Datasheet
Document Number: 28714 For technical questions, contact: melf@vishay.com
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Revision: 05-Mar-12 47
MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors
Vishay Beyschlag
This document is subject to change without notice.
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4.39 67 (Cy)
Damp heat,
steady state,
accelerated
(85 ±2) C; (85 ± 5) % RH;
U = 0.3 x
100 V;
1000 h
± (0.15 %
R
+5 m
) ± (0.25 %
R
+5 m
)
4.23
Climatic
sequence:
4.23.2 2 (Bb) 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 (Ab) cold LCT; 2 h
4.23.5 13 (M) low air pressure 8.5 kPa; 2 h; (25 ± 10) C
4.23.6 30 (Db) damp heat, cyclic
55 C; 24 h;90 % RH;
5 cycles
4.23.7 - DC load
U =
U
max.
; 1 min.
LCT = - 10 C;
UCT = 85 C
± (0.05 %
R
+5 m
) ± (0.1 %
R
+5 m
)-
LCT = - 55 C;
UCT = 125 C
- - ± (0.1 %
R
+5 m
)
- 1 (Ab) Cold - 55 C; 2 h
± (0.02 %
R
+5 m
)
4.19 14 (Na)
Rapid change
of temperature
30 min at LCT;
30 min at UCT;
LCT = - 10 C;
UCT = 85 C
5cycles
± (0.01 %
R
+5 m
) ± (0.02 %
R
+5 m
)-
1000 cycles
± (0.1 %
R
+5 m
) ± (0.1 %
R
+5 m
)-
LCT = - 55 C;
UCT = 125 C
5cycles
- - ± (0.025 %
R
+5m
)
1000 cycles
- - ± (0.2 %
R
+5 m
)
4.13 -
Short time
overload;
precision
operation mode
U = 2.5 x
2
x
U
max.
;
5 s
± (0.01 %
R
+5 m
) ± (0.02 %
R
+5 m
) ± (0.03 %
R
+5 m
)
Short time
over load;
standard
operation mode
± (0.05 %
R
+5 m
)
4.27 -
Single pulse high
voltage overload;
standard
operation mode
Severity no. 4:
U = 10 x
2 x U
max.
;
10 pulses 10 µs/700 µs
± (0.25 %
R
+5 m
)
(1)
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2
(4)
TEST
METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE (R)
Stability for product types:
STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
MMU 0102
100
to 100 k
43
to 147 k
22
to 332 k
MMA 0204
100
to 100 k
43
to 221 k
10
to 511 k
MMB 0207
100
to 270 k
43
to 510 k
15
to 1 M
P
70
x R
P
70
x R
P
70
x R
P
70
x R