B82801B305A125 EPCOS Inc, B82801B305A125 Datasheet - Page 8

• Manufacturer Part Number: B82801B305A125
• Description: T3623 EE5 TRANSFORMER
• Manufacturer: EPCOS Inc
• Series: B82801Br

Specifications of B82801B305A125

• Turns Ratio - Primary:secondary: 1 : 125
• Inductance: 3mH
• Current Rating: 20A
• Dc Resistance (dcr): 0.8 mOhm Primary, 6.5 Ohm Secondary
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Transformer Type: -
• E.t.: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 495-4049-2

Please read Cautions and warnings and
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. Derating must be applied
– Ensure the operation temperature (which is the sum of the ambient temperature and the
– The soldering conditions should also be observed. Temperatures quoted in relation to wave
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
– It is necessary to check whether the potting material used attacks or destroys the wire
– 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.
in case the ambient temperature in the application exceeds the rated temperature of the
component.
temperature rise caused by losses / self-heating) of the component in the application does not
exceed the maximum value specified in the climatic category.
soldering refer to the pin, not the housing.
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.
insulation, plastics or glue.
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