B78108E1152K000 - EPCOS / TDK

Inductors

RF chokes, BC+ series

Series/Type: B78108E, B78148E

Ordering code:

Date: July 2015

Version:

 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.

Content of header bars 1 and 2 of data sheet will be automatically entered in headers and footers! Please fill in the table and then

change the color to "white". This ensures that the table disappears (invisible) for the customer PDF.

Don't change formatting when entering or pasting text in the table and don't add any cell or line in and to it!

Identification/Classification 1

(header 1 + top left bar):

Inductors

Identification/Classification 2

(header 2 + bottom left header bar):

RF chokes, BC+ series

Ordering code: (top right header bar)

Series/Type: (bottom right header bar) B78108E, B78148E

Preliminary data (optional):

Department: SZ MAG PD IN/T

Date: July 2015

Version:

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 2 of 8

Important notes at the end of this document.

BC chokes

Rated inductance 0.1 μH … 100 μH

Rated current 640 mA .. 7300 mA

Construction

 Ferrite drum core

 Winding: enamel copper wire

 Flame-retardant lacquer coating

Features

 Very high rated current

 High saturation behaviour

 High self-resonance frequency

 Suitable for wave soldering

 RoHS-compatible

Applications

 DC-DC converter

 Filtering of supply voltage & battery charger (EMI)

 RF blocking and filtering

 Decoupling and interference suppression

 For telecommunications, LED and energy-saving

lamps, solar LED lamps, entertainment electronics

Terminals

 Radially bent to 5mm lead spacing (B78148E)

 Central axial leads (B78108E)

 Base material Cu

 Electroplated with nickel and pure tin

Marking

 Inductance indicated by color bands in accordance

with IEC 60062

Delivery mode and packing units

 Taped, Ammo and reel packing

 Packing units:

Ammo

(pcs./pack.)

Reel

(pcs./reel)

Axial 2500 5000

Radial 2500 2000

B78108E

B78148E

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 3 of 8

Important notes at the end of this document.

Dimensional drawings

B78108E (axial leads, taped) Dimensions in mm

Minimum lead spacing 12.5 mm

B78148E (central radial leads, taped) Dimensions in mm

Packing Dimensions in mm

n (mm): axial 72 + 1, radial 42 + 1 L x W x H (max. mm):

w (mm): axial 84 max., radial 54 max. axial: 275 x 80 x 140, radial: 340 x 50 x 210

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 4 of 8

Important notes at the end of this document.

Technical data and measuring conditions

Rated inductance LR Measured with LCR meter Agilent 4284A

or impedance analyzer Agilent 4294A

Measuring current: 1 mA

Measuring temperature: +20 ºC

Q factor Qmin Measured with impedance analyzer Agilent 4294A, +20 °C

Rated temperature TR +40 °C

Rated current IR Maximum permissible DC current based on rated temperature

of +40 °C and component temperature of max. +125 °C

Saturation current Isat Max. permissible DC with inductance decrease

∆L/L0 of approx. 10%, at +20 ºC (Agilent 4284A and 42841A)

DC resistance Rmax Measured at +20 ºC

Resonance frequency fres,min Measured with Agilent 4294A or 8753ES, +20 °C

Solderability (lead-free) Sn95.5Ag3.8Cu0.7: (+245 ±5) °C, (3 ±0.3) s

Wetting of soldering area: ≥ 90% (to IEC 60068-2-20, test Ta)

Resistance to soldering heat (+260 ±5)°C, 10 s (to IEC 60068-2-20, test Tb)

Tensile strength of leads ≥ 20 N (to IEC 60068-2-21, test Ua)

Climatic category 55/125/56 (to IEC 60068-1)

Storage conditions Mounted: –55 °C ... +125 °C

Packaged: –25 °C ... +40 °C, ≤ 75% RH

Weight Approx. 0.38 g

Mounting information:

When bending the leads, take care that the start-of-winding areas at the face ends (protected by glue

and lacquer) are not subjected to any mechanical stress.

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 5 of 8

Important notes at the end of this document.

Characteristics and ordering codes

μH

Tolerance fL

MHz

Qmin f

MHz

Isat

Rmax

fres, min

MHz

Ordering code 1)

(reel packing) 2)

