CMA0204_10 Datasheet, PDF (8/10 Pages) Vishay Siliconix – High Pulse Load MELF Resistors

High Pulse Load MELF Resistors
CMA 0204
Vishay Beyschlag
TESTS AND REQUIREMENTS
Essentially 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 Test Procedures and Requirements table contains the
applicable tests selected from the documents listed above.
The tests are carried out in accordance with IEC 60068 ⁽¹⁾
and under standard atmospheric conditions in accordance
with IEC 60068-1, 5.3 ⁽¹⁾. 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 to 1060 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 in the Test Procedures and
Requirements table are based on the required tests and
permitted limits of EN 140401-803.
TEST PROCEDURES AND REQUIREMENTS
EN
60 115-1
CLAUSE
IEC
60068-2 ⁽¹⁾
TEST
METHOD
TEST
PROCEDURE
Stability for product types:
CMA 0204
4.5
-
Resistance
-
4.8.4.2
-
4.25.1
-
Temperature coefficient
Endurance at 70 °C:
standard operation mode
At (20/- 55/20) °C
and (20/125/20) °C
U = P₇₀ x R ≤ U_max.;
1.5 h on; 0.5 h off;
70 °C; 1000 h
4.25.1
-
Endurance at 70 °C:
power operation mode
70 °C; 8000 h
U = P₇₀ x R ≤ U_max.;
1.5 h on; 0.5 h off;
70 °C; 1000 h
70 °C; 8000 h
4.25.3
-
Endurance at upper category
temperature
125 °C; 1000 h
155 °C; 1000 h
4.24
78 (Cab)
Damp heat, steady state
(40 ± 2) °C; 56 days; (93 ± 3) % RH
4.23
Climatic sequence:
4.23.2
2 (Ba)
dry heat
UCT; 16 h
4.23.3
30 (Db)
damp heat, cyclic
55 °C; 24 h; ≥ 90 % RH; 1 cycle
4.23.4
1 (Aa)
cold
LCT; 2 h
4.23.5
13 (M)
low air pressure
8.5 kPa; 2 h; (25 ± 10) °C
4.23.6
4.23.7
30 (Db)
-
damp heat, cyclic
DC load
55 °C; 24 h; ≥ 90 % RH; 5 cycles
U = P₇₀ x R ≤ U_max.; 1 min
LCT = - 55 °C; UCT = 155 °C
-
1 (Aa)
Cold
- 55 °C; 2 h
4.19
14 (Na)
Rapid change of temperature
30 min at - 55 °C;
30 min at + 125 °C; 5 cycles
Short time overload;
standard operation mode
U = 2.5 x P₇₀ x R ≤ 2 x U_max.; 5 s
4.13
-
Short time overload;
power operation mode
U = 2.5 x P₇₀ x R ≤ 2 x U_max.; 5 s
4.40
-
Electrostatic discharge
(human body model)
IEC 61340-3-1 ⁽¹⁾;
3 pos. + 3 neg. discharges
CMA 0204: 6 kV
REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
10 Ω to 100 kΩ
±2%R
See Temperature Coefficient graph
± (1 % R + 0.05 Ω)
± (2 % R + 0.05 Ω)
± (2 % R + 0.05 Ω)
± (4 % R + 0.05 Ω)
± (2 % R + 0.05 Ω)
± (4 % R + 0.05 Ω)
± (1 % R + 0.1 Ω)
± (1 % R + 0.1 Ω)
± (0.5 % R + 0.1 Ω)
± (0.5 % R + 0.1 Ω)
± (0.25 % R + 0.1 Ω)
± (0.25 % R + 0.1 Ω)
± (0.5 % R + 50 mΩ)
Document Number: 28717
Revision: 01-Mar-10
For technical questions, contact: [e-mail]
www.vishay.com
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