FA84 [ETC]
Flameproof Power Oxide Resistors; 矿用隔爆型电源氧化物电阻器
| 型号： | FA84 |
| 厂家： | 
ETC |
| 描述： | Flameproof Power Oxide Resistors |
| 文件： | 总2页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Flameproof Power
Oxide Resistors
Welwyn Components
FA80 Series
Rugged metal oxide film
•
Flameproof protection
•
Low operating temperature
•
Electrical Data
FA84
Power rating at 70°C
Resistance range
Limiting element voltage
TCR
watts
ohms
volts
2.0
16R - 100K
350
500
ppm/°C
%
Resistance tolerance
Values
5, 10
E24 preferred
90
Thermal impendance
Ambient temperature range
°C/Watt
°C
-55 to 155
Physical Data
Dimensions (mm) & Weight (g)
PCB
mounting
Min.
bend
d
Type
L Max
14.5
D Max
5.1
f min
23.6
d nom
0.8
centres
radius Wt.nom
D
L
f
FA84
20.3
1.2
1.1
Construction
Marking
Resistors are colour coded with 4 bands.
The resistance element is deposited on a high purity ceramic
rod. End caps are force fitted and termination wires welded to
the caps. The element is adjusted to the required resistance
value by a helical cut; finally the cement protection is applied
to the resistor body before marking with indelible ink.
IEC 62 colours are used.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Terminations
Material
Solder-coated copper wire.
Flammability
Strength
The terminations meet the requirements of
IEC 68.2.21
The resistors will not burn or emit incandescent particles
under any condition of applied temperature or power
overload.
Solderability The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
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.
A subsidiary of
TT electronics plc
© 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
Issue B · 03.02
151
Flameproof Power
Oxide Resistors
FA80 Series
Welwyn Components
Performance Data
Maximum
Load at 35% rated power: 1000 hrs at 125°C
Shelf life: 12 months at room temperature
Derating from rated power at 70°C
Climatic
∆R %
∆R %
3
2
Zero at 235°C
∆R %
1
40/125/56
0.5
Climatic category
Temperature rapid change
Resistance to solder heat
∆R %
∆R %
0.5
Packaging
Standard Quantities Per Package
All FA84 resistors are supplied tape packed ready for
loading onto automatic sequencing and insertion
machines.
Type
FA80
1000
1000
Reel
Ammo pack
The standard taping method and critical dimensions are
shown in Figure 1.
Component wires will not protrude beyond the outside
edge of the tapes.
10
All taped resistors will be supplied either on reels or in
ammopacks, depending upon ordered quantities.
f1
f2
67
6
6
Body Location f1 – f2 ≤ 1.4 mm
© 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
Issue B · 03.02
152
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