Inductors
Transponder coils
Size 7.8 2.7 2.7 (mm)
Series/Type:
Date:
B82450A*E
October 2015
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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.
Transponder coils
Size 7.8 x 2.7 x 2.7 (mm)
Rated inductance 1 ... 18.52 mH
Sensitivity 10 ... 50 mV/µT
Construction
■
Ferrite core
■
Winding: enamel copper wire welded to terminals
■
Flame-retardant molding
B82450A*E
Features
■
■
■
■
Robust construction for a high mechanical stability
Qualified to AEC-Q200
High sensitivity in X/Y orientation
Suitable for pick and place
and AOI (Automatic Optical Inspection)
■
Suitable for lead-free reflow soldering
■
RoHS-compatible
Applications
■
Car access systems
– immobilizer
– PEPS (Passive Entry, Passive Start)
■
TPMS (Tire Pressure Monitoring Systems)
Terminals
■
Base material CuSn6
■
Layer composition Ni, Sn (lead-free)
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Electro-plated
Marking
■
Marking on component:
Manufacturer, L value in nH, letter “E”, date of
manufacture (YWWD), last five digits of lot number,
internal information
■
Minimum data on reel:
Manufacturer, ordering code, L value,
quantity, date of packing
Delivery mode and packing unit
■
16-mm blister tape, wound on 330-mm
■
Packing unit: 2500 pcs./reel
reel
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
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Transponder coils
Size 7.8 x 2.7 x 2.7 (mm)
Dimensional drawing and layout recommendation
B82450A*E
Dimensions in mm
Taping and packing
Blister tape
Reel
Dimensions in mm
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
10/15
Transponder coils
Size 7.8 x 2.7 x 2.7 (mm)
Technical data and measuring conditions
Rated inductance L
R
Q factor Q
min
Sensitivity S
typ
Resonance frequency f
res
Solderability (lead-free)
B82450A*E
Measured with Agilent 4294A and test fixture Agilent 16034
at frequency f
L
, RMS voltage 500 mV, +20 °C
Measured with Agilent 4294A and test fixture Agilent 16034
at frequency f
Q
, RMS voltage 500 mV, +20 °C
Measured with Helmholtz coil test setup at 125 kHz
Measuring with network analyzer Agilent 8753D, +20 °C
Sn95.5Ag3.8Cu0.7: +(245 5) °C, 3 s
Wetting of soldering area 90%
(based on IEC 60068-2-58)
40/125/56 (to IEC 60068-1)
Mounted: 40 °C … +125 °C
Packaged: –25 °C … +40 °C, 75% RH
Approx. 0.25 g
Climatic category
Storage conditions
Weight
Characteristics and ordering codes
L
R
mH
1.0
2.36
7.2
18.52
3%
35
35
35
30
L
tolerance
Q
min
f
L
, f
Q
kHz
125
125
125
125
S
typ
mV
T
10
16
28
50
f
res
MHz
> 3.0
> 2.0
> 1.0
> 0.4
B82450A1004E000
B82450A2364E000
B82450A7204E000
B82450A1855E001
Ordering code
Characteristics and ordering codes for other L values available on request.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
10/15
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 representations 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.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
10/15
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