UMA0204 Datasheet, PDF (5/8 Pages) Vishay Siliconix – Ultra Precision MELF Resistor

Ultra Precision MELF Resistor
UMA 0204
Vishay Beyschlag
TESTS AND REQUIREMENTS
All tests are carried out in accordance with the following
specifications:
EN 60115-1, generic specification
EN 140400, sectional specification
EN 140401-803, detail specification
The components are approved in accordance with the
IECQ-CECC-system, where applicable. For the full test
schedule refer to the documents listed above. The testing
also covers most of the requirements specified by
EIA/IS-703 and JIS-C-5202.
The tests are carried out in accordance with IEC 60068 and
under standard atmospheric conditions in accordance with
IEC 60068-1, 5.3. Climatic category LCT/UCT/56 (rated
temperature range: Lower Category Temperature, Upper
Category Temperature; damp heat, long term, 56 days) is
valid.
Unless otherwise specified the following values apply:
Temperature: 15 ˚C to 35 ˚C
Relative humidity: 45 % to 75 %
Air pressure: 86 kPa to 106 kPa (860 mbar to1 060 mbar).
The components are mounted for testing on printed-circuit
boards in accordance with EN 140400, 2.3.3, unless
otherwise specified.
The requirements stated below are based on the required
tests and permitted limits of EN 140401-803. However,
some additional tests and a number of improvements
against those minimum requirements have been included.
The stated requirements for long-term tests are typically
fulfilled with a statistical safety of at least x +5 s.
TEST PROCEDURES AND REQUIREMENTS
EN
60 115-1
CLAUSE
IEC
60 068-2
TEST
METHOD
TEST
PROCEDURE
stability for product types:
REQUIREMENTS
PERMISSIBLE CHANGE (∆R/R)
STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
4.5
−
4.8.4.2 −
4.25.1 −
4.25.3 −
resistance
temperature
coefficient
endurance at
70 °C:
precision operation
endurance at
70 °C:
standard operating
mode
endurance at
upper category
temperature
UMA 0204 100 Ω to 100 kΩ 43 Ω to 221 kΩ 22 Ω to 332 kΩ
−
at 20 / −10 / 20 °C
± 0.25 %; ± 0.1 %; ± 0.05 %; ± 0.02 %;
± 10 ppm/K; ± 05 ppm/K
and 20 / 85 / 20 °C
at 20 / −55 / 20 °C
±15 ppm/K
and 20 / 125 / 20 °C
U = P ₇₀ × R ≤ U_max;
1.5 h on; 0.5 h off;
70 °C; 1000 h
70 °C; 8000 h
± (0.02 %R + 1 mΩ)
± (0.05 %R + 1 mΩ)
U = P ₇₀ × R ≤ U_max;
1.5 h on; 0.5 h off;
70 °C; 1000 h
70 °C; 8000 h
± (0.05 %R + 1 mΩ)
± (0.1 %R + 1 mΩ)
85 °C; 1000 h
± (0.01 %R + 1 mΩ) ± (0.05 %R + 1 mΩ) ± (0.1 %R + 1 mΩ)
125 °C; 1000 h
± (0.05 %R + 1 mΩ) ± (0.1 %R + 1 mΩ) ± (0.15 %R + 1 mΩ)
4.24
78 (Cab) damp heat, steady (40 ± 2) °C; 56 days;
state
(93 ± 3) % RH
± (0.03 %R + 1 mΩ) ± (0.05 %R + 1 mΩ) ± (0.1 %R + 1 mΩ)
Document Number: 28715
Revision: 25-Feb-04
For technical questions contact: [e-mail]
www.vishay.com
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