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參數(shù)資料
| 型號： | 1268 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Bulk Metal Foil Technology Precision Trimming Potentiometers 3/8 Inch Square, RJ24 Style - Industrial Trimmer |
| 中文描述： | 散裝金屬箔技術(shù)精密微調(diào)電位3 /，RJ24式8英寸的方形-工業(yè)剪 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 77K |
| 代理商： | 1268 |
www.vishay.com
161
1268
Vishay Foil Resistors
Document Number: 63059
Revision 06-Aug-02
T
VISHAY FOIL FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31
GERMANY +49.9287.710 FAX: +49 9287.70435
ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
ITALY + 39.2.300.11919 FAX: +39.2.300.11999
JAPAN +81.42.729.0661 FAX: +81.42.729.3400
SINGAPORE +65.788.6668 FAX: +65.788.0988
SWEDEN +46.8.594.70590 FAX: +46.8.594.70581
UK +44 191 514 8237 FAX: +44 1953 457 722
USA +1 610 407-4800 FAX: +1 610 640-9081
NOTES:
1. Maximum is 1.0% A.Q.L. standard for all specifications except TCR. (For TCR information see notes 2 and 3). “Typical” is
a designers reference which represents that 85% of the lots supplied, over a long period of time, will be at least the figure
stated or better.
2. Maximum TCR applies to the 3
σ
(sigma) limit or 99.73% of a production lot. (Measured end-to-end with wiper off the element.)
3. Measurements of TCR through the wiper are influenced more by setting stability and the percentage of the total resistance
in use (at the wiper) than by fundamental resistance change due to temperature alone. The parameter shown is a 2
σ
distribution typifying the behavior of the device when used with 40% or more of the total resistance in use.
4. Derated linearly from full power @ + 85
°
C to zero (0) watts @ + 150
°
C. See Figure 2, next page.
5. Independent of resistance value 3 ohms maximum available on special request.
Special Available Options:
Special marking
Burn-in and screening operations
FEATURES
Temperature Coefficient of Resistance (TCR):
±
20ppm/
°
C Max
2
. (– 55
°
C to + 150
°
C Ref. @ 25
°
C);
Through the wiper
3
;
±
50ppm/
°
C
Load Life Stability: 0.1% Typical
R, 1.0% Maximum
R under Full Rated Power @ + 85
°
C for 1000 Hours
Settability: 0.1%
Setting Stability: 0.1% Typical
1
; 0.5% Maximum
1
,
SS
Power Rating
4
: 0.25 watts @ + 85
°
C
Resistance Range: 20
to 5K
Resistance Tolerance:
±
10%
*See Figure 1, next page.
ADDITIONAL SPECIFICATIONS:
Contact Resistance Variation – CRV (noise): 10 ohms Maximum
5
Hop-off: 0.25% Typical; 1.0% Maximum
Operating Temperature Range: – 55
°
C to + 150
°
C
Adjustment Turns: 21
±
2
Mechanical Stops: Wiper Idles – No Discontinuity
MODEL NO.
TERMINATION
STYLE
RESISTANCE
VALUE
TOLERANCE
1268
W
100R
10%
AVERAGE
WEIGHT (g)
STANDARD RESISTANCE VALUES
(in
)
STANDARD
TOLERANCES
POWER RATING @ NO. OF
+ 85
°
C AMBIENT
MODEL
TERMINATION STYLE
TURNS
1268
W-Edge Mount, Top Adjust
20, 50, 100,
200, 500, 1K
2K, 5K
0.4
±
10%
0.25W
21
±
2
X-Edge Mount, Side Adjust
Bulk Metal
Foil Technology
Precision Trimming Potentiometers
3/8 Inch Square, RJ24 Style - Industrial Trimmer
TABLE 1 - MODEL SELECTION *
Please specify Vishay Model 1268 Precision Trimming
Potentiometers as follows:
Example:
TABLE 2 - ORDERING INFORMATION - 1268 SERIES PARTS
See Table 1 for details. See Figure 1, next page for Standard Marking.
Product may not
be to scale
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