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PDF W215 Data sheet ( Hoja de datos )
| Número de pieza | W215 | |
| Descripción | Vitreous Enamelled Wirewound Resistors | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de W215 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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Vitreous Enamelled
Wirewound Resistors
W20 SERIES
● All welded construction
● High purity ceramic substrate
● Impervious lead free vitreous enamel coating
● High power dissipation for size
● High stability and reliability
● Suitable for harsh environments
● Overload characteristics ideal
for protection circuits
Electrical Data
Commercial
Power rating at 25°C
Resistance range at
TCR (-55° to 200°C)
1% tolerance
2% tolerance
5% tolerance
watts
ohms
ohms
ohms
pp/°C
W21
3.0
1 to 10k
0.5 to 10k
0.1 to 10k
W215
5.0
1 to 15k
0.5 to 15k
0.1 to 15k
Typically: <+75
W22
W23
W24
7.0
10.0
14.0
1 to 22k
1 to 60k
1 to 100k
0.5 to 22k
1 to 60k
1 to 100k
0.1 to 22k 0.15 to 60k 0.2 to 100k
Maximum: +200
www.DataSheet4U.com
Approved BS CECC 40-201-002
Power rating at 25°C
Power rating at 70°C
Resistance range at 1% tolerance
2% tolerance
5% tolerance
TCR (-55° to 200°C)
Style
watts
watts
ohms
ohms
ohms
ppm/°C
Applicable to commercial and approved ranges
Limiting element voltage
volts
Standard values
Thermal impedance
°C/watt
Ambient temperature range
°C
JB HB KB LB MB
2.9
5.0
7.0
10.0
14.0
2.5 4.3 6.0 9.0 12.0
1 to 10k
1 to 15k
1 to 20k
1 to 56k
1 to 100k
0.5 to 10k 0.5 to 15k 0.5 to 20k
1 to 56k
1 to 100k
0.1 to 10k 0.1 to 15k 0.1 to 20k 0.15 to 56k 0.2 to 100k
≥5 ohms < 10 ohms: ±400
≥10 ohms: ±200
100 160 200 500
E24 preferred. Other values to special order
88 58 44 29
-55 to 200
750
22
Physical Data
Dimensions (mm) & weight (g)
Type
L max D max
W21
W215
12.7
22.0
5.6
7.0
W22
22.0
8.0
W23
38.0
8.0
W24
53.5
8.0
f min
22.75
23.1
23.1
-
-
d nom
0.8
0.8
0.8
0.8
0.8
Wt.nom
1
2
2
3.5
5
d dia
D
L
f
400
W21 W215
W24 W23
W22
300
200
100
0
0 5 10 15 20
Dissipation – Watts
CONSTRUCTION
A high purity ceramic substrate is assembled with interference fit end caps to which
are welded the termination wires. The resistive element is wound on the substrate
and welded to the caps; the vitreous enamel protective coating is then applied.
TERMINATIONS
Material
Copper clad steel wire, nickel plated and solder-coated.
Strength
The terminations meet the requirements of IEC 68.2.21.
Solderability The terminations meet the requirements of IEC 115-1,–
Clause 4.17.3.2.
Length
W23’s and W24’s are not supplied on tape.
Minimum lead length is 30 mm.
MARKING
The resistors are legend marked with type reference, resistance value and tolerance.
Values are marked in accordance with IEC 62.
SOLVENT RESISTANCE
The body protection and marking are resistant to all normal industrial cleaning
solvents suitable for printed circuits.
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, England Tel: 01670 822181 Fax: 01670 829465 Web: http://www.Welwyn-TT.co.uk
Issue A 07/99
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet W215.PDF ] | |
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