W219K1GA [TTELEC]
Vitreous Enamelled Wirewound Resistors; 釉瓷线绕电阻器
| 型号： | W219K1GA |
| 厂家： | 
TT Electronics |
| 描述： | Vitreous Enamelled Wirewound Resistors |
| 文件： | 总4页 (文件大小：213K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Vitreous Enamelled
Wirewound Resistors
W20 Series
• High stability and reliability
• High purity ceramic substrate
• High power dissipation for size
• Suitable for harsh environments
• Rugged all-welded construction
• Impervious lead free vitreous enamel coating
• Overload characteristics ideal for protection circuits
Electrical Data
Limiting
Element
Voltage
(volts)
Operating
Temperature
Range
Power Rating
@ 25°C
Resistance
Range
(ohms)
TCR
(-55°C to 200°C)
(±ppm/°C)
Thermal
Impedance*
(°C/watt)
IRC
Type
Tolerance
(±%)
(watts)
(°C)
Typical: <+75
Maximum: +200
1 - 10K
0.5 - 10K
0.1 - 10K
1 - 15K
1
2
5
1
2
5
1
2
5
1
2
5
1
2
5
W21
3.0
5.0
100
160
200
500
750
88
58
44
29
22
-55 to 350
-55 to 350
-55 to 350
-55 to 350
-55 to 350
Typical: <+75
Maximum: +200
W215
W22
W23
W24
0.5 - 15K
0.1 - 15K
1 - 20K
Typical: <+75
Maximum: +200
7.0
0.5 - 20K
0.1 - 20K
1 - 60K
Typical: <+75
Maximum: +200
10.0
14.0
1 - 60K
0.15 - 60K
1 - 100K
1 - 100K
0.2 - 100K
Typical: <+75
Maximum: +200
*See temperature rise graph
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
W20 Series Issue December 2008 Sheet 1 of 4
Vitreous Enamelled
Wirewound Resistors
Physical Data
D
d dia.
L
f
Dimensions (mm) and Weight (g)
L
max
D
max
f
d
nom
Wt.
nom
IRC Type
min
W21
12.7
22.0
22.2
38.0
53.5
5.6
7.0
8.0
8.0
8.0
22.75
23.1
23.1
---
0.8
0.8
0.8
0.8
0.8
1
2
W215
W22
W23
W24
2
3.5
5
---
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.
Length: W23’s and W24’s are not supplied on tape. Minimum length is 30mm.
MARKING
The resistors are legend marked with type reference, resistance value and tolerance.
SOLVENT RESISTANCE
The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed
circuits.
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
W20 Series Issue December 2008 Sheet 2 of 4
Vitreous Enamelled
Wirewound Resistors
Temperature Rise Curve
400
W22 W215 W22
W23
W24
300
200
100
0
5
10
15
20
Dissipation (watts)
Environmental Data
Actual Performance
Test
Maximum
Typical
3.5
Load at Commercial Rating: 1000 Hours @ room temperature
Dry Heat: 1000 hours @ 200°C
Shelf Life: 12 months at room temperature
Short Term Overload
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
µV/V
∆R%
ohms
volts
5
2
1
0.03
.47
0.02
0.1
Climatic
0.5
0.2
Long Term Damp Heat
0.05
0.5
0.02
0.2
Temperature Rapid Change
Resistance to Solder Heat
Vibration and Bump
0.25
0.25
zero
0.4
0.03
0.05
zero
0.05
>1 G ohm
500 min
Noise (In a Decade of Frequency)
Robustness
Insulation Resistance
>1 G ohm
500 min
Voltage Proof
APPLICATION NOTES
The terminations should not be bent closer than 1.6mm from the body, and the recommended minimum bend
radius is 1.2 mm. Terminations are solderable to within 4mm from the body.
When cold, vitreous enamel has excellent insulation resistance. In common with all insulations the specific re-
sistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum
temperature cannot be classed as insulated and should not be used in contact with any conducting material.
Care must be taken when determining clearance distance between the resistor body and printed circuit board or
other components to ensure these are not overheated. Resistance is measured 6mm from the resistor body.
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
W20 Series Issue December 2008 Sheet 3 of 4
Vitreous Enamelled
Wirewound Resistors
Packaging
For W21, W215, and W22 resistors the standard method of packaging is taped in ammo packs. Alternatives
available by special request are:
- Taped and reeled
- Loose packed in boxes (minimum lead length 30mm). W23’s and W24’s are available only as loose
packed in boxes.
6
b
6
f
f
2
1
10 ± 0.5
Type
W21
A
63 ± 2
73 ± 2
73 ± 2
W215
W22
Body location:
f
f
1 - 2
≤ 1.4mm
Standard Quantities Per Package
Type
Ammo Pack
Reel
Code
A
W21
W215
600
W22
W23
---
W24
---
1000
1000
200
500
700
100
300
R
800
---
---
Small Box
Large Box
SB
LB
100
50
25
800
500
---
---
Ordering Data
Specify type, reference, etc. as indicated in this example of
W21, 0.1KΩ, 5%, taped and ammo packed.
Sample Part No.
IRC Type
W21
9K1
J
A
Value
Tolerance Code
J = 5%, G = 2%, F = 1%
Packaging Details
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
W20 Series Issue December 2008 Sheet 4 of 4
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