DC Line Filters
Normal Mode for Signal Line,
Through-Hole Type, Bead Lead Type Series
Overview
Applications
The KEMET lead type beads intended for normal mode
noise suppression have a wide variety of characteristics.
These through-hole beads are designed with our
proprietary ferrite material and are suitable for noise
countermeasure in DC signal line circuits.
• Audio-visual equipment
• Office automation equipment
• Digital appliances
• Home appliances
• Power supplies
Benefits
• Proprietary Nickel-Zinc (Ni-Zn) ferrite core
• High loss
• High reliability
• Operating temperature range from −20°C to +70°C
• RoHS Compliant
Part Number System
B-
01-
R
T
Series
Impedance (Ω)
Lead Type
Packaging Type
Bead
01 = 2 Ω
02 = 4 Ω
03 = 5 Ω
06 = 40 Ω
A
A1
A2
R
R-25
R-50
RS
Blank = Bulk
T = Tape & Reel
TF = Flat taping
One world. One KEMET
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LF0070_BEAD-L • 2/19/2020
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Dimensions – Millimeters
Part Number
Dimensions - Millimeters
B-01-R
B-01-RS
B-01-A
B-01-A1
B-01-A2
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Dimensions – Millimeters cont.
Part Number
Dimensions - Millimeters
B-02-R
B-03-R
B-06-R-25
B-06-R-50
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Environmental Compliance
All KEMET DC line filters are RoHS Compliant.
Performance Characteristics
Item
Performance Characteristics
Rated Current
Impedance Range
Shape
Lead Type
Operating Temperature
5A
2 – 40 Ω
Single-bead and double-bead
Axial and radial
−20°C to +70°C (not including self-temperature rise)
Table 1 – Ratings & Part Number Reference
1
Part
Number
Rated Current
DC1 (A)
Impedance
(Ω)
Shape
Lead
Type
Weight
(g)
B-01-R
B-01-RT
B-01-RTF
B-01-RS
B-01-RTS
B-01-RTSF
B-01-A
B-01-A1
B-01-A2
B-01-AT
B-01-ATF
B-01-AT1F
B-02-R
B-02-RT
B-02-RTF
B-03-R
B-03-RT
B-06-R-25
B-06-RTF-25
B-06-R-50
B-06-RTF-50
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
2 at 1 MHz
4 at 1 MHz
4 at 1 MHz
4 at 1 MHz
5 at 1 MHz
5 at 1 MHz
40 at 10 MHz
40 at 10 MHz
40 at 10 MHz
40 at 10 MHz
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Single-bead
Double-bead
Double-bead
Double-bead
Double-bead
Double-bead
Double-bead
Double-bead
Double-bead
Double-bead
Radial
Radial
Radial
Radial
Radial
Radial
Axial
Axial
Axial
Axial
Axial
Axial
Radial
Radial
Radial
Radial
Radial
Radial
Radial
Radial
Radial
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.30
0.30
0.40
0.40
0.30
0.60
0.60
0.60
0.30
0.30
0.50
0.50
0.50
0.52
Rated current values are not guaranteed by impedance levels; these values are permissible levels when the lead wire temperature rise is 20°C.
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Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
LF0070_BEAD-L • 2/19/2020
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Frequency Characteristics
Packaging
Part Type
Packaging Type
Pieces per Package
Pieces per Box
B-01-R
B-01-RT
B-01-RTF
B-01-RS
B-01-RTS
B-01-RTSF
B-01-A
B-01-A1
B-01-A2
B-01-AT
B-01-ATF
B-01-AT1F
B-02-R
B-02-RT
B-02-RTF
B-03-R
B-03-RT
B-06-R-25
B-06-RTF-25
B-06-R-50
B-06-RTF-50
Bulk
Tape & Reel
Flat taping
Bulk
Tape & Reel
Flat taping
Bulk
Bulk
Bulk
Tape & Reel
Flat taping
Flat taping
Bulk
Tape & Reel
Flat taping
Bulk
Tape & Reel
Bulk
Flat taping
Bulk
Flat taping
100
2,000
2,000
100
2,000
2,000
100
250
250
5,000
1,500
2,000
100
2,000
1,500
100
2,000
100
1,500
100
1,500
18,000
12,000
20,000
18,000
12,000
20,000
18,000
30,000
30,000
20,000
15,000
32,000
12,000
12,000
15,000
18,000
12,000
12,000
15,000
12,000
15,000
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Taping Specifications
B-01-R**
B-01-RS**
B-01-A**
B-01-A1**
B-02-R** & B-03-R*
B-06-RTF25
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Taping Specifications cont.
B-06-RTF50
Reel Specifications
Reel Dimensions - Millimeters
Part
Number
A
N
W1
+1.0, -0.0
W2
Maximum
B-01-AT
B-01-RT
B-01-RTS
B-02-RT
B-03-RT
360.0
360.0
360.0
360.0
360.0
81.0
140.0
140.0
140.0
140.0
68.0
44.0
44.0
44.0
44.0
73.2
50.2
50.2
50.2
50.2
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
Handling Precautions
Precautions for product storage
DC Line Filters should be stored in normal working environments. While the chokes themselves are quite robust in other
environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres, and
long term storage.
KEMET recommends that maximum storage temperature not exceed 40°C and maximum storage humidity not exceed 70%
relative humidity. Atmospheres should be free of chlorine and sulfur bearing compounds. Temperature fluctuations should
be minimized to avoid condensation on the parts. Do not store near strong magnetic fields, as this might magnetize the
product.
For optimized solderability, DC line filter stock should be used promptly, preferably within six months of receipt.
Product temperature rise values
The values listed for temperature rise are the result of self-heating in wires when the rated current (commercial frequency)
is applied. When using, check and evaluate the value of the core temperature rise under actual operating conditions.
Export Control
For customers in Japan
For products that are controlled items subject to the “Foreign Exchange and Foreign Trade Law” of Japan, the export license
specified by the law is required for export.
For customers outside Japan
DC Line Filters should not be used or sold for use in the development, production, stockpiling or utilization of any
conventional weapons or mass-destructive weapons (nuclear weapons, chemical or biological weapons, or missiles) or any
other weapons.
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LF0070_BEAD-L • 2/19/2020
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DC Line Filters – Normal Mode for Signal Line, Through-Hole Type, Bead Lead Type Series
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no
obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or
property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other
measures may not be required.
When providing KEMET products and technologies contained herein to other countries, the customer must abide by the procedures and provisions stipulated in all
applicable export laws and regulations, including without limitation the International Traffi c in Arms Regulations (ITAR), the US Export Administration Regulations
(EAR) and the Japan Foreign Exchange and Foreign Trade Act.
KEMET is a registered trademark of KEMET Electronics Corporation.
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