Gas Discharge Tube Catalogue - Thinking Electronics Industrial Co

Gas Discharge Tube: GF4 Series
SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type
 Features
1. RoHS & HF compliant
2. SMD type series
3. DC spark-over voltage: 75~2000V
4. Low capacitance
5. Agency recognition :UL / cUL
6. Operating temperature : -40℃ ~ +85℃
Storage temperature: -40℃ ~ +115℃
 Recommended Applications
1. Cable Modem
2. xDSL
3. Set-Top Box
4. TV sets
5. Power supplier
6. Consumer electronics
 Part Number Code
G
F
4
2
R
0
7
5
M
B
M
1
2
3
4
5
6
7
8
9
10
11
Product Code
G
Electrode Number
2R
THINKING Gas
Discharge Tube
Lead Wire Style
2 Electrodes
Size
Φ4.2 × T4 mm
F4 Φ4.2 × T3.5 mm
for low profile
type
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
M
DC Spark-over
Voltage
075
230
600
14B
20B
No Lead
12
Internal Control
Code
Packaging
B
Bulk
R
Reel
Taping
13
Type
75V
230V
600V
1400V
2000V
10
M
SMD Round Type
L
Low Profile Type
www.thinking.com.tw
2014.08
Gas Discharge Tube: GF4 Series
SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type
 Characteristics
Maximum Impulse
Breakdown
Voltage
Max. Impulse
Discharge
Current
(8/20μs)
100V/S
100V/μs
1KV/μs
1
time
(V)
(V)
(V)
GF42R075MRM
75±20%
700
800
52
√
GF42R090MRM/L
90±20%
700
800
52
√
GF42R145MRM/L
145±20%
700
800
52
√
GF42R230MRM/L
230±20%
600
700
80
√
GF42R250MRM/L
250±20%
600
700
80
√
GF42R300MRM/L
300±20%
600
700
150
√
GF42R350MRM/L
350±20%
650
800
150
√
GF42R400MRM/L
400±20%
700
800
150
GF42R470MRM/L
470±20%
800
900
150
GF42R600MRM/L
600±20%
900
1000
150
DC
Spark-over
Voltage
Part No.
Impulse
Life
(10/1000μs)
Normal
Alternating
Discharge
Current
DC
Holdover
Voltage
100A
50Hz
1Sec
<150ms
(Times)
(A)
(V)
10
times
(KA)
5
3
300
3
Minimum
Insulation
Resistance
Maximum
Capacitance
(1MHz)
(GΩ)
(pF)
1
Safety
Approvals
UL
1449/
cUL
√
0.5
√
√
GF42R800MRM
800±20%
1300
1400
150
√
GF42R10BMRM
1000±20%
1500
1600
150
√
GF42R12BMRM
1200±20%
1700
1800
150
√
GF42R15BMRM
1500±20%
2000
2100
150
√
GF42R18BMRM
1800±20%
2500
2600
150
√
GF42R20BMRM
2000±20%
2700
2800
150
√
3
2
100
2
UL
497B
Note1: L is for low profile type
Note2: UL 497B File No: E245070, UL 1449 3rd File No: E314979
Note3: Insulation resistance test condition:
DC Spark-over Voltage
DC Measuring Voltage
70-90V
50V
120-400V
100V
470-800V
250V
1000-2000V
500V
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
11
www.thinking.com.tw
2014.08
Gas Discharge Tube: GF4 Series
SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type
 Dimension
(Unit: mm)
Low Profile Type
3.5 ± 0.2
3.5 ± 0.2
4.2 ± 0.2
4.2 ± 0.2
 Recommended Pad Size
(Unit: mm)
3.5
5.0
1.3
 Marking
75
Example:GF42R075MRM
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
12
www.thinking.com.tw
2014.08
Gas Discharge Tube: GF4 Series
SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type
 Packaging
 Taping
P0
E
D
F
W
t
P

K
For Φ4.2 x T4 mm type :
Quantity: 900pcs per reel (13”)

Item
P
Spec.
Tolerance
(Unit: mm)
P0
W
F
E
D
12.0
4.0
±0.1
±0.1
K
t
16.0
7.5
1.75
Φ1.55
4.6
0.5
±0.3
±0.1
±0.1
±0.05
+0.2,-0.1
±0.05
P0
W
F
E
D
K
For Φ4.2 x T3.5 mm low profile type :
Quantity: 2,000pcs per reel (13”)
Item
P
(Unit: mm)
t
Spec.
8.0
4.0
16.0
7.5
1.75
Φ1.55
3.9
0.4
Tolerance
±0.1
±0.1
±0.3
±0.1
±0.1
±0.05
±0.1
±0.05
>1.5 typ.
330±4.0
100 typ.
18 typ.
 Warehouse Storage Conditions of Products
 Storage Conditions:
1. Storage Temperature: -10℃~+40℃
2. Relative Humidity: ≦75%RH
3. Keep away from corrosive atmosphere and sunlight.
 Period of Storage: 1 year
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
13
www.thinking.com.tw
2014.08