Snap-in capacitors
Standard series – 105 °C
Snap-in capacitors
B43254
B43254
Standard series – 105 °C
Long life grade capacitors
Applications
■ Switch-mode power supplies in industrial and entertainment electronics
Features
■ High ripple current capability
■ RoHS-compatible
■ Long load life of 3000 h at 105 °C
Construction
■ Aluminum case, fully insulated
■ Snap-in solder pins to hold component in place on PC-board
■ Minus pole marking on the insulating sleeve
■ Case with safety vent
Specifications and characteristics in brief
Rated voltage VR
160 … 450 V DC
Operating temperature
range
V
V
R ≤ 250 V DC: –40 °C … +105 °C
R ≥ 350 V DC: –25 °C … +105 °C
Rated capacitance CR
47 … 2700 µF
(20 °C, 120 Hz)
Capacitance tolerance
±20%
M
Load life
3000 h
Requirements:
(105 °C, VR, IAC,R
)
∆C/C ≤ ±20% of initial value
tan δ ≤ 2 times initial specified limit
Ileak ≤ initial specified limit
Leakage current Ileak
(20 °C, after 5 minutes)
CR VR
------- ------
I
leak ≤ 3 µA
µF
V
Dissipation factor (max.)
(20 °C, 120 Hz)
V
R (V DC)
160 ... 400
0.15
450
0.20
450
8
tan δ
R (V DC)
Z(–25 °C)
Low temperature stability
(impedance ratio)
(120 Hz)
V
160 ... 400
4
--------------------------
Z(+20 °C)
Shelf life
After storage for 1000 h at 105 °C, the capacitors shall meet the re-
quirement of load life test after reforming process. After test: VR to be
applied for 30 minutes, 24 to 48 hours before measurement.
50 Hz
0.90
120 Hz
1.00
1 kHz
1.20
10 kHz
1.50
20 kHz
1.55
Frequency multiplier
for rated ripple current
+40 °C
2.7
+55 °C
2.5
+70 °C
2.1
+85 °C
1.7
+105 °C
1.0
Temperature multiplier
for rated ripple current
Please read Cautions and warnings and
Important notes at the end of this document.
2
04/08
EPCOS [ EPCOS ]
