CMA Vishay, CMA Datasheet - Page 8

• Manufacturer Part Number: CMA
• Description: High Pulse Load Melf Resistor
• Manufacturer: Vishay

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* 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.
Document Number: 28717
Revision: 18-Jul-06
CLAUSE
60115-1
TEST PROCEDURES AND REQUIREMENTS
4.5
4.8.4.2
4.25.1
4.25.1
4.25.3
4.24
4.23
4.23.2
4.23.3
4.23.4
4.23.5
4.23.6
4.23.7
-
EN
IEC 60068-2*
-
-
-
-
-
78 (Cab)
2 (Ba)
30 (Db)
1 (Aa)
13 (M)
30 (Db)
-
1 (Aa)
METHOD
TEST
resistance
temperature coefficient
endurance at 70 °C:
standard operation mode
endurance at 70 °C:
power operation mode
endurance at upper category
temperature
damp heat, steady state
climatic sequence:
dry heat
damp heat, cyclic
cold
low air pressure
damp heat, cyclic
d.c. load
cold
TEST
For technical questions contact: [e-mail]
High Pulse Load MELF Resistor
stability for product types:
-
at 20/- 55/20 °C
and 20/125/20 °C
U =
1.5 h on; 0.5 h off;
70 °C; 1000 h
70 °C; 8000 h
U =
1.5 h on; 0.5 h off;
70 °C; 1000 h
70 °C; 8000 h
125 °C; 1000 h
155 °C; 1000 h
(40 ± 2) °C; 56 days; (93 ± 3) % RH
UCT; 16 h
55 °C; 24 h; ≥ 90 % RH; 1 cycle
LCT; 2 h
8.5 kPa; 2 h; (25 ± 10) °C
55 °C; 24 h; ≥ 90 % RH; 5 cycles
U =
LCT = - 55 °C; UCT = 155 °C
- 55 °C; 2 h
P
P
P
70
70
70
×
×
×
R
R
R
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.
PROCEDURE
≤ U
≤ U
≤ U
max
max
max
;
;
; 1 min.
CMA 0204
see Temperature Coefficient graph
PERMISSIBLE CHANGE (ΔR)
Vishay Beyschlag
± (0.5 % R + 0.1 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 + 0.05 Ω)
± (1 % R + 0.1 Ω)
REQUIREMENTS
± (1 % R + 0.1 Ω)
10 Ω to 100 kΩ
± 2 % R
CMA 0204
www.vishay.com
65