W209001JB [TTELEC]
Vitreous Enamelled Wirewound Resistors; 釉瓷线绕电阻器
| 型号： | W209001JB |
| 厂家： | 
TT Electronics |
| 描述： | Vitreous Enamelled Wirewound Resistors |
| 文件： | 总3页 (文件大小：199K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Vitreous Enamelled Wirewound Resistors
IRC Wire and Film Technologies Division
W20 Series
• Rugged all-welded construction
• High purity ceramic substrate
• Impervious lead-free vitreous enamel coating
• High stability and high reliability
• Suitable for harsh environments
• Overload charcteristics ideal for protection circuits
• Lead-free, RoHS-compliant construction
Specifications
Part
Number
Power rating
@25°C
Resistance
Range
(Ohms)
Tolerance
(±±)
TCR
(±ꢀꢀmꢁ°C)
Limiting Element
Voltage
Thermal
Imꢀedance1
(°Cꢁwatt)
(Watts)
(Volts)
W21
3.0
1 - 10K
1
2
5
1
2
5
1
2
5
1
2
5
1
2
5
Typical: <+75
Maximum: +200
100
160
200
500
750
88
58
44
29
22
0.5 - 10K
0.1 - 10K
1 - 15K
W215
W22
5.0
Typical: <+75
Maximum: +200
0.5 - 15K
0.1 - 15K
1 - 22K
7.0
Typical: <+75
Maximum: +200
0.5 - 22K
0.1 - 22K
1 - 60K
W23
10.0
14.0
Typical: <+75
Maximum: +200
1 - 60K
0.15 - 60K
1 - 100K
1 - 100K
0.15 - 100K
W24
Typical: <+75
Maximum: +200
Notes
1 See temperature rise graph
Application Notes
The terminations should not be bent closer than 1.6mm from the body of the resistor, and the recommended
bend radius is 1.2mm. Terminations are solderable to within 4mm from the resistor body.
When cold, vitreous enamel has excellent insulation resistance. In common with all insulation materials, the
specific resistance of the enamel decreases with increased temperatures. Therefore, resistors operated at
near-maximum temperature cannot be considered as insulated and should not be used in contact with any
conductive 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.
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 printing.
A subsidiary of
TT electronics plc
W20 Series Issue November 2006
• 736 Greenway Road Boone, North Carolina 28607-1860
Telephone: 828 264 8861 • Facsimile: 828 264 8866 • Website: www.irctt.com
© IRC Wire and Film Technologies Division
IRC Wire and Film Technologies Division
Environmental Performance
Test
Maximum
5
Tyꢀical
4
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
µV/V
Ω
Load at commercial rating: 1000 Hours at room temperature
Dry heat: 1000 hours at 200°C
Shelf life: 12 months at room temperature
Short term overload
2
1
0.03
0.02
0.2
1.0
Climatic
0.5
0.2
Long term damp heat
0.05
0.02
0.2
Temperature rapid change
Resistance to solder heat
Vibration and bump
0.5
0.25
0.03
0.05
zero
>0.1GΩ
500 min.
0.25
Noise (in a decade of frequency)
Insulation resistance
zero
>0.1GΩ
500 min.
-55 to +200
Dielectric withstanding voltage
Operating temperature range
V
°C
Construction
Temperature Rise Curve
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, and the
vitreous enamel protective coating is then applied.
400
W21
W215
W22
W23
W24
300
200
100
Terminations
Copper-clad steel wire, nickel-plated and
solder-coated.
Marking
The resistors are legend-marked with type
reference, resistance value and tolerance.
0
5
10
Dissipation (watts)
15
20
Solvent resistance
The body protection and marking are resistant to
all normal industrial cleaning solvents suitable for
printed circuits.
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 printing.
A subsidiary of
TT electronics plc
W20 Series Issue November 2006
• 736 Greenway Road Boone, North Carolina 28607-1860
© IRC Wire and Film Technologies Division
Telephone: 828 264 8861 • Facsimile: 828 264 8866 • Website: www.irctt.com
IRC Wire and Film Technologies Division
Dimensions (mm)
Tyꢀe
L
D
f
ød
(nom.)
Weight
(g)
(max.)
(max.)
(min)
W21
12.7
5.6
22.75
0.8
1.0
W215
W22
W23
W24
22.0
22.2
38.0
53.5
7.0
8.0
8.0
8.0
23.1
23.1
30*
0.8
0.8
0.8
0.8
2.0
2.0
3.5
5.0
d dia
D
L
f
30*
Notes
1 * W23 and W24 Series resistors are supplied loose-packed in boxes.
Ordering Information
Specify type, resistance, tolerance and packaging.
This example is for a W21, 9000Ω, 5%, taped and
ammo-packed.
Packaging
W21 and W215 resistors are taped and packaged in
ammo packs; W22 resistors are on tape-and-reel;
W23 and W24 resistors are loose-packed in boxes.
Standard quantities per package
All W20 Series resistors are RoHS-compliant.
W21 9001
J
A
Samꢀle Part No.
Tyꢀe
Pack-
aging
Code
W21
W215
W22
W23
W24
IRC Style
W20
Ammo
pack
A
1000
750
-
-
-
Resistance Value
(≥1007 - First 3 significant digits
plus 4th digit multiplier)
Example:
Reel
Box
R
B
-
-
-
-
700
-
-
-
50
25
1007 = 1000;
10007 = 1001;
150K7 = 1503.
(>1007 - "R" is used to designate decimal)
A
Example:
6
517 = 51R0,
17 = 1R00;
0.257 = R250
f
f
1
2
10 0.5
Tolerance
F = 1ꢀ,
G = 2ꢀ,
J = 5ꢀ
Tyꢀe
A
W21 63 2
W215 73 2
W22 73 2
Packaging
(A = ammo; R= reel; B = box)
f
- f ≤1.4mm
2
1
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 printing.
A subsidiary of
TT electronics plc
W20 Series Issue November 2006
© IRC Wire and Film Technologies Division • 736 Greenway Road Boone, North Carolina 28607-1860
Telephone: 828 264 8861 • Facsimile: 828 264 8866 • Website: www.irctt.com
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