.0*T7.2
DC
Spark-over
Voltage
070
230
600
14B
25B
70V
230V
600V
1400V
2500V
W
Product Type
SMD Symmetrical Type
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specification are subject to change without notice.
1
www.thinking.com.tw
2010.09
Gas Discharge Tube：GQF Series
：
SMD 3-Electrodes
Φ5*7.2
mm Symmetrical Type
Characteristics
Max. DC
Spark-over
Voltage
Type
(100V/S)
(V)
GQF3R230NRW
GQF3R250NRW
GQF3R350NRW
GQF3R400NRW
GQF3R420NRW
GQF3R470NRW
GQF3R600NRW
GQF3R800NRW
GQF3R11BNRW
100V/
µs
1KV/
µs
Max. Impulse
Breakdown
Voltage
Impulse Discharge
Current (8/20µs)
1
Time
(KA)
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
10
Times
Impulse
Discharge
Life
(10/1000µs)
Nom. AC
Discharge Current
50Hz,
1S
SINGLE
9 CYCLES
DC
Holdover
Voltage
Minimum
Insulation
Resistance
Maximum
Capacitance
(1MHz)
Safety
approvals
200A
Times
<150ms
(V)
600
600
650
700
700
800
900
1150
1450
(V)
700
700
750
800
800
900
1000
1400
1750
(A)
5
5
5
5
20
20
20
20
20
20
20
20
20
(V)
135
135
135
135
135
135
135
135
135
(G )
(pF)
UL
1449
UL
497B
230±20%
250±20%
350±20%
400±20%
420±20%
470±20%
600±20%
800±20%
1100±20%
√
√
√
√
1
2
√
√
√
√
√
300
5
5
5
5
5
Note 1: UL / 497B→ File No. E245070 , UL / 1449 3rd→ File No. E314979
Note 2: Insulation resistance test conditions:
DC Breakdown Voltage
145-400V
420-800V
1000-2000V
DC Measuring Voltage
100V
250V
500V
Note 3: DC Breakdown Voltage @ 100V/us for L1 / lL2 to ground and L1 to L2
Note 4: Impulse Breakdown Voltage @ 100V/us and 1000V/us for L1 / L2 to ground
Dimension
7.2±0.3
5.0±0.1
0.4
1.5
0.4
5.0±0.1
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specification are subject to change without notice.
2
www.thinking.com.tw
2010.09
Gas Discharge Tube：GQF Series
：
SMD 3-Electrodes
Φ5*7.2
mm Symmetrical Type
Marking
GQF
3R230W
Packaging
Taping
P0
D
E
F
W
t
P
K
Quantity： 900pcs per reel (13”)
：
”
Unit: mm
ITEM
Spec.
Tol.
P
12.0
±0.1
P0
4.0
±0.1
W
16.0
±0.3
F
7.5
±0.1
E
1.75
±0.1
D
Φ1.55
±0.05
K
5.5
±0.1
t
0.5
±0.05
330 ± 4.0
>1.5
100
typ.
18typ.
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specification are subject to change without notice.
3
www.thinking.com.tw
2010.09
Gas Discharge Tube：GQF Series
：
SMD 3-Electrodes
Φ5*7.2
mm Symmetrical Type
Storage Conditions of GDT
(I) Storage conditions:
1. Storage Temperature: -10
℃
~ +40
℃
.
2. Relative humidity:
≦
75%RH.
3. Gas discharge tube must be kept away from sunlight and stored in a non-corrosive atmosphere.
(II) Shelf life: 1 year
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
All specification are subject to change without notice.
4
www.thinking.com.tw
2010.09
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