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參數(shù)資料
| 型號(hào)： | UMA0204 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Ultra Precision MELF Resistor |
| 中文描述： | 超精密晶圓電阻 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 109K |
| 代理商： | UMA0204 |
Ultra Precision MELF Resistor
UMA 0204
Vishay Beyschlag
Document Number: 28715
Revision: 25-Feb-04
for technical questions contact: ff3bresistors@vishay.com
www.vishay.com
1
FEATURES
Most advanced thin film technology
T.C.R. down to ± 5 ppm/K
Ultra precision tolerance down to 0.02 %
Superior overall stability
Green product, supports lead-free soldering
Approved according to EN 140401-803.
APPLICATIONS
Measuring and calibration equipment
Industrial process control systems
Space and aircraft electronics
UMA 0204 ultra precision thin film MINI-MELF resistors
combine the proven reliability of professional MELF products
with a most advanced level of precision and stability first
achieved with axial thin film ultra precision resistors. This
unique combination makes the product perfectly suited for all
applications with outstanding requirements towards reliable
precision and stability.
METRIC SIZE
DIN:
0204
CECC:
RC 3715M
Note
1.
The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the
printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded.
TECHNICAL SPECIFICATIONS
DESCRIPTION
UMA 0204
Metric CECC size
RC 3715M
Resistance range
22
to 332 k
Resistance tolerance
± 0.25 %; ± 0.1 %; ± 0.05 %; ± 0.02 %
Temperature coefficient
± 15 ppm/K; ± 10 ppm/K; ±
05 ppm/K
Operation mode
precision
standard
Climatic category (LCT/UCT/days)
10/85/56
55/125/56
Rated dissipation,
P
70(1)
0.07 W
0.25 W
Operating voltage,
U
max
AC/DC
200 V
Film temperature
85
C
125
C
Max. resistance change at
for resistance range,
R
/
R
max., after:
P
70
22
to 332 k
1000 h
≤
0.02 %
≤
0.05 %
8000 h
≤
0.05 %
≤
0.1 %
225000 h
≤
0.15 %
≤
0.3 %
Specified lifetime
225000 h
Permissible voltage against ambient (insulation):
1 minute;
U
ins
300 V
continuous
75 V
Failure rate
≤
0.7
×
10
-9
/h
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