ALUMINUM ELECTROLYTIC CAPACITORS
Screw Terminal Type, 105°C
High Voltage, Smaller Sized.
NU series
Load life of 5000 hours application of ripple current at 105°C.
High voltage / Smaller sized than NT series.
Coped with loading of high speed charge-discharge.
Suited for high frequency regenerative voltage for AC servomotor,
general inverter.
Suited for use in industrial power supplies for inverter circuitry, etc.
Rated voltage range up to DC525V.
N U
High
Voltage
Smaller
NT
Compliant to the RoHS directive (2011/65/EU).
Specifications
Item
Performance Characteristics
Category Temperature Range
Rated Voltage Range
Rated Capacitance Range
Capacitance Tolerance
–
40 to +105°C
400 to 525V
680 to 18000
µ
F
(
)
± 20% 120Hz, 20°C
After 5 minutes' application of rated voltage, leakage current is not more than
(µA) or 5 mA, whichever is smaller. (at 20°C
)
3
CV
Leakage Current
[C :Rated Capacitance(µF), V : Voltage
]
( V )
(
)
Tangent of loss angle (tan δ)
0.2MAX. 120Hz at 20°C
Measurement frequeny : 120Hz
Rated voltage(V)
400 to 525
–
Stability at Low Temperature
Z
40°C / Z+20°C
Impedance ratio ZT/Z20(MAX.)
8
Insulation Resistance
Voltage proof
The insulation resistance shall be more than 100MΩ at DC 500V application between terminal and bracket.
There is no abnormality during AC 2500V 1 minute's application between terminal and bracket.
The specifications listed at right shall be met when the capacitors are
Capacitance change Within ±20% of the initial capacitance value
restored to 20°C after D.C. bias plus rated ripple current is applied for
5000 hours at 105°C, the peak voltage shall not exceed the rated
voltage.
Endurance
Shelf Life
tan δ
200% or less than the initial specified value
Less than or equal to the initial specified value
Leakage current
Capacitance change Within ±20% of the initial capacitance value
After storing the capacitors under no load at 105°C for 1000 hours
and then performing voltage treatment based on JIS C 5101-4
clause 4.1 at 20°C, they shall meet the reguirements listed at right.
tan δ
200% or less than the initial specified value
Less than or equal to the initial specified value
Leakage current
Capacitance change Within ±20% of the initial capacitance value
After an application of charge-discharge voltage for 50million times
Endurance of charge -
discharge behavior
(charge-discharge voltage difference(∆V) = rated voltage 0.3, cycle 3Hz)
×
tan δ
200% or less than the initial specified value
Less than or equal to the initial specified value
capacitors shall meet the characteristics requirement listed at right.
Leakage current
Marking
Printed with white color letter on black sleeve
Drawing
Type numbering system (Example : 500V 4700 F)
µ
Hexagenal headed bolt
Bottom plate
Sleeve
1
2
3
4
5
6
7
8
9
10 11 12 13 14
Pressure relief vent
L N U 2 H 4 7 2 M S E H
Mounting bracket
(
)
φ 51 to φ 90
3-leg brackets
2-leg brackets
No brackets
Code less
BB
BN
Case dia. code
φD Code
51
F
G
H
J
Configuration
63.5
76.2
90
(
)
)
Capacitance tolerance ±20%
P±
A±
2
h
(
Rated Capacitance 4700µF
B
2
H±
1
(
)
Rated voltage 500V
MAX.
L+
±
1
Series name
Type
U
S
B
Configuration
standerd
specifications
3-leg brackets for φ90 capacitors have different
hole shapes from the ordinary ones illustrated
below.
stud mount type
TE
SE
Please refer to page 330 for schematic of dimensions.
Please contact to us if PVC less products are required.
P
Pressure relief vent
7
Dimensions of mounting bracket
Leg shape
(mm)
Note) The brackets will be supplied in the separate box.
3--Leg
63.5
2--Leg
Dimension of terminal pitch (W) and length (
R)
and Nominal dia.of bolt
φD
(mm)
Symbol
51
32.5
38.5
7.5
5.0
12
76.2
44.5
49.2
7.0
5.0
14
90
50.8
58.5
8.0
5.0
18
60
35
25
51
33.2
40
6.0
4.5
14
30
25
15
63.5
40.5
46.5
7.0
4.5
14
76.2
46.5
53
6.0
4.5
14
90
53
59
6.0
4.5
14
30
35
20
φD
51
63.5
76.2
90
W
α
P
A
T
S
U
38.1
43
8.0
5.0
14
Nominal dia. of bol
t
R
6
6
6
6
22.0
28.6
31.8
31.8
3
3
3
3
M 5
M 5
M 5
M 5
60
60
60
30
30
°
H
h
20
15
25
20
30
24
35
35
About product of stud bolt
Nylon nut and nylon washer attachment become the standard
specifications. (cf. P.330)
20
20
It is not attached to the bracket.
Field 13 and 14 become blank in Type number system.
Dimension table in next page.
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