RA1694A270R0KB10 [VISHAY]
Resistor, Wire Wound, 270ohm, 10% +/-Tol, 75ppm/Cel,;
| 型号： | RA1694A270R0KB10 |
| 厂家： | 
VISHAY |
| 描述： | Resistor, Wire Wound, 270ohm, 10% +/-Tol, 75ppm/Cel, |
| 文件： | 总4页 (文件大小：303K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RA
Vishay Sfernice
Adjustable Wirewound Enamelled Resistors
FEATURES
• 21 W to 180 W at 25 °C
• NF C 93-214
- RBA 13 x 70
- RBA 20 x 117
- RBA 25 x 168
”B” Ring
• Compliant to RoHS directive 2002/95/EC
The ceramic tubular core ensures high dissipation capacity and excellent resistance to thermal shock and overload. The resistor
winding is evenly coiled on the core and protected by an enamel coating. A longitudinal opening provides for one or more
electrical connections by means of sliding collars equipped with a tongued connector.
DIMENSIONS in millimeters
WELDED STAINLESS STEEL 304 L BAND “B”
A
WELDED STAINLESS STEEL 304 L COLLAR “AN” TYPE ꢁ
M
K
Ø S
Ø 4.ꢀ
F
Ø C
R
V
Z
D
O
X
Ø B
Ø B
E
Ø C
T
A
SCREWED STAINLESSSTEEL304 L “CS” TYPE ꢁ
A
P
H
Ø B
ꢀ6
Q
L
N
ꢁ5
U
N - 0
- 4
RA
Ø B
Ø C
E + 0.5 F + 0.5
H
J
L - 0
- 4
M
CONNECTION
A
ꢀ
D
K MAX.
SERIES
ꢁ3 x 70
MAX.
MIN.
+ 0
7
+ 0
10.5
12
ꢁ
MAX.
AN-B (1)
AN-B
70
94
16
19.5
23
5
9
16 0.5
17.5 0.5
21 0.7
-
-
19.5
23
24
29.5
31.5
34
-
56
2
2
2
-
ꢁ6 x 94
8
-
78
98
-
ꢀ0 x ꢁꢁ7
ꢀ5 x ꢁ38
ꢀ5 x ꢁ68
30 x ꢀ50
AN-B
117
138
168
250
9
8
14
-
25
-
-
AN-B-CS
AN-B-CS
AN-B-CS
28
12
12
17
23.5
23.5
26
1
1
8
15
27
27
30
27.5
27.5
30
199
229
117
147
2
169
199
287
28
8
15
34
2
33
1
8
18
36.5
317 227 2.5
RA
SERIES
O
MAX.
P
ꢁ.5
Q
0.5
AVERAGE UNIT
WEIGHT IN g
CONNECTION
R
S
T
U
V
X
Z
AN-B (1)
AN-B
3.5
5
ꢁ3 x 70
ꢁ6 x 94
24.5
28
-
-
-
-
24 0.5
26.5 0.5
31 0.7
4.2
4.2
4.2
5.7
5.7
5.7
6.35
6.35
6.35
9
-
-
20 0.5 34.5
21 0.5 38
24 0.7 42
1
40
1
70
ꢀ0 x ꢁꢁ7
ꢀ5 x ꢁ38
ꢀ5 x ꢁ68
30 x ꢀ50
AN-B
33
-
-
-
1
116
200
225
415
6
AN-B-CS
AN-B-CS
AN-B-CS
38.5
38.5
43.5
50
50
60
24
24
25
33.5
33.5
36
1
1
6.5
6.5
9
28
28
33
1
1
1
51 1.5
51 1.5
55 1.5
6
9
6
1
13
5
Note
(1) Also with CS and CR collars; see RW datasheet
www.vishay.com
118
For technical questions, contact: sfer@vishay.com
Document Number: 50019
Revision: 16-Feb-10
RA
Adjustable Wirewound Enamelled Resistors
Vishay Sfernice
MECHANICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Connections
Vitreous enamel
Ni-Cr wire
B band
33 to 22K
(E6 series)
Resistance Range
Tolerance
AN or CS collar
40 g to 415 g
Standard
10 %
Average Unit Weight
Power Rating
21 W to 180 W at 25 °C
+ 75 ppm/°C (typical)
Temperature Coefficient
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits
- 55 °C + 350 °C
Climatic Category
- 55 °C/+ 200 °C/56 days
PERFORMANCE
TESTS
CONDITIONS
REQUIREMENTS
TYPICAL VALUES AND DRIFTS
10 Pr 5 s
Short Time Overload
Climatic Sequence
2
3
%
%
or 0.05
or 0.05
0.5
%
Voltage < 6000 V
- 55 °C
+ 200 °C
5 cycles
1
%
Insulation resistance > 100M
Humidity
56 days
2 %
or 0.05
0.5
0.5
%
%
(Steady State)
95 % R.H.
