參數(shù)資料
型號： UMA0204
廠商： Vishay Intertechnology,Inc.
英文描述： Ultra Precision MELF Resistor
中文描述： 超精密晶圓電阻
文件頁數(shù)： 6/8頁
文件大?。?/td> 109K
代理商： UMA0204
UMA 0204
Vishay Beyschlag
Ultra Precision MELF Resistor
www.vishay.com
6
For technical questions contact: ff3bresistors@vishay.com
Document Number: 28715
Revision: 25-Feb-04
TEST PROCEDURES AND REQUIREMENTS
- continued
EN
60115-1
CLAUSE
IEC
60068-2
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE (
R
/
R
)
STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
stability for product types:
UMA 0204
100
to 100 k
43
to 221 k
22
to 332 k
4.39
67 (Cy)
damp heat, steady
state, accelerated
(85 ±
2)
°
C;
(85 ± 5) % RH;
U
= 0.1
×
1000 h
≤
100 V;
± (0.1 %
R
+ 1 m
)
± (0.25 %
R
+ 1 m
)
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
°
C; 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
LCT =
10
°
C; UCT = 85
°
C
±
(0.03 %
R
+ 1 m
) ± (0.05 %
R
+ 1 m
)
-
LCT =
55
°
C; UCT = 125
°
C
-
-
± (0.1 %
R
+ 1 m
)
1 (Aa)
cold
55
°
C; 2 h
± (0.02 %
R
+ 1 m
)
4.19
14 (Na)
rapid change of
temperature
30 minutes at LCT;
30 minutes at UCT;
LCT =
10
°
C;
UCT = 85
°
C
5 cycles
± (0.01 %
R
+ 1 m
) ± (0.02 %
R
+ 1 m
)
-
1000 cycles
± (0.05 %
R
+ 1 m
) ± (0.05 %
R
+ 1 m
)
-
LCT =
55
°
C; UCT = 125
°
C
5 cycles
-
-
± (0.025 %
R
+ 1 m
)
1000 cycles
-
-
± (0.1 %
R
+ 1 m
)
4.13
short time overload;
precision operation
mode
U
= 2.5
×
≤
2
×
U
max
;
5 s
± (0.005 %
R
+ 1 m
)
± (0.01 %
R
+ 1 m
)
short time overload;
standard operation
mode
U
= 2,5
×
≤
2
×
U
max
;
5 s
± (0.01 %
R
+ 1 m
)
4.27
single pulse high
voltage overload;
standard mode
severity no. 4:
U
= 10
×
≤
2
×
U
max
;
10 pulses 10
μ
s/700
μ
s
± (0.25 %
R
+ 5 m
)
(1)
4.37
periodic electric
overload;
standard mode
U
=
≤
2
×
U
max
;
0.1 s on; 2.5 s off; 1000 cycles
± (0.5 %
R
+ 5 m
)
(1)
P
70
R
×
P
70
R
×
P
70
R
×
P
70
R
×
15
P
70
×
R
×
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