Aluminum electrolytic capacitors
Single-ended
capacitors
Series/Type:
B41851, B43851
The following products presented in this data sheet are being withdrawn.
Ordering Code
see following page
Substitute Product
Date of Withdrawal
2013-10-18
Deadline Last
Orders
2014-01-18
Last Shipments
2014-04-18
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a
suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
Affected products (Ordering code)
B41851A2227*
B41851A2337*
B41851A3107*
B41851A3227*
B41851A4107*
B41851A4686*
B41851A5107*
B41851A5476*
B41851A6105*
B41851A6106*
B41851A6225*
B41851A6226*
B41851A6335*
B41851A6336*
B41851A6475*
B41851A6476*
B41851A6685*
---
B41851A7336*
B41851A7476*
B41851A7686*
B41851A8106*
B41851A8226*
B41851A8336*
B41851A9104*
B41851A9105*
B41851A9106*
B41851A9224*
B41851A9225*
B41851A9334*
B41851A9335*
B41851A9474*
B41851A9475*
B41851A9684*
B41851B6106*
B41851F4227*
B41851F5686*
B41851F6686*
B41851F7107*
B41851F8226*
B41851F8476*
B41851S3227*
B41851S5157*
B41851S6476*
B41851S7107*
B41851S7476*
B43851A1105*
B43851A1225*
B43851A1335*
B43851A1474*
B43851A2105*
B43851A2225*
B43851A2335*
B43851A2474*
B43851A4105*
B43851A4474*
B43851A4684*
B43851F1475*
B43851F2105*
B43851F2225*
B43851F2474*
B43851F2684*
B43851F4225*
B43851G2475*
B43851K2335*
1/1
Single-ended capacitors
Standard series
105
°C
B41851, B43851
General-purpose grade capacitors
Applications
General-purpose applications in the entertainment industry
Semi-professional to professional application range
For filtering, coupling and pulse circuits
Switch-mode power supplies
Features
Compact dimensions
High CV product, i.e. very compact
RoHS-compatible
Construction
Radial leads
Charge-discharge proof, polar
Aluminum case with insulating sleeve
Minus pole marking on the insulating sleeve
Case with safety vent from diameter 6.3 mm
Delivery mode
Terminal configurations and packing:
Bulk
Taped, Ammo pack
Cut
Kinked
PAPR (protection against polarity reversal):
crimped leads, J leads, bent leads
Refer to chapter "Single-ended capacitors
and lead configurations" for further details.
Taping, packing
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 36
B41851, B43851
Standard series
105
°C
Specifications and characteristics in brief
Series
Rated voltage V
R
Surge voltage V
S
Rated capacitance C
R
Capacitance tolerance
Dissipation factor tan
δ
(20
°C,
120 Hz)
B41851
6.3 ... 100 V DC
1.15 V
R
0.1 ... 10000 µF
±20%
M
B43851
160 ... 450 V DC
1.1 V
R
0.47 ... 680 µF
±20%
M
For capacitance higher than 1000 µF add 0.02 for every increase of
1000 µF.
V
R
(V DC)
tan
δ
(max.)
6.3
10
16
25
35
50
63
100 160 ...
450
0.28 0.24 0.20 0.16 0.14 0.12 0.12 0.10 0.20
Leakage current I
leak
(20
°C,
5 min)
Self-inductance ESL
or 3 µA, whichever is greater
Diameter (mm)
≤
6.3
8 ... 12.5
ESL (nH)
Useful life
105
°C;
V
R
; I
AC,R
40
°C;
V
R
; 1.8 I
AC,R
40
°C;
V
R
; 2.1 I
AC,R
Requirements
> 2000 h
> 250000 h
∆C/C
tan
δ
I
leak
1000 h
∆C/C
tan
δ
I
leak
15
20
16
26
> 3000 h
> 250000 h
≤ ±45%
of initial value
≤
3 times initial specified limit
≤
initial specified limit
1000 h
≤ ±30%
of initial value
≤
2 times initial specified limit
≤
initial specified limit
18
34
20 ...
25
40
Voltage endurance test
105
°C;
V
R
Post test requirements
Vibration resistance test To IEC 60068-2-6, test Fc:
Frequency range 10 Hz ... 2 kHz, displacement amplitude 1.5 mm,
acceleration max. 20
g,
duration 3
×
2 h.
Capacitor rigidly clamped by the aluminum case.
IEC climatic category
To IEC 60068-1:
V
R
≤
250 V: 40/105/56 ( 40
°C/+105 °C/56
days damp heat test)
V
R
≥
350 V: 25/105/56 ( 25
°C/+105 °C/56
days damp heat test)
IEC 60384-4
Sectional specification
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 36
B41851, B43851
Standard series
105
°C
Dimensional drawings
With stand-off rubber seal
Diameters (mm):
6.3, 10, 12.5, 16, 18, 22, 25
With flat rubber seal
Diameters (mm):
5, 8, 20
Safety vent for diameter
≥6.3
mm.
Dimensions and weights
Dimensions (mm)
d +0.5
5
6.3
8
10
10
10
12.5
12.5
16
16
16
18
18
18
20
20
22
25
Approx. weight
g
0.5
0.7
1.0
1.6
1.9
2.6
3.6
4.5
5.5
7.5
7.8
11.0
13.0
16.0
18.0
20.0
23.0
25.0
l
11 +1.0
11 +1.0
11.5 +1.5
12.5 +1.0
16 +1.0
20 +2.0
20 +2.0
25 +2.0
20 +2.0
25 +2.0
31.5 +2.0
31.5 +2.0
35 +2.0
40 +2.0
35 +2.0
40 +2.0
40 +2.0
40 +2.0
a
±0.5
2.0
2.5
3.5
5.0
5.0
5.0
5.0
5.0
7.5
7.5
7.5
7.5
7.5
7.5
10.0
10.0
10.0
12.5
b
0.50
±0.05
0.50
±0.05
0.60
±0.05
0.60
±0.05
0.60
±0.05
0.60
±0.05
0.60
±0.05
0.60
±0.05
0.80
±0.05
0.80
±0.05
0.80
±0.05
0.80
±0.1
0.80
±0.1
0.80
±0.1
1.0
±0.1
1.0
±0.1
1.0
±0.1
1.0
±0.1
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 36
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