Power over Ethernet Transformers 60 W series
EFD 20
Series/Type:
Ordering code:
Date:
Version:
B82806D
B82806D0060A**
2018-01-15
1
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Identification/Classification 1
Power over Ethernet Transformers 60 W series
(header 1 + top left bar):
Identification/Classification 2
EFD 20
(header 2 + bottom left header bar):
Ordering code: (top right header bar)
B82806D0060A**
Series/Type: (bottom right header bar)
B82806D
Preliminary data (optional):
Department:
MAG TF T PD
Date:
2018-01-15
Version:
1
EPCOS AG 2018. 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 over Ethernet Transformers 60 W series
EFD 20
B82806D0060A**
B82806D
Construction
EFD 20 ferrite core
SMD-connectors
Features
Very low DC resistance
Turn ratios adopted to different output voltages
Operating temperature range
−40
… + 125 °C (component)
Small SMD package
HV test: Np/Ns: V= 1500 V AC, 50 Hz, 1s
RoHS compatible
UL 1446 class 130 (B) electrical insulation system
Applications
Power over Ethernet (PoE)
Active clamp forward converter
Switch-mode power supplies
Terminals
Gullwing
Marking
Product brand, last 9 digits of ordering code, pin 1 marker, date code, production place identification code
Delivery mode and packing unit
Blister tape
Packing unit: 640 pcs
MAG TF T PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 7
2018-01-15
Power over Ethernet Transformers 60 W series
EFD 20
B82806D0060A**
B82806D
Technical data and measuring conditions
Specified at +25°C if not mentioned otherwise, all values without tolerance are typical values
Typical frequency
200 kHz
Typical input voltage
36 … 72 V DC
)
High voltage*
1500 V AC, 50 Hz, 1 s (Pri,Aux – Sec)
High voltage*
)
500 V AC, 50 Hz, 1 s (Pri – Aux)
Inductance L (1,2 – 3,4) ±30%
Measuring conditions 200 kHz, 100 mV
DC resistance R
DC
Pri(1,2 – 3,4)
DC resistance R
DC
Aux(5 – 6)
DC resistance R
DC
Sec(7,8,9 – 10,11,12)
Leakage inductance Ls (1,2 – 3,4)
200 kHz, 100 mV, Aux and Sec shorted
Resistance to reflow soldering heat
In accordance with JEDEC J-STD-020D
+245 °C for 10 seconds (2 cycles)
Operating temperature range
−40
… +125 °C (component)
Weight
Approx. 14 g
Approvals
UL1446 Class 130 (B) (E320370)
Remark
Connect on PCB pin 1-2, 3-4, 7-8-9, 10-11-12.
Occasional solder bridges between pin 1,2 and 7,8 are
allowed.
*
)
100% outgoing inspection
Characteristics and ordering codes
Specified at +25°C if not mentioned otherwise, all values without tolerance are typical values
L(1,2-3,4)
Turns Ratio
Sec Output Ls
R
DC
Aux
R
DC
Sec
Ordering code
R
DC
Pri
1)
voltage
max
max
max
max
µH
Pri:Sec:Aux:
mΩ
mΩ
mΩ
V
µH
100
1:1:0.5
24
0.25
35
163
35
B82806D0060A240
100
2:1:1
12
0.18
35
160
8
B82806D0060A120
100
4:1:2.3
5
0.32
35
185
4.5
B82806D0060A050
2)
100
6:1:3.5
3.3
0.6
35
180
3.5
B82806D0060A033
1)
2)
If used in an active clamp forward converter.
For the max. power transfer an additional cooling of the transformer maybe required.
Display of ordering codes for EPCOS products
The ordering code for one and the same EPCOS product can be represented differently in data sheets, data
books, other publications, on the EPCOS website, 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
MAG TF T PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 7
2018-01-15
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