Power line chokes
Current-compensated U core double chokes
300 V AC, 0.4 … 2.6 A, 0.33 … 15 mH, +40° C
Series/Type:
B82730U/G
Date:
July 2012
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© EPCOS AG 2015. 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.
Power line chokes
B82730U/G
Current-compensated U core double chokes
Rated voltage 300 V AC
Rated current 0.4 ... 2.6 A
Rated inductance 0.33 ... 15 mH
Construction
■
■
■
■
■
Current-compensated U-core double choke
Ferrite core
Closed PET coil former (UL 94 V-0)
Without encapsulation
Creepage distances 4 mm
B82730U
Features
■ High resonance frequency
■ Approx. 1.3% stray inductance for symmetrical
interference suppression
Low whirring noise
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2) and UL 1283
UL 1446 class 155(F) electrical insulation system
VDE and UL approvals
Plastic material approved to EN 60335-1, clause 30,
Glow wire test (GWT): EN 60695 (+850 °C)
■ RoHS-compatible
■
■
■
■
■
■
Applications
■
■
■
■
Suppression of common-mode interferences
Compact switch-mode power applications
Electronic ballasts in lamps
Suitable for white goods applications
Terminals
■
■
■
■
Base material CP wire
Hot-dipped
Pins 0.6 mm
Lead spacing 7 8 mm
Marking
Manufacturer’s logo, ordering code (shortened),
date of manufacture (WWYY), factory identification code
Delivery mode
Polystyrene tray (anti-static) in cardboard box
Please read Cautions and warnings and
Important notes at the end of this document.
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B82730G
Power line chokes
B82730U/G
Current-compensated U core double chokes
Dimensional drawing and pin configuration
Vertical version B82730U
2
4
3
8±0.3
2
4
3
Marking
11 max.
_ 0.3
3 +0.5
16.5 max.
16.5 max.
1
7±0.3
1
Tolerances to ISO 2768-C unless otherwise noted
ø0.6±0.1
IND0765-V-E
Dimensions in mm
Horizontal version B82730G
Tolerances to ISO 2768-C unless
otherwise noted
Dimensions in mm
Please read Cautions and warnings and
Important notes at the end of this document.
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Power line chokes
B82730U/G
Current-compensated U core double chokes
Technical data and measuring conditions
Rated voltage VR
300 V AC (50/60 Hz)
Test voltage Vtest
2000 V AC, 2 s (line/line)
Rated temperature TR
+40 C
Rated current IR
Referred to 50 Hz and rated temperature
Rated inductance LR
Measured with Agilent 4284A at 0.1 mA, +20 C
Measuring frequency: LR 1 mH = 100 kHz
LR > 1 mH = 10 kHz
Inductance is specified per winding
Inductance tolerance
–30/50% at +20 °C
Inductance decreaseL/L0
1 mH = 10 kHz
DC resistance Rtyp
Measured at +20 °C, typical values, specified per winding
Solderability (lead-free)
Sn96.5Ag3.0Cu0.5: +(245 5) °C, (3 0.3) s
Wetting of soldering area 95%
(to IEC 60068-2-20, test Ta)
Resistance to soldering heat
(wave soldering)
+(260 5) °C, (10 1) s
(to IEC 60068-2-20, test Tb)
Climatic category
40/125/56 (to IEC 60068-1)
Storage conditions (packaged)
–25 °C … +40 °C, 75% RH
Weight
Approx. 4 g
Approvals
EN 60938-2, UL 1283, UL 1446
Please read Cautions and warnings and
Important notes at the end of this document.
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Power line chokes
B82730U/G
Current-compensated U core double chokes
Characteristics and ordering codes
IR
LR
Lstray,typ
Rtyp
Ordering code
Approvals
A
mH
H
m
Vertical version
0.40
15
200
2400
B82730U3401A020
B82730G3401A020
×
×
0.45
10
140
1750
B82730U3451A020
B82730G3451A020
×
×
Horizontal version
0.60
4.7
70
920
B82730U3601A020
B82730G3601A020
×
×
0.75
3.9
55
700
B82730U3751A020
B82730G3751A020
×
×
0.95
2.2
30
410
B82730U3951A020
B82730G3951A020
×
×
1.0
1.8
25
340
B82730U3102A020
B82730G3102A020
×
×
1.6
1.0
14
160
B82730U3162A020
B82730G3162A020
×
×
2.6
0.33
5
60
B82730U3262A020
B82730G3262A020
×
×
= approval granted
Current derating Iop/IR
versus temperature TA
Impedance |Z| versus frequency f
measured with windings in parallel at +20 °C,
typical values
Please read Cautions and warnings and
Important notes at the end of this document.
