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參數(shù)資料
| 型號： | GC |
| 廠商： | TT Electronics / Welwyn |
| 英文描述： | High Value Thick Film Resistors |
| 中文描述： | 高價值的厚膜電阻 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 119K |
| 代理商： | GC |
High Value Thick Film
Resistors
GC Series
High working voltage to 10kV
Value up to 1G ohm
Custom product available
High stability thick film
GC55
GC65
GC70
Power rating at 70°C
watts
0.25
0.5
1.0
Resistance range
ohms
47k to 900 meg
47k to 1G
Limiting element voltage
Volts dc or ac Peak
1700
3500
10000
Isolation voltage
volts
700
TCR (20°C to 70°C)
ppm/°C
100
Resistance tolerance
%
1, 2, 5
Values
E24 & E96 preferred
Thermal impedance
°C/watt
140
90
70
Ambient temperature range
°C
- 55 to 155
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com
Electrical Data
Issue B 03.02
A subsidiary of
TT electronics plc
Welwyn Components
199
Construction
Thick film material is fired on to high grade ceramic rods.
Nickel plated steel caps are force fitted and the termination
wires are welded to the caps. The value is obtained by a
helical cut in the film and finally the resistor body is given a
high temperature protective coating.
Terminations
Material
Solder coated copper wire.
Strength
The terminations satisfy the requirements of
IEC 68.2.21.
Solderability
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2.
Marking
1% tolerance resistors are colour coded with 5 bands, 2%
and 5% tolerance have 4, IEC 62 colours are used.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning fluids suitable for printed circuit boards.
Dimensions (mm) and Weight (g)
PCB
Min
mounting
bend
Wt
Type
L max.
D max.
f min.
d nom.
centres
radius
nom.
GC55
6.2
2.5
21.0
0.6
10.2
0.6
0.3
GC65
9.0
3.6
19.6
0.8
13.7
1.2
0.6
GC70
14.5
5.3
23.6
0.8
20.3
1.2
1.1
Physical Data
L
D
f
d
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