Aluminum electrolytic capacitors
Capacitors with screw terminals
Series/Type:
Date:
B43701, B43721
December 2016
© EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Capacitors with screw terminals
Standard
85
°C
B43701, B43721
Long-life grade capacitors
Applications
Uninterruptible power supplies
Frequency converters
Features
All-welded construction ensures reliable electrical contact
RoHS-compatible
B43701
Construction
Charge-discharge proof, polar
Aluminum case, insulated with PVC sleeve
Version with PET insulation available upon request
Poles with screw terminal connections
Mounting with ring clips, clamps or threaded stud
Types with threaded stud are available with or without insulated
base
B43721
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 17
B43701, B43721
Standard
85
°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
Useful life
1)
85
°C;
V
R
; I
AC,R
d = 51.6 mm: approx. 15 nH
d
≥
64.3 mm: approx. 20 nH
350 ... 450 V DC
1.10 V
R
1200 ... 12000 μF
±20%
M
≤
0.20
Requirements:
> 5000 h
ΔC/C
≤
15% of initial value
tan
δ
≤
1.75 times initial specified limit
I
leak
≤
initial specified limit
Voltage endurance test
Post test requirements:
85
°C;
V
R
2000 h
ΔC/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.
Max. impedance
Characteristics at low
Z
-25
°
C
/ Z
20
°
C
4
ratio at 100 Hz
temperature
Z
-40
°
C
/ Z
20
°
C
17
IEC climatic category
To IEC 60068-1:
25/085/56 ( 25
°C/+85 °C/56
days damp heat test)
The capacitors can be operated in the temperature range of
40
°C
to +85
°C
but the impedance at 40
°C
must be taken into
consideration.
Similar to CECC 30301-810
IEC 60384-4
Detail specification
Sectional specification
Ripple current capability
Due to the ripple current capability of the contact elements, the following current upper limits must
not be exceeded:
Capacitor diameter
I
AC,max
51.6 mm
34 A
64.3 mm
47 A
76.9 mm
57 A
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 17
B43701, B43721
Standard
85
°C
Dimensional drawings
B43701
Ring clip/clamp mounting
B43721
Threaded stud mounting
For standard types with threaded stud the base is not insulated. Also refer to the mounting
instructions in chapter "Capacitors with screw terminals Accessories".
Screw terminals with UNF threads are available upon request.
Dimensions and weights
(Standard capacitors, without heat sink)
Ter-
minal
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
M5
Dimensions (mm) with insulating sleeve
d
l
±1
l
1
±1
l
2
+0/ 1 d
1
51.6 +0.5/
51.6 +0.5/
51.6 +0.5/
51.6 +0.5/
51.6 +0.5/
64.3 +0.5/
64.3 +0.5/
64.3 +0.5/
64.3 +0.5/
64.3 +0.5/
64.3 +0.5/
76.9 +0.5/
76.9 +0.5/
76.9 +0.5/
76.9 +0.5/
76.9 +0.5/
76.9 +0.5/
1 80.7
1 96.7
1 105.7
1 118.2
1 130.7
1
1
1
1
1
1
1
1
1
1
1
1
80.7
96.7
105.7
118.2
130.7
143.2
96.7
105.7
130.7
156.2
168.7
190.7
87.2
103.2
112.2
124.7
137.2
87.2
103.2
112.2
124.7
137.2
149.7
103.2
112.2
137.2
162.7
175.2
197.2
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
M12
Approx.
weight (g)
220
250
280
320
350
370
400
440
510
600
630
570
620
800
920
1000
1150
d
2
max. a +0.2/ 0.4
10.2
10.2
10.2
10.2
10.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
13.2
22.2
22.2
22.2
22.2
22.2
28.5
28.5
28.5
28.5
28.5
28.5
31.7
31.7
31.7
31.7
31.7
31.7
Tolerances of terminal thread respectively stud thread:
Terminal thread M5: 6H
Thread of stud M12: 6g
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 17
B43701, B43721
Standard
85
°C
Packing
Capacitor diameter d
(mm)
51.6
64.3
76.9
Length l
(mm)
all
all
≤168.7
>168.7
Packing units
(pcs.)
36
25
16
12
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 17
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