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Cautions and warnings
■ Please note the recommendations in our Inductors data book (latest edition) and in the data
sheets.
– Particular attention should be paid to the derating curves given there. Derating must be applied
in case the ambient temperature in the application exceeds the rated temperature of the
component.
– Ensure the operation temperature (which is the sum of the ambient temperature and the
temperature rise caused by losses / self-heating) of the component in the application does not
exceed the maximum value specified in the climatic category.
– The soldering conditions should also be observed. Temperatures quoted in relation to wave
soldering refer to the pin, not the housing.
■ If the components are to be washed varnished it is necessary to check whether the washing
varnish agent that is used has a negative effect on the wire insulation, any plastics that are used,
or on glued joints. In particular, it is possible for washing varnish agent residues to have a
negative effect in the long-term on wire insulation.
Washing processes may damage the product due to the possible static or cyclic mechanical
loads (e.g. ultrasonic cleaning). They may cause cracks to develop on the product and its parts,
which might lead to reduced reliability or lifetime.
■ The following points must be observed if the components are potted in customer applications:
– Many potting materials shrink as they harden. They therefore exert a pressure on the plastic
housing or core. This pressure can have a deleterious effect on electrical properties, and in
extreme cases can damage the core or plastic housing mechanically.
– It is necessary to check whether the potting material used attacks or destroys the wire
insulation, plastics or glue.
– The effect of the potting material can change the high-frequency behaviour of the components.
■ Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to
breakage of the core.
■ Even for customer-specific products, conclusive validation of the component in the circuit can
only be carried out by the customer.
Please read Cautions and warnings and
Important notes at the end of this document.
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Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for certain
areas of application. These statements are based on our knowledge of typical requirements that are
often placed on our products in the areas of application concerned. We nevertheless expressly point
out that such statements cannot be regarded as binding statements about the suitability of our
products for a particular customer application. As a rule we are either unfamiliar with individual
customer applications or less familiar with them than the customers themselves. For these reasons, it is
always ultimately incumbent on the customer to check and decide whether a product with the properties
described in the product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state of the
art, even if they are operated as specified. In customer applications requiring a very high level of
operational safety and especially in customer applications in which the malfunction or failure of an
electronic component could endanger human life or health (e.g. in accident prevention or life-saving
systems), it must therefore be ensured by means of suitable design of the customer application or other
action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or
damage is sustained by third parties in the event of malfunction or failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this publication
may contain substances subject to restrictions in certain jurisdictions (e.g. because they are
classed as hazardous). Useful information on this will be found in our Material Data Sheets on the
Internet (www.tdk-electronics.tdk.com/material). Should you have any more detailed questions, please
contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications contained
in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently, we
cannot guarantee that all products named in this publication will always be available. The
aforementioned does not apply in the case of individual agreements deviating from the foregoing for
customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to our General Terms and
Conditions of Supply.
7. Our manufacturing sites serving the automotive business apply the IATF 16949 standard. The
IATF certifications confirm our compliance with requirements regarding the quality management system
in the automotive industry. Referring to customer requirements and customer specific requirements
(“CSR”) TDK always has and will continue to have the policy of respecting individual agreements. Even
if IATF 16949 may appear to support the acceptance of unilateral requirements, we hereby like to
emphasize that only requirements mutually agreed upon can and will be implemented in our
Quality Management System. For clarification purposes we like to point out that obligations from IATF
16949 shall only become legally binding if individually agreed upon.
8. The trade names EPCOS, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CTVS,
DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK, MotorCap,
PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine, PQvar, SIFERRIT, SIFI,
SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, ThermoFuse, WindCap are
trademarks registered or pending in Europe and in other countries. Further information will be found
on the Internet at www.tdk-electronics.tdk.com/trademarks.
Release 2018-10
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