Insulation resistance > 100M
Load at Pr
followed by exposure at - 55 °C/15
Thermal Shock
2
2
%
or 0.05
or 0.05
Resistor Strength
200 N 10 N
55/10
%
0.25
%
Vibration
1
%
(1) or 0.05
0.5
%
AN
B
Traction 40 Ncm
Torque 60 Ncm
Terminal Strength
1
%
or 0.05
0.25
%
1000 h at Pr
25 °C
90’/30’
Load Life
5
%
1.5 %
Note
(1) 1 % of total resistance and 2 % between sliding collar and fixed connection
SPECIAL FEATURES
RA STYLE
ꢁ3 x 70
ꢁ6 x 94
ꢀ0 x ꢁꢁ7
ꢀ5 x ꢁ38
ꢀ5 x ꢁ68
30 x ꢀ50
Designation NF C 93-ꢀꢁ4
RBA 13 x 70
-
RBA 20 x 117
-
RBA 25 x 168
-
Power Rating NF C 93-ꢀꢁ4
13 W
21 W
-
25 W
-
50 W
-
at ꢀ5 °C
Maximum Power
Rating at ꢀ5 °C
35 W
50 W
75 W
120 W
180 W
Ohmic Range
(E6, Eꢀ4 series)
33 3.9K
68 3.9K
100 4.7K
150 6.8K
220 10K
330 22K
ADMISSIBLE RATED AMPERAGE
This must in all cases be less than:
Pn(W)
Rn(Ω)
In
=
-----------------
SLIDING COLLAR
Resistors are normally supplied with 1 sliding collar fi tted and locked in a specifi c position.
Additional collars can be supplied and adjusted at the factory to special order (on request). (1)
Note
(1) Quote ohmic value and tolerance of each resistance section, and Rn value.
MAXIMUM ADDITIONAL COLLARS
MODEL
RA
RA
RA
RA
RA
RA
AND TYPE
ꢁ3 x 70
ꢁ6 x 94
ꢀ0 x ꢁꢁ7
ꢀ5 x ꢁ38
ꢀ5 x ꢁ68
30 x ꢀ50
Additional
sliding collar
1
1
1
2
3
4
Document Number: 50019
Revision: 16-Feb-10
For technical questions, contact: sfer@vishay.com
www.vishay.com
119
RA
Adjustable Wirewound Enamelled Resistors
Vishay Sfernice
POWER RATING
ꢁꢀ5
TEMPERATURE RISE
400
8
4
7
ꢀ
0
5
8
6
9
ꢁ
ꢁ
3
ꢁ
ꢀ
ꢁ
ꢁ00
75
x
x
x
x
6
0
x
5
ꢁ
0
5
ꢁ3
x 70
ꢀ
ꢀ
3
A
A
A
A
RA
R
A
R
R
R
R
300
ꢀ00
ꢁ00
0
50
ꢀ5
0
0
50
ꢁ00
ꢁ50
ꢀ00
ꢀ50
300
350
ꢁ0
ꢁ00
RATED POWER IN W
ꢁ000
AMBIENT TEMPERATURE IN °C
MARKING
Vishay Sfernice trademark, model, style, NF style (if applicable) ohmic value (in Ω), tolerance (in %), manufacturing date.
ORDERING INFORMATION
RA
ꢁ3 x 70
AN
470U
ꢁ0 %
ꢁ C. SUP.
BOꢁ0
e
MODEL
STYLE
SPECIAL CONNECTIONS
DESIGN
OHMIC
VALUE
TOLERANCE
ADDITIONAL
SLIDING COLLAR
PACKAGING
LEAD
(Pb)-FREE
In option
Custom items are subject to extra-charge and
min. order. Please see price list.
GLOBAL PART NUMBER INFORMATION
R
A
3
0
ꢀ
5
0
A
6
8
0
R
0
K
B
0
3
GLOBAL
MODEL
PACKAGING
SPECIAL
SIZE
LEADS
OHMIC VALUE
TOLERANCE
RA
ꢁ3 x 70
ꢁ6 x 94
ꢀ0 x ꢁꢁ7
ꢀ5 x ꢁ38
ꢀ5 x ꢁ68
30 x ꢀ50
A = AN
B = B
C = CS
D = CR
The first four digits are
significant figures and the
last digit specifies the
number of zeros to follow.
R designates decimal
point.
K = 10 %
Box:
BO10
BO10NA
BO20
BO30
BO30NA
BO40
As applicable.
Example: BA7
680R0 = 630 Ω
ꢀ030ꢁ = 20.3 kΩ
88R88 = 88.88 Ω
BO40NA
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120
For technical questions, contact: sfer@vishay.com
Document Number: 50019
Revision: 16-Feb-10
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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