Aluminum electrolytic capacitors
Capacitors with screw terminals
Series/Type:
Date:
B43750, B43770
November 2012
© EPCOS AG 2012. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Capacitors with screw terminals
Extremely high ripple current
105
°C
B43750, B43770
Long-life grade capacitors
Applications
Traction
Power electronics
Professional power supplies
Features
Extremely high ripple current capability (up to 110 A)
High reliability
Long useful life
Wide temperature range
All-welded construction ensures reliable electrical contact
No base insulation for max. cooling
(insulated solution "heat sink mounting" upon request)
Version with low-inductance design available for
diameter
≥
76.9 mm
Self-extinguishing electrolyte
RoHS-compatible
Construction
Charge-discharge proof, polar
Aluminum case, partially insulated
Poles with screw terminal connections
Mounting with ring clips, clamps or threaded stud
B43750
B43770
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 16
B43750, B43770
Extremely high ripple current
105
°C
Specifications and characteristics in brief
Rated voltage V
R
Surge voltage V
S
Rated capacitance C
R
Capacitance tolerance
Dissipation factor tan
δ
(20
°C,
120 Hz)
Leakage current I
leak
(20
°C,
5 min)
Self-inductance ESL
d = 64.3 mm: approx. 14 nH
d
≥
76.9 mm: approx. 18 nH
Capacitors with low-inductance design:
d
≥
76.9 mm: approx. 13 nH
350 ... 450 V DC
1.1 V
R
560 ... 5300 µF
±20%
M
≤
0.20
Useful life
1)
105
°C;
V
R
; I
AC,R
85
°C;
V
R
; I
AC,R
40
°C;
V
R
; 3 I
AC,R
Voltage endurance test
105
°C,
V
R
; I
AC,R
Requirements:
> 8000 h
∆C/C
≤ ±15%
of initial value
> 40000 h
tan
δ
≤
1.75 times initial specified limit
> 250000 h
I
leak
≤
initial specified limit
Post test requirements:
2000 h
∆C/C
≤ ±10%
of initial value
tan
δ
≤
1.3 times initial specified limit
I
leak
≤
initial specified limit
Vibration resistance test To IEC 60068-2-6, test Fc:
Frequency range 10 ... 55 Hz, displacement amplitude 0.75 mm,
acceleration max. 10
g,
duration 3
×
2 h.
Capacitor mounted by its body which is rigidly clamped to the work
surface.
Characteristics at low
temperature
Max. impedance ratio
at 100 Hz
IEC climatic category
Sectional specification
Z
-25
°
C
/ Z
20
°
C
Z
-40
°
C
/ Z
20
°
C
4
10
To IEC 60068-1:
40/105/56 ( 40
°C/+105 °C/56
days damp heat test)
IEC 60384-4
1) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 16
B43750, B43770
Extremely high ripple current
105
°C
Dimensional drawings
B43750
Ring clip/clamp mounting
B43770
Threaded stud mounting
Dimensions and weights
Ter-
minal
M6
M6
M6
M6
M6
M6
M6
Dimensions (mm) with insulating sleeve
d
l
±1
l
1
±1
l
2
+0/ 1 d
1
64.3 +0/ 0.8
80.3
64.3 +0/ 0.8 105.3
76.9 +0/ 0.7 105.3
76.9 +0/ 0.7 142.8
91.0 +0/ 2
91.0 +0/ 2
91.0 +0/ 2
67.1
96.6
144.1
86.0
111.0
111.0
148.5
72.4
101.9
149.4
17
17
17
17
17
17
17
M12
M12
M12
M12
M12
M12
M12
Approx.
weight (g)
380
450
630
850
600
1000
1300
d
2
max. a +0.2/ 0.4
17.7
17.7
17.7
17.7
17.7
17.7
17.7
28.5
28.5
31.7
31.7
31.7
31.7
31.7
For low-inductance design the following deviation applies:
d = 91.0 mm: l
1
1.7 mm
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 16
B43750, B43770
Extremely high ripple current
105
°C
Packing
Capacitor diameter
d (mm)
64.3
76.9
91.0
length l
(mm)
all
all
all
Packing units
(pcs.)
25
16
9
For ecological reasons the packing is pure cardboard.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 16
