ALUMINUM ELECTROLYTIC CAPACITORS
WD
Chip Type, Low Impedance
High Temperature (260°C) Reflow
series
Corresponding with 260°C peak reflow soldering
Recomended reflow condition : 260°C peak 5 sec. 230°C over 60 sec.
2 times (φ10 × 10, : 1 time)
Chip type, low impedance temperature range up to +105°C.
WD
Designed for surface mounting on high density PC board.
Applicable to automatic mounting machine fed with carrier tape.
Compliant to the RoHS directive (2002/95/EC).
High
Temperature
Reflow
UD
Specifications
Item
Performance Characteristics
Category Temperature Range
– 55 to +105°C
Rated Voltage Range
6.3 to 50V
Rated Capacitance Range
1 to 1500µF
Capacitance Tolerance
± 20% at 120Hz, 20°C
Leakage Current
After 2 minutes' application of rated voltage, leakage current is not more than 0.01 CV or 3 (µA), whichever is greater.
Measurement frequency : 120Hz at 20°C
Rated voltage (V)
6.3
10
16
25
35
50
tan δ (MAX.)
0.26 (0.28) 0.20 (0.24) 0.16 (0.20) 0.14 (0.16) 0.12 (0.14) 0.12 (0.14)
Tangent of loss angle (tan δ)
(
) is φ8 over
Measurement frequency : 120Hz
Stability at Low Temperature
6.3
3
5
Rated voltage (V)
Z– 25°C / Z+20°C
Z– 55°C / Z+20°C
Impedance ratio
ZT / Z20 (MAX.)
10
2
4
The specifications listed at right shall be met
when the capacitors are restored to 20°C after the
rated voltage is applied for 5000 hours (2000
hours for φD = 4, 5 and 6.3) at 105°C.
Endurance
16
2
4
25
2
3
35
2
3
Capacitance change
tan δ
Leakage current
50
2
3
Within ±30% of the initial capacitance value
200% or less than the initial specified value
Less than or equal to the initial specified 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 specified values for the endurance characteristics listed above.
The capacitors are kept on a hot plate for 30 seconds, which is
Capacitance change Within ±10% of the initial capacitance value
maintained at 250°C. The capacitors shall meet the characteristic
tan δ
Less than or equal to the initial specified value
requirements listed at right when they are removed from the plate
Leakage current
Less than or equal to the initial specified value
and restored to 20°C.
Shelf Life
Resistance to soldering
heat
Black print on the case top.
Marking
Type numbering system (Example : 16V 22µF)
Chip Type
(φ4 to φ6.3)
1
2
3
4
5
6
7
8
9
10 11 12 13 14
A±0.2
UWD 1 C 2 2 0 M C L 1 G S
Package code
Configuration
A±0.2
E
L±0.3
Capacitance
Lot No.
C±0.2
B±0.2
A2
33C
WD
φD±0.5
Series
Voltage (C:16V)
0.5 MAX.
Positive
Plastic platform
0.3 MAX.
H
Capacitance tolerance (±20%)
Rated capacitance (22 µF)
Negative
Rated voltage (16V)
Series name
Type
(φ8 to φ10)
Lot No.
E
L±0.5
Capacitance
φD×L
A±0.2 A±0.2
C±0.2
B±0.2
A2
100V
WD
Trade mark
Plastic platform
0.3 MAX.
Series
φD±0.5
Voltage (V:35V)
0.5 MAX.
Positive
Negative
A
B
C
E
L
H
(mm)
4 × 5.8
5 × 5.8
6.3 × 5.8
6.3 × 7.7
8 × 10
10 × 10
1.8
4.3
4.3
1.0
5.8
0.5 to 0.8
2.1
5.3
5.3
1.3
5.8
0.5 to 0.8
2.4
6.6
6.6
2.2
5.8
0.5 to 0.8
2.4
6.6
6.6
2.2
7.7
0.5 to 0.8
2.9
8.3
8.3
3.1
10
0.8 to 1.1
3.2
10.3
10.3
4.5
10
0.8 to 1.1
H
Voltage
V
6.3
Code
j
10
A
16
C
25
E
35
V
50
H
Dimension table in next page.
CAT.8100B
