AC-AT Datasheet, PDF (9/12 Pages) Vishay Siliconix – Cemented Leaded Wirewound Resistors

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TESTS PROCEDURES AND REQUIREMENTS
All tests are carried out in accordance with the following
specifications:
• IEC 60115-1, generic specification (includes tests)
The test and requirements table contains only the most
important tests. For the full test schedule refer to the
documents above.
The tests are carried out in accordance with IEC 60068-2-xx
test method and under standard atmospheric conditions in
accordance with IEC 60068-1, 5.3.
Climatic category -40 / 200 / 56 (rated temperature range:
lower category temperature, upper category temperature;
damp heat, steady state, test duration: 56 days) is valid.
AC, AC-AT
Vishay Draloric
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 to 1060 mbar)
For performing some of the tests, the components are
mounted on a test board in accordance with IEC 60115-1,
4.31.
In test procedures and requirements table, only the tests
and requirements are listed with reference to the relevant
clauses of IEC 60115-1 and IEC 60068-2-xx test methods.
A short description of the test procedure is also given.
TEST PROCEDURES AND REQUIREMENTS
IEC 60115-1
CLAUSE
IEC 60068-2
TEST
METHOD
TEST
PROCEDURE
4.13
Room temperature;
-
Short time overload
10x rated power P₄₀;
5s
4.16
21 (Ua₁)
21 (Ub)
21 (Uc)
Robustness of
terminations
Tensile, bending and torsion
4.18
20 (Tb)
Resistance to
soldering heat
Unmounted components
(260 ± 5) °C; (10 ± 1) s
4.19
-
Rapid change
of temperature
30 min at -55 °C and
30 min at +200 °C;
5 cycles
4.23
Climatic sequence:
4.23.2
2 (Ba)
Dry heat
16 h; 200 °C
4.23.3
30 (Db)
Damp heat
(accelerated)
1st cycle
24 h; 55 °C;
90 % to 100 % RH
4.23.4
1 (Aa)
Cold
2 h; -55 °C
4.23.5
13 (M)
Low air pressure
2 h; 8.5 kPa;
15 °C to 35 °C
4.23.6
30 (Db)
Damp heat
remaining cyclic
5 days; 55 °C;
95 % to 100 % RH; 5 cycles
4.24
78 (Cab)
Damp heat,
(steady state)
56 days; (40 ± 2) °C;
(93 ± 5) % RH
4.25.2
4.25.3
4.35
4.37
4.38
-
-
-
67 C(y)
-
Endurance
(at room temperature)
Endurance at
upper category
temperature
Flammability
Damp heat, steady state,
accelerated
Electrostatic discharge test
1000 h;
loaded with 116 % of P₇₀
125 °C; without load; 1000 h
200 °C; 30 % of P₇₀; 1000 h
IEC 60695-11-5
needle flame test; 10 s
(85 ± 2) °C; RH (85 ± 3) %;
1000 h;
10 % of operation power (P₇₀)
U  0.3 x U_max.
2 discharges, 8 kV
(1 positive, 1 negative)
REQUIREMENTS
PERMISSIBLE CHANGE (R_MAX.)
± (2 % R + 0.1 )
No damage
± (0.5 % R + 0.05)
± (0.5 % R + 0.05)
± (1.5 % R + 0.05 )
± (1 % R + 0.05 )
± (5 % R + 0.1 )
± (5 % R + 0.1 )
± (5 % R + 0.1 )
± (5 % R + 0.1 )
No burning after 30 s
± (5 % R + 0.1 )
± (5 % R + 0.1 )
Revision: 14-Mar-17
9
Document Number: 28730
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