0.1 ±20% ≙ M 1.0 50 7.96 7300 17000 0.015 700 B781*8E1101M000

0.15 1.0 50 7.96 6500 14500 0.017 650 B781*8E1151M000

0.22 1.0 55 7.96 5900 12200 0.019 610 B781*8E1221M000

0.33 1.0 60 7.96 5300 10100 0.023 480 B781*8E1331M000

0.47 1.0 60 7.96 5000 8500 0.027 400 B781*8E1471M000

0.68 1.0 60 7.96 4600 7100 0.031 360 B781*8E1681M000

1.0 ±10% ≙ K 1.0 60 7.96 4150 5800 0.038 260 B781*8E1102K000

1.5 1.0 60 7.96 3800 4800 0.047 235 B781*8E1152K000

2.2 1.0 50 7.96 3400 4000 0.057 150 B781*8E1222K000

3.3 1.0 45 7.96 3050 3250 0.073 75 B781*8E1332K000

4.7 1.0 45 7.96 2750 2700 0.085 35 B781*8E1472K000

6.8 1.0 40 7.96 2450 2300 0.105 25 B781*8E1682K000

10 1.0 35 7.96 2250 2000 0.136 20 B781*8E1103K000

15 0.1 40 0.796 1600 1450 0.230 15 B781*8E1153K000

22 0.1 40 0.796 1300 1250 0.350 12 B781*8E1223K000

33 ±5% ≙ J 0.1 50 0.796 1050 1000 0.550 9.0 B781*8E1333J000

47 0.1 40 0.796 950 870 0.680 8.0 B781*8E1473J000

68 0.1 45 0.796 780 720 0.900 6.5 B781*8E1683J000

100 0.1 60 0.796 640 580 1.450 6.0 B781*8E1104J000

1) Replace the * by code number “0” for axial taping or by “4” for radial taping.

2) For Ammo pack the last digit has to be a “9”. Example: B78108E1223K009

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 6 of 8

Important notes at the end of this document.

Impedance |Z| versus frequency f

measured with impedance analyzer Agilent

4294A or S-parameter network analyzer Agilent

8753ES, typical values at +20 °C

Q factor versus frequency f

measured with impedance analyzer

Agilent 4294A, typical values at +20 °C

Inductance L versus DC load current IDC

measured with LCR meter Agilent 4284A

and 42841A , typical values at +20 °C

Current derating IOP/IR

versus ambient temperature TA

(rated temperature TR = +40 °C)

Inductors

RF chokes, BC+ series B78108E, B78148E

SZ MAG PD IN/T July 2015

Please read Cautions and warnings and Page 7 of 8

Important notes at the end of this document.

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 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.

Display of ordering codes for EPCOS products

The ordering code for one and the same product can be represented differently in data sheets,

data books, other publications and the website of EPCOS, or in order-related documents such as

shipping notes, order confirmations and product labels. The varying represantations of the

ordering codes are due to different processes employed and do not affect the

specifications of the respective products. Detailed information can be found on the Internet

under www.epcos.com/orderingcodes.

Important notes

Page 8 of 8

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, Alu-X, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CSSP,

CTVS, DeltaCap, DigiSiMic, DSSP, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell,

MKD, MKK, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PQSine, SIFERRIT,

SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, TFAP,

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.

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

EPCOS / TDK:

B78108E1153K000 B78148E1101M000 B78148E1151M000 B78148E1682K000 B78108E1221M000

B78148E1472K000 B78108E1682K009 B78148E1101M009 B78148E1222K009 B78148E1333J009

B78108E1472K009 B78108E1331M009 B78108E1153K009 B78148E1104J000 B78148E1332K009

B78108E1102K000 B78148E1471M000 B78108E1471M009 B78108E1102K009 B78148E1223K009

B78108E1683J000 B78148E1153K000 B78148E1221M000 B78108E1151M000 B78108E1103K000

B78148E1332K000 B78108E1222K000 B78148E1331M000 B78148E1473J000 B78108E1331M000

B78108E1221M009 B78148E1681M000 B78148E1473J009 B78108E1222K009 B78108E1683J009

B78108E1152K009 B78148E1682K009 B78108E1681M000 B78108E1152K000 B78148E1152K000

B78148E1103K000 B78108E1101M009 B78108E1223K009 B78108E1682K000 B78148E1223K000

B78108E1332K009 B78108E1472K000 B78148E1102K009 B78108E1333J009 B78148E1104J009

B78108E1101M000 B78108E1104J000 B78148E1331M009 B78108E1104J009 B78108E1473J009

B78148E1221M009 B78148E1153K009 B78148E1683J009 B78148E1472K009 B78148E1471M009

B78108E1332K000 B78148E1102K000 B78108E1103K009 B78148E1151M009 B78108E1223K000

B78148E1333J000 B78148E1683J000 B78108E1151M009 B78108E1471M000 B78108E1473J000

B78108E1681M009 B78108E1333J000 B78148E1222K000 B78148E1681M009 B78148E1152K009

B78148E1103K009 B78108E1472K B78108E1101M B78108E1152K B78108E1471M B78108E1682K

B78108E1331M B78108E1683J B78148E1103K B78108E1681M B78108E1104J B78108E1153K B78108E1473J

B78108E1221M B78108E1333J B78108E1151M B78108E1222K B78108E1102K B78108E1103K B78108E1332K

B78108E1223K