EPCOS B82791H2251N020

Power line chokes
Current-compensated ring core double chokes
250 V AC, 0.25 … 0.9 A, 4.7 … 47 mH
Series/Type:
B82791G/H
%BUB4IFFU
October 2008
Date:
© EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
Power line chokes
B82791G/H
Current-compensated ring core double chokes
Rated voltage 250 V AC
Rated current 0.25 A to 0.9 A
Rated inductance 4.7 mH to 47 mH
Construction
■
■
■
■
Current-compensated ring core double choke
Ferrite core
Polycarbonate case (UL 94 V-0)
Sector winding
B82791G
Features
■ Without potting
■ High resonance frequency due to special
winding technique and omission of potting
■ Approx. 1.5% stray inductance
■
■
■
■
■
for symmetrical interference suppression
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2)
UL and VDE approvals
Recyclable
RoHS-compatible
B82791H
Applications
■ Suppression of common-mode interferences
■ Electronic ballasts in lamps
■ Switch-mode power supplies
Terminals
■
■
■
■
■
Base material CuNi18Zn20
Layer composition Ni, Sn
Hot-dipped
Pins ∅ 0.6 mm
Lead spacing 10 × 15 (mm) or 12.7 × 5.08/2.54 (mm)
Marking
Manufacturer, approval signs and/or VDE standard number,
ordering code, graphic symbol, rated current, rated voltage,
rated inductance, date of manufacture (YYWWD)
Delivery mode
Cardboard box
Please read Cautions and warnings and
Important notes at the end of this document.
2
10/08
Power line chokes
B82791G/H
Current-compensated ring core double chokes
Dimensional drawings and pin configurations
Horizontal version (B82791G)
2.1 max.
4
2
1
ø0.6
17.5 max.
10±0.1
3
2.8+0.5
15±0.1
8 max.
17.5 max.
3
4
Tolerances to ISO 2768-M
unless otherwise noted.
2
1
Dimensions in mm
IND0247-U
Vertical version (B82791H)
7.4 max.
5.08±0.1
4
2
1
2.54±0.1
ø0.6
15.2 max.
3
12.7±0.1
17.6 max.
11±0.1
2.8+0.4
0.8 _ 0.1
1)
3
4
Tolerances to ISO 2768-M
unless otherwise noted.
2
1
Dimensions in mm
IND0246-L
1) Vertical version with symmetrical lead spacing (5.08 mm × 12.7 mm) is available on request (B82791K).
Please read Cautions and warnings and
Important notes at the end of this document.
3
10/08
Power line chokes
B82791G/H
Current-compensated ring core double chokes
Technical data and measuring conditions
Rated voltage VR
250 V AC (50/60 Hz)
Test voltage Vtest
1500 V AC, 2 s (line/line)
Rated temperature TR
40 °C or 60 °C
Rated current IR
Referred to 50 Hz and rated temperature
Rated inductance LR
Measured with Agilent 4284A at 10 kHz, 0.1 mA, 20 °C
Inductance is specified per winding.
Inductance tolerance
–30/+50% at 20 °C
Inductance decrease ΔL/L0
< 10% at DC magnetic bias with IR, 20 °C
Stray inductance Lstray,typ
Measured with Agilent 4284A at 10 kHz, 5 mA, 20 °C,
typical values
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. 3 g
Approvals
EN 60938-2, UL 1283
Characteristics and ordering codes
Approvals
IR
LR
Lstray,typ Rtyp
TR
Ordering code
A
mH
μH
mΩ
°C
Horizontal version
0.25
47
600
2400
40
B82791G2251N020 B82791H2251N020 ×
×
0.3
30
500
2200
40
B82791G2301N001 B82791H2301N001 ×
×
0.35
22
400
1900
40
B82791G2351N001 B82791H2351N001 ×
×
0.4
15
250
1350
40
B82791G2401N001 B82791H2401N001 ×
×
0.5
10
170
1000
40
B82791G2501N001 B82791H2501N001 ×
×
Vertical version
0.6
6.8
120
630
40
B82791G2601N001 B82791H2601N001 ×
×
0.7
4.7
75
440
40
B82791G2701N001 B82791H2701N001 ×
×
0.9
4.7
55
250
60
–
B82791H2901N020 ×
×
× = approval granted
Please read Cautions and warnings and
Important notes at the end of this document.
4
10/08
Power line chokes
B82791G/H
Current-compensated ring core double chokes
Impedance |Z| versus frequency f
measured with windings in parallel at 20 °C,
typical values
Impedance |Z| versus frequency f
measured with windings in parallel at 20 °C,
typical values
IND0624-K
10 6
B82791
Ω
| Z|
10 5
10 4
G/H2251N020
G/H2301N001
G/H2351N001
10 3
10 2 4
10
10 5
10 6
Hz 10 7
f
Current derating Iop/IR
versus temperature TA
IND0242-K-E
1.4
I op
I R 1.2
TR = 40 ˚C
TR = 60 ˚C
1.0
0.8
0.6
0.4
0.2
0
0
20
40
60
80
100
˚C 140
TA
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10/08
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.
– 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.
■ 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.
6
10/08
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, EPCOS is 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 an EPCOS 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.epcos.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 the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DSSP, MiniBlue,
MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are
trademarks registered or pending in Europe and in other countries. Further information will be
found on the Internet at www.epcos.com/trademarks.
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